$150+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — STL
Oct 7 — Oct 141
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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 11/125:16 am -
1 stop3h 51m
Sun 11/155:29 pm -
1 stop5h 17m
Deal found 9/3![American Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/184:57 pm -
1 stop6h 45m
Tue 9/221:54 pm -
1 stop3h 40m
Deal found 9/3![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/5. 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 11/266:00 am -
1 stop5h 20m
Mon 11/3010:00 am -
1 stop3h 55m
Deal found 9/5![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/46:00 am -
1 stop4h 32m
Mon 9/76:54 am -
1 stop4h 04m
Deal found 9/2![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 9/5. 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 11/267:00 am -
2 stops10h 34m
Mon 11/304:25 pm -
1 stop6h 30m
Deal found 9/5![American Airlines logo]()
$513
This American Airlines deal was found by Cheapflights users on 9/5. 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 9/208:29 pm -
1 stop4h 12m
Thu 9/241:54 pm -
1 stop3h 40m
Deal found 9/5![American Airlines logo]()
$645
This American Airlines deal was found by Cheapflights users on 9/4. 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 11/255:00 am -
1 stop4h 13m
Sun 11/298:47 am -
1 stop6h 07m
Deal found 9/4![American Airlines logo]()
$840
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 September 7, 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 September 7, 2026.
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/125:16 am -
1 stop3h 51m
Sun 11/155:29 pm -
1 stop5h 17m
Deal found 9/7![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/5. 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 11/266:00 am -
1 stop5h 20m
Mon 11/3010:00 am -
1 stop3h 55m
Deal found 9/5![Delta logo]()
$339
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/184:57 pm -
1 stop6h 45m
Tue 9/221:54 pm -
1 stop3h 40m
Deal found 9/3![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/4. 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 9/1910:36 am -
2 stops7h 12m
Wed 9/238:43 am -
1 stop5h 21m
Deal found 9/4![American Airlines logo]()
$512
This American Airlines deal was found by Cheapflights users on 9/5. 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 11/267:00 am -
2 stops10h 34m
Mon 11/304:25 pm -
1 stop6h 30m
Deal found 9/5![American Airlines logo]()
$513
Last-minute flights from Kingsport to St. LouisDiscover last-minute flight deals from Kingsport to St. Louis. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Kingsport to St. Louis. Data last updated September 7, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/46:00 am -
1 stop4h 32m
Mon 9/76:54 am -
1 stop4h 04m
Deal found 9/2![American Airlines logo]()
$389
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/184:57 pm -
1 stop6h 45m
Tue 9/221:54 pm -
1 stop3h 40m
Deal found 9/3![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/5. 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 9/208:29 pm -
1 stop4h 12m
Thu 9/241:54 pm -
1 stop3h 40m
Deal found 9/5![American Airlines logo]()
$645
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 September 7, 2026.
Search for one-way flight options from Kingsport to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:21 pm -
2 stops24h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:41 pm -
3 stops45h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$231
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/88:26 pm -
1 stop4h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$264
This American Airlines deal was found by Cheapflights users on 9/7. 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 9/167:21 pm -
1 stop4h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/74:04 pm -
2 stops9h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$405
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $299 (American Airlines) |
One-way from | $150 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $746 |
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 7,457,451 searches. Data last updated September 7, 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 Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Mon 10/12
8:41 pm-5:40 pm
3 stops45h 59m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$231
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Thu 10/8
8:26 pm-11:59 pm
1 stop4h 33m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Mon 10/12
5:07 am-8:37 am
1 stop4h 30m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Wed 10/7
5:22 pm-11:42 pm
1 stop7h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Thu 10/8
6:21 pm-6:57 pm
3 stops49h 36m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$295
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Thu 11/12
5:16 am-8:07 am
1 stop3h 51m
Lambert-St Louis
Sun 11/15
5:29 pm-11:46 pm
1 stop5h 17m
$299
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Fri 9/18
4:57 pm-10:42 pm
1 stop6h 45m
Lambert-St Louis
Tue 9/22
1:54 pm-6:34 pm
1 stop3h 40m
$329
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Thu 11/26
6:00 am-10:20 am
1 stop5h 20m
Lambert-St Louis
Mon 11/30
10:00 am-2:55 pm
1 stop3h 55m
$339
Quickest round-trip
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Wed 9/16
7:21 pm-10:42 pm
1 stop4h 21m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$374
BlountvilleSt. Louis
TRI Blountville Tri Cities TN/VA - STL Lambert-St Louis
TRISTL
Blountville Tri Cities TN/VA
Sat 9/19
10:36 am-4:48 pm
2 stops7h 12m
Lambert-St Louis
Wed 9/23
8:43 am-3:04 pm
1 stop5h 21m
$512
Showing 1-10 of 11 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 September 7, 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.
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - 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
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
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Complete your trip
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Kingsport and St. Louis flights
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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 September 7, 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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$336 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$386 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$337 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$248 | Average$308 | FlexibilityNo cancel fee | On-time69% |