SEA to TRI (Seattle to Tri-Cities) Flights

Last Minute Flights from SEA to TRI

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
SEABlountvilleNovember 8 to November 26$595
*Prices include taxes and fees

Cheapest SEA to TRI Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
SEABlountvilleDecember 10 to December 13$425
SEABlountvilleDecember 4 to December 9$426
SEABlountvilleNovember 20 to December 18$435
SEABlountvilleDecember 13 to December 17$445
*Prices include taxes and fees
SEA to TRI Flight Details
Origin airport
Seattle - Tacoma Intl.
Origin airport IATA code
SEA
Destination airport
Tri-Cities Regional
Destination airport IATA code
TRI
Distance
2157 mi

Frequently asked questions

What airlines fly direct from Sea-Tac Airport to TRI?
Right now, you can't fly straight between these airports. You'll have to look for a flight with one or more stops to fly from Seattle - Tacoma Intl. Airport (SEA) to Tri-Cities Airport.
How many flights are there from SEA to TRI?
There are around 13 flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional), so you have plenty of ways to get to Blountville. Just decide on a date that works best for you and lock in your airfare.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
On average, it takes 6 hours and 9 minutes to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional). That's ample time to start your travel journal, do a bit of last-minute trip planning or read about the terrific adventures that await you in Blountville.
What is the flight distance from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Tri-Cities, TN (TRI-Tri-Cities Regional)?
At 2,200 miles (3,500 1), this medium-haul flight is no lengthy marathon, but it's also no walk in the park. Touch down in Blountville feeling rested and recharged by getting some shut-eye en route.
How many morning flights are there from SEA to TRI?
The SEA to TRI air route has good connections, with 40 morning flights each week.

  • Delta Air Lines (DL) lists 21 weekly flights that leave the runway before midday. The earliest departs at 6:00AM.
  • American Airlines (AA) is one more option. It has 19 morning services every week, with the first to depart at 12:59AM.

How many afternoon flights are there from SEA to TRI?
If you're not a morning person, book your seat on one of the 53 afternoon and evening flights available each week from SEA to TRI.

  • Book your seat with American Airlines (AA). This airline offers 30 afternoon and evening flights each week departing from 12:09PM onward.
  • Delta Air Lines (DL) is a great alternative, operating 23 afternoon and evening flights each week. The earliest takes off at 12:00PM.

What is the earliest departure time out of SeaTac to Blountville?
Head out from SEA at 12:59AM and arrive at TRI at 2:49PM. This departure is the earliest you can get on this route.
What is the latest departure time out of SeaTac to Blountville?
Book a seat on the 11:43PM flight from SEA, arriving at 12:01AM at TRI, and give yourself time to take care of those last-minute vacation preparations. This is the latest flight available on this route.
What is the average price from SeaTac to Blountville?
Flights from SEA to TRI begin at around $425. You'll want to move fast, because the best fares don't last forever! This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Seattle to Tri-Cities Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from Seattle to Tri-Cities to attend your cousin’s wedding, to pitch a business idea to your boss, or simply treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find our cheapest flights from SEA to TRI, we’ve got you covered here at Flights.com.

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from Seattle to Tri-Cities, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.