Cheap Flights from Williston (XWA) to Sidney (SDY)

Popular airlines from Williston, ND (XWA-Basin Intl.) to Sidney, MT (SDY-Sidney-Richland Municipal)

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Frequently asked questions

How much does a flight from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY) cost?
Snag a cheap one-way flight or cheap return flight from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY)?
is the most affordable month to fly from XWA to SDY. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest XWA to SDY flight.
How many flights per day from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY)?
Direct flights from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from XWA to SDY?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*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 Sidney-Richland Municipal Airport (SDY)?
To touch down at Sidney-Richland Municipal Airport (SDY) on schedule, pick a flight that leaves from Basin Intl. Airport (XWA) 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 Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY) last-minute?
Booking your plane ticket from XWA to SDY shortly before your trip is generally more expensive. But if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a XWA to SDY flight and hotel package?
Compared with arranging hotels and flights separately, booking a XWA to SDY flight and hotel package with Expedia could result in significant savings. What's more, having it all in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Basin Intl. Airport (XWA) to Sidney-Richland Municipal Airport (SDY)?
In most cases, you can cancel or modify your XWA to SDY 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 guidelines and fees on flight changes, or if you'd like further information, go to our Customer Service portal.

Travel information

Origin airport
Basin Intl.
Destination airport
Sidney-Richland Municipal
Distance
42 mi

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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 2025. 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. 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.

 

Williston to Sidney Flights

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*Available to One Key members.