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Cheap Flights from Tri-Cities (TRI) to Unalaska (DUT)

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Unalaska, AK (DUT)

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Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT) cost?
Grab a cheap one-way flight or cheap return flight from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT) 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 Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT)?
is the least expensive month to fly from TRI to DUT. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest TRI to DUT flight.
How many flights per day from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT)?
Direct flights from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT) 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 TRI to DUT?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT)?
To reach Unalaska Airport (DUT) on time, choose a flight that takes off from Tri-Cities Regional Airport (TRI) 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 Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT) last-minute?
Booking your plane ticket from TRI to DUT shortly before your trip is usually more expensive. However, if you're flexible with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a TRI to DUT flight and hotel package?
Opting for a TRI to DUT flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tri-Cities Regional Airport (TRI) to Unalaska Airport (DUT)?
If you reserved your TRI to DUT flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

Origin airport
Tri-Cities Regional
Destination airport
Unalaska
Distance
4012 mi

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Tri-Cities to Unalaska Flights

The cheapest times to fly from Tri-Cities 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 Tri-Cities to Unalaska are during the month of . You can find some of the cheapest flights from Tri-Cities to Unalaska with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tri-Cities to Unalaska

Sunday is one of the best days to book for cheap flights from Tri-Cities 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 Tri-Cities 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 Tri-Cities to Unalaska 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 Tri-Cities 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 Tri-Cities 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.

 

Tri-Cities to Unalaska Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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