Route Price Intelligence
Cheap Flights From St. Louis to Denver
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Denver is down to $88 round trip from St. Louis, a massive 76% cut from the usual $367 fare and one of the steeper discounts we've tracked on this route. That price works just as well for a long weekend as a full week, whether it's hiking the Rockies or an early start to ski season.
✓ 11 date combinations found at this price
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Best Time to Fly from St. Louis to Denver
The cheapest time to fly from St. Louis to Denver is typically May, when fares average around $179. The most expensive month tends to be March at around $412. For the best deals, consider flying in May, April, June.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route