San Diego International (SAN) to Denver International (DEN).
| Departure | Return | Price |
|---|---|---|
| 05/27/2026 | 06/01/2026 | $56 |
| 05/27/2026 | 06/02/2026 | $56 |
| 05/27/2026 | 06/04/2026 | $56 |
| 05/27/2026 | 06/05/2026 | $56 |
| 05/28/2026 | 06/02/2026 | $56 |
| 05/28/2026 | 06/04/2026 | $56 |
| 05/28/2026 | 06/05/2026 | $56 |
| 05/28/2026 | 06/06/2026 | $56 |
| 06/01/2026 | 06/06/2026 | $56 |
| 06/01/2026 | 06/08/2026 | $56 |
Based on current fares, May is the cheapest month to fly from San Diego to Denver, with average fares around $110 round trip (as low as $56).
July tends to be more expensive, averaging $139.
See the full month-by-month and day-of-week price analysis
Best Time to Fly SAN → DENDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from San Diego to Denver is May, with average round-trip fares around $110. Fares in May start as low as $56. The most expensive month is July, averaging $139.
A nonstop flight from San Diego to Denver takes approximately 2h 30m.
The cheapest flight from San Diego to Denver currently starts at $56 round trip in economy class.
The average round-trip flight price from San Diego to Denver is $143 in economy class.
The distance is 836 miles (1345 km). with a nonstop flight time of about 2h 30m. The lowest fare currently available is $56 departing in May. The average round-trip fare is $143.
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