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

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

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Find available prices by choosing your travel dates.

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 $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
United
Sun Country Airlines
Delta
Delta
Sun Country Airlines
Delta
Delta
Sun Country Airlines
Delta
Flights from Baltimore (BWI) to Duluth (DLH)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Duluth Intl.
Airlines serving
Delta, United
Roundtrip price
$248
Distance
942 mi

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 May. 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.

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Duluth Intl. Airport (DLH) cost?
Discover the latest flight deals from BWI to DLH by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to DLH?
The cheapest flights from BWI to DLH are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BWI to DLH?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BWI to DLH. Sort your results by “Price (lowest to highest)” to snap up a great deal.
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.

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*Available to One Key members.