$298 Cheap United flights San José (SJO) to Williston (XWA)

View $298 flight on Mon, Aug 4, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$298 Cheap United flights San José (SJO) to Williston (XWA)

Prices were available within the past 7 days and start at $298 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from San José (SJO) to Williston (XWA)
Origin airport
Juan Santamaría Intl.
Destination airport
Basin Intl.
Distance
2876 mi

Frequently asked questions

How much is a United Airlines flight from Juan Santamaria Intl. Airport (SJO) to Basin Intl. Airport (XWA)?
Apply the "Price (lowest to highest)" filter on Expedia to find cheap United Airlines return flights from SJO to XWA. Affordable one-way tickets from $298 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SJO to XWA with United Airlines?
Search for return or one-way flights to Williston in February or December. You could find a cheap fare with United Airlines during these off-peak months.
What is the cheapest time to book flights from Juan Santamaria Intl. Airport (SJO) to Basin Intl. Airport (XWA) with United Airlines?
Start your search for United Airlines flights from SJO to XWA about one month before you want to leave. The cheapest time to book an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Juan Santamaria Intl. Airport (SJO) to Basin Intl. Airport (XWA)?
Fill in your dates, click search and check "Nonstop" on Expedia to browse any direct flights from SJO to XWA with United Airlines or other carriers.
What is the earliest United Airlines flight from SJO to XWA?
To find the earliest departure from SJO to XWA with United Airlines, filter your results by "Morning" and "Early Morning." Choosing an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Williston?
Take a United Airlines flight from Juan Santamaria Intl. Airport (SJO) to Williston, and you'll most likely land at Basin Intl. Airport (XWA). This is the airline's primary hub in this city.
Why fly with United Airlines from SJO to XWA?
A rewarding loyalty program and the ability to rack up points through United Mileage Plus are the start of the reasons to jet off from SJO to XWA with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can receive OneKeyCash™* on top of United Airlines's loyalty program earnings. It's yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Juan Santamaria Intl. Airport (SJO) to Basin Intl. Airport (XWA)?
Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that. For more information about modifying your flights, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to adjust your plans without additional charges, check the "Changes included" and "No cancel fee" filters when organizing your trip.

Explore a world of travel with Expedia

*Available to One Key members.