$119 Cheap American Airlines flights Washington (IAD) to Denver (DEN)

You can discover affordable round-trip American Airlines flights from $229 from IAD to DEN by filtering your results from “Price (lowest to highest)” on Expedia. Or search for deals from $119 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

American Airlines flights to Denver tend to be cheaper in the low-season months of January and November. Whether you need a one-way or a return ticket, you could land a better deal then.

Search for affordable American Airlines flights from Washington Dulles Intl. Airport (IAD) to Denver Intl. Airport (DEN) one to three months prior to your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare type and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To see if there’s a direct route from IAD to DEN with American Airlines or any other airlines, check the “Nonstop” box when looking for flights.

To find the earliest departures from IAD to DEN with American Airlines, filter your results by “Morning” and “Early Morning.” Booking an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

American Airlines flights from Washington Dulles Intl. Airport (IAD) to Denver come in to Denver Intl. Airport (DEN). This is the main entry point to this destination.

Typically, you can change or cancel your flight, although additional charges may apply if you made your booking over 24 hours ago. Need flexible options? Make use of Expedia’s “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to adjust your plans. To modify your itinerary, go to “Trips,” select your flight and click on “Manage Booking” for further information.