June is the cheapest month to fly this route, with average fares around $165 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $172 | $90 | Peak | |
| June 2026 | $165 | $112 | Best | |
| July 2026 | $165 | $123 | ||
| August 2026 | $168 | $139 |
Departing on Wednesday offers the lowest average fares at $147. Sunday departures are the most expensive at $201, a difference of $54.
The best time to fly is June. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Chicago to Denver is June, with average round-trip fares around $165. The lowest fare found in June is $112.
Wednesday departures are the cheapest, averaging $147 round trip. The most expensive day is Sunday at $201.
Based on current pricing trends, booking for June travel offers the best value. Avoid May if possible, as fares average $172 compared to $165 in the cheapest month. August is a solid middle-ground option at $168.
Flying in June instead of May can save you approximately $7 per round trip. The cheapest month averages $165 while the most expensive averages $172.
Airlines, flight times, price calendar, and more for Chicago to Denver
View ORD → DEN Details