$109 Cheap Flights from Boston (BOS) to Denver (DEN)

View $109 flight on Mon, Aug 25, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Denver Intl. Airport (DEN)

Cheap Flights from Boston to Denver (BOS-DEN)

Prices were available within the past 7 days and start at $109 for one-way flights and $217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Wed, Aug 20 - Sat, Aug 30
BOS
Boston
DEN
Denver
$217 Roundtrip, just found
$217
Roundtrip
just found
Select Southwest Airlines flight, departing Wed, Aug 20 from Boston to Denver, returning Sat, Aug 30, priced at $217 just found
Delta
Mon, Aug 25 - Wed, Aug 27
BOS
Boston
DEN
Denver
$217 Roundtrip, found 2 hours ago
$217
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, Aug 25 from Boston to Denver, returning Wed, Aug 27, priced at $217 found 2 hours ago
United
Sun, Aug 3 - Sun, Aug 10
BOS
Boston
DEN
Denver
$217 Roundtrip, just found
$217
Roundtrip
just found
Select United flight, departing Sun, Aug 3 from Boston to Denver, returning Sun, Aug 10, priced at $217 just found
JetBlue Airways
Wed, Aug 20 - Sat, Aug 30
BOS
Boston
DEN
Denver
$218 Roundtrip, just found
$218
Roundtrip
just found
Select JetBlue Airways flight, departing Wed, Aug 20 from Boston to Denver, returning Sat, Aug 30, priced at $218 just found
United
Sun, Aug 3 - Tue, Aug 12
BOS
Boston
DEN
Denver
$219 Roundtrip, found 1 hour ago
$219
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Aug 3 from Boston to Denver, returning Tue, Aug 12, priced at $219 found 1 hour ago
United
Sun, Aug 3 - Sun, Aug 10
BOS
Boston
DEN
Denver
$221 Roundtrip, just found
$221
Roundtrip
just found
Select United flight, departing Sun, Aug 3 from Boston to Denver, returning Sun, Aug 10, priced at $221 just found
JetBlue Airways
Tue, Sep 2 - Thu, Sep 11
BOS
Boston
DEN
Denver
$222 Roundtrip, found 1 hour ago
$222
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Tue, Sep 2 from Boston to Denver, returning Thu, Sep 11, priced at $222 found 1 hour ago
Southwest Airlines
Sat, Aug 30 - Mon, Sep 8
BOS
Boston
DEN
Denver
$223 Roundtrip, found 1 hour ago
$223
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Sat, Aug 30 from Boston to Denver, returning Mon, Sep 8, priced at $223 found 1 hour ago
United
Tue, Jul 29 - Wed, Oct 22
BOS
Boston
DEN
Denver
$224 Roundtrip, found 3 days ago
$224
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jul 29 from Boston to Denver, returning Wed, Oct 22, priced at $224 found 3 days ago
American Airlines
Fri, Aug 15 - Sat, Aug 23
BOS
Boston
DEN
Denver
$237 Roundtrip, just found
$237
Roundtrip
just found
Select American Airlines flight, departing Fri, Aug 15 from Boston to Denver, returning Sat, Aug 23, priced at $237 just found

Find the cheapest month to fly from Boston (BOS) to Denver (DEN)

October is typically the cheapest month to fly

From $118 - $237 per traveler.

Graph displaying average flight prices per month

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 $282
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $282
Flights from Boston (BOS) to Denver (DEN)
Origin airport
Logan Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$191
Distance
1749 mi
Average flight time
2 hours 34 mins

Boston to Denver Flights

The cheapest times to fly from Boston 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 Boston to Denver are during the month of August. You can find some of the cheapest flights from Boston to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Denver

Sunday is one of the best days to book for cheap flights from Boston 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 Boston 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 Boston to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 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 Boston 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 Boston 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.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN) cost?
Score affordable return tickets from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN) starting at $191. Grab your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a JetBlue Airways flight leaving BOS on August 5 2025 and touching down at DEN. The price was last updated on July 17 2025 and has not changed since.
What is the cheapest month to fly from BOS to DEN?
The cheapest flights from BOS to DEN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
Skip the layovers and fly nonstop from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN) with 4 carriers, including:

  • United Airlines
  • Southwest Airlines
  • JetBlue Airways

What is the cheapest airline that flies from BOS to DEN?
At the moment, the cheapest airline offering one-way flights from BOS to DEN is JetBlue Airways. You can book a seat on this route from $99. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOS on August 31 2025. Prices were last updated on July 17 2025 and have not changed since.
How many flights per day from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
Each day, an average of 8 direct flights take off from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN). Select the departure date that best fits your schedule.
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
Flights between BOS and DEN are busiest at 7 AM. If you'd like a more relaxed trip and possibly cheaper fares, look for a time when demand is lower.
What day of the week has the most flights from BOS to DEN?
Friday offers the most flights from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN). Consider traveling on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
The earliest flight departing from Logan Intl. Airport (BOS) is at around 5:00AM UTC-5. Hop on this flight and you'll touch down at Denver Intl. Airport (DEN) at approximately 7:55AM UTC-7. The total flight duration is 4h 55m.
How long does it take to fly from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
The average flight time from BOS to DEN is 4 hours and 51 minutes, covering a total distance of 1,750 mi.
What airline has the least delays from BOS to DEN?
With 80% of flights generally arriving on schedule, United Airlines has the best on-time performance for direct flights from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN). To monitor your flight status and receive notifications about any changes, simply head to the Expedia App.
What is the best time to fly from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
To arrive at Denver Intl. Airport (DEN) on time, pick a flight that leaves from Logan Intl. Airport (BOS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Denver from Logan Intl. Airport (BOS)?
If you're boarding a direct flight from Logan Intl. Airport (BOS) to Denver, Denver Intl. Airport (DEN) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN) last-minute?
Last-minute bookings from BOS to DEN are generally more expensive. For the cheapest rates, start looking for flights well in advance. That said, if you're flexible with your travel dates, you may land a cheap fare right before your journey.
Is it cheaper to book a BOS to DEN flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOS to DEN flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the hassle out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Denver Intl. Airport (DEN)?
If you booked your BOS to DEN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.