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$250+ Cheap flights from Kingsport, TN to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Kingsport to Seattle

Keep the following information in mind while searching for Kingsport to Seattle flight deals. Data was last updated julio 30, 2025.

Round-trip from

$369
(American Airlines)

One-way from

$340
(Delta)

Popular in

June

Cheapest in

August

Average price

$708
From Kingsport to Seattle/Tacoma Intl
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One-way flight from Kingsport to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 10% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 julio 30, 2025.

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.
mar. 9/25:23 pmTRI - SEA
1 stop7h 37mAmerican Airlines
mar. 9/96:42 amSEA - TRI
1 stop8h 55mAmerican Airlines
Deal found 7/30$369
This Delta deal was found by Cheapflights users on 7/29. 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.
lun. 9/157:17 pmTRI - SEA
1 stop7h 37mDelta
sáb. 10/1111:20 pmSEA - TRI
1 stop7h 12mDelta
Deal found 7/29$399

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 julio 30, 2025.
Use the filters below to find and compare flights from Kingsport to Seattle that are best for you.

Fly from

Kingsport

Fly to

Seattle

Route

Depart

Return

Price

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

mar. 9/2

5:23 pm-10:00 pm

1 stop7h 37m

Seattle/Tacoma Intl

mar. 9/9

6:42 am-6:37 pm

1 stop8h 55m

$369

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

lun. 9/15

7:17 pm-11:54 pm

1 stop7h 37m

Seattle/Tacoma Intl

sáb. 10/11

11:20 pm-9:32 am

1 stop7h 12m

$399

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

vie. 9/19

7:17 pm-11:54 pm

1 stop7h 37m

$250

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

vie. 9/19

11:29 am-7:09 pm

2 stops10h 40m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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, January is the cheapest month in which you can book a flight from Kingsport to Seattle (average of $238). Flying from Kingsport to Seattle in June is currently the most expensive (average of $389). 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.

What is the cheapest time of day to fly from K1N to SEA?

Find hourly flight availability from Kingsport to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

When flying from Kingsport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Kingsport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Kingsport to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Kingsport to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 julio 30, 2025.
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
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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, January is the cheapest month in which you can book a flight from Kingsport to Seattle (average of $238). Flying from Kingsport to Seattle in June is currently the most expensive (average of $389). 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
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$178Average$294FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$308Average$603FlexibilityNo cancel feeOn-time71%
DeltaCheapest$348Average$611FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$352Average$624FlexibilityNo cancel feeOn-time69%

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