$78 Cheap Flights from Baltimore (BWI) to Duluth (DLH)

View $78 flight on Fri, Nov 28, 2025Opens 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 $78 for one-way flights and $237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines
Fri, Nov 14 - Mon, Nov 17
BWI
Baltimore
DLH
Duluth
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago
Select Sun Country Airlines flight, departing Fri, Nov 14 from Baltimore to Duluth, returning Mon, Nov 17, priced at $237 found 1 day ago
Sun Country Airlines
Thu, Oct 23 - Tue, Oct 28
BWI
Baltimore
DLH
Duluth
$247 Roundtrip, found 5 days ago
$247
Roundtrip
found 5 days ago
Select Sun Country Airlines flight, departing Thu, Oct 23 from Baltimore to Duluth, returning Tue, Oct 28, priced at $247 found 5 days ago
Delta
Wed, Dec 10 - Wed, Dec 24
BWI
Baltimore
DLH
Duluth
$248 Roundtrip, found 19 hours ago
$248
Roundtrip
found 19 hours ago
Select Delta flight, departing Wed, Dec 10 from Baltimore to Duluth, returning Wed, Dec 24, priced at $248 found 19 hours ago
Delta
Fri, Oct 31 - Mon, Nov 3
BWI
Baltimore
DLH
Duluth
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Oct 31 from Baltimore to Duluth, returning Mon, Nov 3, priced at $254 found 2 days ago
Delta
Fri, Nov 14 - Sat, Nov 15
BWI
Baltimore
DLH
Duluth
$258 Roundtrip, found 3 days ago
$258
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Nov 14 from Baltimore to Duluth, returning Sat, Nov 15, priced at $258 found 3 days ago
United
Sat, Oct 25 - Sat, Nov 1
BWI
Baltimore
DLH
Duluth
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select United flight, departing Sat, Oct 25 from Baltimore to Duluth, returning Sat, Nov 1, priced at $263 found 1 day ago
Delta
Wed, Oct 29 - Thu, Nov 13
BWI
Baltimore
DLH
Duluth
$268 Roundtrip, found 6 days ago
$268
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Oct 29 from Baltimore to Duluth, returning Thu, Nov 13, priced at $268 found 6 days ago
United
Thu, Oct 23 - Tue, Oct 28
BWI
Baltimore
DLH
Duluth
$271 Roundtrip, found 5 days ago
$271
Roundtrip
found 5 days ago
Select United flight, departing Thu, Oct 23 from Baltimore to Duluth, returning Tue, Oct 28, priced at $271 found 5 days ago
Delta
Fri, Nov 14 - Sat, Nov 15
BWI
Baltimore
DLH
Duluth
$273 Roundtrip, found 3 days ago
$273
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Nov 14 from Baltimore to Duluth, returning Sat, Nov 15, priced at $273 found 3 days ago
Delta
Wed, Oct 29 - Tue, Nov 4
BWI
Baltimore
DLH
Duluth
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 29 from Baltimore to Duluth, returning Tue, Nov 4, priced at $278 found 2 days ago

Alternative airports near Duluth

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

Select flight to Duluth Intl. DLH. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $465
DLH
Duluth Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $465

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH) cost?
Secure a cheap one-way flight from $78 or cheap return flight from $237 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH)?
November is the least expensive month to fly from BWI to DLH. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BWI to DLH flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH)?
There are no daily direct flights departing from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BWI to DLH?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH)?
To arrive at Duluth Intl. Airport (DLH) without delays, select a flight that leaves from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH) last-minute?
Booking your plane ticket from BWI to DLH right before your trip is generally more expensive. But if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a BWI to DLH flight and hotel package?
Securing a BWI to DLH flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH)?
If you reserved your BWI to DLH flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Duluth Intl.
Airlines serving
Delta, United
Roundtrip price
$237
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 November. 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 2025. You can also book with separate airlines for your outbound and return journeys, from $78 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

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*Available to One Key members.