SJC - STL

$141 Find Cheap Flights from San Jose to St. Louis

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to St. Louis departing on 6/3. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to St. Louis, 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 San Jose to St. Louis, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$291
Overall average: $426
Frontier
Mon 3/23Mon 3/30
SJC - STL • 1 stop
Cheapest one-way
$151
Typical prices: $155-$264
Frontier
Wed 6/3
SJC - STL • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
SJC offers a smooth security process with shorter lines.
Use MetroLink for easy access to downtown St. Louis.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Frontier
Cheapest • from $291 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Jose and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Austin (AUS)
Cheapest • Avg $337 (round-trip)
Phoenix (PHX)
Shortest trip • 5h 33m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 16% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to St. Louis 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Mon, Mar 23 - Mon, Mar 30
Frontier Logo
7:42 pm - 11:19 am
SJC
-
STL
13h 37m
1 stop
Frontier Logo
12:14 pm - 6:07 pm
STL
-
SJC
7h 53m
1 stop
$291Frontier
Mon, Apr 13 - Wed, Apr 15
Delta Logo
6:32 pm - 9:42 am
SJC
-
STL
13h 10m
2 stops
Delta Logo
7:00 am - 5:52 pm
STL
-
SJC
12h 52m
2 stops
$305Delta
Sat, May 16 - Wed, May 20
Alaska Airlines Logo
2:34 pm - 11:54 pm
SJC
-
STL
7h 20m
1 stop
Alaska Airlines Logo
5:33 pm - 10:59 pm
STL
-
SJC
7h 26m
1 stop
$310Alaska Airlines
Mon, Apr 13 - Wed, Apr 15
Delta Logo
6:32 pm - 9:42 am
SJC
-
STL
13h 10m
2 stops
Delta Logo
7:00 am - 12:23 pm
STL
-
SJC
7h 23m
1 stop
$311Delta
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
6:35 am - 1:50 pm
SJC
-
STL
5h 15m
1 stop
Southwest Logo
1:45 pm - 6:15 pm
STL
-
SJC
6h 30m
1 stop
$312Southwest
Mon, Mar 30 - Fri, Apr 3
Frontier Logo
8:20 pm - 11:19 am
SJC
-
STL
12h 59m
1 stop
Frontier Logo
8:16 pm - 6:47 pm
STL
-
SJC
24h 31m
2 stops
$314Frontier
Tue, Mar 31 - Wed, Apr 1
Southwest Logo
7:40 am - 6:00 pm
SJC
-
STL
8h 20m
1 stop
Southwest Logo
6:20 am - 10:25 am
STL
-
SJC
6h 05m
1 stop
$317Southwest
Wed, Apr 22 - Tue, Apr 28
Southwest Logo
11:25 am - 9:45 pm
SJC
-
STL
8h 20m
2 stops
Southwest Logo
1:45 pm - 6:15 pm
STL
-
SJC
6h 30m
1 stop
$318Southwest
Wed, May 13 - Wed, May 20
Delta Logo
5:45 pm - 8:46 am
SJC
-
STL
13h 01m
2 stops
Delta Logo
1:56 pm - 9:40 pm
STL
-
SJC
9h 44m
1 stop
$321Delta
Tue, Mar 31 - Tue, Mar 31
Southwest Logo
6:25 am - 2:35 pm
SJC
-
STL
6h 10m
1 stop
Southwest Logo
4:05 pm - 11:10 pm
STL
-
SJC
9h 05m
2 stops
$322Southwest
Booking Insights

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to St. Louis, 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 San Jose to St. Louis is September, where tickets cost $345 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $533 and $474 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Jose to St. Louis, 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 San Jose to St. Louis, you should book around 3 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from San Jose to St. Louis

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Bill Fink

Bill Fink

Expert on SJC

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Good to know

Low seasonJanuary
Cheapest flight$151
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from San Jose to St. Louis

When to book flights from San Jose to St. Louis

Are your dates flexible? Find out the best times to travel from San Jose to St. Louis 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 San Jose to St. Louis

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

    In the last 3 days, the lowest price for a flight from San Jose to St. Louis was $141 for a one-way ticket and $291 for a round-trip.

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

    No, a passport isn't needed to fly from San Jose to St. Louis. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from San Jose to St. Louis?

    On your way to St. Louis, you’ll fly out from San Jose. You’ll be landing at Lambert-St Louis.

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

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

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

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the San Jose to St. Louis flight route.

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

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

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

    The two airlines most popular with KAYAK users for flights from San Jose to St. Louis are Southwest and Delta. With an average price for the route of $420 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $378 and an overall rating of 7.9.

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

    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 San Jose to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from San Jose 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 San Jose to St. Louis?

    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 St. Louis with an airline and back to San Jose with another airline. Booking your flights between San Jose and STL 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 San Jose to St. Louis?

    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 St. Louis from San Jose up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from San Jose to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from San Jose to St. Louis. 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 San Jose to St. Louis? 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 4317 reviews
7.5Entertainment
8.0Comfort
7.0Food
8.6Crew
8.1Boarding
Airline reviews

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

8.0 ExcellentTobin, Mar 2026
SJC - BUR
Read more Southwest reviews

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

Great plane, great attendants,great flight crew,on time. Wonderful flight home..

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Everything went smoothly and we even arrived a little bit early.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

We departed early and made up time in the air allowing us to arrive 30 minutes early. Capt was incredibly genuine and thanked every passenger for flying with Delta. Completely humble and professional!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Airport terminal was outdated, flight was on a small jet with no wifi

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was really crowded. Flight attendants were just ok.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

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

Information on your arrival and departure airports