Cheap Flights from Sioux Falls (FSD) to Unalaska (DUT)

Popular airlines from Sioux Falls Regional Airport (FSD) to Unalaska, AK (DUT)

Frequently asked questions

How much does a flight from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT) cost?
Grab a cheap one-way flight or cheap return flight from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT)?
The cheapest month to fly from FSD to DUT is , when there's less demand. Off-peak season is usually when better flight deals are available between these airports.
What is the cheapest airline that flies from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest FSD to DUT flight.
How many flights per day from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT)?
You'll need to catch a flight with a layover if you're traveling from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from FSD to DUT?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change 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 Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT)?
To arrive at Unalaska Airport (DUT) without delays, book a flight that leaves from Sioux Falls Regional Airport (FSD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT) last-minute?
Last-minute bookings from FSD to DUT are generally more expensive. To secure the lowest rates, start looking for flights well ahead of time. That said, if your travel plans are flexible, you may land a cheap ticket right before your trip.
Is it cheaper to book a FSD to DUT flight and hotel package?
Compared with arranging hotels and flights separately, booking a FSD to DUT flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the stress out of planning your trip. Just pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Sioux Falls Regional Airport (FSD) to Unalaska Airport (DUT)?
You can usually reschedule or cancel your FSD to DUT flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Sioux Falls Regional
Destination airport
Unalaska
Distance
3124 mi

Book with confidence

Book with confidence

Sioux Falls to Unalaska Flights

The cheapest times to fly from Sioux Falls to Unalaska

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

 

The best time to book a flight from Sioux Falls to Unalaska

Sunday is one of the best days to book for cheap flights from Sioux Falls to Unalaska: 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 Sioux Falls to Unalaska

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 Sioux Falls to Unalaska 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 Sioux Falls to Unalaska 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 Sioux Falls to Unalaska 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.

 

Sioux Falls to Unalaska Flights

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*Available to One Key members.