Route Price Intelligence
Cheap Flights From St. Louis to Denver
Live pricing benchmarks, monthly patterns, and historical lows for this route.
🔥 Fire DealFound 3d ago
$108FIRE DEAL: Denver from just $108 with Southwest! Perfect for mountain adventures, craft beer scene, and outdoor activities.
✓ 4 date combinations found at this price
Search Google FlightsTypical Price
$284
Deals From
$200
Usually Costs
$200 – $357
Lowest We've Seen
$56
Based on 4,953 price pointshigh confidence
Monthly Price Guide
Jan
$357
Feb
$357
Mar
$447
Apr
$201
May
$160
Jun
$194
Jul
$214
Aug
$204
Sep
$347
Oct
$347
Nov
$357
Dec
$358
Cheapest Average Expensive
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 $160. The most expensive month tends to be March at around $447. For the best deals, consider flying in May, June, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $5777 price checksWorst: $144