$119+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJC
Aug 7 — Aug 141
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to San Jose
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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 July 8, 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 July 8, 2026.
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/229:00 am
STL
- SJC
1 stop6h 08m
United Airlines
Sat 8/292:10 pm
SJC
- STL
1 stop6h 49m
United Airlines
Deal found 7/7![United Airlines logo]()
$221
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:16 am
STL
- SJC
2 stops10h 17m
American Airlines
Tue 9/82:30 pm
SJC
- STL
1 stop7h 12m
American Airlines
Deal found 7/7![American Airlines logo]()
$226
This Southwest deal was found by Cheapflights users on 7/7. 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 8/229:40 am
STL
- SJC
2 stops9h 00m
Southwest
Sat 8/2910:45 am
SJC
- STL
1 stop7h 35m
Southwest
Deal found 7/7![Southwest logo]()
$228
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:42 am
STL
- SJC
2 stops8h 15m
American Airlines
Wed 9/96:00 am
SJC
- STL
2 stops10h 04m
American Airlines
Deal found 7/7![American Airlines logo]()
$231
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 8/67:45 pm
STL
- SJC
1 stop5h 59m
Delta
Tue 8/116:10 am
SJC
- STL
1 stop7h 00m
Delta
Deal found 7/7![Delta logo]()
$237
This Travelocity deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:46 pm
STL
- SJC
1 stop26h 43m
Frontier
Sun 9/139:10 am
SJC
- STL
1 stop24h 41m
Frontier
Deal found 7/4![Frontier logo]()
$252
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:42 am
STL
- SJC
1 stop7h 08m
American Airlines
Tue 8/112:30 pm
SJC
- STL
1 stop7h 12m
American Airlines
Deal found 7/7![American Airlines logo]()
$258
This CheapOair deal was found by Cheapflights users on 7/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:10 pm
STL
- SJC
1 stop20h 07m
Frontier
Sun 8/162:12 pm
SJC
- STL
1 stop26h 03m
Frontier
Deal found 7/7![Frontier logo]()
$262
This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:45 pm
STL
- SJC
1 stop20h 37m
Frontier
Thu 8/271:02 pm
SJC
- STL
1 stop26h 48m
Frontier
Deal found 7/6![Frontier logo]()
$278
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 July 8, 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 July 8, 2026.
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:55 pm
STL
- SJC
1 stop5h 59m
Delta
Tue 12/86:30 am
SJC
- STL
1 stop6h 01m
Delta
Deal found 7/3![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 7/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:35 am
STL
- SJC
1 stop8h 13m
Alaska Airlines
Wed 8/267:02 am
SJC
- STL
1 stop8h 08m
Alaska Airlines
Deal found 7/6![Alaska Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:20 pm
STL
- SJC
1 stop6h 10m
Southwest
Mon 9/72:15 pm
SJC
- STL
1 stop8h 30m
Southwest
Deal found 7/3![Southwest logo]()
$364
This American Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:30 pm
STL
- SJC
1 stop5h 59m
American Airlines
Mon 10/512:58 pm
SJC
- STL
1 stop5h 45m
American Airlines
Deal found 7/5![American Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 7/6. 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.
Fri 9/47:45 pm
STL
- SJC
1 stop5h 59m
Delta
Tue 9/86:10 am
SJC
- STL
1 stop8h 37m
Delta
Deal found 7/6![Delta logo]()
$364
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:15 am
STL
- SJC
1 stop6h 45m
Southwest
Mon 9/72:15 pm
SJC
- STL
1 stop8h 30m
Southwest
Deal found 7/3![Southwest logo]()
$391
This Delta deal was found by Cheapflights users on 7/6. 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 8/258:00 am
STL
- SJC
1 stop6h 54m
Delta
Fri 8/285:10 pm
SJC
- STL
1 stop5h 31m
Delta
Deal found 7/6![Delta logo]()
$364
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:00 am
STL
- SJC
1 stop6h 05m
Delta
Mon 9/75:10 pm
SJC
- STL
1 stop5h 31m
Delta
Deal found 7/5![Delta logo]()
$364
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/259:05 am
STL
- SJC
2 stops7h 25m
Southwest
Fri 8/2811:55 am
SJC
- STL
2 stops8h 00m
Southwest
Deal found 7/3![Southwest logo]()
$408
Last-minute flights from St. Louis to San JoseDiscover last-minute flight deals from St. Louis to San Jose. Data last updated July 8, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to San Jose. Data last updated July 8, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:10 pm
STL
- SJC
1 stop20h 07m
Frontier
Mon 8/32:12 pm
SJC
- STL
1 stop25h 53m
Frontier
Deal found 7/3![Frontier logo]()
$310
This CheapOair deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:10 pm
STL
- SJC
1 stop20h 07m
Frontier
Fri 8/72:12 pm
SJC
- STL
1 stop26h 03m
Frontier
Deal found 7/3![Frontier logo]()
$311
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:32 am
STL
- SJC
1 stop7h 17m
American Airlines
Tue 8/112:30 pm
SJC
- STL
1 stop7h 12m
American Airlines
Deal found 7/7![American Airlines logo]()
$306
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 8/67:45 pm
STL
- SJC
1 stop5h 59m
Delta
Mon 8/105:10 pm
SJC
- STL
1 stop5h 31m
Delta
Deal found 7/7![Delta logo]()
$237
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:42 am
STL
- SJC
1 stop7h 08m
American Airlines
Tue 8/112:30 pm
SJC
- STL
1 stop7h 12m
American Airlines
Deal found 7/7![American Airlines logo]()
$258
This CheapOair deal was found by Cheapflights users on 7/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:10 pm
STL
- SJC
1 stop20h 07m
Frontier
Sun 8/162:12 pm
SJC
- STL
1 stop26h 03m
Frontier
Deal found 7/7![Frontier logo]()
$262
This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:45 pm
STL
- SJC
1 stop20h 37m
Frontier
Thu 8/271:02 pm
SJC
- STL
1 stop26h 48m
Frontier
Deal found 7/6![Frontier logo]()
$278
This United Airlines deal was found by Cheapflights users on 7/7. 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 8/229:00 am
STL
- SJC
1 stop6h 08m
United Airlines
Sat 8/292:10 pm
SJC
- STL
1 stop6h 49m
United Airlines
Deal found 7/7![United Airlines logo]()
$221
This Southwest deal was found by Cheapflights users on 7/7. 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 8/229:40 am
STL
- SJC
2 stops9h 00m
Southwest
Sat 8/2910:45 am
SJC
- STL
1 stop7h 35m
Southwest
Deal found 7/7![Southwest logo]()
$228
This Delta deal was found by Cheapflights users on 7/7. 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.
Sun 8/237:45 pm
STL
- SJC
1 stop5h 59m
Delta
Sat 8/296:10 am
SJC
- STL
1 stop6h 37m
Delta
Deal found 7/7![Delta logo]()
$314
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 July 8, 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 July 8, 2026.
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 9/176:55 pm
STL
- SJC
1 stop6h 45m
Delta
Deal found 7/7![Delta logo]()
$119
This Expedia deal was found by Cheapflights users on 7/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:46 pm
STL
- SJC
1 stop26h 43m
Frontier
Deal found 7/7![Frontier logo]()
$132
This Southwest deal was found by Cheapflights users on 7/7. 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.
Thu 9/175:55 am
STL
- SJC
2 stops8h 00m
Southwest
Deal found 7/7![Southwest logo]()
$133
This CheapOair deal was found by Cheapflights users on 7/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:10 pm
STL
- SJC
1 stop20h 07m
Frontier
Deal found 7/7![Frontier logo]()
$137
This CheapOair deal was found by Cheapflights users on 7/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:03 pm
STL
- SJC
1 stop20h 14m
Frontier
Deal found 7/7![Frontier logo]()
$156
This Southwest deal was found by Cheapflights users on 7/7. 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.
Fri 9/186:15 pm
STL
- SJC
1 stop7h 05m
Southwest
Deal found 7/7![Southwest logo]()
$162
This CheapOair deal was found by Cheapflights users on 7/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:45 pm
STL
- SJC
1 stop19h 22m
Frontier
Deal found 7/6![Frontier logo]()
$166
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:50 pm
STL
- SJC
1 stop6h 34m
Delta
Deal found 7/3![Delta logo]()
$169
This CheapOair deal was found by Cheapflights users on 7/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:10 pm
STL
- SJC
1 stop20h 07m
Frontier
Deal found 7/7![Frontier logo]()
$172
This Southwest deal was found by Cheapflights users on 7/6. 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.
Wed 8/199:05 am
STL
- SJC
2 stops7h 25m
Southwest
Deal found 7/6![Southwest logo]()
$174
This CheapOair deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:03 pm
STL
- SJC
1 stop20h 14m
Frontier
Deal found 7/4![Frontier logo]()
$182
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 July 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (United Airlines) |
One-way from | $119 (Delta) |
Popular in | February |
Cheapest in | January |
Average price | $547 |
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 July 8, 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
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Tue 12/1
7:55 pm-11:54 pm
1 stop5h 59m
San Jose
Tue 12/8
6:30 am-2:31 pm
1 stop6h 01m
$337
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Tue 8/25
6:35 am-12:48 pm
1 stop8h 13m
San Jose
Wed 8/26
7:02 am-5:10 pm
1 stop8h 08m
$364
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 9/5
4:20 pm-8:30 pm
1 stop6h 10m
San Jose
Mon 9/7
2:15 pm-12:45 am
1 stop8h 30m
$364
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Fri 9/4
7:45 pm-11:44 pm
1 stop5h 59m
San Jose
Tue 9/8
6:10 am-4:47 pm
1 stop8h 37m
$364
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Tue 8/25
8:00 am-12:54 pm
1 stop6h 54m
San Jose
Fri 8/28
5:10 pm-12:41 am
1 stop5h 31m
$364
Quickest round-trip
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Sat 9/5
8:00 am-12:05 pm
1 stop6h 05m
San Jose
Mon 9/7
5:10 pm-12:41 am
1 stop5h 31m
$364
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Fri 10/2
2:30 pm-6:29 pm
1 stop5h 59m
San Jose
Mon 10/5
12:58 pm-8:43 pm
1 stop5h 45m
$391
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Thu 9/3
5:15 am-10:00 am
1 stop6h 45m
San Jose
Mon 9/7
2:15 pm-12:45 am
1 stop8h 30m
$391
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Tue 8/25
9:05 am-2:30 pm
2 stops7h 25m
San Jose
Fri 8/28
11:55 am-9:55 pm
2 stops8h 00m
$408
Cheapest one-way
St. LouisSan Jose
STL - SJC
STLSJC
Lambert-St Louis
Tue 9/1
3:50 pm-8:24 pm
1 stop6h 34m
$169
Showing 1-10 of 20 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 July.
| 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
What is the cheapest month to book a flight from St. Louis to San Jose, California?
Currently, January is the cheapest month in which you can book a flight from St. Louis to San Jose, California (average of $369). Flying from St. Louis to San Jose, California in February is currently the most expensive (average of $793). 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 July 8, 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.
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Reviews
1 / 20
2.0
MediocreBhoopal,Nov 2024
STL - BOS
Related info for your journey
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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 July 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$302 | Average$462 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$318 | Average$479 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$339 | Average$527 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$381 | Average$530 | FlexibilityNo cancel fee | On-time71% |