$177+ Cheap flights from San Francisco to St. Louis (SFO - 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — STL
Jul 16 — Jul 231
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco 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.Cheapflights Tip: The best prices from San Francisco to Lambert-St Louis are usually found in September or October, booked 47 days in advance, depart on a Thursday or Wednesday and return on a Friday
Cheap flight deals from San Francisco to St. Louis
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Best
Last-minute
One-way
Cheapest flights from San Francisco to St. LouisExplore the most affordable flight options available from San Francisco to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
Explore the most affordable flight options available from San Francisco to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:23 am
SFO
- STL
1 stop6h 47m
Multiple Airlines
Thu 9/1012:46 pm
STL
- SFO
1 stop12h 59m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$347
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
SFO
- STL
1 stop11h 23m
Frontier
Thu 7/163:41 pm
STL
- SFO
1 stop9h 18m
Frontier
Deal found 6/15![Frontier logo]()
$348
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:42 am
SFO
- STL
2 stops19h 58m
Frontier
Thu 9/1012:46 pm
STL
- SFO
1 stop12h 59m
Frontier
Deal found 6/12![Frontier logo]()
$349
This Travelocity deal was found by Cheapflights users on 6/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:39 pm
SFO
- STL
1 stop15h 27m
Frontier
Wed 7/297:03 pm
STL
- SFO
1 stop15h 45m
Frontier
Deal found 6/15![Frontier logo]()
$350
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:00 am
SFO
- STL
1 stop11h 15m
Frontier
Mon 9/148:10 pm
STL
- SFO
1 stop6h 05m
Frontier
Deal found 6/12![Frontier logo]()
$351
This Booking.com deal was found by Cheapflights users on 6/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:45 pm
SFO
- STL
1 stop20h 06m
Frontier
Mon 7/68:08 pm
STL
- SFO
1 stop16h 22m
Frontier
Deal found 6/15![Frontier logo]()
$352
This CheapOair deal was found by Cheapflights users on 6/13. 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.
Sat 10/246:22 am
SFO
- STL
1 stop16h 55m
Frontier
Sun 10/255:19 pm
STL
- SFO
1 stop17h 04m
Frontier
Deal found 6/13![Frontier logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Sun 7/1910:23 pm
SFO
- STL
2 stops41h 42m
Frontier
Fri 7/248:08 pm
STL
- SFO
1 stop6h 15m
Frontier
Deal found 6/15![Frontier logo]()
$355
This Frontier deal was found by Cheapflights users on 6/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:00 am
SFO
- STL
1 stop11h 23m
Frontier
Thu 7/233:41 pm
STL
- SFO
1 stop9h 18m
Frontier
Deal found 6/13![Frontier logo]()
$356
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:39 pm
SFO
- STL
1 stop19h 44m
Frontier
Sun 7/197:10 pm
STL
- SFO
1 stop15h 38m
Frontier
Deal found 6/11![Frontier logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Fri 7/37:07 pm
SFO
- STL
2 stops11h 45m
Frontier
Fri 7/317:10 pm
STL
- SFO
1 stop15h 38m
Frontier
Deal found 6/15![Frontier logo]()
$359
Best flights from San Francisco to St. LouisDiscover carefully curated flight deals from San Francisco to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
Discover carefully curated flight deals from San Francisco to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 am
SFO
- STL
1 stop8h 38m
United Airlines
Wed 8/198:42 am
STL
- SFO
Nonstop4h 22m
United Airlines
Deal found 6/10![United Airlines logo]()
$421
This Southwest deal was found by Cheapflights users on 6/13. 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 8/2012:00 pm
SFO
- STL
Nonstop3h 50m
Southwest
Sun 8/2312:00 pm
STL
- SFO
Nonstop4h 10m
Southwest
Deal found 6/13![Southwest logo]()
$516
This Alaska Airlines deal was found by Cheapflights users on 6/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:20 am
SFO
- STL
2 stops9h 37m
Alaska Airlines
Tue 7/285:37 pm
STL
- SFO
1 stop7h 59m
Alaska Airlines
Deal found 6/15![Alaska Airlines logo]()
$550
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/612:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Tue 7/217:05 pm
STL
- SFO
1 stop7h 27m
United Airlines
Deal found 6/14![United Airlines logo]()
$480
This Southwest deal was found by Cheapflights users on 6/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:05 am
SFO
- STL
2 stops10h 55m
Southwest
Fri 7/178:10 am
STL
- SFO
2 stops7h 45m
Southwest
Deal found 6/15![Southwest logo]()
$533
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Mon 7/276:30 pm
STL
- SFO
1 stop7h 35m
United Airlines
Deal found 6/15![United Airlines logo]()
$498
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/22:15 pm
SFO
- STL
2 stops7h 40m
Southwest
Wed 7/81:45 pm
STL
- SFO
2 stops10h 30m
Southwest
Deal found 6/12![Southwest logo]()
$553
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Sun 7/197:23 pm
STL
- SFO
Nonstop4h 20m
United Airlines
Deal found 6/11![United Airlines logo]()
$516
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Wed 7/86:00 am
STL
- SFO
1 stop7h 38m
United Airlines
Deal found 6/12![United Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Sat 7/117:23 pm
STL
- SFO
Nonstop4h 20m
United Airlines
Deal found 6/14![United Airlines logo]()
$556
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Sun 7/57:23 pm
STL
- SFO
Nonstop4h 20m
United Airlines
Deal found 6/11![United Airlines logo]()
$570
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:12 pm
SFO
- STL
Nonstop4h 05m
United Airlines
Sat 8/17:23 pm
STL
- SFO
Nonstop4h 20m
United Airlines
Deal found 6/14![United Airlines logo]()
$570
Last-minute flights from San Francisco to St. LouisDiscover last-minute flight deals from San Francisco to St. Louis. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to St. Louis. Data last updated June 16, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:45 pm
SFO
- STL
1 stop20h 06m
Frontier
Mon 7/68:08 pm
STL
- SFO
1 stop16h 22m
Frontier
Deal found 6/15![Frontier logo]()
$352
This CheapOair deal was found by Cheapflights users on 6/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/29:43 pm
SFO
- STL
1 stop19h 10m
Frontier
Tue 7/78:08 pm
STL
- SFO
1 stop17h 19m
Frontier
Deal found 6/15![Frontier logo]()
$360
This Travelocity deal was found by Cheapflights users on 6/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:39 pm
SFO
- STL
1 stop15h 27m
Frontier
Wed 7/297:03 pm
STL
- SFO
1 stop15h 45m
Frontier
Deal found 6/15![Frontier logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Fri 7/37:07 pm
SFO
- STL
2 stops11h 45m
Frontier
Fri 7/317:10 pm
STL
- SFO
1 stop15h 38m
Frontier
Deal found 6/15![Frontier logo]()
$359
This Frontier deal was found by Cheapflights users on 6/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
SFO
- STL
1 stop11h 23m
Frontier
Thu 7/163:41 pm
STL
- SFO
1 stop9h 18m
Frontier
Deal found 6/15![Frontier logo]()
$348
This Frontier deal was found by Cheapflights users on 6/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:10 pm
SFO
- STL
1 stop8h 47m
Frontier
Sun 7/123:41 pm
STL
- SFO
1 stop9h 18m
Frontier
Deal found 6/13![Frontier logo]()
$349
This Frontier deal was found by Cheapflights users on 6/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:00 am
SFO
- STL
1 stop11h 23m
Frontier
Thu 7/233:41 pm
STL
- SFO
1 stop9h 18m
Frontier
Deal found 6/13![Frontier logo]()
$356
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:29 am
SFO
- STL
1 stop12h 27m
Frontier
Sat 7/188:08 pm
STL
- SFO
1 stop6h 15m
Frontier
Deal found 6/11![Frontier logo]()
$351
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:39 pm
SFO
- STL
1 stop19h 44m
Frontier
Sun 7/197:10 pm
STL
- SFO
1 stop15h 38m
Frontier
Deal found 6/11![Frontier logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 6/15. 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.
Sun 7/1910:23 pm
SFO
- STL
2 stops41h 42m
Frontier
Fri 7/248:08 pm
STL
- SFO
1 stop6h 15m
Frontier
Deal found 6/15![Frontier logo]()
$355
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 7/203:43 pm
SFO
- STL
1 stop24h 22m
Frontier
Fri 7/248:08 pm
STL
- SFO
2 stops14h 40m
Frontier
Deal found 6/15![Frontier logo]()
$354
One-way flights from San Francisco to St. LouisSearch for one-way flight options from San Francisco to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
Search for one-way flight options from San Francisco to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/249:39 pm
SFO
- STL
1 stop19h 44m
Frontier
Deal found 6/12![Frontier logo]()
$177
This Super.com deal was found by Cheapflights users on 6/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:39 pm
SFO
- STL
1 stop19h 44m
Frontier
Deal found 6/13![Frontier logo]()
$178
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:00 am
SFO
- STL
1 stop11h 23m
Frontier
Deal found 6/12![Frontier logo]()
$179
This Super.com deal was found by Cheapflights users on 6/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:24 am
SFO
- STL
1 stop6h 12m
Frontier
Deal found 6/14![Frontier logo]()
$180
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:52 pm
SFO
- STL
1 stop12h 56m
Frontier
Deal found 6/11![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 6/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/910:48 pm
SFO
- STL
1 stop8h 52m
Frontier
Deal found 6/13![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/109:33 am
SFO
- STL
2 stops31h 50m
Frontier
Deal found 6/13![Frontier logo]()
$184
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.
Fri 8/215:47 pm
SFO
- STL
3 stops23h 49m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$185
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.
Wed 8/512:54 am
SFO
- STL
2 stops14h 43m
Frontier
Deal found 6/11![Frontier logo]()
$187
This Frontier deal was found by Cheapflights users on 6/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:54 am
SFO
- STL
1 stop12h 02m
Frontier
Deal found 6/13![Frontier logo]()
$188
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:30 am
SFO
- STL
2 stops13h 11m
Delta
Deal found 6/11![Delta logo]()
$189
This Super.com deal was found by Cheapflights users on 6/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2810:10 pm
SFO
- STL
1 stop8h 42m
Frontier
Deal found 6/13![Frontier logo]()
$191
Find flight deals from San Francisco to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to St. Louis (STL). 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 June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $347 (Kiwi.com) |
One-way from | $177 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $538 |
Good round-trip deal | $519 or less |
Good one-way deal | $259 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco 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 16, 2026.
Use the filters below to find and compare flights from San Francisco to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Tue 8/18
5:00 am-3:38 pm
1 stop8h 38m
Lambert-St Louis
Wed 8/19
8:42 am-11:04 am
Nonstop4h 22m
$421
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Mon 7/6
12:12 pm-6:17 pm
Nonstop4h 05m
Lambert-St Louis
Tue 7/21
7:05 pm-12:32 am
1 stop7h 27m
$480
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Wed 7/22
12:12 pm-6:17 pm
Nonstop4h 05m
Lambert-St Louis
Mon 7/27
6:30 pm-12:05 am
1 stop7h 35m
$498
Quickest round-trip
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Thu 8/20
12:00 pm-5:50 pm
Nonstop3h 50m
Lambert-St Louis
Sun 8/23
12:00 pm-2:10 pm
Nonstop4h 10m
$516
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Fri 7/17
12:12 pm-6:17 pm
Nonstop4h 05m
Lambert-St Louis
Sun 7/19
7:23 pm-9:43 pm
Nonstop4h 20m
$516
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Sat 7/11
7:05 am-8:00 pm
2 stops10h 55m
Lambert-St Louis
Fri 7/17
8:10 am-1:55 pm
2 stops7h 45m
$533
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Thu 7/2
12:12 pm-6:17 pm
Nonstop4h 05m
Lambert-St Louis
Wed 7/8
6:00 am-11:38 am
1 stop7h 38m
$533
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Sat 7/4
7:20 am-6:57 pm
2 stops9h 37m
Lambert-St Louis
Tue 7/28
5:37 pm-11:36 pm
1 stop7h 59m
$550
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Thu 7/2
2:15 pm-11:55 pm
2 stops7h 40m
Lambert-St Louis
Wed 7/8
1:45 pm-10:15 pm
2 stops10h 30m
$553
San FranciscoSt. Louis
SFO - STL
SFOSTL
San Francisco
Fri 7/3
12:12 pm-6:17 pm
Nonstop4h 05m
Lambert-St Louis
Sat 7/11
7:23 pm-9:43 pm
Nonstop4h 20m
$556
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from San Francisco to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to St. Louis in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Francisco-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Francisco with our price prediction graph.
SFO-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 San Francisco to St. Louis
How far ahead should I book a flight from San Francisco to St. Louis?
To ensure you get the cheapest price possible for a flight from San Francisco to St. Louis, you should look to book at least 46 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 month to book a flight from San Francisco to St. Louis?
Currently, September is the cheapest month in which you can book a flight from San Francisco to St. Louis (average of $411). Flying from San Francisco to St. Louis in March is currently the most expensive (average of $635). 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 SFO to STL?
Find hourly flight availability from San Francisco to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 16, 2026.
It’s optimal to fly from San Francisco to St. Louis at noon. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight in the afternoon.
The best insider tips for San Francisco to St. Louis 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 San Francisco to St. Louis trip
Our travel experts
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 16, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from San Francisco to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Overall
7.9
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from San Francisco 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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San Francisco and St. Louis flights
Browse other San Francisco and St. Louis flight options. Last updated on June 16, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on June 16, 2026.
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Check out other popular destinations found by fellow travelers in 2026
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 16, 2026.
Top 5 airlines flying from San Francisco to St. Louis
Discover the top 5 airlines that operate flights from San Francisco 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$156 | Average$309 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$208 | Average$404 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$502 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$322 | Average$569 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$327 | Average$568 | FlexibilityNo cancel fee | On-time63% |