SAN - STL

$54 Find Cheap Flights from San Diego 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 Diego to St. Louis departing on 1/23. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego 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 Diego to St. Louis, as well as popular online travel agencies
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Cheap Flight Deals from San Diego to St. Louis (SAN-STL)

 
These are the cheapest deals for flights from San Diego to St. Louis currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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 San Diego to St. Louis

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from San Diego to St. Louis.

Recent one-way flight deals from San Diego to St. Louis

Only flying one-way? Below are some of the best one-way flight deals from San Diego to St. Louis found on KAYAK recently.

Recent last minute flight deals from San Diego to St. Louis

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from San Diego to St. Louis.

Recent direct flight deals from San Diego to St. Louis

The latest deals for direct flights from San Diego to St. Louis so you can sit back and relax without the need for a layover.

Cheap bus & train deals from San Diego to St. Louis

Find recent round-trip train or bus tickets from San Diego to St. Louis.

All round-trip flight deals to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:35 am - 7:34 pmSAN-STL
6h 59m1 stop
6:49 pm - 11:54 pmSTL-SAN
7h 05m1 stop
$128Frontier
Find Deal
Thu, Dec 5 - Wed, Dec 18
3:38 pm - 8:13 amSAN-STL
14h 35m1 stop
6:46 pm - 12:38 pmSTL-SAN
19h 52m1 stop
$138Frontier
Find Deal
Thu, Dec 5 - Mon, Dec 9
12:00 pm - 9:55 pmSAN-STL
7h 55m1 stop
6:30 am - 2:27 pmSTL-SAN
9h 57m1 stop
$276Delta
Find Deal
Wed, Dec 4 - Tue, Dec 10
12:00 pm - 10:26 pmSAN-STL
8h 26m1 stop
6:06 am - 10:32 amSTL-SAN
6h 26m1 stop
$337American Airlines
Find Deal
Fri, Apr 4 - Mon, Apr 7
1:30 pm - 11:50 pmSAN-STL
8h 20m1 stop
6:09 am - 10:31 amSTL-SAN
6h 22m1 stop
$338American Airlines
Find Deal
Thu, May 8 - Sun, May 11
12:12 pm - 8:51 pmSAN-STL
6h 39m1 stop
1:39 pm - 7:53 pmSTL-SAN
8h 14m2 stops
$371United Airlines
Find Deal
Wed, Dec 4 - Tue, Dec 10
6:15 am - 8:41 pmSAN-STL
12h 26m2 stops
10:10 am - 7:53 pmSTL-SAN
11h 43m2 stops
$376United Airlines
Find Deal
Wed, Dec 4 - Tue, Dec 10
1:50 pm - 9:20 pmSAN-STL
5h 30m1 stop
8:05 pm - 10:05 pmSTL-SAN
4h 00mnonstop
$419Southwest
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Thu, Dec 12 - Sun, Dec 15
10:45 am - 6:35 pmSAN-STL
5h 50m1 stop
3:00 pm - 4:55 pmSTL-SAN
3h 55mnonstop
$445Southwest
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Fri, Apr 18 - Mon, Apr 21
1:04 pm - 10:06 pmSAN-STL
7h 02m1 stop
6:04 am - 11:22 amSTL-SAN
7h 18m1 stop
$726Delta
Find Deal
Mon, Dec 23 - Fri, Dec 27
10:40 am - 7:31 pmSAN-STL
6h 51m1 stop
$54Frontier
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Thu, Jan 23
3:46 pm - 11:10 amSAN-STL
17h 24m1 stop
$62Frontier
Find Deal
Sat, Jan 4
6:25 am - 9:16 amSAN-STL
24h 51m1 stop
$65Frontier
Find Deal
Tue, Jan 21
4:30 pm - 11:57 pmSAN-STL
5h 27m1 stop
$109American Airlines
Find Deal
Mon, Jan 20
5:10 pm - 1:05 amSAN-STL
5h 55m1 stop
$138Delta
Find Deal
Wed, Dec 18
10:15 am - 8:43 pmSAN-STL
8h 28m2 stops
$143United Airlines
Find Deal
Tue, Jan 21
6:15 am - 6:02 pmSAN-STL
9h 47m1 stop
$158Delta
Find Deal
Tue, Feb 18
8:05 pm - 9:56 amSAN-STL
11h 51m2 stops
$171United Airlines
Find Deal
Sat, Jan 4
8:45 am - 2:10 pmSAN-STL
3h 25mnonstop
$195Southwest
Find Deal
Sat, Jan 25
6:50 am - 12:15 pmSAN-STL
3h 25mnonstop
$210Southwest
Find Deal
Mon, Jan 20
9:06 pm - 9:17 pmSAN-STL
22h 11m1 stop
9:34 am - 11:56 pmSTL-SAN
16h 22m1 stop
$332Frontier
Find Deal
Mon, Nov 25 - Wed, Nov 27
7:08 pm - 12:06 amSAN-STL
26h 58m1 stop
5:38 pm - 11:56 pmSTL-SAN
8h 18m1 stop
$374Frontier
Find Deal
Sun, Nov 24 - Tue, Nov 26
5:35 pm - 4:25 pmSAN-STL
20h 50m3 stops
1:00 pm - 6:02 pmSTL-SAN
31h 02m3 stops
Mon, Nov 25 - Wed, Nov 27
5:24 pm - 4:26 pmSAN-STL
21h 02m2 stops
1:00 pm - 6:02 pmSTL-SAN
31h 02m3 stops
Mon, Nov 25 - Wed, Nov 27
8:59 pm - 11:59 pmSAN-STL
25h 00m2 stops
7:00 am - 11:31 pmSTL-SAN
18h 31m2 stops
$921Alaska Airlines
Find Deal
Mon, Nov 25 - Wed, Nov 27
6:15 am - 4:32 pmSAN-STL
8h 17m2 stops
7:09 am - 6:32 pmSTL-SAN
13h 23m1 stop
$977United Airlines
Find Deal
Mon, Nov 25 - Fri, Nov 29
7:45 am - 4:38 pmSAN-STL
6h 53m1 stop
6:30 am - 2:53 pmSTL-SAN
10h 23m2 stops
$996United Airlines
Find Deal
Mon, Nov 25 - Fri, Nov 29
4:45 pm - 11:50 pmSAN-STL
5h 05m1 stop
8:55 pm - 10:55 pmSTL-SAN
4h 00mnonstop
$998Southwest
Find Deal
Mon, Nov 25 - Wed, Nov 27
8:59 pm - 11:59 pmSAN-STL
25h 00m2 stops
6:17 am - 7:43 amSTL-SAN
27h 26m2 stops
$1,054Alaska Airlines
Find Deal
Sun, Nov 24 - Tue, Nov 26
4:45 pm - 11:50 pmSAN-STL
5h 05m1 stop
6:30 am - 8:35 amSTL-SAN
4h 05mnonstop
$1,115Southwest
Find Deal
Sun, Nov 24 - Tue, Nov 26
6:25 pm - 11:55 pmSAN-STL
3h 30mnonstop
8:55 pm - 10:55 pmSTL-SAN
4h 00mnonstop
$839Southwest
Find Deal
Sat, Dec 21 - Mon, Dec 30

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 Tuesday 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 Sundays.

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 August, where tickets cost $256 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $465 and $426 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 66 days before departure.

Good to know

Low season

January

High season

June

Cheapest flight

$54
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 7% increase in price.
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 $54 for a one-way ticket and $128 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 airlines offer Wi-Fi service onboard planes from San Diego to St. Louis?

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

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

    The Boeing 737-700 Passenger/BBJ1 (winglets) 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, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Diego to St. Louis are Southwest and Delta. With an average price for the route of $476 and an overall rating of 8.1, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $316 and an overall rating of 8.0.

  • 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

KAYAK’s top tips for finding a cheap flight from San Diego to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $213 or less one-way and $441 or less round-trip.
  • 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 Airport to Lambert-St Louis Airport, 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.
8.1
SouthwestOverall score based on 5015 reviews
8.7Crew
8.1Comfort
8.2Boarding
7.2Food
7.7Entertainment
Airline reviews

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

10.0 ExcellentJohn, Nov 2024OAK - LAS
Read more Southwest reviews

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

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

I used to fly SWA all the time. I know the crew has their little acts that are often fun, and entertaining. On this flight one of the crew was just not nice. Very surprising.

The plane arrived 25 minutes late, and the Wi-Fi was slower than it usually is.

Forget beverage, they didn't even have water for half the passangers?

Can not wait for seating change to reduce the amount of pre boards - it’s disheartening the abuse. And then then deplaning

If your boarding Military, it should be with ore board, and with my spouse, so rude and stupid to not let us board together and before a group. All the other airlines clearly understand Military courtesy, this is why I Rarely fly SWA and Always fly Alaska

Excellent. The lady boarding the flight was awesome. Very efficient, and she got everyone on line.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

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.

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Seats are outdated. Entertainment relies on personal device. Boarding was delayed due to inaccurate passenger tracking, resulted in late arrival at Reno.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

The crew and flight was amazing. I haven't flown United in years but plan to switch to you being my main airline

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

I am not an electronic savy. I don't know how to maneuver the APPS for services. Why can't I just buy food without the apps.

This was a short flight with no food. The attendants were great but the comfort was poor: just to cramped. The flight from Denver to Frankfort was excellent! Seating was roomier, food was good, service was good. This was a great experience.

It was as expected for such a short flight. No complaints

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

I had a TERRIBLE experience with the AA crew. I believe it was disability-related. It’s unlikely I will fly AA again.

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

The flight was uneventful. What was a problem was I was delayed getting home one entire day because the flight from Sacramento was delayed. That made getting to my connecting flight impossible. I had to stay another night at the hotel and incur that expense as a result.

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

Seats were very uncomfortable. I paid extra for a seat with more leg room, the seat was no different than a seat at the back of the plane. Flight attendant was rude.

Flights were on time. That's the main consideration since I had to change planes. The entertainment was whatever you bring with you and the food (in Economy) is non-existant. Neither of those was a surprise.

Mobility assistance at DFW is A JOKE!!! Totally disorganized, ineffective and annoying. Ended up having to walk and find our own way for a good part of the very, very long walk between gates. Worst assistance I have ever experienced.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

Most horrible airlines. Please avoid it. It's ok to spend $50 extra for delta, united or Alaska

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

Staff members pretty horrible when boarding. No care for customers

The trip was good but the last minute changes I didn’t like because I had already talked to the attendee and they didn’t help me with my ticket I was having trouble checking in and when the time was up they help me but charge me for that and last minute luggage it was a small bag. After I was in the airplane I realized you were charging because the flight was almost empty and you have to get the money some how. Thanks for everything.

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.
1/23Thu
1 stopFrontier
6h 51mSAN-STL
$54
1/4Sat
1 stopFrontier
17h 24mSAN-STL
$62
1/21Tue
1 stopFrontier
24h 51mSAN-STL
$65
1/20Mon
1 stopAmerican Airlines
5h 27mSAN-STL
$109
12/18Wed
1 stopDelta
5h 55mSAN-STL
$138
1/21Tue
2 stopsUnited Airlines
8h 28mSAN-STL
$143
2/18Tue
1 stopDelta
9h 47mSAN-STL
$158
1/4Sat
2 stopsUnited Airlines
11h 51mSAN-STL
$171
1/25Sat
nonstopSouthwest
3h 25mSAN-STL
$195
1/20Mon
nonstopSouthwest
3h 25mSAN-STL
$210

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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.
11/25Mon
multi-stopFrontier
22h 11mSAN-STL
11/27Wed
multi-stopFrontier
16h 22mSTL-SAN
$332
11/24Sun
multi-stopFrontier
26h 58mSAN-STL
11/26Tue
multi-stopFrontier
8h 18mSTL-SAN
$374
11/25Mon
multi-stop
20h 50mSAN-STL
11/27Wed
multi-stop
31h 02mSTL-SAN
$695
11/25Mon
multi-stop
21h 02mSAN-STL
11/27Wed
multi-stop
31h 02mSTL-SAN
$754
11/25Mon
multi-stopAlaska Airlines
25h 00mSAN-STL
11/27Wed
multi-stopAlaska Airlines
18h 31mSTL-SAN
$921
11/25Mon
multi-stopUnited Airlines
8h 17mSAN-STL
11/29Fri
multi-stopUnited Airlines
13h 23mSTL-SAN
$977
11/25Mon
multi-stopUnited Airlines
6h 53mSAN-STL
11/29Fri
multi-stopUnited Airlines
10h 23mSTL-SAN
$996
11/25Mon
multi-stopSouthwest
5h 05mSAN-STL
11/27Wed
nonstopSouthwest
4h 00mSTL-SAN
$998
11/24Sun
multi-stopAlaska Airlines
25h 00mSAN-STL
11/26Tue
multi-stopAlaska Airlines
27h 26mSTL-SAN
$1,054
11/24Sun
multi-stopSouthwest
5h 05mSAN-STL
11/26Tue
nonstopSouthwest
4h 05mSTL-SAN
$1,115

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

Information on your arrival and departure airports

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