$117+ Cheap flights from St. Louis to San Jose, CA (STL - SJC)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJC
Apr 28 — May 51
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to San Jose 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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Cheapest flights from St. Louis to San JoseExplore the most affordable flight options available from St. Louis to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.
Explore the most affordable flight options available from St. Louis to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 29, 2026.
This CheapOair deal was found by Cheapflights users on 3/25. 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 5/1412:16 pm
STL
- SJC
1 stop27h 01m
Frontier
Mon 5/182:12 pm
SJC
- STL
1 stop25h 54m
Frontier
Deal found 3/25![Frontier logo]()
$196
This CheapOair deal was found by Cheapflights users on 3/23. 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 5/712:16 pm
STL
- SJC
1 stop27h 01m
Frontier
Mon 5/112:12 pm
SJC
- STL
1 stop25h 54m
Frontier
Deal found 3/23![Frontier logo]()
$221
This CheapOair deal was found by Cheapflights users on 3/26. 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 5/289:21 pm
STL
- SJC
1 stop17h 56m
Frontier
Thu 6/42:12 pm
SJC
- STL
1 stop28h 14m
Frontier
Deal found 3/26![Frontier logo]()
$241
This CheapOair deal was found by Cheapflights users on 3/26. 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 4/239:55 pm
STL
- SJC
1 stop21h 49m
Frontier
Sun 4/268:22 pm
SJC
- STL
1 stop22h 38m
Frontier
Deal found 3/26![Frontier logo]()
$281
This CheapOair deal was found by Cheapflights users on 3/26. 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 5/112:07 pm
STL
- SJC
1 stop7h 37m
Frontier
Sun 5/38:22 pm
SJC
- STL
1 stop22h 38m
Frontier
Deal found 3/26![Frontier logo]()
$301
This Southwest deal was found by Cheapflights users on 3/24. 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.
Tue 4/141:45 pm
STL
- SJC
1 stop6h 30m
Southwest
Tue 4/213:15 pm
SJC
- STL
1 stop6h 00m
Southwest
Deal found 3/24![Southwest logo]()
$312
This CheapOair deal was found by Cheapflights users on 3/24. 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 3/268:06 pm
STL
- SJC
1 stop24h 01m
Frontier
Sun 3/298:20 pm
SJC
- STL
1 stop12h 59m
Frontier
Deal found 3/24![Frontier logo]()
$316
This Delta deal was found by Cheapflights users on 3/26. 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 4/216:00 am
STL
- SJC
1 stop8h 21m
Delta
Wed 4/226:00 am
SJC
- STL
1 stop5h 23m
Delta
Deal found 3/26![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 3/27. 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 6/22:27 pm
STL
- SJC
2 stops10h 07m
Delta
Tue 6/98:44 pm
SJC
- STL
2 stops9h 58m
Delta
Deal found 3/27![Delta logo]()
$321
This Southwest deal was found by Cheapflights users on 3/24. 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 4/156:35 am
STL
- SJC
1 stop6h 00m
Southwest
Tue 4/212:20 pm
SJC
- STL
2 stops6h 55m
Southwest
Deal found 3/24![Southwest logo]()
$322
Best flights from St. Louis to San JoseDiscover carefully curated flight deals from St. Louis to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 29, 2026.
Discover carefully curated flight deals from St. Louis to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 29, 2026.
This Delta deal was found by Cheapflights users on 3/23. 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 5/67:00 am
STL
- SJC
1 stop7h 23m
Delta
Tue 5/124:59 pm
SJC
- STL
1 stop5h 31m
Delta
Deal found 3/23![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 3/26. 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 5/212:35 pm
STL
- SJC
2 stops9h 15m
Southwest
Wed 5/611:40 am
SJC
- STL
1 stop6h 30m
Southwest
Deal found 3/26![Southwest logo]()
$342
This CheapOair deal was found by Cheapflights users on 3/23. 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 5/712:16 pm
STL
- SJC
1 stop27h 01m
Frontier
Sun 5/102:12 pm
SJC
- STL
1 stop28h 11m
Frontier
Deal found 3/23![Frontier logo]()
$416
This Delta deal was found by Cheapflights users on 3/24. 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 6/26:21 am
STL
- SJC
1 stop7h 57m
Delta
Tue 6/910:59 pm
SJC
- STL
1 stop8h 33m
Delta
Deal found 3/24![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 3/26. 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 5/76:20 am
STL
- SJC
2 stops7h 25m
Southwest
Thu 5/72:40 pm
SJC
- STL
2 stops7h 35m
Southwest
Deal found 3/26![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 3/25. 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 4/256:00 am
STL
- SJC
1 stop8h 21m
Delta
Tue 4/289:37 am
SJC
- STL
1 stop5h 49m
Delta
Deal found 3/25![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 3/24. 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 5/76:05 am
STL
- SJC
1 stop8h 10m
Southwest
Sun 5/106:00 pm
SJC
- STL
1 stop5h 55m
Southwest
Deal found 3/24![Southwest logo]()
$441
This Delta deal was found by Cheapflights users on 3/26. 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 4/185:00 pm
STL
- SJC
1 stop6h 21m
Delta
Sun 4/1911:00 pm
SJC
- STL
1 stop7h 30m
Delta
Deal found 3/26![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 3/23. 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 5/76:05 am
STL
- SJC
1 stop8h 10m
Southwest
Thu 5/212:40 pm
SJC
- STL
2 stops7h 35m
Southwest
Deal found 3/23![Southwest logo]()
$446
This Southwest deal was found by Cheapflights users on 3/26. 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.
Mon 4/136:00 pm
STL
- SJC
1 stop6h 40m
Southwest
Tue 4/147:45 am
SJC
- STL
1 stop8h 10m
Southwest
Deal found 3/26![Southwest logo]()
$461
This Delta deal was found by Cheapflights users on 3/25. 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 5/157:59 pm
STL
- SJC
1 stop5h 42m
Delta
Sun 5/1710:00 pm
SJC
- STL
1 stop8h 10m
Delta
Deal found 3/25![Delta logo]()
$474
Last-minute flights from St. Louis to San JoseDiscover last-minute flight deals from St. Louis to San Jose. Data last updated March 29, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to San Jose. Data last updated March 29, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 3/24. 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 3/268:06 pm
STL
- SJC
1 stop24h 01m
Frontier
Sun 3/298:20 pm
SJC
- STL
1 stop12h 59m
Frontier
Deal found 3/24![Frontier logo]()
$316
This CheapOair deal was found by Cheapflights users on 3/27. 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 4/1012:22 pm
STL
- SJC
1 stop9h 15m
Frontier
Sun 4/1211:56 am
SJC
- STL
1 stop21h 31m
Frontier
Deal found 3/27![Frontier logo]()
$338
This Southwest deal was found by Cheapflights users on 3/24. 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.
Tue 4/141:45 pm
STL
- SJC
1 stop6h 30m
Southwest
Tue 4/213:15 pm
SJC
- STL
1 stop6h 00m
Southwest
Deal found 3/24![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 3/24. 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 4/156:35 am
STL
- SJC
1 stop6h 00m
Southwest
Tue 4/212:20 pm
SJC
- STL
2 stops6h 55m
Southwest
Deal found 3/24![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 3/26. 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 4/216:00 am
STL
- SJC
1 stop8h 21m
Delta
Wed 4/226:00 am
SJC
- STL
1 stop5h 23m
Delta
Deal found 3/26![Delta logo]()
$317
This Delta deal was found by Cheapflights users on 3/25. 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 4/212:20 pm
STL
- SJC
2 stops9h 55m
Delta
Sat 5/26:20 am
SJC
- STL
1 stop6h 09m
Delta
Deal found 3/25![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 3/25. 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 4/227:00 am
STL
- SJC
1 stop7h 23m
Delta
Sat 5/21:45 pm
SJC
- STL
1 stop7h 51m
Delta
Deal found 3/25![Delta logo]()
$337
This CheapOair deal was found by Cheapflights users on 3/26. 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 4/239:55 pm
STL
- SJC
1 stop21h 49m
Frontier
Sun 4/268:22 pm
SJC
- STL
1 stop22h 38m
Frontier
Deal found 3/26![Frontier logo]()
$281
One-way flights from St. Louis to San JoseSearch for one-way flight options from St. Louis to San Jose. Find affordable one-way fares based on user searches. Data last updated March 29, 2026.
Search for one-way flight options from St. Louis to San Jose. Find affordable one-way fares based on user searches. Data last updated March 29, 2026.
This CheapOair deal was found by Cheapflights users on 3/27. 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 5/712:16 pm
STL
- SJC
1 stop27h 01m
Frontier
Deal found 3/27![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 3/25. 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 4/269:55 pm
STL
- SJC
2 stops23h 32m
Frontier
Deal found 3/25![Frontier logo]()
$156
This Delta deal was found by Cheapflights users on 3/24. 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 4/156:45 pm
STL
- SJC
1 stop6h 57m
Delta
Deal found 3/24![Delta logo]()
$159
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:27 pm
STL
- SJC
2 stops10h 09m
Delta
Deal found 3/24![Delta logo]()
$161
This Southwest deal was found by Cheapflights users on 3/24. 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 4/155:30 am
STL
- SJC
2 stops8h 00m
Southwest
Deal found 3/24![Southwest logo]()
$164
This CheapOair deal was found by Cheapflights users on 3/27. 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.
Wed 4/294:46 pm
STL
- SJC
1 stop7h 49m
Alaska Airlines
Deal found 3/27![Alaska Airlines logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/313:33 pm
STL
- SJC
2 stops23h 44m
Frontier
Deal found 3/26![Frontier logo]()
$181
This Southwest deal was found by Cheapflights users on 3/28. 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 4/186:05 am
STL
- SJC
2 stops7h 45m
Southwest
Deal found 3/28![Southwest logo]()
$184
This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:20 am
STL
- SJC
1 stop6h 50m
American Airlines
Deal found 3/24![American Airlines logo]()
$193
This Delta deal was found by Cheapflights users on 3/24. 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 4/142:20 pm
STL
- SJC
2 stops9h 55m
Delta
Deal found 3/24![Delta logo]()
$195
Find flight deals from St. Louis to San Jose
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Jose (SJC). 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 March 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $196 (CheapOair) |
One-way from | $117 (CheapOair) |
Popular in | February |
Cheapest in | May |
Average price | $378 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to San Jose 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 March 29, 2026.
Use the filters below to find and compare flights from St. Louis to San Jose that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Wed 5/6
7:00 am-12:23 pm
1 stop7h 23m
San Jose
Tue 5/12
4:59 pm-12:30 am
1 stop5h 31m
$317
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Tue 6/2
6:21 am-12:18 pm
1 stop7h 57m
San Jose
Tue 6/9
10:59 pm-9:32 am
1 stop8h 33m
$317
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 5/2
12:35 pm-7:50 pm
2 stops9h 15m
San Jose
Wed 5/6
11:40 am-8:10 pm
1 stop6h 30m
$342
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Thu 5/7
6:20 am-11:45 am
2 stops7h 25m
San Jose
Thu 5/7
2:40 pm-12:15 am
2 stops7h 35m
$395
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Thu 5/7
12:16 pm-1:17 pm
1 stop27h 01m
San Jose
Sun 5/10
2:12 pm-8:23 pm
1 stop28h 11m
$416
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 4/25
6:00 am-12:21 pm
1 stop8h 21m
San Jose
Tue 4/28
9:37 am-5:26 pm
1 stop5h 49m
$428
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 4/18
5:00 pm-9:21 pm
1 stop6h 21m
San Jose
Sun 4/19
11:00 pm-8:30 am
1 stop7h 30m
$439
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Thu 5/7
6:05 am-12:15 pm
1 stop8h 10m
San Jose
Sun 5/10
6:00 pm-1:55 am
1 stop5h 55m
$441
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Thu 5/7
6:05 am-12:15 pm
1 stop8h 10m
San Jose
Thu 5/21
2:40 pm-12:15 am
2 stops7h 35m
$446
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Mon 4/13
6:00 pm-10:40 pm
1 stop6h 40m
San Jose
Tue 4/14
7:45 am-5:55 pm
1 stop8h 10m
$461
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from St. Louis to San Jose
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 St. Louis to San Jose in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-San Jose, California flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-San Jose, California flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-San Jose, California flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-San Jose, California 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 St. Louis-San Jose, California 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 St. Louis to San Jose
Have a flexible travel schedule? Discover the best time to fly to San Jose from St. Louis with our price prediction graph.
STL-SJC
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 San Jose
How far ahead should I book a flight from St. Louis to San Jose, California?
Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Jose. Price data was last updated on March 13, 2026.
The best time to book flights from St. Louis to San Jose, California is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from St. Louis to San Jose, California?
Currently, August is the cheapest month in which you can book a flight from St. Louis to San Jose, California (average of $121). Flying from St. Louis to San Jose, California in May is currently the most expensive (average of $256). 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.
How much does it cost to fly round-trip from St. Louis to San Jose, California?
Reviews of airlines servicing San Jose
Get insights into the airlines that provide service to San Jose. 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 San Jose. Reviews last updated March 29, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from St. Louis to San Jose have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from St. Louis to San Jose. 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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St. Louis and San Jose flights
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Other flights from St. Louis
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Top 4 airlines flying from St. Louis to San Jose
Discover the top 4 airlines that operate flights from St. Louis to San Jose. 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 March 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$256 | Average$317 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$259 | Average$417 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$290 | Average$346 | FlexibilityNo cancel fee | On-time69% |