June is the cheapest month to fly this route, with average fares around $70 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $112 | $56 | Peak | |
| June 2026 | $70 | $56 | Best | |
| July 2026 | $93 | $56 | ||
| August 2026 | $102 | $56 |
Departing on Tuesday offers the lowest average fares at $62. Saturday departures are the most expensive at $103, a difference of $41.
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 Austin to Denver is June, with average round-trip fares around $70. The lowest fare found in June is $56.
Tuesday departures are the cheapest, averaging $62 round trip. The most expensive day is Saturday at $103.
Based on current pricing trends, booking for June travel offers the best value. Avoid May if possible, as fares average $112 compared to $70 in the cheapest month. August is a solid middle-ground option at $102.
Flying in June instead of May can save you approximately $42 per round trip. The cheapest month averages $70 while the most expensive averages $112.
Airlines, flight times, price calendar, and more for Austin to Denver
View AUS → DEN Details