$142 Find Cheap Flights from Washington Dulles Airport to Denver - Compare and Save

These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Denver:

• Earliest: departs at 6:10 am and lands at 10:16 am
• Latest: departs at 10:34 pm and lands at 2:40 am.

The flight takes about 4h 06m.

Two cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Denver:

• Economy Class
• First Class

A nonstop flight from Washington, D.C. Dulles Intl Airport to Denver takes 4h 06m, covering 1,448 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Washington, D.C. Dulles Intl Airport to Denver range from $342 to $541, with an average of $439 over the past 12 months. Anything below $342 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 41% above the $439 route average. Book 5 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $279 round-trip via Detroit Metropolitan Wayne County (DTW), compared to $445 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-900 family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Airbus A321neo variants.

Morning is the busiest departure period on Washington, D.C. Dulles Intl Airport to Denver flights, with 38% of flights leaving in that window. Afternoon departures account for 38%, evening flights for 12%, and night flights for 12%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $264 to $1,990. That means the highest observed fare was about 8x higher than the lowest one.

JetBlue is the only airline on the Washington, D.C. Dulles Intl Airport to Denver route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Washington, D.C. Dulles Intl Airport to Denver are currently lower than usual. Average one-way flight prices are about $212, which is 20% below the typical average for this route.

Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Ace
• Europcar
• NU Car
• Hertz

Flights from Washington, D.C. Dulles Intl Airport to Denver usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Denver Intl (DEN).

Morning flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. Dulles Intl Airport to Denver route, 12% of flights were delayed in the past 3 months, with delays averaging 2h 22m.

One-stop flights from Washington, D.C. Dulles Intl Airport to Denver most commonly connect through:

• Atlanta Hartsfield-Jackson (ATL) - 69% of one-stop connections
• Charlotte Douglas (CLT) - 9% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 9% of one-stop connections
• Dallas/Fort Worth (DFW) - 4% of one-stop connections

Yes. Flexible dates can save you up to 21% on flights from Washington, D.C. Dulles Intl Airport to Denver. Wednesday is the cheapest departure day at $403 round-trip on average, while Sunday is the most expensive at $508, a difference of $105.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only United Airlines operates flights between Washington, D.C. Dulles Intl Airport and Denver.

Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 5h 34m, compared with 5h 52m via Charlotte Douglas (CLT) and 7h 47m via Tampa (TPA).

Denver is 2 hours behind Washington, D.C. Dulles Intl Airport (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Denver are Colorado Convention Center, Coors Field and Ball Arena. These are among the most viewed places in Denver on KAYAK.

Among airlines operating Washington, D.C. Dulles Intl Airport to Denver flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• JetBlue: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Passengers who want to freshen up can take showers. Air France-KLM and British Airways lounges offer showers services. Air France-KLM is located opposite gate A22 concourse A in the midfield terminal, while British Airways lounge is located at concourse B in the midfield terminal. Passengers can also have massages at gate A20, concourse A on the airside. You can also have manicures, pedicures and massages in gate A32 on concourse B.

If you want help, you can visit the information desks on the landside at baggage claims 6, 11 and 14 and on the airside, near gates A15, B62, C17 and D16. There is also an organization known as Traveler's Aid that helps lost passengers by answering their questions. They are located at the baggage claim areas adjacent to carousels 6, 12 and 14. In concourses A, B, C, C7 and D, mobile guides are walking around.

If you are traveling with your pet and wondering where you can find pet relief areas in DEN, they are located on each concourse and another outside the terminal. IAD also has pet relief areas near carousel 1, baggage claim areas, arrivals level, door 1 near AeroMexico counter and door 16 United Airlines Counter on the landside. On the airside, they are situated at gates D1 and A32.

If you are at IAD, take advantage of the lounges inside the airport. Payment can be made at the door and you can purchase a lounge pass or a lounge membership program. Lounges in IAD include KLM lounge opposite gate A22, concourse A on the midfield terminal, British Airways Galleries lounge in concourse B, and airside on the midfield. If you are a military officer, USO lounge offers free services to military officers and their families. It is located across from baggage claim 11 and 12, arrivals level on the main terminal.