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$107 Cheap Flights from Baltimore (BWI) to Duluth (DLH)

View $107 flight on Mon, Oct 26, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Duluth, MN (DLH-Duluth Intl.)

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Cheap Flights from Baltimore to Duluth (BWI-DLH)

Prices were available within the past 7 days and start at $107 for one-way flights and $318 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Sep 7 - Wed, Oct 7
BWI
Baltimore
DLH
Duluth
$318 Roundtrip, found 1 day ago
$318
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Sep 7 from Baltimore to Duluth, returning Wed, Oct 7, priced at $318 found 1 day ago
United
Mon, Sep 7 - Wed, Oct 7
BWI
Baltimore
DLH
Duluth
$318 Roundtrip, found 1 day ago
$318
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 7 from Baltimore to Duluth, returning Wed, Oct 7, priced at $318 found 1 day ago
Delta
Mon, Sep 7 - Wed, Oct 7
BWI
Baltimore
DLH
Duluth
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Sep 7 from Baltimore to Duluth, returning Wed, Oct 7, priced at $324 found 1 day ago
United
Mon, Sep 7 - Wed, Oct 7
BWI
Baltimore
DLH
Duluth
$334 Roundtrip, found 1 day ago
$334
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 7 from Baltimore to Duluth, returning Wed, Oct 7, priced at $334 found 1 day ago
Delta
Tue, Jan 5 - Sat, Jan 9
BWI
Baltimore
DLH
Duluth
$338 Roundtrip, found 4 days ago
$338
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Jan 5 from Baltimore to Duluth, returning Sat, Jan 9, priced at $338 found 4 days ago
United
Mon, Sep 7 - Wed, Oct 7
BWI
Baltimore
DLH
Duluth
$351 Roundtrip, found 1 day ago
$351
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 7 from Baltimore to Duluth, returning Wed, Oct 7, priced at $351 found 1 day ago
United
Wed, Sep 30 - Wed, Oct 14
BWI
Baltimore
DLH
Duluth
$362 Roundtrip, found 13 hours ago
$362
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Sep 30 from Baltimore to Duluth, returning Wed, Oct 14, priced at $362 found 13 hours ago
United
Mon, Sep 7 - Wed, Oct 7
BWI
Baltimore
DLH
Duluth
$366 Roundtrip, found 1 day ago
$366
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 7 from Baltimore to Duluth, returning Wed, Oct 7, priced at $366 found 1 day ago
United
Thu, Oct 1 - Tue, Oct 6
BWI
Baltimore
DLH
Duluth
$372 Roundtrip, found 2 days ago
$372
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 1 from Baltimore to Duluth, returning Tue, Oct 6, priced at $372 found 2 days ago
Sun Country Airlines
Mon, Aug 24 - Thu, Aug 27
BWI
Baltimore
DLH
Duluth
$391 Roundtrip, found 1 day ago
$391
Roundtrip
found 1 day ago
Select Sun Country Airlines flight, departing Mon, Aug 24 from Baltimore to Duluth, returning Thu, Aug 27, priced at $391 found 1 day ago

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

Baltimore (BWI) to Duluth (DLH) at a glance

Embark on your journey from Baltimore (BWI) to Duluth (DLH) with a choice of airlines catering to this domestic short-haul route. Evaluate offerings from both full-service and budget carriers to discover the itinerary that aligns perfectly with your budget, schedule, and travel aspirations while you uncover the iconic sights and neighborhoods of Duluth. Get all the essential details for flights departing from Baltimore Washington International Thurgood Marshall Airport (BWI) to Duluth International Airport (DLH).

  • Fastest flight duration: around 4 hours in-flight, plus roughly 1h 30m layover with one stop
  • Route distance: roughly 900 miles (1,450 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $125–$550, depending on seasonality and how far ahead you book

Flights from Baltimore Washington International Thurgood Marshall Airport (BWI) to Duluth International Airport (DLH)

Based on recent travel bookings, here are the top airlines preferred for flights from Baltimore to Duluth, typically featuring one-stop service. Common layover points include O'Hare International Airport (ORD), with a layover of approximately 1 hour and 15 minutes, and Minneapolis-St. Paul International Airport (MSP), which offers a longer layover of about 2 hours and 15 minutes. This variety allows you to customize your journey by balancing price, total travel time, and cabin class to find the ideal itinerary.

  • United: This full-service airline provides one-stop travel options, with one-way ticket prices generally falling between $170 and $565. United makes up around 57% of the departures for this route, featuring a flight duration of approximately 4 hours and a total journey time of about 5 hours and 30 minutes, including layover time.
  • Delta: Offering one-stop service, Delta is another prominent full-service carrier, with one-way fares typically ranging from $130 to $470. Delta accounts for about 38% of departures along this route, boasting an in-flight time of 4 hours and an overall travel duration of roughly 5 hours and 30 minutes, factoring in the layover.

Alternative route from Baltimore (BWI) to Duluth (DLH)

  • Washington to Duluth (DCA-DLH): Ronald Reagan Washington National Airport (DCA) is located approximately 30 miles from Baltimore Washington International Thurgood Marshall Airport (BWI). One-way economy fares for this journey generally range between $145 and $545, influenced by the season and how early you secure your tickets. Travelers often encounter one-stop flights, with common layover points at O'Hare International Airport (ORD) and Minneapolis - St. Paul International Airport (MSP). Major airlines servicing this route include United and Delta, and first-class seating is also an option.

How to find the best prices for flights from Baltimore (BWI) to Duluth (DLH)

Getting some of the best deals on flights from Baltimore to Duluth 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 aligns with when most travelers make their reservations. Departures in the afternoon (12pm-6pm) often provide lower prices, while morning flights (5am-12pm) are the most popular. Additionally, flying on Fridays offers both better prices and increased traveler demand.
  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.* Find Duluth hotel and flight deals.
  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 Duluth International Airport from Baltimore Washington International Thurgood Marshall Airport

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

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Duluth, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Duluth International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Duluth 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 Duluth International Airport, Duluth Seaport, a seaport, is located about 7.2 miles away by car, while Duluth Transportation Center, a bus station, is situated approximately 7.4 miles away by car, providing convenient access to both maritime and bus services.

Frequently asked questions

How much does a flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.) cost?
You can find cheap one-way flights from $107 and cheap return flights from $318 Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.) with Expedia. One-way flights usually range from $185 to $678, and return flights typically cost between $350 and $1383. 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 Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth Intl.)?
The cheapest month to fly from BWI to DLH is September 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 Duluth, MN (DLH-Duluth Intl.)?
Enter BWI to DLH and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.)?
Sun Country Airlines is one of the cheapest airlines offering connecting flights from Baltimore Washington Intl. Thurgood Marshall (BWI) to Duluth Intl. (DLH), with round-trip tickets starting from around $246. 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 Duluth, MN (DLH-Duluth Intl.)?
To find a cheap flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth 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 time to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth 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.
What is the earliest flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.)?
The earliest flight from Baltimore Washington International Thurgood Marshall Airport (BWI) to Duluth International Airport (DLH) usually departs at around 5:35 AM. This flight is operated by Delta, making it a convenient option for your travels. 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 Duluth, MN (DLH-Duluth Intl.)?
The most popular departure times for flights from Baltimore Washington International Thurgood Marshall Airport (BWI) to Duluth International Airport (DLH) are in the early morning, from 6am to 9am. About 52% of passengers prefer this time window. Many major carriers, including Delta and United Airlines, offer flights during this window. This timing is favored as it helps you maximize your day upon arrival.
How long does it take to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.)?
A flight from BWI to DLH with a layover takes around 5 hours 50 minutes, with the route covering approximately 943 miles. 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 Duluth, MN (DLH-Duluth Intl.)?
First class seats are offered on the BWI to DLH route with Delta Air Lines and United Airlines.
How do I earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.) flight with Expedia?
It's easy to earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth 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 Duluth from Baltimore Washington Intl. Thurgood Marshall (BWI)?
From Baltimore Washington Intl. Thurgood Marshall (BWI), you can fly into Duluth Intl. (DLH) to reach Duluth. Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Detroit Metropolitan Wayne County (DTW) before reaching Duluth. 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 Duluth, MN (DLH-Duluth Intl.) at the last minute?
Typically, booking a last minute flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth Intl.) flight and hotel package?
Securing a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth Intl.) Duluth 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 Duluth, MN (DLH-Duluth Intl.)?
If you booked your Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Duluth, MN (DLH-Duluth 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
Duluth Intl.
Airlines serving
Delta, United
Roundtrip price
$318
Distance
942 mi

Book with confidence

Baltimore to Duluth Flights

The cheapest times to fly from Baltimore to Duluth

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 Duluth are during the month of September. You can find some of the cheapest flights from Baltimore to Duluth with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Duluth

Sunday is one of the best days to book for cheap flights from Baltimore to Duluth: 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 Duluth

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 Duluth in 2026. You can also book with separate airlines for your outbound and return journeys, from $107 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 Duluth 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 Duluth 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 Duluth Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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