$100 Cheap Flights from St. Louis (STL) to San Jose (SJC)

View $100 flight on Wed, Apr 30, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from St. Louis to San Jose (STL-SJC)

Prices were available within the past 7 days and start at $100 for one-way flights and $198 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Apr 30 - Sun, May 4
STL
St. Louis
SJC
San Jose
$198 Roundtrip, found 5 hours ago
$198
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, Apr 30 from St. Louis to San Jose, returning Sun, May 4, priced at $198 found 5 hours ago
Frontier Airlines
Thu, May 1 - Sun, May 11
STL
St. Louis
SJC
San Jose
$208 Roundtrip, found 5 hours ago
$208
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, May 1 from St. Louis to San Jose, returning Sun, May 11, priced at $208 found 5 hours ago
Frontier Airlines
Wed, Apr 30 - Thu, May 15
STL
St. Louis
SJC
San Jose
$218 Roundtrip, found 5 hours ago
$218
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Wed, Apr 30 from St. Louis to San Jose, returning Thu, May 15, priced at $218 found 5 hours ago
Frontier Airlines
Thu, May 1 - Thu, May 15
STL
St. Louis
SJC
San Jose
$228 Roundtrip, found 5 hours ago
$228
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, May 1 from St. Louis to San Jose, returning Thu, May 15, priced at $228 found 5 hours ago
Frontier Airlines
Wed, May 21 - Sun, Jun 1
STL
St. Louis
SJC
San Jose
$238 Roundtrip, found 4 days ago
$238
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Wed, May 21 from St. Louis to San Jose, returning Sun, Jun 1, priced at $238 found 4 days ago
Frontier Airlines
Sun, Jun 1 - Sun, Jun 8
STL
St. Louis
SJC
San Jose
$248 Roundtrip, found 2 days ago
$248
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, Jun 1 from St. Louis to San Jose, returning Sun, Jun 8, priced at $248 found 2 days ago
Southwest Airlines
Fri, Jun 13 - Wed, Jun 18
STL
St. Louis
SJC
San Jose
$252 Roundtrip, found 1 day ago
$252
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Jun 13 from St. Louis to San Jose, returning Wed, Jun 18, priced at $252 found 1 day ago
American Airlines
Fri, May 30 - Tue, Jun 17
STL
St. Louis
SJC
San Jose
$257 Roundtrip, found 1 hour ago
$257
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Fri, May 30 from St. Louis to San Jose, returning Tue, Jun 17, priced at $257 found 1 hour ago
United
Sat, Oct 11 - Thu, Oct 16
STL
St. Louis
SJC
San Jose
$257 Roundtrip, just found
$257
Roundtrip
just found
Select United flight, departing Sat, Oct 11 from St. Louis to San Jose, returning Thu, Oct 16, priced at $257 just found
Delta
Wed, Aug 13 - Mon, Aug 18
STL
St. Louis
SJC
San Jose
$264 Roundtrip, found 6 days ago
$264
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Aug 13 from St. Louis to San Jose, returning Mon, Aug 18, priced at $264 found 6 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC) cost?
Discover the latest flight deals from STL to SJC by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to SJC?
The cheapest flights from STL to SJC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to SJC?
With prices as low as $257 for a one-way flight from STL to SJC, Southwest Airlines is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STL on June 21 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
You’ll need to catch a flight with a layover if you’re traveling from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC). Direct flights don’t operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from STL to SJC?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from STL to SJC?
Consider booking with Sun Country Airlines if you’d like to go straight from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC) without any delays. This airline has the best track record for punctuality, with an on-time performance of 100%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC) that leaves before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for San Jose from Lambert-St. Louis Intl. Airport (STL)?
San Francisco Intl. Airport (SFO) is the only airport in San Jose with direct flights from Lambert-St. Louis Intl. Airport (STL). Browse the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC) last-minute?
Waiting until right before your break to book a ticket from STL to SJC generally means paying more. Although you may find some last-minute discounts, there’s no guarantee. Keep your travel schedule open to maximize your chances of landing a bargain.
Is it cheaper to book a STL to SJC flight and hotel package?
You can save money by booking a STL to SJC flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. Once you’ve selected your ideal flights and accommodations, consider other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Usually, it’s possible to reschedule or cancel your STL to SJC flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are allowed and if any costs are involved. You’ll also find more details on our Customer Service portal.
*Available to One Key members.