$273 Cheap Flights from Williston (XWA) to Pasco (PSC)

View $273 flight on Mon, Jun 1, 2026Opens in a new window

Popular airlines from Williston, ND (XWA-Basin Intl.) to Tri-Cities Airport (PSC)

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Cheap Flights from Williston to Pasco (XWA-PSC)

Prices were available within the past 7 days and start at $273 for one-way flights and $901 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Mar 20 - Sun, Mar 22
XWA
Williston
PSC
Pasco
$901 Roundtrip, found 3 days ago
$901
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Mar 20 from Williston to Pasco, returning Sun, Mar 22, priced at $901 found 3 days ago
United
Fri, Mar 20 - Mon, Mar 23
XWA
Williston
PSC
Pasco
$902 Roundtrip, found 2 days ago
$902
Roundtrip
found 2 days ago
Select United flight, departing Fri, Mar 20 from Williston to Pasco, returning Mon, Mar 23, priced at $902 found 2 days ago
United
Fri, Mar 20 - Mon, Mar 23
XWA
Williston
PSC
Pasco
$1,007 Roundtrip, found 2 days ago
$1,007
Roundtrip
found 2 days ago
Select United flight, departing Fri, Mar 20 from Williston to Pasco, returning Mon, Mar 23, priced at $1,007 found 2 days ago
Delta
Fri, Mar 20 - Mon, Mar 23
XWA
Williston
PSC
Pasco
$1,037 Roundtrip, found 2 days ago
$1,037
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Mar 20 from Williston to Pasco, returning Mon, Mar 23, priced at $1,037 found 2 days ago
Delta
Fri, Mar 20 - Sun, Mar 22
XWA
Williston
PSC
Pasco
$1,050 Roundtrip, found 3 days ago
$1,050
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Mar 20 from Williston to Pasco, returning Sun, Mar 22, priced at $1,050 found 3 days ago
Delta
Sun, Mar 29 - Sun, Apr 5
XWA
Williston
PSC
Pasco
$1,064 Roundtrip, found 2 days ago
$1,064
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Mar 29 from Williston to Pasco, returning Sun, Apr 5, priced at $1,064 found 2 days ago
Delta
Sun, Mar 29 - Sun, Apr 5
XWA
Williston
PSC
Pasco
$1,099 Roundtrip, found 2 days ago
$1,099
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Mar 29 from Williston to Pasco, returning Sun, Apr 5, priced at $1,099 found 2 days ago
Delta
Fri, Mar 20 - Sun, Mar 22
XWA
Williston
PSC
Pasco
$1,122 Roundtrip, found 3 days ago
$1,122
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Mar 20 from Williston to Pasco, returning Sun, Mar 22, priced at $1,122 found 3 days ago
Delta
Sun, Mar 29 - Sun, Apr 5
XWA
Williston
PSC
Pasco
$1,127 Roundtrip, found 2 days ago
$1,127
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Mar 29 from Williston to Pasco, returning Sun, Apr 5, priced at $1,127 found 2 days ago
Delta
Fri, Mar 20 - Mon, Mar 23
XWA
Williston
PSC
Pasco
$1,146 Roundtrip, found 2 days ago
$1,146
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Mar 20 from Williston to Pasco, returning Mon, Mar 23, priced at $1,146 found 2 days ago

Frequently asked questions

How much does a flight from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC) cost?
Get a cheap one-way flight from $273 or cheap return flight from $901 from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC)?
The cheapest month to fly from XWA to PSC is March, when demand is low. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest XWA to PSC flight.
How many flights per day from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC)?
You'll have to catch a flight with a layover if you're traveling from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from XWA to PSC?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending 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 Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC)?
Choose a flight from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC) last-minute?
Booking your plane ticket from XWA to PSC right before your journey is generally more expensive. But if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a XWA to PSC flight and hotel package?
You can save money by booking a XWA to PSC flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your preferred accommodations and flights, you can add extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Basin Intl. Airport (XWA) to Tri-Cities Airport (PSC)?
It's generally possible to cancel or reschedule your XWA to PSC flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Basin Intl.
Destination airport
Tri-Cities
Roundtrip price
$901
Distance
732 mi

Book with confidence

Williston to Pasco Flights

The cheapest times to fly from Williston to Pasco

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

 

The best time to book a flight from Williston to Pasco

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

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 Williston to Pasco in 2026. You can also book with separate airlines for your outbound and return journeys, from $273 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 Williston to Pasco 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 Williston to Pasco 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.

 

Williston to Pasco Flights

*Flight schedules are subject to change.

*Available to One Key members.