| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Denver San Diego | Outbound 11/09/25 direct F92817 02h 29min | Return 12/07/25 direct F92818 02h 38min |  Frontier Airlines |  | $62 | ||
| Denver San Diego | Outbound 11/09/25 direct F92817 02h 29min | Return 12/07/25 direct F92818 02h 38min | Frontier Airlines |  | $67 | ||
| Denver San Diego | Outbound 11/09/25 direct F92817 02h 29min | Return 12/07/25 direct F92818 02h 38min | Frontier Airlines |  | ? | $70 | |
| Denver San Diego | Outbound 11/09/25 direct F92817 02h 29min | Return 12/07/25 direct F92818 02h 38min | Frontier Airlines |  | ? | $80 | |
| Denver San Diego | Outbound 09/25/25 direct F94989 02h 31min | Return 10/05/25 direct F94990 02h 35min | Frontier Airlines |  | $106 | ||
| Denver San Diego | Outbound 11/09/25 direct HA7487 02h 23min | Return 12/07/25 direct F92818 02h 38min |  Hawaiian Airlines |  | ? | $109 | |
| Denver San Diego | Outbound 09/25/25 direct F92711 02h 24min | Return 10/05/25 direct F94990 02h 35min | Frontier Airlines | | $113 | ||
| Denver San Diego | Outbound 11/09/25 direct AS1428 02h 23min | Return 12/07/25 direct AS1429 02h 22min |  Alaska Airlines |  | ? | $197 | |
| Denver San Diego | Outbound 09/25/25 direct UA1835 02h 25min | Return 10/05/25 direct UA2270 02h 28min |  United Airlines | | ? | $199 | |
| Denver San Diego | Outbound 11/09/25 direct HA7487 02h 23min | Return 12/07/25 direct HA7488 02h 22min | Hawaiian Airlines |  | ? | $271 |
Tips and tricks to help you find cheap flights from Denver to San Diego
Favorite airline: Frontier Airlines
65 % of flights from Denver to San Diego are booked with Frontier Airlines.
Frontier Airlines
65 %
United Airlines
29 %
Sun Country Airlines
6 %