| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option San Francisco Denver | Outbound 07/25/25 direct F93440 02h 41min | Return 08/17/25 direct F93439 02h 50min |  Frontier Airlines |  | $166 | ||
| San Francisco Denver | Outbound 07/25/25 direct F93440 02h 41min | Return 08/17/25 direct F93439 02h 50min | Frontier Airlines |  | ? | $170 | |
| San Francisco Denver | Outbound 07/25/25 direct F93440 02h 41min | Return 08/17/25 direct F91229 02h 52min | Frontier Airlines |  | $175 | ||
| San Francisco Denver | Outbound 07/25/25 direct F93440 02h 41min | Return 08/17/25 direct F91229 02h 52min | Frontier Airlines |  | $180 | ||
| San Francisco Denver | Outbound 07/25/25 direct F93440 02h 41min | Return 08/17/25 direct F91229 02h 52min | Frontier Airlines |  | $191 | ||
| San Francisco Denver | Outbound 07/25/25 direct UA0566 02h 43min | Return 08/17/25 1 Stopover (LAS) F92015, F93801 25h 42min |  United Airlines |  | ? | $301 | |
| San Francisco Denver | Outbound 07/25/25 direct UA2420 02h 36min | Return 08/17/25 direct UA1412 02h 46min | United Airlines |  | ? | $304 | |
| San Francisco Denver | Outbound 09/19/25 1 Stopover (PDX) AS0835, AS1235 05h 38min | Return 09/29/25 1 Stopover (PDX) AS1136, AS0836 05h 48min |  Alaska Airlines |  | ? | $316 | |
| San Francisco Denver | Outbound 09/19/25 1 Stopover (SEA) AS0922, AS0682 14h 07min | Return 09/29/25 1 Stopover (PDX) AS1136, AS0836 05h 48min | Alaska Airlines | | ? | $328 | |
| San Francisco Denver | Outbound 09/19/25 1 Stopover (SEA) AS1113, AS0620 07h 21min | Return 09/29/25 1 Stopover (PDX) AS1136, AS0836 05h 48min | Alaska Airlines | | ? | $334 |
Tips and tricks to help you find cheap flights from San Francisco to Denver
Favorite airline: Frontier Airlines
The majority of passengers on the route San Francisco – Denver prefer to fly with Frontier Airlines.
Frontier Airlines
59 %
United Airlines
15 %
Delta
13 %