STL - SJC

$91 Find Cheap Flights from St. Louis to San Jose

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to San Jose departing on 6/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to San Jose

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to San Jose, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to San Jose, as well as popular online travel agencies
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Cheap Flight Deals from St. Louis to San Jose (STL-SJC)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to San Jose that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from St. Louis to San Jose

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to San Jose.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Frontier Logo
8:15 pm - 11:04 amSTL-SJC
16h 49m1 stop
Frontier Logo
12:20 pm - 9:09 amSJC-STL
18h 49m1 stop
$191Frontier
Find Deal
Wed, May 7 - Sun, May 11
Frontier Logo
2:27 pm - 1:40 pmSTL-SJC
25h 13m1 stop
Frontier Logo
2:30 pm - 1:42 pmSJC-STL
21h 12m1 stop
$241Frontier
Find Deal
Sun, Jun 1 - Sun, Jun 8
Delta Logo
7:30 am - 11:48 amSTL-SJC
6h 18m1 stop
Delta Logo
10:25 pm - 9:43 amSJC-STL
9h 18m1 stop
$257Delta
Find Deal
Sat, May 31 - Wed, Jun 11
American Airlines Logo
5:31 am - 10:48 amSTL-SJC
7h 17m1 stop
American Airlines Logo
9:45 am - 8:23 pmSJC-STL
8h 38m2 stops
$262American Airlines
Find Deal
Sat, Jul 5 - Tue, Jul 15
Delta Logo
7:19 pm - 11:41 pmSTL-SJC
6h 22m1 stop
Delta Logo
10:25 pm - 9:43 amSJC-STL
9h 18m1 stop
$278Delta
Find Deal
Sun, Jun 1 - Wed, Jun 11
Southwest Logo
5:40 am - 10:15 amSTL-SJC
6h 35m1 stop
Southwest Logo
4:50 pm - 1:40 amSJC-STL
6h 50m1 stop
$302Southwest
Find Deal
Sat, Jun 21 - Sun, Jun 29
American Airlines Logo
5:25 am - 10:53 amSTL-SJC
7h 28m1 stop
American Airlines Logo
1:13 pm - 12:15 amSJC-STL
9h 02m1 stop
$318American Airlines
Find Deal
Sat, Jun 14 - Sat, Jun 21
Southwest Logo
5:20 pm - 7:30 pmSTL-SJC
4h 10mnonstop
Southwest Logo
6:35 am - 3:10 pmSJC-STL
6h 35m1 stop
$328Southwest
Find Deal
Sat, Jul 5 - Tue, Jul 15
United Airlines Logo
6:30 am - 8:50 pmSTL-SJC
16h 20m2 stops
United Airlines Logo
12:50 pm - 10:15 pmSJC-STL
7h 25m1 stop
$462United Airlines
Find Deal
Mon, Jun 2 - Wed, Jun 11
United Airlines Logo
6:30 am - 5:22 pmSTL-SJC
12h 52m2 stops
United Airlines Logo
7:00 am - 10:45 pmSJC-STL
13h 45m2 stops
$660United Airlines
Find Deal
Mon, Jun 16 - Wed, Jun 25

KAYAK's insights & trends for St. Louis to San Jose flights

Get data-powered insights and trends into flights from St. Louis to San Jose to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from St. Louis to San Jose?

The average price of all round-trip flights from St. Louis to San Jose clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to San Jose, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Mondays and the most expensive ones on Saturdays.

What is the cheapest month to fly from St. Louis to San Jose?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to San Jose, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from St. Louis to San Jose is November, where tickets cost $272 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $378 and $375 respectively.

How far in advance should I book a flight from St. Louis to San Jose?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to San Jose, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from St. Louis to San Jose, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low season

March

High season

July

Cheapest flight

$91
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from St. Louis to San Jose

When to book flights from St. Louis to San Jose

Are your dates flexible? Find out the best times to travel from St. Louis to San Jose based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to San Jose

  • What is the cheapest flight from St. Louis to San Jose?

    In the last 3 days, the lowest price for a flight from St. Louis to San Jose was $91 for a one-way ticket and $191 for a round-trip.

  • Do I need a passport to fly between St. Louis and San Jose?

    No

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to San Jose?

    American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the St. Louis to San Jose flight route.

  • Which aircraft models fly most regularly from St. Louis to San Jose?

    The Airbus A319 is the aircraft model that flies most regularly on the St. Louis to San Jose flight route.

  • Which airline alliances offer flights from St. Louis to San Jose?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and San Jose, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to San Jose, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from St. Louis to San Jose are Delta and Southwest. With an average price for the route of $325 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $397 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from St. Louis to San Jose?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to San Jose.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to San Jose?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Jose from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to San Jose?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Jose with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and SJC can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to San Jose?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Jose from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly direct from St. Louis to San Jose?

Find which airlines fly direct from Lambert-St Louis Airport to San Jose Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to San Jose

Saturday

Southwest

Southwest

See more direct flights

Direct returns

San Jose to Lambert-St Louis

Saturday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from St. Louis to San Jose

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to San Jose. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to San Jose? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4287 reviews
8.0Comfort
7.6Entertainment
8.2Boarding
7.1Food
8.6Crew
Airline reviews

It was a perfect flight in all aspects! Both legs!

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

It was a perfect flight in all aspects! Both legs!

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Very good. Sad to learn Southwest is going start to charge for bags

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Exceptional crew! Friendly and professional. Pleasant attitude and treated everyone with respect.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a hell hole of an airport. It is the new LaGuardia. Everything Cobbled together. Security gates closed. Terri directional signage

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

Rough day of travel all the way around. Wrong info given to us multiple times and mistakes in their booking making our trip 10 hours longer than planned. I’m bummed because I fly Delta all the time and love them. Mistakes happen. Just bummed that this was a rare trip our whole family was traveling together.

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

Everything you need to know for your flight from St. Louis to San Jose

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