Cheap Flights from Tri-Cities (TRI) to Sun Valley (SUN)

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Sun Valley, ID (SUN-Friedman Memorial)

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Flights from Tri-Cities (TRI) to Sun Valley (SUN)
Origin airport
Tri-Cities Regional
Destination airport
Friedman Memorial
Distance
1744 mi

Tri-Cities to Sun Valley Flights

The cheapest times to fly from Tri-Cities to Sun Valley

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

 

The best time to book a flight from Tri-Cities to Sun Valley

Sunday is one of the best days to book for cheap flights from Tri-Cities to Sun Valley: 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 Sun Valley

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 Sun Valley 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 Sun Valley 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 Sun Valley 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.

 

Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to Friedman Memorial Airport (SUN) cost?
Snag a cheap one-way flight or cheap return flight from Tri-Cities Regional Airport (TRI) to Friedman Memorial Airport (SUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Tri-Cities Regional Airport (TRI) to Friedman Memorial Airport (SUN)?
The cheapest month to fly from TRI to SUN is , when there's less demand. Off-peak months are often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Tri-Cities Regional Airport (TRI) to Friedman Memorial Airport (SUN)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from TRI to SUN. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Tri-Cities Regional Airport (TRI) to Friedman Memorial Airport (SUN)?
There are no daily direct flights available from Tri-Cities Regional Airport (TRI) to Friedman Memorial Airport (SUN). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from TRI to SUN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a range of factors, including the time of year and airline.*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 Friedman Memorial Airport (SUN)?
To reach Friedman Memorial Airport (SUN) on schedule, choose a flight that leaves 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 Friedman Memorial Airport (SUN) last-minute?
Booking your ticket from TRI to SUN just before your trip is usually more expensive. However, if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a TRI to SUN flight and hotel package?
Booking a TRI to SUN flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our wide range of hotels and then add activities, flights and car rentals 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 Friedman Memorial Airport (SUN)?
In most instances, you can cancel or modify your TRI to SUN flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further information, visit our Customer Service portal.

*Flight schedules are subject to change.

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