Route Price Intelligence
Cheap Flights From San Diego to Denver
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Frontier is offering nonstop San Diego to Denver for $66 round trip, down from the usual $179, a 63% discount and one of the lowest Denver fares we've tracked this year. These bargain fares have been popping up through late summer and into fall, making it an easy one to slot into your calendar for a quick mountain getaway.
✓ 13 date combinations found at this price
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Best Time to Fly from San Diego to Denver
The cheapest time to fly from San Diego to Denver is typically May, when fares average around $107. The most expensive month tends to be September at around $257. For the best deals, consider flying in May, June, July.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route