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Uncover the best deals on St Louis to San Diego flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest STL - SAN Flights
Useful information for finding best airline tickets from Lambert St Louis International to San Diego International on your next trip.
Cheapest Round Trip Flight
$381
Delta Airlines
• 1 stop
• 9h 15m
Jul 22 – Jul 29
The cheapest round trip flight from St Louis to San Diego (STL-SAN-STL) is currently $381
Cheapest Direct Flight
$907
Southwest Airlines
• nonstop
• 5h 40m
Jul 22
The cheapest nonstop flight from St Louis to San Diego (STL-SAN) is currently $907
Fastest Flight
5h 40m
The fastest nonstop flight from St Louis to San Diego (STL-SAN) takes 5h 40m
Top Airlines Flying from St Louis to San Diego
Latest Flight Deals from St Louis (STL) to San Diego (SAN)
Compare and book low fare round-trip air tickets from St Louis to San Diego. Ideal for travelers with confirmed return itineraries.
Jul 22 - Jul 29, Economy
St Louis → San Diego
9h 15m
7:55 PM - 11:50 PM • 1 stop
St Louis → San Diego
11h 40m
11:37 AM - 8:37 PM • 1 stop
Delta Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
14h 19m
3:58 PM - 10:57 PM • 1 stop
St Louis → San Diego
25h 7m
6:15 AM - 11:22 PM • 2 stops
Delta Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
10h 17m
6:21 AM - 10:38 AM • 1 stop
St Louis → San Diego
19h 7m
10:54 AM - 12:41 AM • 2 stops
Delta Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
20h 40m
9:40 AM - 8:20 PM • 1 stop
St Louis → San Diego
23h 20m
5:05 PM - 9:05 AM • 2 stops
Southwest Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
25h 45m
9:40 AM - 11:25 PM • 1 stop
St Louis → San Diego
23h 20m
5:05 PM - 9:05 AM • 2 stops
Southwest Airlines
Flying to San Diego soon? We've surfaced some of the most affordable last-minute flights from St Louis to San Diego, ideal for urgent plans or spontaneous trips.
Jul 22 - Jul 29, Economy
St Louis → San Diego
9h 15m
7:55 PM - 11:50 PM • 1 stop
St Louis → San Diego
11h 40m
11:37 AM - 8:37 PM • 1 stop
Delta Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
14h 19m
3:58 PM - 10:57 PM • 1 stop
St Louis → San Diego
25h 7m
6:15 AM - 11:22 PM • 2 stops
Delta Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
10h 17m
6:21 AM - 10:38 AM • 1 stop
St Louis → San Diego
19h 7m
10:54 AM - 12:41 AM • 2 stops
Delta Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
20h 40m
9:40 AM - 8:20 PM • 1 stop
St Louis → San Diego
23h 20m
5:05 PM - 9:05 AM • 2 stops
Southwest Airlines
Jul 22 - Jul 29, Economy
St Louis → San Diego
25h 45m
9:40 AM - 11:25 PM • 1 stop
St Louis → San Diego
23h 20m
5:05 PM - 9:05 AM • 2 stops
Southwest Airlines
Looking for the fastest way to San Diego? These direct flight options from STL to SAN offer both convenience and value—no layovers, just straight to your destination.
FAQs on St Louis to San Diego Flights
What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to SAN?
The most popular airline flying from St Louis to San Diego are
Can I fly from STL to SAN non-stop?
Yes, you can fly STL to SAN non-stop on
Which airlines fly nonstop between St Louis and San Diego?
The non-stop flights between St Louis and San Diego are .
What’s the earliest departure time from STL to SAN Airport?
The earliest flight leaves STL at 6:21 am and lands in SAN - San Diego International
What are the airports in San Diego?
SAN
Can I make changes to my St Louis to San Diego flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to SAN?
Read the fare rules of the St Louis to San Diego air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and San Diego?
operate flights between St Louis and San Diego
How long does a flight from St Louis to San Diego take?
It takes approximately 4 hour to fly non-stop from STL to SAN, which is 1557.18 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to San Diego (SAN) ?
In the past couple of days, the cheapest tickets to SAN from STL were found on DL : USD 464
Do I need a passport to fly between STL and SAN?
No
What’s the latest departure time from STL to SAN ?
The last flight leaves STL at 7:55 pm
St Louis (STL) to San Diego (SAN): Airport Information
| Origin Airport | Lambert St Louis International , St Louis, US |
| Destination Airport | San Diego International , San Diego, US |
| Distance | 1557 miles |
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