$64+ Cheap flights from St. Louis (STL) to Houston
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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — HOU
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Houston 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.Cheapflights Tip: The best prices from Lambert-St Louis to Houston are usually found in September or October, booked 54 days in advance, depart on a Tuesday or Friday and return on a Wednesday
Cheap flight deals from St. Louis to Houston
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Best
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One-way
Cheapest flights from St. Louis to HoustonExplore the most affordable flight options available from St. Louis to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from St. Louis to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:17 pm -
1 stop13h 03m
Thu 8/2711:32 am -
1 stop5h 50m
Deal found 8/5![Frontier logo]()
$175
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:15 am -
Nonstop2h 00m
Sun 9/66:15 pm -
Nonstop2h 00m
Deal found 8/6![Southwest logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Sat 10/2410:35 am -
1 stop11h 31m
Thu 10/297:00 am -
2 stops10h 54m
Deal found 8/6![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/66:17 pm -
1 stop13h 03m
Sun 9/139:04 pm -
1 stop16h 06m
Deal found 8/6![Frontier logo]()
$218
This CheapOair deal was found by Cheapflights users on 8/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:58 pm -
1 stop14h 36m
Sat 9/51:45 pm -
1 stop26h 26m
Deal found 8/5![Frontier logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/276:17 pm -
2 stops16h 47m
Sun 8/3011:32 am -
1 stop5h 50m
Deal found 8/6![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:20 am -
2 stops11h 20m
Fri 10/26:08 am -
1 stop7h 02m
Deal found 8/5![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:17 pm -
1 stop13h 03m
Fri 9/116:08 am -
1 stop7h 02m
Deal found 8/9![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:29 pm -
2 stops24h 48m
Sat 10/310:30 am -
1 stop8h 47m
Deal found 8/5![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 10/1610:35 am -
1 stop28h 30m
Mon 10/197:00 am -
2 stops12h 39m
Deal found 8/8![Frontier logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/2410:20 am -
2 stops28h 30m
Sun 9/279:04 pm -
1 stop16h 06m
Deal found 8/6![Frontier logo]()
$228
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:15 pm -
Nonstop2h 00m
Mon 9/217:50 pm -
Nonstop2h 05m
Deal found 8/9![Southwest logo]()
$236
Best flights from St. Louis to HoustonDiscover carefully curated flight deals from St. Louis to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from St. Louis to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:15 am -
Nonstop2h 00m
Sun 9/66:15 pm -
Nonstop2h 00m
Deal found 8/6![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 8/6. 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 8/2711:00 am -
1 stop5h 25m
Sat 8/295:20 pm -
1 stop6h 11m
Deal found 8/6![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/138:35 am -
Nonstop2h 17m
Tue 10/2011:58 am -
Nonstop2h 12m
Deal found 8/7![United Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:45 am -
1 stop4h 50m
Mon 9/217:20 am -
Nonstop2h 00m
Deal found 8/9![Southwest logo]()
$246
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:15 pm -
Nonstop2h 00m
Tue 9/2211:20 am -
2 stops5h 05m
Deal found 8/9![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/32:45 pm -
Nonstop2h 00m
Sun 9/66:15 pm -
Nonstop2h 00m
Deal found 8/9![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:20 am -
Nonstop2h 05m
Sat 10/242:45 pm -
Nonstop2h 00m
Deal found 8/7![Southwest logo]()
$255
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 9/246:15 am -
Nonstop2h 12m
Sun 9/276:15 am -
1 stop6h 00m
Deal found 8/6![United Airlines logo]()
$361
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:25 am -
1 stop4h 20m
Tue 10/2711:30 am -
Nonstop2h 00m
Deal found 8/6![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 8/6. 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 8/256:00 am -
1 stop5h 15m
Sat 8/297:00 am -
1 stop4h 56m
Deal found 8/6![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:15 am -
Nonstop2h 12m
Sat 10/243:00 pm -
1 stop5h 36m
Deal found 8/7![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am -
1 stop7h 27m
Tue 9/112:12 pm -
1 stop6h 15m
Deal found 8/7![Delta logo]()
$394
This Southwest deal was found by Cheapflights users on 8/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:15 am -
Nonstop2h 00m
Fri 10/98:25 pm -
Nonstop2h 00m
Deal found 8/8![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 8/6. 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 8/2512:52 pm -
1 stop7h 02m
Thu 8/277:00 am -
1 stop4h 46m
Deal found 8/6![Delta logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:15 am -
Nonstop2h 17m
Mon 9/218:15 pm -
Nonstop2h 15m
Deal found 8/9![United Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:20 am -
Nonstop2h 00m
Mon 9/75:30 am -
Nonstop2h 00m
Deal found 8/9![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:13 pm -
Nonstop2h 12m
Sun 8/308:15 pm -
Nonstop2h 12m
Deal found 8/9![United Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 8/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:36 pm -
1 stop5h 09m
Mon 9/288:15 pm -
Nonstop2h 15m
Deal found 8/7![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 8/6. 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 10/243:12 pm -
Nonstop2h 13m
Sun 10/259:37 am -
1 stop6h 54m
Deal found 8/6![United Airlines logo]()
$441
Last-minute flights from St. Louis to HoustonDiscover last-minute flight deals from St. Louis to Houston. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Houston. Data last updated August 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:17 pm -
1 stop13h 03m
Thu 8/2711:32 am -
1 stop5h 50m
Deal found 8/5![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Tue 8/255:27 pm -
2 stops25h 41m
Fri 8/286:00 am -
1 stop11h 22m
Deal found 8/6![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/276:17 pm -
2 stops16h 47m
Sun 8/3011:32 am -
1 stop5h 50m
Deal found 8/6![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/276:17 pm -
1 stop13h 03m
Fri 8/284:32 pm -
2 stops23h 39m
Deal found 8/6![Frontier logo]()
$231
This CheapOair deal was found by Cheapflights users on 8/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:58 pm -
1 stop14h 36m
Sat 9/51:45 pm -
1 stop26h 26m
Deal found 8/5![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 8/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:15 am -
Nonstop2h 00m
Sun 9/66:15 pm -
Nonstop2h 00m
Deal found 8/6![Southwest logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/66:17 pm -
1 stop13h 03m
Sun 9/139:04 pm -
1 stop16h 06m
Deal found 8/6![Frontier logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:17 pm -
1 stop13h 03m
Fri 9/116:08 am -
1 stop7h 02m
Deal found 8/9![Frontier logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Wed 9/162:29 pm -
2 stops18h 57m
Mon 9/216:08 am -
1 stop7h 02m
Deal found 8/6![Frontier logo]()
$217
This Southwest deal was found by Cheapflights users on 8/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:15 pm -
Nonstop2h 00m
Mon 9/217:50 pm -
Nonstop2h 05m
Deal found 8/9![Southwest logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/2410:20 am -
2 stops28h 30m
Sun 9/279:04 pm -
1 stop16h 06m
Deal found 8/6![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:29 pm -
2 stops24h 48m
Sat 10/310:30 am -
1 stop8h 47m
Deal found 8/5![Frontier logo]()
$226
One-way flights from St. Louis to HoustonSearch for one-way flight options from St. Louis to Houston. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from St. Louis to Houston. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Trip.com deal was found by Cheapflights users on 8/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:17 pm -
1 stop13h 03m
Deal found 8/7![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:29 pm -
1 stop16h 48m
Deal found 8/9![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/46:17 pm -
1 stop27h 57m
Deal found 8/6![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 10/910:35 am -
1 stop28h 30m
Deal found 8/7![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 8/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/510:35 am -
1 stop11h 35m
Deal found 8/6![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Thu 10/810:35 am -
1 stop20h 54m
Deal found 8/7![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Wed 10/72:29 pm -
1 stop8h 01m
Deal found 8/7![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 8/10. 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.
Sat 11/710:35 am -
1 stop11h 35m
Deal found 8/10![Frontier logo]()
$84
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:20 am -
Nonstop2h 00m
Deal found 8/7![Southwest logo]()
$109
This KAYAK deal was found by Cheapflights users on 8/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:15 am -
1 stop9h 25m
Deal found 8/5![Southwest logo]()
$117
This Delta deal was found by Cheapflights users on 8/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:44 pm -
1 stop5h 39m
Deal found 8/7![Delta logo]()
$119
This Southwest deal was found by Cheapflights users on 8/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:20 pm -
Nonstop2h 00m
Deal found 8/5![Southwest logo]()
$128
Find flight deals from St. Louis to Houston
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 10, 2026.
Round-trip from | $129 (Kiwi.com) |
|---|---|
One-way from | $64 (Trip.com) |
Popular in | July |
Cheapest in | September |
Average price | $359 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Houston 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 August 10, 2026.
Use the filters below to find and compare flights from St. Louis to Houston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Sat 9/5
5:15 am-7:15 am
Nonstop2h 00m
Houston Hobby
Sun 9/6
6:15 pm-8:15 pm
Nonstop2h 00m
$217
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Thu 9/17
5:45 am-10:35 am
1 stop4h 50m
Houston Hobby
Mon 9/21
7:20 am-9:20 am
Nonstop2h 00m
$246
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Thu 9/17
12:15 pm-2:15 pm
Nonstop2h 00m
Houston Hobby
Tue 9/22
11:20 am-4:25 pm
2 stops5h 05m
$251
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Thu 9/3
2:45 pm-4:45 pm
Nonstop2h 00m
Houston Hobby
Sun 9/6
6:15 pm-8:15 pm
Nonstop2h 00m
$252
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Sat 10/24
5:20 am-7:25 am
Nonstop2h 05m
Houston Hobby
Sat 10/24
2:45 pm-4:45 pm
Nonstop2h 00m
$255
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Thu 10/22
5:25 am-9:45 am
1 stop4h 20m
Houston Hobby
Tue 10/27
11:30 am-1:30 pm
Nonstop2h 00m
$261
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Thu 8/27
11:00 am-4:25 pm
1 stop5h 25m
Houston Hobby
Sat 8/29
5:20 pm-11:31 pm
1 stop6h 11m
$275
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Fri 9/25
5:15 am-7:15 am
Nonstop2h 00m
Houston Hobby
Fri 10/9
8:25 pm-10:25 pm
Nonstop2h 00m
$287
St. LouisHouston
STL Lambert-St Louis - HOU Houston Hobby
STLHOU
Lambert-St Louis
Fri 9/4
7:20 am-9:20 am
Nonstop2h 00m
Houston Hobby
Mon 9/7
5:30 am-7:30 am
Nonstop2h 00m
$287
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Tue 10/13
8:35 am-10:52 am
Nonstop2h 17m
Houston George Bush Intcntl
Tue 10/20
11:58 am-2:10 pm
Nonstop2h 12m
$335
Showing 1-10 of 41 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Houston
Have a flexible travel schedule? Discover the best time to fly to Houston from St. Louis with our price prediction graph.
STL-HO1
STL-IAH
STL-HOU
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 St. Louis to Houston
STL-HO1
STL-IAH
STL-HOU
What is the cheapest month to book a flight from St. Louis to Houston?
Currently, September is the cheapest month in which you can book a flight from St. Louis to Houston (average of $311). Flying from St. Louis to Houston in February is currently the most expensive (average of $452). 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 STL to HOU?
Find hourly flight availability from St. Louis to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 10, 2026.
A simple way to save on the total cost of your ticket is to fly from St. Louis to Houston in the evening. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.
How much does it cost to fly round-trip from St. Louis to Houston?
Airfare is below average for this route at the moment.
St. Louis to Houston flights typically cost between $277 and $415 in September.The cheapest round-trip price found within the last 5 days was $217 on Southwest (Sep 5-Sep 6).
How far ahead should I book a flight from St. Louis to Houston?
To ensure you get the cheapest price possible for a flight from St. Louis to Houston, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from St. Louis to Houston?
Use this chart to determine the cheapest time to fly round-trip from St. Louis to Houston. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their St. Louis to Houston flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for St. Louis to Houston flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Houston trip
Our travel experts
Reviews of airlines servicing Houston
Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated August 10, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from St. Louis to Houston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Houston
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Complete your trip
Complete your trip to Houston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Houston by cabin class
Find flights from St. Louis to Houston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Houston flights
Browse other St. Louis and Houston flight options. Last updated on August 10, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from St. Louis to Houston
Discover the top 5 airlines that operate flights from St. Louis to Houston. 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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$231 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$131 | Average$404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$158 | Average$449 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$269 | Average$404 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$275 | Average$397 | FlexibilityNo cancel fee | On-time63% |