$328 Cheap Flights from Baltimore (BWI) to Williston (XWA)

View $328 flight on Tue, Aug 11, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Williston, ND (XWA-Basin Intl.)

Cheap Flights from Baltimore to Williston (BWI-XWA)

Prices were available within the past 7 days and start at $328 for one-way flights and $338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Jul 4 - Thu, Jul 9
BWI
Baltimore
XWA
Williston
$338 Roundtrip, found 2 days ago
$338
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jul 4 from Baltimore to Williston, returning Thu, Jul 9, priced at $338 found 2 days ago
Delta
Wed, May 13 - Tue, May 19
BWI
Baltimore
XWA
Williston
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 13 from Baltimore to Williston, returning Tue, May 19, priced at $399 found 2 days ago
Delta
Wed, May 20 - Tue, Jun 16
BWI
Baltimore
XWA
Williston
$417 Roundtrip, found 2 days ago
$417
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 20 from Baltimore to Williston, returning Tue, Jun 16, priced at $417 found 2 days ago
Delta
Sat, Jul 4 - Thu, Jul 9
BWI
Baltimore
XWA
Williston
$428 Roundtrip, found 2 days ago
$428
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jul 4 from Baltimore to Williston, returning Thu, Jul 9, priced at $428 found 2 days ago
Delta
Sat, Jul 4 - Thu, Jul 9
BWI
Baltimore
XWA
Williston
$438 Roundtrip, found 2 days ago
$438
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jul 4 from Baltimore to Williston, returning Thu, Jul 9, priced at $438 found 2 days ago
Delta
Wed, May 13 - Tue, May 19
BWI
Baltimore
XWA
Williston
$454 Roundtrip, found 2 days ago
$454
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, May 13 from Baltimore to Williston, returning Tue, May 19, priced at $454 found 2 days ago
Delta
Wed, Jul 8 - Sun, Jul 12
BWI
Baltimore
XWA
Williston
$472 Roundtrip, found 3 days ago
$472
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Jul 8 from Baltimore to Williston, returning Sun, Jul 12, priced at $472 found 3 days ago
Delta
Sat, Jul 4 - Thu, Jul 9
BWI
Baltimore
XWA
Williston
$488 Roundtrip, found 2 days ago
$488
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jul 4 from Baltimore to Williston, returning Thu, Jul 9, priced at $488 found 2 days ago
Delta
Tue, May 26 - Sat, Jun 6
BWI
Baltimore
XWA
Williston
$491 Roundtrip, found 6 hours ago
$491
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, May 26 from Baltimore to Williston, returning Sat, Jun 6, priced at $491 found 6 hours ago
United
Tue, May 26 - Sat, Jun 6
BWI
Baltimore
XWA
Williston
$730 Roundtrip, found 6 hours ago
$730
Roundtrip
found 6 hours ago
Select United flight, departing Tue, May 26 from Baltimore to Williston, returning Sat, Jun 6, priced at $730 found 6 hours ago

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA) cost?
Get a cheap one-way flight from $328 or cheap return flight from $338 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA)?
Traveling in July is a good way to save, as it's the cheapest month for flights between BWI and XWA. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from BWI to XWA. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA)?
Direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to XWA?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the season, carrier 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 Basin Intl. Airport (XWA)?
To reach Basin Intl. Airport (XWA) without delays, opt for a flight that leaves from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Basin Intl. Airport (XWA) last-minute?
Last-minute bookings from BWI to XWA are generally more expensive. To lock in the best rates, start looking for flights well ahead of time. That said, if you're flexible with your travel plans, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book a BWI to XWA flight and hotel package?
Compared with arranging flights and hotels separately, booking a BWI to XWA flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place takes the hassle out of travel planning. Simply pick your flights and choose from our extensive range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Basin Intl. Airport (XWA)?
Typically, you can reschedule or cancel your BWI to XWA flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, head to our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Basin Intl.
Airlines serving
Delta, United
Roundtrip price
$338
Distance
1480 mi

Book with confidence

Baltimore to Williston Flights

The cheapest times to fly from Baltimore to Williston

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

 

The best time to book a flight from Baltimore to Williston

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

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 Williston in 2026. You can also book with separate airlines for your outbound and return journeys, from $328 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 Williston 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 Williston 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 Williston Flights

*Flight schedules are subject to change.

*Available to One Key members.