Trip.com
>
Flights
>
Flights to United States
>
Flights to South Dakota
>
Flights to Sioux Falls
>
Flights from Williston to Sioux Falls

Williston to Sioux Falls | Find Cheap Flight Deals

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • Round-trip
  • One way

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Williston to Sioux Falls

The distance between Williston and Sioux Falls is about 738.85 km. The most popular month to Sioux Falls is November. The off-season for travel is December.

Cheapest one-way flight price AED 802
Off-season for travel December
Peak season for travel November
Flight distance 738.85 km

When is the cheapest time to fly from Williston to Sioux Falls?

The best time to book the cheapest flights from Williston to Sioux Falls is between Jul 20 and Jul 27. One-way ticket prices start at AED 802 according to our flight calendar.

Cheapest flights
From price
Search

  • Jul

    29 6
  • 6 13
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31

  • Sep

    31 7
  • 7 14
  • 14 21
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Williston (ISN) to Sioux Falls (FSD) the cheapest?

    Airlines adjust prices for flights from Williston to Sioux Falls based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Williston (ISN) to Sioux Falls (FSD) cost?

    According to Trip.com's data, the lowest price is around AED 3,039.

  • How many airports are there in Sioux Falls (FSD)?

    There are 1 airport(s) near Sioux Falls (FSD): Sioux Falls Regional Airport.

How to find a cheap flight from Williston to Sioux Falls

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Williston to Sioux Falls. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Williston to Sioux Falls ticket.
Tap "Date" on flight search bar to scan through the calender for Williston to Sioux Falls airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sat, Jul 26 at AED 802 for one-way flights.
2
Compare cheap Williston to Sioux Falls flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Williston to Sioux Falls. The cheapest airline operating is United Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your Williston to Sioux Falls route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Williston to Sioux Falls flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Williston to Sioux Falls to get exclusive deals for you.

More Travel Options

  • Top Routes from Williston
  • Top Routes to Sioux Falls
  • Trending Airlines