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$329+ Cheap flights from Kingsport, TN to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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Cheap flight deals from Kingsport to Seattle

Cheapest flights from Kingsport to Seattle
Explore the most affordable flight options available from Kingsport to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:16 pm
TRI
-
SEA
1 stop7h 39m
American Airlines
Tue 8/259:50 pm
SEA
-
TRI
1 stop9h 47m
American Airlines
Deal found 3/16$329
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:55 pm
TRI
-
SEA
2 stops12h 41m
American Airlines
Tue 5/126:00 am
SEA
-
TRI
1 stop7h 35m
American Airlines
Deal found 3/16$354
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/34:15 pm
TRI
-
SEA
1 stop9h 54m
American Airlines
Tue 4/710:25 am
SEA
-
TRI
1 stop9h 21m
American Airlines
Deal found 3/16$394
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:19 pm
TRI
-
SEA
1 stop7h 57m
Delta
Fri 5/1510:35 pm
SEA
-
TRI
1 stop7h 56m
Delta
Deal found 3/18$463
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/267:17 pm
TRI
-
SEA
1 stop7h 40m
Delta
Sun 3/2911:30 pm
SEA
-
TRI
1 stop7h 20m
Delta
Deal found 3/18$469

Find flight deals from Kingsport to Seattle

Keep the following information in mind while searching for Kingsport to Seattle flight deals. Data was last updated March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$572
Provider with most accurate pricing for Blountville Tri Cities TN/VA-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Blountville Tri Cities TN/VA-Seattle/Tacoma Intl flights.
Search Deals
From Kingsport to Seattle/Tacoma Intl
Search Deals
High demand for flights, 9% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kingsport to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 21, 2026.
Use the filters below to find and compare flights from Kingsport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Wed 5/6

7:19 pm-12:16 am

1 stop7h 57m

Seattle/Tacoma Intl

Fri 5/15

9:35 pm-9:31 am

1 stop8h 56m

$349

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Sat 5/2

5:08 pm-10:47 pm

1 stop8h 39m

Seattle/Tacoma Intl

Tue 5/12

6:00 am-4:35 pm

1 stop7h 35m

$369
Quickest round-trip

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Wed 5/27

6:14 pm-10:59 pm

1 stop7h 45m

Seattle/Tacoma Intl

Sat 5/30

5:15 am-3:47 pm

1 stop7h 32m

$502

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Fri 4/3

4:15 pm-11:09 pm

1 stop9h 54m

Seattle/Tacoma Intl

Tue 4/7

10:25 am-10:57 pm

2 stops9h 32m

$512

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Wed 8/5

5:05 am-12:42 pm

2 stops10h 37m

Seattle/Tacoma Intl

Wed 8/12

1:32 pm-11:53 pm

1 stop7h 21m

$517

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Tue 3/31

3:27 pm-9:06 pm

1 stop8h 39m

Seattle/Tacoma Intl

Sat 4/4

1:44 pm-11:47 pm

1 stop7h 03m

$538

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Mon 8/17

4:12 pm-11:50 pm

2 stops10h 38m

Seattle/Tacoma Intl

Tue 8/25

9:50 pm-10:37 am

1 stop9h 47m

$569
Cheapest one-way

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Wed 4/15

5:05 am-12:33 pm

1 stop10h 28m

$335
Quickest one-way

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Fri 4/10

7:17 pm-11:57 pm

1 stop7h 40m

$360

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Fri 4/10

5:08 pm-11:37 am

2 stops21h 29m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Kingsport to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Kingsport with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kingsport to Seattle

What is the cheapest month to book a flight from Kingsport to Seattle?

Currently, August is the cheapest month in which you can book a flight from Kingsport to Seattle (average of $248). Flying from Kingsport to Seattle in April is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Kingsport to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated March 21, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Kingsport to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,313 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,313 reviews
Delta
7.9
Good
8,313 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,488 reviews
Delta
7.9
Good
8,313 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Crew

8.5

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Kingsport to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Kingsport?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Kingsport to Seattle. 4 airlines have flights to Seattle/Tacoma Intl from Kingsport on a regular basis. Booking flights from Kingsport to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 0 inbound flights from Kingsport per day.

  • How long is the flight from Kingsport to Seattle?

    Airlines like Delta and American Airlines fly from Kingsport to Seattle in about 7h 57m. The time it takes to get you to your destination can typically vary by up to 42m. The distance between Kingsport and Seattle is about 2156 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Kingsport to Seattle that include hotel bookings?

    Yes. In addition to deals on Kingsport to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kingsport to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kingsport to Seattle.

  • Can I find deals for business class flights from Kingsport to Seattle?

    Yes. Cheapflights offers flight deals from Kingsport to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kingsport to Seattle?

    Currently, August is the cheapest month in which you can book a flight from Kingsport to Seattle (average of $248). Flying from Kingsport to Seattle in April is currently the most expensive (average of $384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Ellensburg
Tukwila
Fife
Lakewood
Aberdeen
Shoreline
Marysville
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Kingsport to Seattle

Discover the top 4 airlines that operate flights from Kingsport to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$278FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$308Average$510FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$518FlexibilityNo cancel feeOn-time71%
DeltaCheapest$318Average$539FlexibilityNo cancel feeOn-timeN/A

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