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SAN - STL

Find cheap flights from San Diego to St. Louis from $55

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 Diego to St. Louis departing on 5/23. 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
0 bags
Sun 5/26
Sun 6/2

Search 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 Diego to St. Louis.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to St. Louis.
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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

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Cheap flight deals from San Diego to St. Louis (SAN-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego 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 and deals for you by selecting your travel dates.
Choose your dates
6:26 pm - 10:46 amSAN-STL
14h 20m1 stop
7:51 pm - 3:05 pmSTL-SAN
21h 14m1 stop
Tue, May 7 - Fri, May 10
8:00 pm - 10:46 amSAN-STL
12h 46m1 stop
10:59 pm - 7:54 amSTL-SAN
10h 55m1 stop
Tue, May 7 - Sun, May 12
8:21 pm - 10:13 amSAN-STL
11h 52m1 stop
11:22 pm - 7:04 amSTL-SAN
9h 42m1 stop
$135Frontier
Find Deal
Fri, May 17 - Sun, May 19
7:58 pm - 3:14 pmSAN-STL
17h 16m1 stop
4:05 pm - 9:14 amSTL-SAN
19h 09m1 stop
$141Spirit Airlines
Find Deal
Thu, May 30 - Mon, Jun 3
2:08 pm - 10:06 pmSAN-STL
5h 58m1 stop
11:22 pm - 7:04 amSTL-SAN
9h 42m1 stop
$151Frontier
Find Deal
Thu, May 23 - Sun, May 26
6:26 pm - 10:46 amSAN-STL
14h 20m1 stop
6:19 pm - 5:02 pmSTL-SAN
24h 43m3 stops
$223Spirit Airlines
Find Deal
Tue, May 7 - Sun, May 12
11:54 am - 11:22 pmSAN-STL
9h 28m1 stop
5:55 am - 10:43 amSTL-SAN
6h 48m1 stop
$234American Airlines
Find Deal
Sat, May 25 - Sat, Jun 1
10:00 am - 7:28 pmSAN-STL
7h 28m2 stops
5:55 am - 10:43 amSTL-SAN
6h 48m1 stop
$342American Airlines
Find Deal
Sat, May 25 - Sat, Jun 1
6:49 pm - 2:23 pmSAN-STL
17h 34m2 stops
6:00 am - 11:51 amSTL-SAN
7h 51m1 stop
$587United Airlines
Find Deal
Fri, May 17 - Sun, May 19
7:18 pm - 9:59 amSAN-STL
12h 41m2 stops
4:51 pm - 10:32 pmSTL-SAN
7h 41m1 stop
$589United Airlines
Find Deal
Tue, May 7 - Fri, May 10

Flights from San Diego to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from San Diego to St. Louis 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 San Diego to St. Louis?

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from San Diego 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 Diego to St. Louis is February, where tickets cost $365 on average. On the other hand, the most expensive months are March and November, where the average cost of tickets is $511 and $475 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from San Diego to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from San Diego to St. Louis, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 40 days before departure.

Which airlines provide the cheapest flights from San Diego to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Frontier ($55) and Spirit Airlines ($57). The cheapest round-trip tickets were found on Frontier ($135) and Spirit Airlines ($141).

How many flights are there between San Diego and St. Louis per day?

Each day, there are between 1 and 2 nonstop flights that take off from San Diego and land in St. Louis, with an average flight time of 3h 32m. The most common departure time is 5:00 pm and most flights take off in the morning. Each week, there are 13 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

What’s the earliest departure time from San Diego to St. Louis?

Early birds can take the earliest flight from San Diego at 7:55 am and will be landing in St. Louis at 1:35 pm.

What’s the latest departure time from San Diego to St. Louis?

If you prefer to fly at night, the latest flight from San Diego to St. Louis jets off at 5:35 pm and lands at 11:05 pm.

Good to know

Low season

February

High season

December

Cheapest flight

$55
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from San Diego to St. Louis

When to book flights from San Diego to St. Louis

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

  • What type of flights are offered from SAN to STL?

    The are 1-stop and 2-stop layover flights from SAN to STL often operated by Delta, Frontier, and American Airlines. The common layover cities include Las Vegas, Salt Lake City, Dallas, Chicago, and Atlanta. Direct flights are seldom offered from SAN to STL but you can get a few operated by Southwest Airlines.

  • Is there a Lost & Found Section at STL?

    There is a Lost & Found section maintained by the St. Louis Airport Police Department. Additionally, lost items are also recovered by the Transportation Security Administration (TSA) and if you wish to make an inquiry, do so between Monday and Friday. It’s also recommended to contact your airline for inquiries.

  • Is there a Car Rental Service at STL?

    To get to the car rental station, board the Enterprise Bus at the pick-up spot situated outside the baggage claim area. Here you’ll be assisted at the counter to get the rental agreement and vehicle keys but you may also find self-service stations for quick and easy rental transactions.

  • What are the travel options from STL to the city center?

    Aside from the Car Rental Service, other travel options to choose from include taking a taxi, a ride app, the MetroLink, or the bus service. The taxi zones are located at Terminal 1 Exit 14 and Terminal 2 Exit 12. The Ride App pick up zones are at Terminal 1 Exit 6 and Terminal 2 Exit 15. The MetroLink stations are at Terminal 1 Exit 1 and Terminal 2 Exit 12. Lastly, the Bus Port is located to the South of Terminal 1.

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

    In the last 3 days, the lowest price for a flight from San Diego to St. Louis was $55 for a one-way ticket and $104 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    When flying out of San Diego you will be using San Diego. You will be landing at St. Louis, also known as Lambert-St Louis.

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Diego to St. Louis flight route.

  • On which days can I fly direct from San Diego to St. Louis?

    There are nonstop flights from San Diego to St. Louis on a daily basis.

  • Which is the best airline for flights from San Diego to St. Louis, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Diego to St. Louis are Alaska Airlines and United Airlines. With an average price for the route of $549 and an overall rating of 8.0, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $452 and an overall rating of 7.4.

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

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego 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 Diego 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 Diego 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 Diego with another airline. Booking your flights between San Diego 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 Diego 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 Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from SAN to St. Louis

  • For travelers with disabilities, San Diego International Airport (SAN) offers a variety of accessibility features including parking, TDD telephones, wheelchair services, visual paging monitors, courtesy carts, and reasonable accommodation upon request.
  • SAN and St. Louis Lambert International Airport (STL) each have 3 lactation rooms for nursing mothers. All the lactation rooms are equipped with comfortable seating, power outlets, and sinks. The Lactation Suites at STL are near Gate A10, near Gate C9, and near Gate E33. The Lactation rooms at SAN are located at Terminal 1 East Rotunda, Terminal 1 West Rotunda, and Terminal 2 West.
  • Both SAN and STL have USO Lounges providing an assortment of complimentary services to active members of the military and their families at no extra cost. The USO Lounge at SAN is located on the East Floor of Terminal 2 landside whereas STL has 2 USO Lounges located on the lower level of the Terminal 1 landside and near the baggage claim area at Terminal 2 landside.
  • In addition to the Volunteer Airport Ambassador team, SAN has a program known as ‘Ready, Pet, Go’ where trained therapy dogs offer relief and comfort to travelers under stress and anxiety. These friendly pups are paired with Volunteer Airport Ambassadors who act as additional eyes for safety and also offer additional airport information.
  • There is a children’s playground officially known as The St. Louis International Play Port which offers a pretend airport experience with a kid-sized plane, an airport screening area, a traffic control tower which has a slide and other amazing features. It is located within the C Concourse near Gate C3.
See more tips

Prefer to fly non-stop from San Diego to St. Louis?

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

Nonstop departures

San Diego to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Nonstop returns

Lambert-St Louis to San Diego

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights
See more direct flights

Top 5 airlines serving from San Diego to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from San Diego 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 Diego 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
DeltaOverall score based on 10975 reviews
7.4food
8.2boarding
8.0entertainment
7.9comfort
8.6crew
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

On 2 different flights the wifi was horrible and there was no drink or snack service.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

There was no FREE wi-fi nor entertainment screens at all.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

For a 22 minute flight all you expect is for it to be safe and comfortable

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Wouldn’t let me check in said couldn’t find a ticket had to wait very long Time

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

Flight delayed, boarding time kept changing, not good. Nee firm information given each time.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

Flight From PHX to CVG was on time, very professional staff

what I like about Spirit is that the pilot and crew are good communicators. The plane itself - well, its a budget airline and you get what is expected, But I generally just feel safer, somehow, when I know more about what is going on - and Spirit has always done a good job of telling me what is going on: why the delay, why the turbulence, why this and that... and that means a lot to me.

I paid just under 200 for flight and luggage, then paid 200 to change the flight, then paid 100 for a carry on. Then the cancelled the flight. Of the 500 I spent they refunded 250. I bought a delta flight for 270 never flew with spirit, but spirit kept 250, not even refunding the 100 for the carry on though they cancelled the flight (for weather on a day with only a slight rain ).

Flight was canceled. Knew there was weather, and were notified of 20 min delayed, and then suddenly canceled. Next reschedule was for 2 days. No help other than to refund. Thankfully full refund and appreciate that. I appreciate discounted airline but felt they could've done more for customer inconvenience.

Flying on Spirit Airline is a penny-pinching beat down.

Kayak does not know that spirit airlines charged me $70 to fly. But the bag check-in was $89 each way. This is false advertising to lure people. Spirit airlines sends bunch of emails after flight purchases to buy wifi, better seats, priority boarding, secure reserved seats. This is false advertising. Up front pricing. I would of flown jet blue or Alaska airlines.

One hour late taking off. Concerning, very hard landing. Uncomfortable seats with no recline. Extremely slow baggage claim. Very professional, knowledgeable flight attendants. Brand new, very clean plane.

Can’t say there was anything I particularly liked. Seats were very tight, leather wrapped plastic. I followed up a much longer and cheaper trip from Honolulu on southwest, everything was phenomenal, this flight was the exact opposite. Blows my mind they charge for water of all things. One of the attendants seemed very rude, I watched a taller gentleman a couple rows forward with his knees pressed into the back of the seat ahead, while the woman in that seat leaned forward the entire flight, I’m sure because she could feel his knees. I’ll be avoiding spirit like the plague from here forward.

Didn’t make the connecting flight due to a delay on our first flight.

I felt scam to have to pay $50 additional for my carry on luggage which was free for my other airline.

Enjoyed the experience, on time flights, friendly staff the WiFi was intros d kept cutting out.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

My first time to fly Frontier and loved it! Boarding was super easy as we only had personal items. Crew was helpful and funny and the plane was clean. Pilot was also great at landing the plane smoothly.

Book cheap flights from San Diego to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Diego to St. Louis found on KAYAK in the last 72 hours.
5/23Thu
1 stopFrontier
5h 58mSAN-STL
$55
6/4Tue
1 stopSpirit Airlines
11h 33mSAN-STL
$57
6/4Tue
3 stops
26h 19mSAN-STL
$140
5/23Thu
2 stops
19h 12mSAN-STL
$169
5/13Mon
2 stopsUnited Airlines
12h 49mSAN-STL
$304
5/1Wed
2 stopsAmerican Airlines
7h 31mSAN-STL
$329
7/8Mon
2 stopsAlaska Airlines
12h 40mSAN-STL
$364
5/5Sun
2 stopsAlaska Airlines
14h 39mSAN-STL
$374
6/29Sat
2 stopsAmerican Airlines
11h 02mSAN-STL
$384
6/22Sat
1 stopUnited Airlines
24h 19mSAN-STL
$647

Search by stops

Search by airline

Search by price

Last minute flights from San Diego to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Diego to St. Louis that are departing in the next 10 days.
5/1Wed
multi-stopFrontier
16h 31mSAN-STL
5/5Sun
multi-stopFrontier
18h 54mSTL-SAN
$163
4/30Tue
multi-stopFrontier
20h 44mSAN-STL
5/1Wed
multi-stopFrontier
21h 38mSTL-SAN
$219
4/27Sat
multi-stopFrontier
11h 04mSAN-STL
4/28Sun
multi-stopFrontier
10h 55mSTL-SAN
$256
5/1Wed
multi-stop
20h 19mSAN-STL
5/5Sun
multi-stop
12h 22mSTL-SAN
$436
4/30Tue
multi-stop
5h 50mSAN-STL
5/1Wed
multi-stop
16h 18mSTL-SAN
$454
5/1Wed
multi-stop
20h 19mSAN-STL
5/5Sun
multi-stop
25h 55mSTL-SAN
$482
5/1Wed
multi-stop
13h 39mSAN-STL
5/5Sun
multi-stop
12h 22mSTL-SAN
$523
4/30Tue
multi-stopUnited Airlines
14h 54mSAN-STL
5/1Wed
multi-stopUnited Airlines
17h 18mSTL-SAN
$696
4/27Sat
multi-stopAlaska Airlines
7h 59mSAN-STL
4/28Sun
multi-stopAlaska Airlines
26h 38mSTL-SAN
$727
4/27Sat
multi-stopUnited Airlines
8h 14mSAN-STL
4/28Sun
multi-stopUnited Airlines
11h 28mSTL-SAN
$748

Search by stops

Search by airline

Search by price

San Diego - St. Louis Flights

Departure:

San Diego (SAN)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - San Diego

Cabin classes:

$635