$134 Find Cheap Flights from Washington Dulles Airport to Colorado - Compare and Save

The cheapest ticket to Colorado from Washington, D.C. Dulles Intl Airport found in the last 5 days was to Denver, at $309 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 5 days was $309.

The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $443 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $505.

No, with an average price for the route of $566, prices are generally cheapest when you fly direct.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Colorado is January, when tickets cost $338 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $527 and $526 respectively.

If your flying dates are flexible, you should consider flying to Colorado on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington Dulles Airport to Colorado. For your return ticket, we recommend flying on a Thursday and avoiding Mondays for the best deals.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Colorado, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

There are 4 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to Colorado. They are: Frontier, JetBlue, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $82 for a round-trip flight to Denver (DEN). On average, Frontier offers the best prices for nonstop flights between Washington, D.C. Dulles Intl Airport and Colorado.

Washington, D.C. Dulles Intl Airport and Colorado are connected by different airlines. The airlines that fly that route the most regularly are United Airlines (66 flights per week), Copa Airlines (58 flights per week), and Brussels Airlines (18 flights per week).

The duration of a flight to Colorado depends on your arrival airport. The shortest routes to Colorado from Washington, D.C. Dulles Intl Airport are to Denver, which takes 3h 45m, Vail, which takes 4h 30m, and Montrose, which takes 6h 10m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Washington, D.C. Dulles Intl Airport to Colorado departs at 6:30 am, landing in Denver at 8:22 am.

If you prefer to fly at night, the latest flight from Washington, D.C. Dulles Intl Airport to Colorado jets off at 10:34 pm and lands in Denver at 12:30 am.