AirHint found the following cheapest return flights from San Diego (SAN) to Denver (DEN) in July 2026 (see full year).
Return flights
| 30 Jul - 01 Aug | United | ||
| 03 Jul - 06 Jul | Alaska Airlines | direct | |
| 10 Jul - 15 Jul | Delta |
Also check the deals for one-way flights from San Diego to Denver in July.
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