$233 Cheap Flights from Boise (BOI) to Williston (XWA)

View $233 flight on Mon, Oct 13, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to Williston, ND (XWA-Basin Intl.)

Cheap Flights from Boise to Williston (BOI-XWA)

Prices were available within the past 7 days and start at $233 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 14 - Sun, Nov 9
BOI
Boise
XWA
Williston
$238 Roundtrip, found 3 days ago
$238
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 14 from Boise to Williston, returning Sun, Nov 9, priced at $238 found 3 days ago
Delta
Sat, Aug 30 - Wed, Sep 3
BOI
Boise
XWA
Williston
$254 Roundtrip, found 2 days ago
$254
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Aug 30 from Boise to Williston, returning Wed, Sep 3, priced at $254 found 2 days ago
Delta
Mon, Oct 13 - Sun, Nov 9
BOI
Boise
XWA
Williston
$268 Roundtrip, found 3 days ago
$268
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Oct 13 from Boise to Williston, returning Sun, Nov 9, priced at $268 found 3 days ago
United
Sat, Aug 30 - Sun, Sep 7
BOI
Boise
XWA
Williston
$269 Roundtrip, found 3 days ago
$269
Roundtrip
found 3 days ago
Select United flight, departing Sat, Aug 30 from Boise to Williston, returning Sun, Sep 7, priced at $269 found 3 days ago
United
Wed, Aug 20 - Tue, Aug 26
BOI
Boise
XWA
Williston
$273 Roundtrip, found 6 days ago
$273
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from Boise to Williston, returning Tue, Aug 26, priced at $273 found 6 days ago
United
Sat, Aug 30 - Sun, Sep 7
BOI
Boise
XWA
Williston
$282 Roundtrip, found 3 days ago
$282
Roundtrip
found 3 days ago
Select United flight, departing Sat, Aug 30 from Boise to Williston, returning Sun, Sep 7, priced at $282 found 3 days ago
United
Wed, Aug 20 - Tue, Aug 26
BOI
Boise
XWA
Williston
$285 Roundtrip, found 6 days ago
$285
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from Boise to Williston, returning Tue, Aug 26, priced at $285 found 6 days ago
Delta
Tue, Oct 14 - Sat, Nov 8
BOI
Boise
XWA
Williston
$287 Roundtrip, found 3 days ago
$287
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 14 from Boise to Williston, returning Sat, Nov 8, priced at $287 found 3 days ago
Delta
Fri, Oct 10 - Sun, Nov 9
BOI
Boise
XWA
Williston
$297 Roundtrip, found 3 days ago
$297
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Oct 10 from Boise to Williston, returning Sun, Nov 9, priced at $297 found 3 days ago
United
Fri, Aug 22 - Tue, Aug 26
BOI
Boise
XWA
Williston
$298 Roundtrip, found 2 days ago
$298
Roundtrip
found 2 days ago
Select United flight, departing Fri, Aug 22 from Boise to Williston, returning Tue, Aug 26, priced at $298 found 2 days ago

Alternative airports near Williston

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

Select flight to Williston, ND (XWA-Basin Intl.) XWA. Cheapest and Closest option available. Average driving time to city center is 26 minutes. Flights from $312
XWA
Williston, ND (XWA-Basin Intl.)
CheapestClosest
Average driving time to city center26 min
Flights from $312
Flights from Boise (BOI) to Williston (XWA)
Origin airport
Boise
Destination airport
Basin Intl.
Airlines serving
Delta, United
Roundtrip price
$238
Distance
680 mi

Boise to Williston Flights

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

 

The best time to book a flight from Boise to Williston

Sunday is one of the best days to book for cheap flights from Boise 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 Boise 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 Boise to Williston in 2025. You can also book with separate airlines for your outbound and return journeys, from $233 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 Boise 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 Boise 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.

 

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Basin Intl. Airport (XWA) cost?
Secure a cheap one-way flight from $233 or cheap return flight from $238 from Boise Airport (BOI) to Basin Intl. Airport (XWA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Basin Intl. Airport (XWA)?
October is the cheapest month to fly from BOI to XWA. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Boise Airport (BOI) to Basin Intl. Airport (XWA)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from BOI to XWA. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Boise Airport (BOI) to Basin Intl. Airport (XWA)?
You'll need to catch a flight with a layover when traveling from Boise Airport (BOI) to Basin Intl. Airport (XWA). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from BOI to XWA?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Basin Intl. Airport (XWA)?
To avoid possible delays on the Boise Airport (BOI) to Basin Intl. Airport (XWA) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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 Boise Airport (BOI) to Basin Intl. Airport (XWA) last-minute?
Waiting until right before your break to book a ticket from BOI to XWA generally means paying more. While you might find some last-minute discounts, there's no guarantee. Be flexible with your itinerary to boost your chances of scoring a bargain.
Is it cheaper to book a BOI to XWA flight and hotel package?
Securing a BOI to XWA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Basin Intl. Airport (XWA)?
If you booked your BOI to XWA flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket 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, head to our Customer Service portal for more details.

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*Available to One Key members.