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Cheap flights from San Diego to St. Louis from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to St. Louis departing on 1/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Diego to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from San Diego to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from San Diego to St. Louis.

Cheap last minute flights

Planning a quick getaway from San Diego to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

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.
2:32 pm - 9:16 amSAN-STL
16h 44m1 stop
6:53 pm - 12:20 amSTL-SAN
7h 27m1 stop
$118Frontier
Find Deal
Tue, Feb 11 - Sat, Feb 15
6:25 am - 9:16 amSAN-STL
24h 51m1 stop
6:53 pm - 12:20 amSTL-SAN
7h 27m1 stop
$124Frontier
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Thu, Feb 13 - Sat, Feb 15
4:35 pm - 12:06 amSAN-STL
5h 31m1 stop
6:00 pm - 11:40 pmSTL-SAN
7h 40m1 stop
$247American Airlines
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Mon, Dec 30 - Mon, Jan 6
1:32 pm - 9:33 pmSAN-STL
6h 01m1 stop
5:00 pm - 11:58 pmSTL-SAN
8h 58m1 stop
$276Delta
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Wed, Feb 12 - Tue, Feb 18
10:15 am - 8:43 pmSAN-STL
8h 28m2 stops
4:30 pm - 9:33 pmSTL-SAN
7h 03m1 stop
$281United Airlines
Find Deal
Wed, Feb 12 - Sun, Feb 16
10:15 am - 8:43 pmSAN-STL
8h 28m2 stops
1:45 pm - 7:53 pmSTL-SAN
8h 08m2 stops
$286United Airlines
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Tue, Jan 21 - Fri, Jan 24
12:05 pm - 10:12 pmSAN-STL
8h 07m1 stop
5:00 pm - 11:58 pmSTL-SAN
8h 58m1 stop
$337Delta
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Thu, Feb 13 - Tue, Feb 18
1:30 pm - 11:50 pmSAN-STL
8h 20m1 stop
6:09 am - 10:31 amSTL-SAN
6h 22m1 stop
$338American Airlines
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Thu, May 8 - Sun, May 11
9:30 am - 2:55 pmSAN-STL
3h 25mnonstop
5:35 am - 9:10 amSTL-SAN
5h 35m1 stop
$343Southwest
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Tue, Feb 11 - Sun, Feb 16
6:50 am - 12:20 pmSAN-STL
3h 30mnonstop
8:30 am - 12:40 pmSTL-SAN
6h 10m1 stop
$383Southwest
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Mon, Dec 30 - Mon, Jan 6
10:40 am - 7:31 pmSAN-STL
6h 51m1 stop
$54Frontier
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Thu, Jan 23
10:40 am - 7:31 pmSAN-STL
6h 51m1 stop
$59Frontier
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Thu, Jan 30
4:30 pm - 11:57 pmSAN-STL
5h 27m1 stop
$109American Airlines
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Mon, Jan 20
5:10 pm - 1:05 amSAN-STL
5h 55m1 stop
$138Delta
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Wed, Dec 18
10:15 am - 8:43 pmSAN-STL
8h 28m2 stops
$143United Airlines
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Tue, Jan 21
6:15 am - 6:02 pmSAN-STL
9h 47m1 stop
$158Delta
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Tue, Feb 18
3:36 pm - 12:28 amSAN-STL
6h 52m1 stop
$163United Airlines
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Fri, Dec 27
8:45 am - 2:10 pmSAN-STL
3h 25mnonstop
$195Southwest
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Sat, Jan 25
6:50 am - 12:15 pmSAN-STL
3h 25mnonstop
$210Southwest
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Mon, Jan 20
9:58 am - 7:30 pmSAN-STL
7h 32m2 stops
$218American Airlines
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Tue, Dec 24
9:06 pm - 9:17 pmSAN-STL
22h 11m1 stop
9:34 am - 11:56 pmSTL-SAN
16h 22m1 stop
$354Frontier
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Mon, Nov 25 - Wed, Nov 27
6:25 am - 12:06 amSAN-STL
15h 41m1 stop
5:38 pm - 11:56 pmSTL-SAN
8h 18m1 stop
$374Frontier
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Sun, Nov 24 - Tue, Nov 26
8:38 am - 12:06 amSAN-STL
13h 28m1 stop
1:34 pm - 7:33 amSTL-SAN
19h 59m1 stop
$418Frontier
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Fri, Nov 22 - Sun, Nov 24
12:25 pm - 4:25 pmSAN-STL
26h 00m3 stops
5:21 pm - 8:45 amSTL-SAN
17h 24m2 stops
Sat, Nov 23 - Tue, Nov 26
5:35 pm - 3:30 pmSAN-STL
19h 55m3 stops
1:00 pm - 6:02 pmSTL-SAN
31h 02m3 stops
Mon, Nov 25 - Wed, Nov 27
6:57 pm - 4:26 pmSAN-STL
19h 29m2 stops
5:21 pm - 8:45 amSTL-SAN
17h 24m2 stops
$764Spirit Airlines
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Sat, Nov 23 - Tue, Nov 26
7:45 pm - 4:37 pmSAN-STL
18h 52m2 stops
4:54 pm - 9:45 pmSTL-SAN
6h 51m1 stop
$875United Airlines
Find Deal
Mon, Nov 25 - Fri, Nov 29
6:15 am - 4:32 pmSAN-STL
8h 17m2 stops
7:09 am - 6:32 pmSTL-SAN
13h 23m1 stop
$977United Airlines
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Mon, Nov 25 - Fri, Nov 29
4:45 pm - 11:50 pmSAN-STL
5h 05m1 stop
6:30 am - 8:35 amSTL-SAN
4h 05mnonstop
$1,075Southwest
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Mon, Nov 25 - Wed, Nov 27
4:45 pm - 11:50 pmSAN-STL
5h 05m1 stop
6:30 am - 8:35 amSTL-SAN
4h 05mnonstop
$1,115Southwest
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Sun, Nov 24 - Tue, Nov 26
6:50 am - 12:20 pmSAN-STL
3h 30mnonstop
11:00 am - 1:00 pmSTL-SAN
4h 00mnonstop
$491Southwest
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Mon, Dec 30 - Mon, Jan 6
9:00 am - 2:30 pmSAN-STL
3h 30mnonstop
8:05 pm - 10:05 pmSTL-SAN
4h 00mnonstop
$586Southwest
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Thu, Dec 12 - Sun, Dec 15
6:25 pm - 11:55 pmSAN-STL
3h 30mnonstop
8:55 pm - 10:55 pmSTL-SAN
4h 00mnonstop
$839Southwest
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Sat, Dec 21 - Mon, Dec 30
6:25 pm - 11:55 pmSAN-STL
3h 30mnonstop
7:00 pm - 9:00 pmSTL-SAN
4h 00mnonstop
$870Southwest
Find Deal
Sat, Dec 21 - Sat, Dec 28

American Airlines flights from San Diego to St. Louis

Our best American Airlines deals on San Diego to St. Louis flight tickets
American Airlines
Dec 30
SAN4:35 pmSan Diego
5h 31m
1 stop
STL12:06 amLambert-St Louis
Jan 6
STL6:00 pmLambert-St Louis
7h 40m
1 stop
SAN11:40 pmSan Diego
American Airlines
May 8
SAN1:30 pmSan Diego
8h 20m
1 stop
STL11:50 pmLambert-St Louis
May 11
STL6:09 amLambert-St Louis
6h 22m
1 stop
SAN10:31 amSan Diego
American Airlines
Feb 9
SAN4:30 pmSan Diego
5h 29m
1 stop
STL11:59 pmLambert-St Louis
Feb 13
STL11:25 amLambert-St Louis
6h 37m
1 stop
SAN4:02 pmSan Diego

Frontier flights from San Diego to St. Louis

Our best Frontier deals on San Diego to St. Louis flight tickets
Frontier
Feb 11
SAN2:32 pmSan Diego
16h 44m
1 stop
STL9:16 amLambert-St Louis
Feb 15
STL6:53 pmLambert-St Louis
7h 27m
1 stop
SAN12:20 amSan Diego
Frontier
Feb 13
SAN6:25 amSan Diego
24h 51m
1 stop
STL9:16 amLambert-St Louis
Feb 15
STL6:53 pmLambert-St Louis
7h 27m
1 stop
SAN12:20 amSan Diego
Frontier
Dec 5
SAN10:35 amSan Diego
6h 59m
1 stop
STL7:34 pmLambert-St Louis
Dec 18
STL6:49 pmLambert-St Louis
7h 05m
1 stop
SAN11:54 pmSan Diego

See travel insights to St. Louis from

How to get the cheapest flight ticket from San Diego to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from San Diego to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $256. The month of May is another great option to travel to St. Louis, with average flight prices from San Diego averaging around $261.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $313. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $446. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from San Diego in the evening is the least expensive time of day to depart. momondo users have found prices as low as $199 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $380 per ticket.

What is the cheapest San Diego to Lambert-St Louis flight route?

Fly from San Diego to Lambert-St Louis for the best San Diego - Lambert-St Louis flight prices

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

The best time to book a flight to St. Louis from San Diego is 47 days out, which is when prices tend to be around $352. In the past 72 hours, momondo users found flights from San Diego to St. Louis for as low as $210.

What cabin class options are available on San Diego to Lambert-St Louis flights?

There are 1 cabin classes available to choose from on San Diego to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Diego to St. Louis flights?

You could potentially save up to 75% on your flight if you consider stops on a San Diego to St. Louis flight.

How have San Diego to St. Louis flight prices changed over time?

As of November 2024, prices for San Diego to St. Louis flights are approximately 9% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to St. Louis (SAN to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to St. Louis

Best Price Found

$54

Fastest flight time

3h 25m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from San Diego in the past 72 hours is $54. The best round-trip flight deal from San Diego to St. Louis found on momondo in the last 72 hours is $118.
The fastest flight from San Diego to St. Louis takes 3h 25m
Direct flights go from San Diego to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is San Diego to Lambert-St Louis by plane?

    Lambert-St Louis is 1560.0 mi away from San Diego. 3h 25m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Diego Airport to Lambert-St Louis Airport?

    Prices for flights from San Diego Airport to Lambert-St Louis Airport refresh daily.

  • How many operators does momondo search for flights from San Diego Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from San Diego Airport to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Diego to St. Louis?

  • What is the most popular airline from San Diego to St. Louis?


Best airlines flying from San Diego to St. Louis

Compare and see reviews for airlines that fly from San Diego to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $110Free CancellationRating
6.1
3,536 reviews
Search Frontier flights
DeltaPriceFrom $219Free CancellationRating
8.0
8,755 reviews
Search Delta flights
American AirlinesPriceFrom $235Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights
SouthwestPriceFrom $338Free CancellationRating
8.1
5,005 reviews
Search Southwest flights
  • Southwest Flights From San Diego to St. Louis

    Southwest is one of the most popular airlines flying from San Diego to St. Louis, operating 12 flights/week on average for this route. A good Southwest flight deal for San Diego to St. Louis starts from $338 round-trip, up to an average price of $476. Our users have rated Southwest at 8.1/10.


Why use momondo?

Why should I use momondo to find a flight deal from San Diego to St. Louis?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to St. Louis. momondo saves you time and could save you money on your trip.

Can I find flights from San Diego to St. Louis with flexible booking policies on momondo?

Flights from San Diego to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Diego to St. Louis?

Once all potential San Diego to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Diego to St. Louis right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Diego to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.


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