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$269+ Cheap flights from Kingsport, TN to St. Louis (STL)

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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — STL
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Kingsport to St. Louis

Cheapest flights from Kingsport to St. Louis
Explore the most affordable flight options available from Kingsport to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 5/227:41 pm
TRI
-
STL
1 stop5h 18m
Delta
Sun 5/249:13 am
STL
-
TRI
1 stop5h 39m
Delta
Deal found 2/2$269
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/177:13 pm
TRI
-
STL
1 stop5h 23m
Delta
Sat 2/215:01 pm
STL
-
TRI
1 stop4h 21m
Delta
Deal found 2/1$279
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 2/176:05 am
TRI
-
STL
1 stop4h 35m
American Airlines
Sat 2/211:30 pm
STL
-
TRI
2 stops6h 59m
American Airlines
Deal found 2/1$284
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 5/218:17 pm
TRI
-
STL
1 stop4h 15m
American Airlines
Sun 5/2412:50 pm
STL
-
TRI
1 stop4h 00m
American Airlines
Deal found 2/1$354
This American Airlines deal was found by Cheapflights users on 2/2. 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 2/202:46 pm
TRI
-
STL
2 stops9h 06m
American Airlines
Sun 2/226:00 am
STL
-
TRI
2 stops7h 21m
American Airlines
Deal found 2/2$455
This Delta deal was found by Cheapflights users on 2/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:41 pm
TRI
-
STL
1 stop5h 18m
Delta
Sun 5/176:00 am
STL
-
TRI
1 stop5h 53m
Delta
Deal found 2/1$477
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 5/145:05 am
TRI
-
STL
2 stops7h 40m
American Airlines
Sun 5/176:54 pm
STL
-
TRI
1 stop4h 00m
American Airlines
Deal found 2/1$529

Find flight deals from Kingsport to St. Louis

Keep the following information in mind while searching for Kingsport to St. Louis flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Delta)

Popular in

March

Cheapest in

January

Average price

$438
Provider with most accurate pricing for Blountville Tri Cities TN/VA-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Blountville Tri Cities TN/VA-Lambert-St Louis flights.
Search Deals
From Kingsport to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kingsport to St. Louis 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 February 3, 2026.
Use the filters below to find and compare flights from Kingsport to St. Louis that are best for you.

Fly from

Kingsport

Fly to

St. Louis

Route

Depart

Return

Price

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Fri 5/22

7:41 pm-11:59 pm

1 stop5h 18m

Lambert-St Louis

Sun 5/24

9:13 am-3:52 pm

1 stop5h 39m

$269

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Fri 2/20

2:46 pm-6:07 pm

1 stop4h 21m

Lambert-St Louis

Sun 2/22

6:57 pm-11:47 pm

1 stop3h 50m

$279

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Tue 2/17

7:13 pm-11:36 pm

1 stop5h 23m

Lambert-St Louis

Sat 2/21

5:01 pm-10:22 pm

1 stop4h 21m

$279

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Tue 2/17

6:05 am-9:40 am

1 stop4h 35m

Lambert-St Louis

Sat 2/21

1:30 pm-9:29 pm

2 stops6h 59m

$284

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Fri 5/22

8:17 pm-11:32 pm

1 stop4h 15m

Lambert-St Louis

Sun 5/24

6:12 pm-11:57 pm

1 stop4h 45m

$354

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Thu 5/21

8:17 pm-11:32 pm

1 stop4h 15m

Lambert-St Louis

Sun 5/24

12:50 pm-5:50 pm

1 stop4h 00m

$354

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Thu 5/14

7:41 pm-11:59 pm

1 stop5h 18m

Lambert-St Louis

Sun 5/17

6:00 am-12:53 pm

1 stop5h 53m

$477

BlountvilleSt. Louis

TRI - STL

TRISTL

Blountville Tri Cities TN/VA

Thu 5/14

5:05 am-11:45 am

2 stops7h 40m

Lambert-St Louis

Sun 5/17

6:54 pm-11:54 pm

1 stop4h 00m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Best time to book a flight from Kingsport to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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 St. Louis

What is the cheapest month to book a flight from Kingsport to St. Louis?

Currently, January is the cheapest month in which you can book a flight from Kingsport to St. Louis (average of $152). Flying from Kingsport to St. Louis in December is currently the most expensive (average of $260). 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated February 3, 2026.
Read through reviews of airlines operating flights from Kingsport to St. Louis, such as Delta and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,138 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

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
8,138 reviews
Delta
7.9
Good
8,138 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

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
7.2
Good
11,216 reviews
Delta
7.9
Good
8,138 reviews

Comfort

7.9

Entertainment

7.8

Food

7.2

Overall

7.9

Crew

8.5

Boarding

8.1

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 St. Louis. 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 St. Louis from Kingsport?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Kingsport. Booking flights from Kingsport to Lambert-St Louis (STL) should be relatively easy as there are 0 daily inbound flights from Kingsport from 2 different airlines.

  • How long is the flight from Kingsport to St. Louis?

    For as low as $279, Delta can have you in St. Louis from Kingsport in 4h 21m. Kingsport and St. Louis are separated by a distance of 463 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Kingsport to St. Louis that include hotel bookings?

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

  • How can I find direct flights from Kingsport to St. Louis?

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

  • Can I find deals for business class flights from Kingsport to St. Louis?

    Yes. Cheapflights offers flight deals from Kingsport to St. Louis 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 St. Louis?

    Currently, January is the cheapest month in which you can book a flight from Kingsport to St. Louis (average of $152). Flying from Kingsport to St. Louis in December is currently the most expensive (average of $260). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Kingsport to St. Louis

Discover the top 2 airlines that operate flights from Kingsport to St. Louis. 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$152Average$331FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$162Average$349FlexibilityNo cancel feeOn-time71%

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