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$517+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — SEA
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$517
(Delta)

Popular in

June

Cheapest in

September

Average price

$674
Provider with most accurate pricing for Blountville Tri Cities TN/VA-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Blountville Tri Cities TN/VA-Seattle/Tacoma Intl flights.
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From Kingsport to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 29, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 11/2512:50 pmTRI - SEA
1 stop7h 54mDelta
Tue 12/211:00 pmSEA - TRI
1 stop7h 31mDelta
Deal found 10/28$517
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/257:00 amTRI - SEA
1 stop10h 59mAmerican Airlines
Mon 12/112:59 amSEA - TRI
2 stops11h 09mAmerican Airlines
Deal found 10/28$522
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/113:34 pmTRI - SEA
1 stop8h 05mAmerican Airlines
Sat 11/1510:07 pmSEA - TRI
1 stop7h 10mAmerican Airlines
Deal found 10/27$555
This Delta deal was found by Cheapflights users on 10/27. 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 10/303:48 pmTRI - SEA
1 stop7h 57mDelta
Tue 11/411:10 pmSEA - TRI
1 stop7h 12mDelta
Deal found 10/27$595
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 10/307:04 amTRI - SEA
1 stop8h 41mAmerican Airlines
Mon 11/312:41 amSEA - TRI
2 stops11h 27mAmerican Airlines
Deal found 10/27$600
This Delta deal was found by Cheapflights users on 10/27. 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 10/303:48 pmTRI - SEA
1 stop7h 57mDelta
Sun 11/211:10 pmSEA - TRI
1 stop7h 12mDelta
Deal found 10/27$635
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Thu 10/305:25 pmTRI - SEA
1 stop7h 55mAmerican Airlines
Sat 11/112:59 amSEA - TRI
2 stops11h 15mAmerican Airlines
Deal found 10/27$640
This American Airlines deal was found by Cheapflights users on 10/28. 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 11/76:08 amTRI - SEA
1 stop8h 32mAmerican Airlines
Sun 11/910:35 amSEA - TRI
1 stop9h 22mAmerican Airlines
Deal found 10/28$655

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 October 29, 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

Tue 11/25

12:50 pm-5:44 pm

1 stop7h 54m

Seattle/Tacoma Intl

Tue 12/2

11:00 pm-9:31 am

1 stop7h 31m

$517

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Tue 11/25

7:00 am-2:59 pm

1 stop10h 59m

Seattle/Tacoma Intl

Tue 12/2

9:46 am-10:57 pm

2 stops10h 11m

$522

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Tue 11/11

3:34 pm-8:39 pm

1 stop8h 05m

Seattle/Tacoma Intl

Sat 11/15

10:07 pm-8:17 am

1 stop7h 10m

$555

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Tue 3/10

11:15 am-11:08 pm

2 stops14h 53m

Seattle/Tacoma Intl

Wed 3/11

7:00 am-11:41 pm

2 stops13h 41m

$716

BlountvilleSeattle

TRI - SEA

TRISEA

Blountville Tri Cities TN/VA

Tue 3/10

6:05 am-6:49 pm

2 stops15h 44m

Seattle/Tacoma Intl

Wed 3/11

9:30 pm-12:07 pm

1 stop11h 37m

$753

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 $249). Flying from Kingsport to Seattle in March is currently the most expensive (average of $438). 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 October 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Kingsport to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the morning.

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 evenings 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 October 29, 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
7.9
Good
7,992 reviews

Overall

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Overall

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,992 reviews

Overall

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 54m. The time it takes to get you to your destination can typically vary by up to 3h 05m. 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 $249). Flying from Kingsport to Seattle in March is currently the most expensive (average of $438). 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
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$248Average$330FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$308Average$569FlexibilityNo cancel feeOn-time71%
DeltaCheapest$327Average$566FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$344Average$596FlexibilityNo cancel feeOn-time69%

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