| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| St. Louis San Diego | Outbound 10/18/25 1 Stopover (DEN) F94567, F94989 26h 16min | Return 11/17/25 1 Stopover (LAS) F91466, F92018 05h 40min |  Frontier Airlines |  | $220 | ||
| Best option St. Louis San Diego | Outbound 09/19/25 1 Stopover (DEN) UA2625, UA1281 05h 40min | Return 09/29/25 1 Stopover (IAH) UA2140, UA0744 06h 49min |  United Airlines |  | ? | $296 | |
| St. Louis San Diego | Outbound 09/19/25 2 Stopovers (DTW, LAS) NK3897, NK2369, NK1475 28h 01min | Return 09/29/25 3 Stopovers (LAS, ORD, UIN) NK1499, NK0184, 9X0488, 9X0463 29h 36min |  Spirit Airlines | | $445 | ||
| St. Louis San Diego | Outbound 10/18/25 1 Stopover (DEN) F94567, F94989 26h 16min | Return 11/17/25 1 Stopover (LAS) F91466, F92018 05h 40min | Frontier Airlines |  | $231 | ||
| St. Louis San Diego | Outbound 09/19/25 1 Stopover (DFW) AA1363, AA1798 07h 30min | Return 09/29/25 1 Stopover (SEA) AS1137, AS0472 10h 09min |  American Airlines |  | ? | $273 | |
| St. Louis San Diego | Outbound 09/04/25 1 Stopover (SEA) AS0388, AS1156 09h 18min | Return 09/28/25 1 Stopover (ORD) AA2065, AA6428 12h 03min |  Alaska Airlines | | ? | $283 | |
| St. Louis San Diego | Outbound 09/04/25 1 Stopover (DEN) F94567, F92711 05h 58min | Return 09/28/25 1 Stopover (DEN) F94990, F93302 10h 04min | Frontier Airlines |  | ? | $287 | |
| St. Louis San Diego | Outbound 09/04/25 1 Stopover (ORD) UA4395, UA2417 09h 00min | Return 09/28/25 1 Stopover (IAH) UA2472, UA0744 08h 59min | United Airlines | | ? | $287 | |
| St. Louis San Diego | Outbound 10/18/25 1 Stopover (SEA) HA7126, HA6886 09h 05min | Return 11/17/25 1 Stopover (SEA) HA6694, HA6939 10h 26min |  Hawaiian Airlines |  | ? | $293 | |
| St. Louis San Diego | Outbound 10/18/25 1 Stopover (SEA) AS0388, AS1156 09h 05min | Return 11/17/25 1 Stopover (SFO) UA2117, UA2464 06h 23min | Alaska Airlines |  | ? | $301 |
Airline
- United Airlines
- Spirit Airlines
- American Airlines
- Alaska Airlines
- Frontier Airlines
Tips and tricks to help you find cheap flights from St. Louis to San Diego
Favorite airline: Spirit Airlines
The most popular airline for flights from St. Louis to San Diego is Spirit Airlines.
Spirit Airlines
40 %
Frontier Airlines
33 %
Delta
20 %
Favourite connection: via Las Vegas
On this route, flights with a stopover in Las Vegas are the most popular.
Route
bookings
1 stopover Las Vegas - McCarran International Airport, NV
09h 06min, from $254
50 %
1 stopover Denver International Airport, CO
06h 23min, from $217
42 %
1 stopover Detroit Metropolitan Wayne County Airport, MI
09h 54min, from $342
8 %
Important flight information
Flight information: St. Louis - San Diego
| Roundtrip from | $219.61 |
|---|---|
| Flight duration | min. 04:05 / max. 14:00 |
| Return flight duration | min. 03:20/ max. 08:00 |
| Distance | 2504 km |
| Flights per week | 48 |
| Departure airport | Airport St. Louis - Lambert International Airport (STL) |
| Arrival airport | Airport San Diego - Lindberg Field International, CA (SAN) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight St. Louis - New York from $183
- Flight St. Louis - Los Angeles from $288
- Flight St. Louis - Las Vegas from $188
- Flight St. Louis - Tampa from $194
- Flight St. Louis - San Francisco from $207
- Flight St. Louis - Orlando from $165
- Flight St. Louis - Fort Myers from $235
- Flight St. Louis - Chicago O'Hare from $182
- Flight St. Louis - Seattle-Tacoma from $214
- Flight St. Louis - Phoenix - Sky Harbor from $198
Alternative flights to San Diego
- Flight New York - San Diego from $239
- Flight Las Vegas - San Diego from $65
- Flight San Francisco - San Diego from $49
- Flight Orlando - San Diego from $239
- Flight Austin - San Diego from $160
- Flight Seattle-Tacoma - San Diego from $168
- Flight Portland-Oregon - San Diego from $168
- Flight San Jose - San Diego from $65
- Flight Denver - San Diego from $145
- Flight New York - San Diego from $239
Flight destinations with a similar price
- Flight San Diego - Frankfurt from $551
- Flight San Diego - Mexico City from $388
- Flight San Diego - Vancouver from $124
- Flight San Diego - Cancun from $385
- Flight San Diego - Stuttgart from $630
- Flight San Diego - Dusseldorf from $642
- Flight San Diego - Munich from $592
- Flight San Diego - San Jose, Costa Rica from $385
- Flight San Diego - Stockholm from $503
- Flight San Diego - Montego Bay from $434
Flight destinations with a similar price
- Flight St. Louis - San Francisco from $207
- Flight St. Louis - Fort Myers from $235
- Flight St. Louis - Seattle-Tacoma from $214
- Flight St. Louis - Phoenix - Sky Harbor from $198
- Flight St. Louis - New York from $206
- Flight St. Louis - Fort Lauderdale from $201
- Flight St. Louis - Jacksonville, Florida from $241
- Flight St. Louis - Miami from $216
- Flight St. Louis - Newark from $204