$141+ Cheap flights from Kingsport, TN to St. Louis (STL)
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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — STL
May 19 — May 261
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kingsport to St. Louis
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Best
Last-minute
One-way
Cheapest flights from Kingsport to St. LouisExplore 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 April 19, 2026.
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 April 19, 2026.
This Delta deal was found by Cheapflights users on 4/15. 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 9/46:55 pm
TRI
- STL
1 stop5h 42m
Delta
Sun 9/66:00 am
STL
- TRI
1 stop5h 06m
Delta
Deal found 4/15![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 4/15. 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 9/511:06 am
TRI
- STL
2 stops8h 04m
American Airlines
Sun 9/66:25 pm
STL
- TRI
1 stop4h 31m
American Airlines
Deal found 4/15![American Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 4/15. 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 9/45:23 pm
TRI
- STL
1 stop7h 19m
American Airlines
Sun 9/66:06 am
STL
- TRI
2 stops7h 25m
American Airlines
Deal found 4/15![American Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:02 pm
TRI
- STL
1 stop7h 55m
Multiple Airlines
Fri 6/59:06 pm
STL
- TRI
2 stops40h 20m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 4/19. 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 11/125:04 am
TRI
- STL
1 stop4h 23m
American Airlines
Sun 11/156:07 am
STL
- TRI
2 stops7h 07m
American Airlines
Deal found 4/19![American Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 4/17. 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.
Sat 5/21:54 pm
TRI
- STL
1 stop6h 17m
Delta
Wed 5/67:25 am
STL
- TRI
1 stop4h 38m
Delta
Deal found 4/17![Delta logo]()
$447
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/25:05 am
TRI
- STL
2 stops7h 42m
American Airlines
Wed 5/62:12 pm
STL
- TRI
1 stop6h 45m
American Airlines
Deal found 4/17![American Airlines logo]()
$452
This American Airlines deal was found by Cheapflights users on 4/15. 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 6/15:15 am
TRI
- STL
1 stop4h 18m
American Airlines
Fri 6/55:00 pm
STL
- TRI
1 stop6h 13m
American Airlines
Deal found 4/15![American Airlines logo]()
$535
This American Airlines deal was found by Cheapflights users on 4/14. 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 4/162:56 pm
TRI
- STL
1 stop4h 08m
American Airlines
Tue 4/213:38 pm
STL
- TRI
1 stop6h 08m
American Airlines
Deal found 4/14![American Airlines logo]()
$547
Best flights from Kingsport to St. LouisDiscover carefully curated flight deals from Kingsport to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 19, 2026.
Discover carefully curated flight deals from Kingsport to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 19, 2026.
This Delta deal was found by Cheapflights users on 4/15. 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 9/46:55 pm
TRI
- STL
1 stop5h 42m
Delta
Sun 9/66:00 am
STL
- TRI
1 stop5h 06m
Delta
Deal found 4/15![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 4/15. 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 9/511:06 am
TRI
- STL
2 stops8h 04m
American Airlines
Sun 9/66:25 pm
STL
- TRI
1 stop4h 31m
American Airlines
Deal found 4/15![American Airlines logo]()
$364
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:46 pm
TRI
- STL
1 stop17h 48m
United Airlines
Wed 9/28:30 pm
STL
- TRI
1 stop12h 50m
United Airlines
Deal found 4/17![United Airlines logo]()
$575
This Delta deal was found by Cheapflights users on 4/15. 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.
Sat 9/53:50 pm
TRI
- STL
1 stop6h 00m
Delta
Sun 9/66:00 am
STL
- TRI
1 stop5h 06m
Delta
Deal found 4/15![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/25:05 am
TRI
- STL
2 stops7h 42m
American Airlines
Wed 5/62:12 pm
STL
- TRI
1 stop6h 45m
American Airlines
Deal found 4/17![American Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 4/17. 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.
Sat 5/21:54 pm
TRI
- STL
1 stop6h 17m
Delta
Wed 5/67:25 am
STL
- TRI
1 stop4h 38m
Delta
Deal found 4/17![Delta logo]()
$447
This American Airlines deal was found by Cheapflights users on 4/15. 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 6/15:15 am
TRI
- STL
1 stop4h 18m
American Airlines
Fri 6/55:00 pm
STL
- TRI
1 stop6h 13m
American Airlines
Deal found 4/15![American Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 4/17. 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 4/307:19 pm
TRI
- STL
1 stop5h 17m
Delta
Thu 5/77:05 am
STL
- TRI
1 stop4h 50m
Delta
Deal found 4/17![Delta logo]()
$578
This American Airlines deal was found by Cheapflights users on 4/17. 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 4/307:45 am
TRI
- STL
1 stop6h 37m
American Airlines
Thu 5/72:12 pm
STL
- TRI
1 stop4h 47m
American Airlines
Deal found 4/17![American Airlines logo]()
$666
Last-minute flights from Kingsport to St. LouisDiscover last-minute flight deals from Kingsport to St. Louis. Data last updated April 19, 2026 and is based on user searches.
Discover last-minute flight deals from Kingsport to St. Louis. Data last updated April 19, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/14. 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 4/162:56 pm
TRI
- STL
1 stop4h 08m
American Airlines
Tue 4/213:38 pm
STL
- TRI
1 stop6h 08m
American Airlines
Deal found 4/14![American Airlines logo]()
$547
This Delta deal was found by Cheapflights users on 4/17. 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 4/307:19 pm
TRI
- STL
1 stop5h 17m
Delta
Thu 5/77:05 am
STL
- TRI
1 stop4h 50m
Delta
Deal found 4/17![Delta logo]()
$578
This American Airlines deal was found by Cheapflights users on 4/17. 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 4/307:45 am
TRI
- STL
1 stop6h 37m
American Airlines
Thu 5/72:12 pm
STL
- TRI
1 stop4h 47m
American Airlines
Deal found 4/17![American Airlines logo]()
$666
This Delta deal was found by Cheapflights users on 4/17. 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.
Sat 5/21:54 pm
TRI
- STL
1 stop6h 17m
Delta
Wed 5/67:25 am
STL
- TRI
1 stop4h 38m
Delta
Deal found 4/17![Delta logo]()
$447
This American Airlines deal was found by Cheapflights users on 4/17. 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 5/25:05 am
TRI
- STL
2 stops7h 42m
American Airlines
Wed 5/62:12 pm
STL
- TRI
1 stop6h 45m
American Airlines
Deal found 4/17![American Airlines logo]()
$452
One-way flights from Kingsport to St. LouisSearch for one-way flight options from Kingsport to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
Search for one-way flight options from Kingsport to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:02 pm
TRI
- STL
2 stops26h 02m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/185:02 pm
TRI
- STL
2 stops25h 31m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:28 pm
TRI
- STL
3 stops22h 08m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:28 pm
TRI
- STL
3 stops22h 08m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$223
This Delta deal was found by Cheapflights users on 4/18. 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.
Tue 5/193:50 pm
TRI
- STL
1 stop6h 48m
Delta
Deal found 4/18![Delta logo]()
$268
This Delta deal was found by Cheapflights users on 4/18. 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.
Sat 5/1610:11 am
TRI
- STL
1 stop5h 40m
Delta
Deal found 4/18![Delta logo]()
$288
This American Airlines deal was found by Cheapflights users on 4/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/192:55 pm
TRI
- STL
2 stops10h 01m
American Airlines
Deal found 4/18![American Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 4/17. 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 5/76:00 am
TRI
- STL
1 stop4h 44m
Delta
Deal found 4/17![Delta logo]()
$318
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 April 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Delta) |
One-way from | $141 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $556 |
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 April 19, 2026.
Use the filters below to find and compare flights from Kingsport to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Fri 9/4
6:55 pm-11:37 pm
1 stop5h 42m
Lambert-St Louis
Sun 9/6
6:00 am-12:06 pm
1 stop5h 06m
$359
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sat 9/5
3:50 pm-8:50 pm
1 stop6h 00m
Lambert-St Louis
Sun 9/6
6:00 am-12:06 pm
1 stop5h 06m
$359
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sat 9/5
11:06 am-6:10 pm
2 stops8h 04m
Lambert-St Louis
Sun 9/6
6:25 pm-11:56 pm
1 stop4h 31m
$364
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sat 5/2
1:54 pm-7:11 pm
1 stop6h 17m
Lambert-St Louis
Wed 5/6
7:25 am-1:03 pm
1 stop4h 38m
$447
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sat 5/2
5:05 am-11:47 am
2 stops7h 42m
Lambert-St Louis
Wed 5/6
2:12 pm-9:57 pm
1 stop6h 45m
$452
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Mon 6/1
5:15 am-8:33 am
1 stop4h 18m
Lambert-St Louis
Fri 6/5
5:00 pm-12:13 am
1 stop6h 13m
$535
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sat 8/29
5:46 pm-10:34 am
1 stop17h 48m
Lambert-St Louis
Wed 9/2
8:30 pm-10:20 am
1 stop12h 50m
$575
Quickest round-trip
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 4/30
7:19 pm-11:36 pm
1 stop5h 17m
Lambert-St Louis
Thu 5/7
7:05 am-12:55 pm
1 stop4h 50m
$578
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 4/30
7:45 am-1:22 pm
1 stop6h 37m
Lambert-St Louis
Thu 5/7
2:12 pm-7:59 pm
1 stop4h 47m
$666
Cheapest one-way
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 5/7
9:28 pm-6:36 pm
3 stops22h 08m
$223
Showing 1-10 of 18 resultsSorted by cheapest first
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.
TRI-STL
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
K1N-STL
TRI-STL
No data available for this route at this time. Please check back soon.
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 April 19, 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.
Overall
7.9
Comfort
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Comfort
7.9
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Kingsport and St. Louis flights
Browse other Kingsport and St. Louis flight options. Last updated on April 19, 2026.
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 19, 2026.
Kingsport to St. Louis flights
Consider these flights traveling from Kingsport to St. Louis.
Top 3 airlines flying from Kingsport to St. Louis
Discover the top 3 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 April 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$360 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$308 | FlexibilityNo cancel fee | On-time69% |