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$379+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
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 August 4, 2026.

This Delta deal was found by Cheapflights users on 8/3. 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 10/73:51 pm
TRI
-
SEA
1 stop9h 12m
Delta
Mon 10/1210:35 pm
SEA
-
TRI
1 stop7h 51m
Delta
Deal found 8/3$379
This Delta deal was found by Cheapflights users on 7/30. 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.
Tue 8/251:45 pm
TRI
-
SEA
1 stop8h 20m
Delta
Sat 8/296:00 am
SEA
-
TRI
1 stop6h 50m
Delta
Deal found 7/30$429
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/56:06 pm
TRI
-
SEA
1 stop7h 43m
American Airlines
Sat 9/126:40 am
SEA
-
TRI
1 stop6h 52m
American Airlines
Deal found 7/30$436
This American Airlines deal was found by Cheapflights users on 8/1. 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 9/57:40 am
TRI
-
SEA
1 stop8h 09m
American Airlines
Tue 9/81:24 pm
SEA
-
TRI
1 stop7h 25m
American Airlines
Deal found 8/1$446
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/317:40 am
TRI
-
SEA
1 stop10h 05m
American Airlines
Sun 9/65:15 am
SEA
-
TRI
1 stop9h 25m
American Airlines
Deal found 7/31$471
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/253:29 pm
TRI
-
SEA
1 stop7h 38m
American Airlines
Sat 10/36:18 am
SEA
-
TRI
2 stops9h 16m
American Airlines
Deal found 7/30$505
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 9/25:23 pm
TRI
-
SEA
1 stop8h 03m
American Airlines
Sun 9/65:15 am
SEA
-
TRI
1 stop9h 25m
American Airlines
Deal found 7/30$518
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Wed 10/75:07 am
TRI
-
SEA
1 stop10h 11m
American Airlines
Mon 10/1210:26 am
SEA
-
TRI
2 stops10h 29m
American Airlines
Deal found 8/3$545

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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(Delta)

Popular in

December

Cheapest in

January

Average price

$521
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, 5% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 4, 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

Tue 10/6

12:14 pm-6:35 pm

1 stop9h 21m

Seattle/Tacoma Intl

Wed 10/14

11:03 am-9:29 pm

1 stop7h 26m

$379

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Wed 10/7

3:51 pm-10:03 pm

1 stop9h 12m

Seattle/Tacoma Intl

Mon 10/12

10:35 pm-9:26 am

1 stop7h 51m

$379

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Fri 9/18

3:29 pm-8:07 pm

1 stop7h 38m

Seattle/Tacoma Intl

Mon 9/28

10:36 pm-9:42 am

1 stop8h 06m

$379

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Wed 9/2

5:00 pm-11:57 pm

1 stop9h 57m

Seattle/Tacoma Intl

Wed 9/9

11:35 am-10:20 pm

1 stop7h 45m

$399

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Thu 11/26

10:04 am-4:43 pm

1 stop9h 39m

Seattle/Tacoma Intl

Tue 12/1

10:45 pm-9:18 am

1 stop7h 33m

$399
Quickest round-trip

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Tue 8/25

1:45 pm-7:05 pm

1 stop8h 20m

Seattle/Tacoma Intl

Sat 8/29

6:00 am-3:50 pm

1 stop6h 50m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Sorted by cheapest first

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

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

Airfare is below average for this route at the moment.
Kingsport to Seattle flights typically cost between $443 and $521 in October.
The cheapest round-trip price found within the last 5 days was $379 on Delta (Oct 7-Oct 12).

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 August 4, 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
7.8
Good
8,483 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Lesley,Aug 2023

LIH - SEA

It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
Delta
7.8
Good
8,483 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Lesley,Aug 2023

LIH - SEA

It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.
American Airlines
7.1
Good
11,845 reviews
Delta
7.8
Good
8,483 reviews

Crew

8.5

Comfort

7.8

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Reviews

1 / 20
8.0
Excellent

Lesley,Aug 2023

LIH - SEA

It was a red eye flight . And after take off and the first service the flight attendants were no where to be found except in the galley. When I went to the bathroom, the entrance was blocked by a FA sitting and he basically exhaled loudly as he had to move his legs so I could get in. Never mind I was a comfort plus passenger and traveled to the back of the plane to go to the bathroom. I know I can go up to first class because there are no rules to prohibit me but it followed the “air” rules and was the flight attendants were rude as if I was putting them out. I will always fly delta but get your crew in check. I’m a former flight attendant and the crew is not priviledged. They are hired and paid to do a service.

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. 6 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 American Airlines and Delta fly from Kingsport to Seattle in about 9h 12m. The time it takes to get you to your destination can typically vary by up to 09m. 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Edmonds
Snoqualmie
Tumwater
Centralia
Marysville
Puyallup
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Lynnwood
Poulsbo

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Top 6 airlines flying from Kingsport to Seattle

Discover the top 6 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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$278FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$294Average$513FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$534FlexibilityNo cancel feeOn-time71%
DeltaCheapest$330Average$522FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$386Average$582FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$603Average$848FlexibilityNo cancel feeOn-time75%

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