$259+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — STL
Jul 12 — Jul 191
Round-trip
1 adult, Economy
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Find cheap flights from Kingsport to St. Louis with Cheapflights
1. Tell us where you want to go
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 June 12, 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 June 12, 2026.
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/77:22 pm
TRI
- STL
1 stop4h 18m
American Airlines
Mon 8/106:54 am
STL
- TRI
1 stop4h 04m
American Airlines
Deal found 6/11![American Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 6/9. 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 7/306:00 am
TRI
- STL
1 stop4h 43m
Delta
Mon 8/37:00 am
STL
- TRI
1 stop5h 01m
Delta
Deal found 6/9![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 6/10. 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 6/196:14 pm
TRI
- STL
1 stop6h 30m
American Airlines
Sun 6/285:14 am
STL
- TRI
1 stop4h 28m
American Airlines
Deal found 6/10![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/305:00 am
TRI
- STL
1 stop4h 33m
American Airlines
Sun 8/25:58 pm
STL
- TRI
1 stop5h 17m
American Airlines
Deal found 6/9![American Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 6/10. 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 6/188:27 pm
TRI
- STL
1 stop4h 17m
American Airlines
Sat 6/205:14 am
STL
- TRI
1 stop4h 28m
American Airlines
Deal found 6/10![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 6/11. 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 6/135:23 pm
TRI
- STL
1 stop5h 17m
American Airlines
Sun 6/149:25 am
STL
- TRI
1 stop5h 22m
American Airlines
Deal found 6/11![American Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 6/9. 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 7/307:55 pm
TRI
- STL
1 stop4h 58m
Delta
Fri 7/316:58 pm
STL
- TRI
1 stop16h 58m
Delta
Deal found 6/9![Delta logo]()
$449
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/305:00 am
TRI
- STL
1 stop4h 33m
American Airlines
Sat 8/16:14 am
STL
- TRI
2 stops8h 30m
American Airlines
Deal found 6/9![American Airlines logo]()
$492
This American Airlines deal was found by Cheapflights users on 6/7. 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 6/107:00 am
TRI
- STL
2 stops8h 02m
American Airlines
Wed 6/175:14 am
STL
- TRI
1 stop4h 28m
American Airlines
Deal found 6/7![American Airlines logo]()
$527
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 June 12, 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 June 12, 2026.
This Delta deal was found by Cheapflights users on 6/12. 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 8/146:00 am
TRI
- STL
1 stop4h 54m
Delta
Mon 8/179:15 am
STL
- TRI
1 stop4h 42m
Delta
Deal found 6/12![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/77:22 pm
TRI
- STL
1 stop4h 18m
American Airlines
Mon 8/106:54 am
STL
- TRI
1 stop4h 04m
American Airlines
Deal found 6/11![American Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 6/9. 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 7/306:00 am
TRI
- STL
1 stop4h 43m
Delta
Wed 8/55:23 pm
STL
- TRI
1 stop4h 00m
Delta
Deal found 6/9![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 6/9. 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 7/306:00 am
TRI
- STL
1 stop4h 43m
Delta
Mon 8/35:23 pm
STL
- TRI
1 stop4h 00m
Delta
Deal found 6/9![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 6/9. 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 7/306:00 am
TRI
- STL
1 stop4h 43m
Delta
Sat 8/11:15 pm
STL
- TRI
1 stop19h 20m
Delta
Deal found 6/9![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 6/9. 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 7/307:55 pm
TRI
- STL
1 stop4h 58m
Delta
Fri 7/316:58 pm
STL
- TRI
1 stop16h 58m
Delta
Deal found 6/9![Delta logo]()
$449
Last-minute flights from Kingsport to St. LouisDiscover last-minute flight deals from Kingsport to St. Louis. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Kingsport to St. Louis. Data last updated June 12, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/11. 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 6/135:23 pm
TRI
- STL
1 stop5h 17m
American Airlines
Sun 6/149:25 am
STL
- TRI
1 stop5h 22m
American Airlines
Deal found 6/11![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 6/10. 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 6/188:27 pm
TRI
- STL
1 stop4h 17m
American Airlines
Sat 6/205:14 am
STL
- TRI
1 stop4h 28m
American Airlines
Deal found 6/10![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 6/10. 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 6/196:14 pm
TRI
- STL
1 stop6h 30m
American Airlines
Sun 6/285:14 am
STL
- TRI
1 stop4h 28m
American Airlines
Deal found 6/10![American Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 6/193:00 pm
TRI
- STL
2 stops28h 53m
Multiple Airlines
Sun 6/284:17 pm
STL
- TRI
1 stop20h 53m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$554
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:53 pm
TRI
- STL
1 stop5h 03m
Delta
Fri 7/106:09 pm
STL
- TRI
2 stops14h 26m
Delta
Deal found 6/10![Delta logo]()
$547
This Delta deal was found by Cheapflights users on 6/9. 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 7/306:00 am
TRI
- STL
1 stop4h 43m
Delta
Wed 8/57:00 am
STL
- TRI
1 stop5h 01m
Delta
Deal found 6/9![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/305:00 am
TRI
- STL
1 stop4h 33m
American Airlines
Sun 8/25:58 pm
STL
- TRI
1 stop5h 17m
American Airlines
Deal found 6/9![American Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 6/9. 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 7/306:00 am
TRI
- STL
1 stop4h 43m
Delta
Sat 8/11:15 pm
STL
- TRI
1 stop19h 20m
Delta
Deal found 6/9![Delta logo]()
$449
This Delta deal was found by Cheapflights users on 6/9. 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 7/307:55 pm
TRI
- STL
2 stops18h 10m
Delta
Mon 8/37:00 am
STL
- TRI
1 stop5h 01m
Delta
Deal found 6/9![Delta logo]()
$469
This American Airlines deal was found by Cheapflights users on 6/9. 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 7/305:00 am
TRI
- STL
1 stop4h 33m
American Airlines
Sat 8/16:14 am
STL
- TRI
2 stops8h 30m
American Airlines
Deal found 6/9![American Airlines logo]()
$492
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 June 12, 2026.
Search for one-way flight options from Kingsport to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Delta deal was found by Cheapflights users on 6/12. 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.
Sun 7/57:53 pm
TRI
- STL
1 stop5h 03m
Delta
Deal found 6/12![Delta logo]()
$259
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Sun 7/58:26 pm
TRI
- STL
1 stop4h 31m
American Airlines
Deal found 6/9![American Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/93:27 pm
TRI
- STL
3 stops48h 29m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$277
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 June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $289 (American Airlines) |
One-way from | $259 (Delta) |
Popular in | May |
Cheapest in | January |
Average price | $410 |
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 June 12, 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 8/14
6:00 am-9:54 am
1 stop4h 54m
Lambert-St Louis
Mon 8/17
9:15 am-2:57 pm
1 stop4h 42m
$289
Quickest round-trip
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Fri 8/7
7:22 pm-10:40 pm
1 stop4h 18m
Lambert-St Louis
Mon 8/10
6:54 am-11:58 am
1 stop4h 04m
$289
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 7/30
6:00 am-9:43 am
1 stop4h 43m
Lambert-St Louis
Wed 8/5
5:23 pm-10:23 pm
1 stop4h 00m
$299
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 7/30
6:00 am-9:43 am
1 stop4h 43m
Lambert-St Louis
Mon 8/3
5:23 pm-10:23 pm
1 stop4h 00m
$299
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 7/30
6:00 am-9:43 am
1 stop4h 43m
Lambert-St Louis
Sat 8/1
1:15 pm-9:35 am
1 stop19h 20m
$449
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Thu 7/30
7:55 pm-11:53 pm
1 stop4h 58m
Lambert-St Louis
Fri 7/31
6:58 pm-12:56 pm
1 stop16h 58m
$449
Cheapest one-way
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sun 7/5
7:53 pm-11:56 pm
1 stop5h 03m
$259
Quickest one-way
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sun 7/5
5:00 am-8:33 am
1 stop4h 33m
$259
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sun 8/9
3:27 pm-2:56 pm
3 stops48h 29m
$277
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Sun 8/9
5:07 am-12:54 pm
2 stops8h 47m
$403
Sorted 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
How much does it cost to fly round-trip from Kingsport to St. Louis?
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 June 12, 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.
Food
7.2
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
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Kingsport and St. Louis flights
Browse other Kingsport and St. Louis flight options. Last updated on June 12, 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 June 12, 2026.
Kingsport to St. Louis flights
Consider these flights traveling from Kingsport to St. Louis.
Top 4 airlines flying from Kingsport to St. Louis
Discover the top 4 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 June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$322 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$366 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$337 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$248 | Average$308 | FlexibilityNo cancel fee | On-time69% |