Title: Williston to Sidney cheap flights (XWA to SDY) - Expedia.com ![Adobe](https://images.trvl-media.com/place/3119/a06eb185-b670-43b5-a222-b9723a9fdab0.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/3119/a06eb185-b670-43b5-a222-b9723a9fdab0.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Williston (XWA) to Sidney (SDY) ## Popular airlines from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:XWA,to:SDY,departure:4/20/2026TANYT&leg2=from:SDY,to:XWA,departure:4/27/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Frequently asked questions ### How much does a flight from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal) cost? ### What is the cheapest month to fly from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### Which airlines fly direct from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### What is the cheapest airline that flies from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### How do I find cheap flights from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### What is the best time to fly from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### What is the earliest flight from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### How long does it take to fly from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### Can you fly business or first class from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ### How do I earn miles on a Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal) flight with Expedia? ### Is it cheaper to buy a plane ticket from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal) at the last minute? ### Is it cheaper to book a Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal) flight and hotel package? ### Can I cancel or change the date of my flight from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)? ## Travel information | Origin airport | Basin Intl. | | ------------------- | ------------------------- | | Destination airport | Sidney-Richland Municipal | | Distance | 42 mi | ## Book with confidence # Williston to Sidney Flights The cheapest times to fly from Williston to Sidney 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 Sidney are during the month of . You can find some of the cheapest flights from Williston to Sidney with Expedia's search tool and vast selection of airlines. The best time to book a flight from Williston to Sidney Sunday is one of the best days to book for cheap flights from Williston to Sidney: 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 Sidney 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 Sidney in 2026\. You can also book with separate airlines for your outbound and return journeys, from 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 Sidney 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](https://www.expedia.com/package-deals). Bundling together your Williston to Sidney 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. \*Flight schedules are subject to change. \*Available to One Key members. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - Vacation Rentals - [Hotels near Sidney Country Club ](https://www.expedia.com/Sidney-Country-Club-Hotels.0-l6310248-0.Travel-Guide-Filter-Hotels) - [Hotels near Richland County Fair Event Center and Fairgrounds ](https://www.expedia.com/Richland-County-Fair-Event-Center-And-Fairgrounds-Hotels.0-l553248621560799347-0.Travel-Guide-Filter-Hotels) - [Hotels near Sidney Health Center ](https://www.expedia.com/Sidney-Health-Center-Hotels.0-l553248621560799346-0.Travel-Guide-Filter-Hotels) - [Hotels near Central Park ](https://www.expedia.com/Central-Park-Hotels.0-l6310241-0.Travel-Guide-Filter-Hotels) - [Sidney Hotels ](https://www.expedia.com/Sidney-Hotels.d3119.Travel-Guide-Hotels) - [Extended Stay Hotels in Sidney ](https://www.expedia.com/Sidney-Hotels-Extended-Stay-Hotels.0-0-d3119-tExtendedStayHotels.Travel-Guide-Filter-Hotels) - [Hotels with an Indoor Pool in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Indoor-Pool.0-0-d3119-tHotelswithIndoorPool.Travel-Guide-Filter-Hotels) - [Hotels with a Pool in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotel-With-Pool.0-0-d3119-tHotelwithPool.Travel-Guide-Filter-Hotels) - [Pet-Friendly Hotels in Sidney ](https://www.expedia.com/Sidney-Hotels-Pet-Friendly-Hotel.0-0-d3119-tPetfriendlyHotel.Travel-Guide-Filter-Hotels) - [Family Hotels in Sidney ](https://www.expedia.com/Sidney-Hotels-Family-Hotel.0-0-d3119-tFamilyHotel.Travel-Guide-Filter-Hotels) - [Hotels with Restaurants in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Restaurants.0-0-d3119-tHotelswithRestaurants.Travel-Guide-Filter-Hotels) - [Hotels with Connecting Rooms in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Adjoining-Rooms.0-0-d3119-tHotelswithAdjoiningRooms.Travel-Guide-Filter-Hotels) - [Hotels with Hot Tubs in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Hot-Tubs.0-0-d3119-tHotelsWithHotTubs.Travel-Guide-Filter-Hotels) - [Hotels with Bars in Sidney ](https://www.expedia.com/Sidney-Hotels-Bar-Hotel.0-0-d3119-tBarHotel.Travel-Guide-Filter-Hotels) - [Cheap Hotels in Sidney ](https://www.expedia.com/Sidney-Hotels-Cheap-Hotels.0-0-d3119-tCheapHotels.Travel-Guide-Filter-Hotels) - [Hotels with Kitchenettes in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Kitchens.0-0-d3119-tHotelswithKitchens.Travel-Guide-Filter-Hotels) - [Hotels with Free Breakfast in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Complimentary-Breakfast.0-0-d3119-tHotelswithComplimentaryBreakfast.Travel-Guide-Filter-Hotels) - [Hotels with smoking rooms in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Smoking-Rooms.0-0-d3119-tHotelswithsmokingrooms.Travel-Guide-Filter-Hotels) - [Hotels with Free Airport Shuttle in Sidney ](https://www.expedia.com/Sidney-Hotels-Hotels-With-Free-Airport-Shuttle.0-0-d3119-tHotelswithFreeAirportShuttle.Travel-Guide-Filter-Hotels) - [4 Star Hotels in Sidney ](https://www.expedia.com/4Star-Sidney-Hotels.s40-0-d3119.Travel-Guide-Filter-Hotels) - [Cabin Rentals in Sidney ](https://www.expedia.com/Sidney-Cabins.d3119-aaCabins.Travel-Guide-Accommodation) - [Seattle to Sidney ](https://www.expedia.com/lp/flights/178307/3119/seattle-to-sidney) - [Salt Lake City to Sidney ](https://www.expedia.com/lp/flights/178302/3119/salt-lake-city-to-sidney) - [Flights to Sidney ](https://www.expedia.com/Cheap-Flights-To-Sidney.d3119.Travel-Guide-Flights) - [Flights from Sidney ](https://www.expedia.com/lp/flights/3119/flights-from-sidney) - [Richland County Fair Event Center and Fairgrounds ](https://www.expedia.com/Richland-County-Fair-Event-Center-And-Fairgrounds-Sidney.d553248621560799347.Vacation-Attraction) - [Central Park ](https://www.expedia.com/Central-Park-Sidney.d6310241.Vacation-Attraction) - [Visit Sidney ](https://www.expedia.com/Sidney.dx3119) - [Sidney Vacations ](https://www.expedia.com/Sidney.d3119.Destination-Travel-Guides) - [Where to stay in Sidney ](https://www.expedia.com/Sidney.dx3119.Where-To-Stay) - [Car rentals near Sidney ](https://www.expedia.com/Car-Rentals-In-Sidney.d3119.Car-Rental-Guide) - [Enterprise Rental Cars in Sidney ](https://www.expedia.com/Enterprise-Car-Rentals-In-Sidney.d3119-c15.Car-Rental-Guide-Suppliers) - [Sidney Vacation Rentals ](https://www.expedia.com/Sidney-Vacation-Rentals.d3119.Travel-Guide-VacationRentals)