The cheapest times to fly from TRI to SEA are
- January 8th to March 4th
- April 23rd to May 6th
- August 13th to November 18th (except the week of August 27th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from TRI to SEA is late January and early February. Prices can be as high as $1068 for Sunday flights during late July, or as low as $355 for Tuesday flights around late January and early February.
When to Fly to Seattle
Flying from Bristol/Johnson City/Kingsport, TN (TRI) to Seattle, WA (SEA) will usually cost between $356 to $662 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $369. Due to high demand the most expensive time to fly is late July, with an average price of $651. Planning your trip to low-cost times can easily save you $282 on economy flights and even more on first-class flights. Generally, any price below $418 can be considered a good price for a round-trip TRI to SEA flight.
See below for a graph of average weekly prices for the TRI to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the TRI to SEA flight is much cheaper than the average and costs less than the average flight leaving from Bristol. The average price per mile (for a direct flight) is $0.12, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to fly to SEA, and Wednesday the cheapest day to fly back into TRI. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $144 (27%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $393. Return trip prices are from the SEA to TRI flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from TRI to SEA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 52 minutes may not be realistic.
Flight Questions Answered
Still have questions about flying from TRI to SEA? We’ve got answers.
Which airlines fly this route?
You can find 4 major airlines flying this route most often: Alaska, American, Delta, United, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to Tri Cities Airport?
The distance between the two airports is roughly 2157 miles or 3471 kilometers.
How long does it take to fly from TRI to SEA?
The real-world flight time for a nonstop TRI to SEA flight is about 4 hour 52 minutes.
How many flights go between Bristol/Johnson City/Kingsport, TN and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 66 available flights from TRI to SEA.
Airport Location Info
|Origination airport name||Tri Cities Airport|
|City||Bristol/Johnson City/Kingsport, TN|
|Country||the United States|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.