Flights from San Diego to St. Louis

Our cheapest offers for flights from San Diego to St. Louis

Here you can compare cheap flights from San Diego (SAN) to St. Louis (STL) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to St. Louis. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
San Diego
St. Louis
Outbound
10/18/25
1 Stopover (DEN)
F92818, F93302
24h 42min
Return
11/17/25
1 Stopover (LAS)
F93107, F91325
25h 55min
Frontier Airlines
$221
Best option
San Diego
St. Louis
Outbound
10/18/25
1 Stopover (PHX)
AS1208, AS4303
07h 55min
Return
11/17/25
1 Stopover (SEA)
AS0388, AS0335
08h 47min
Alaska Airlines ?
$320
San Diego
St. Louis
Outbound
10/18/25
1 Stopover (DEN)
F92818, F93302
24h 42min
Return
11/17/25
1 Stopover (LAS)
F93107, F91325
25h 55min
Frontier Airlines
$232
San Diego
St. Louis
Outbound
10/18/25
1 Stopover (IAH)
UA2472, UA0744
08h 59min
Return
11/17/25
1 Stopover (SEA)
AS0473, AS0621
09h 17min
United Airlines ?
$308
San Diego
St. Louis
Outbound
10/18/25
1 Stopover (ORD)
AA0518, AA4282
08h 07min
Return
11/17/25
1 Stopover (ORD)
AA4148, AA1861
06h 24min
American Airlines ?
$406
San Diego
St. Louis
Outbound
10/18/25
1 Stopover (SEA)
AS1099, AS0472
08h 08min
Return
11/17/25
1 Stopover (SEA)
AS0388, AS1369
11h 12min
Alaska Airlines
$439
Prices based on recent searches, subject to last-minute changes
Page 1 / 1

Tips and tricks to help you find cheap flights from San Diego to St. Louis

Favorite airline: Spirit Airlines
The favorite airline for flights from San Diego to St. Louis is Spirit Airlines.
Spirit Airlines
37 %
Frontier Airlines
21 %
Delta
16 %
Favourite connection: via Las Vegas
The most popular route is via Las Vegas and is booked by 50 % of all travelers.
Route
bookings
1 stopover Las Vegas - McCarran International Airport, NV
11h 22min, from 219 $
50 %
1 stopover Denver International Airport, CO
21h 51min, from 235 $
25 %
1 stopover Seattle-Tacoma International Airport, WA
08h 41min, from 317 $
19 %

Important flight information

Flight information: San Diego - St. Louis

Roundtrip from 220,19 $
Flight duration min. 03:20 / max. 08:00
Return flight duration min. 04:05/ max. 14:00
Distance 2504 km
Flights per week 30
Departure airport Airport San Diego - Lindberg Field International, CA (SAN)
Arrival airport Airport St. Louis - Lambert International Airport (STL)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to St. Louis
Flight destinations with a similar price
Flight destinations with a similar price