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$120 Cheap Flights from Baltimore (BWI) to Denver (DEN)

View $120 flight on Sun, Sep 27, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Denver Intl. Airport (DEN)

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Cheap Flights from Baltimore to Denver (BWI-DEN)

Prices were available within the past 7 days and start at $120 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Oct 30 - Sun, Nov 1
BWI
Baltimore
DEN
Denver
$240 Roundtrip, just found
$240
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 30 from Baltimore to Denver, returning Sun, Nov 1, priced at $240 just found
Frontier Airlines
Fri, Oct 30 - Sun, Nov 1
BWI
Baltimore
DEN
Denver
$250 Roundtrip, just found
$250
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 30 from Baltimore to Denver, returning Sun, Nov 1, priced at $250 just found
Frontier Airlines
Mon, Sep 14 - Wed, Sep 16
BWI
Baltimore
DEN
Denver
$260 Roundtrip, just found
$260
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Sep 14 from Baltimore to Denver, returning Wed, Sep 16, priced at $260 just found
Frontier Airlines
Fri, Oct 30 - Sun, Nov 1
BWI
Baltimore
DEN
Denver
$263 Roundtrip, just found
$263
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 30 from Baltimore to Denver, returning Sun, Nov 1, priced at $263 just found
Frontier Airlines
Sun, Nov 15 - Tue, Nov 24
BWI
Baltimore
DEN
Denver
$269 Roundtrip, found 15 hours ago
$269
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Sun, Nov 15 from Baltimore to Denver, returning Tue, Nov 24, priced at $269 found 15 hours ago
Frontier Airlines
Fri, Oct 30 - Sun, Nov 1
BWI
Baltimore
DEN
Denver
$270 Roundtrip, just found
$270
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Oct 30 from Baltimore to Denver, returning Sun, Nov 1, priced at $270 just found
Southwest Airlines
Tue, Nov 17 - Wed, Nov 18
BWI
Baltimore
DEN
Denver
$279 Roundtrip, found 1 day ago
$279
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Nov 17 from Baltimore to Denver, returning Wed, Nov 18, priced at $279 found 1 day ago
United
Wed, Oct 7 - Fri, Oct 16
BWI
Baltimore
DEN
Denver
$280 Roundtrip, found 1 day ago
$280
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 7 from Baltimore to Denver, returning Fri, Oct 16, priced at $280 found 1 day ago
American Airlines
Wed, Sep 16 - Sat, Sep 19
BWI
Baltimore
DEN
Denver
$339 Roundtrip, just found
$339
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 16 from Baltimore to Denver, returning Sat, Sep 19, priced at $339 just found
Delta
Wed, Sep 16 - Sat, Sep 19
BWI
Baltimore
DEN
Denver
$339 Roundtrip, just found
$339
Roundtrip
just found
Select Delta flight, departing Wed, Sep 16 from Baltimore to Denver, returning Sat, Sep 19, priced at $339 just found

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $260
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $260

Find the cheapest month to fly from Baltimore (BWI) to Denver (DEN)

September is typically the cheapest month to fly

From $240 - $240 per traveler.

What you need to know for your flight from Baltimore Washington Intl. Thurgood Marshall to Denver Intl.

Baltimore (BWI) to Denver (DEN) at a glance

Travel between Baltimore (BWI) and Denver (DEN) with a selection of airlines on this domestic short-haul route. Evaluate your options among both full-service and low-cost carriers to discover the flight that best aligns with your budget and schedule. As you prepare to explore the iconic sights and vibrant neighborhoods of Denver, be sure to review essential details for flights from Baltimore Washington International Thurgood Marshall Airport (BWI) to Denver International Airport (DEN).

  • Fastest flight duration: around 4 hours non-stop
  • Route distance: roughly 1,500 miles (2,410 km)
  • Flights per week: around 30+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $80–$445, depending on seasonality and how far ahead you book

Flights from Baltimore Washington International Thurgood Marshall Airport (BWI) to Denver International Airport (DEN)

Based on the latest traveler bookings, here are the top airlines favored for flights from Baltimore to Denver, primarily offering non-stop and one-stop options. Popular layover spots include Hartsfield-Jackson Atlanta International Airport (ATL) with a layover of about 1 hour and 45 minutes, Charlotte-Douglas International Airport (CLT) with approximately 1 hour and 15 minutes, and Detroit Metropolitan Wayne County Airport (DTW), also around 1 hour and 15 minutes. These choices allow you to tailor your itinerary by balancing price, total travel time, and cabin class.

  • Southwest Airlines: This budget-friendly airline provides both non-stop and one-stop options, with one-way ticket prices generally between $100 and $445. It makes up about 48% of the departures on this route, with non-stop flights taking around 4 hours.
  • United: As a full-service airline, United offers both non-stop and one-stop services, with one-way fares usually ranging from $110 to $445. It represents approximately 36% of the departures for this route, with a typical non-stop flight duration of 4 hours.
  • Frontier Airlines: A low-cost option, Frontier provides non-stop and one-stop flights, with one-way fares typically between $80 and $235. It accounts for roughly 11% of departures on this route, with a non-stop flight time of about 4 hours.
  • American Airlines: This full-service carrier offers one-stop journeys, with one-way fares generally ranging from $110 to $430. It makes up around 3% of departures on this route, with an in-flight duration of 5 hours and 30 minutes, totaling about 7 hours including layover time.
  • Delta: Another full-service airline, Delta provides one-stop flights with one-way fares typically between $110 and $535. It constitutes about 2% of departures on this route, with a flying time of 5 hours and 30 minutes, resulting in a total travel duration of around 7 hours, including layovers.

Travelers flying from Baltimore to Denver have the option to enhance their experience by upgrading their flight. United offers first class and premium economy service, while Delta provides premium economy seating.

Best time to fly from Baltimore (BWI) to Denver (DEN)

The most popular months for travelers flying from Baltimore to Denver are April, June, and July, when peak temperatures in Denver reach up to 72.1°F in July. If you prefer quieter travel, consider January, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 28.4°F. For better deals, September usually offers the lowest average one-way fare around $175. Flight availability peaks in June, with approximately 50 flights per week, making it easier to find convenient departure times.

  • Cheapest time to fly: September usually offers good deals with average one-way fare around $175, roughly 20% cheaper than the yearly average.
  • More budget-friendly months to fly: October and August typically offer average one-way fares of around $190.
  • Most flight options: June has the highest number of flights from Baltimore to Denver, with approximately 50 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January28.4°F (-2.0°C)Slightly Low21$220
February28.6°F (-1.9°C)Slightly Low21$233
March38.5°F (3.6°C)Average27$249
April45.3°F (7.4°C)Slightly High31$230
May54.0°F (12.2°C)Average39$216
June66.9°F (19.4°C)Slightly High50$217
July72.1°F (22.3°C)Slightly High47$202
August71.2°F (21.8°C)Average44$190
September65.1°F (18.4°C)Average43$175
October50.2°F (10.1°C)Average42$189
November38.5°F (3.6°C)Slightly Low35$242
December28.9°F (-1.7°C)Average37$275

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative routes from Baltimore (BWI) to Denver (DEN)

  • Baltimore to Colorado Springs (BWI-COS): Colorado Springs Airport (COS) lies approximately 73 miles from Denver International Airport (DEN). One-way economy ticket prices for this route generally fluctuate between $120 and $470, influenced by the season and booking timing. Travelers can choose between one-stop and non-stop flights, with common layover points being Denver International Airport (DEN) and Dallas-Fort Worth International Airport (DFW). Major airlines servicing this route include Southwest Airlines (a budget carrier) and United. Additionally, first-class service is offered on this route.
  • Washington to Denver (DCA-DEN): Ronald Reagan Washington National Airport (DCA) is located roughly 30 miles from Baltimore Washington International Thurgood Marshall Airport (BWI). The cost of one-way economy fares on this route typically varies from $50 to $340, depending on the travel season and how early you book. This route includes both non-stop and one-stop flight options. Key airlines for this route are Frontier Airlines (a low-cost option) and United. First-class service is also available for travelers.

How to find the best prices for flights from Baltimore (BWI) to Denver (DEN)

Getting some of the best deals on flights from Baltimore to Denver is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Evening departures (6 PM-12 AM) often offer lower prices, while Morning flights (5 AM-12 PM) remain the most popular. Additionally, flying on Monday typically provides cheaper options, although Thursday is the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Denver International Airport from Baltimore Washington International Thurgood Marshall Airport

Denver welcomes travelers from Baltimore with a range of transport options based on price, convenience, and proximity. Here's how to reach Denver efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Denver, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Denver International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Denver International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Denver International Airport, Jeppesen Terminal Station, a metro station, is located about 0.1 miles away on foot, providing convenient access to the city's rail system.

Frequently asked questions

How much does a flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) cost?
You can find cheap one-way flights from $120 and cheap return flights from $240 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) with Expedia. One-way flights usually range from $171 to $863, and return flights typically cost between $310 and $1317. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
The cheapest month to fly from BWI to DEN is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
United operates around 20 direct flights from BWI to DEN every week.
What is the cheapest airline that flies from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
United is one of the cheapest airlines offering nonstop flights from Baltimore, MD (BWI) to Denver, CO (DEN), with round-trip tickets starting from around $322. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Baltimore, MD (BWI) to Denver, CO (DEN) will differ from traveler to traveler. If you like to fly early, WN offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from BWI to DEN, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
You can find approximately 8 nonstop flights per day from Baltimore Washington Intl. Thurgood Marshall (BWI) to Denver Intl. (DEN). For more options, look at flights that include layovers.
What is the earliest flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Baltimore, MD (BWI) to Denver, CO (DEN) typically departs at around 5:00 AM, operated by American Airlines. This is a seasonal service active in December, making it a good option for holiday travel. An early departure allows you to arrive in Denver with plenty of time to enjoy the day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time window. Many major carriers, including Southwest Airlines and United Airlines, offer flights during this window. This timing works well because it allows you to arrive in Denver with a full day ahead of you.
How long does it take to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
Direct flights from BWI to DEN usually take about 4 hours, traveling roughly 1,487 miles. If you opt for a connecting flight, expect to add around 3 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
First class seats are offered on the BWI to DEN route. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How much is a business class flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
A direct, return business class ticket from Baltimore (BWI) to Denver (DEN) typically costs between $1,380 - $1,887. A non-stop, one-way business class flight is usually around $503 - $663. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Baltimore Washington Intl. Thurgood Marshall (BWI)?
From Baltimore Washington Intl. Thurgood Marshall (BWI), you can fly into Denver Intl. (DEN) to reach Denver. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Midway Intl. (MDW), Evers Intl. (JAN) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) Denver Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.)?
If you booked your Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$240
Distance
1487 mi
Average flight time
1 hour 49 mins

Book with confidence

Baltimore to Denver Flights

The cheapest times to fly from Baltimore to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Denver are during the month of October. You can find some of the cheapest flights from Baltimore to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Denver

Sunday is one of the best days to book for cheap flights from Baltimore to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Denver in 2026. You can also book with separate airlines for your outbound and return journeys, from $120 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Baltimore to Denver Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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