$171 Cheap United flights St. Louis (STL) to San Jose (SJC)

View $171 flight on Thu, Nov 6, 2025Opens in a new window

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$171 Cheap United flights St. Louis (STL) to San Jose (SJC)

Prices were available within the past 7 days and start at $171 for one-way flights and $313 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 27 - Wed, Sep 3
STL
St. Louis
SJC
San Jose
$313 Roundtrip, found 9 hours ago
$313
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Aug 27 from St. Louis to San Jose, returning Wed, Sep 3, priced at $313 found 9 hours ago
Flights from St. Louis (STL) to San Jose (SJC)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Norman Y. Mineta San Jose Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
1711 mi
Average flight time
4 hours 16 mins

Frequently asked questions

How much is a United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
You'll discover cheap round-trip United Airlines flights from $313 from STL to SJC by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $171 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from STL to SJC with United Airlines?
Look for one-way or round-trip flights to San Jose in April or November. You could find lower fares with United Airlines during these off-peak travel months.
What is the cheapest time to book flights from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC) with United Airlines?
Look for affordable United Airlines flights from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC) one to three months prior to your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
To figure out if there's a direct journey from STL to SJC with United Airlines or other airlines, select the "Nonstop" filter when searching for flights.
What is the earliest United Airlines flight from STL to SJC?
Search United Airlines's earliest flights from STL to SJC by checking our "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in San Jose?
Norman Y. Mineta San Jose Intl. Airport (SJC) is the primary San Jose hub for United Airlines flights from Lambert-St. Louis Intl. Airport (STL).
Why fly with United Airlines from STL to SJC?
Journey from STL to SJC with United Airlines and you can look forward to a host of benefits including a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you could also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Lambert-St. Louis Intl. Airport (STL) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Depending on the type of fare you purchased, a fee typically applies if you modify or cancel your booking more than 24 hours after it's been confirmed. To secure plane tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when looking for flights. To learn more about modifying or canceling your reservation, visit "Trips," select your flight and click on "Manage Booking."

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