Cheap Flights from Tri-Cities (TRI) to Seattle (SEA)

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Seattle

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Frequently asked questions

Is it cheaper to buy a plane ticket from TRI to Sea-Tac Airport last minute?
Being spontaneous is a fantastic way to discover the world, but it isn't always the best way to grab a bargain plane ticket. Think about booking your Tri-Cities Regional Airport (TRI) to Sea-Tac Airport trip ahead of time instead of leaving it to the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. We recommend saving that spontaneity for when you arrive in Sea-Tac Airport!
What airports do you fly into for Seattle from Blountville?
Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) are your choices when setting off from Blountville to Seattle. Around 19 kilometers south of central Seattle, Seattle - Tacoma Intl. Airport (SEA) is the city's principal entry point. Think about things such as flight schedules and the distance to your hotel before deciding where you fly into. Space Needle and Pike Place Market are a couple of leading attractions to add to your must-see list when you arrive at your destination.
Can I change the date of my flight from Tri-Cities Airport to Seattle - Tacoma Intl. Airport (SEA)?
It's so easy to make changes to your Tri-Cities Regional Airport (TRI) to Seattle - Tacoma Intl. Airport (SEA) trip yourself. Access your details via the Expedia Trips portal and click on "change flight." Search for new flights and choose the one that better fits your plans. You'll get an estimate of flight change fees that may apply. You can also head to our Customer Service portal to connect with our Virtual Agent and quickly get answers to your questions.

Travel information

Origin airport
Tri-Cities Regional
Destination airport
Seattle - Tacoma Intl.
Distance
3451 km

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