Direct Flights from DCA to DEN: Experience the Best of Washington and Denver
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$158.2
Last updated Feb 16, 2026
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Tracking the May 7, 2026 departure — the cheapest date we found.
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Washington DC (DCA)
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Denver (DEN)
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Search FlightsEmbarking on a journey from the historic corridors of Washington D.C. via Ronald Reagan Washington National Airport (DCA) to the stunning landscapes of Denver International Airport (DEN) provides travelers with a unique transition from the political heartbeat of the East Coast to the gateway of the Rocky Mountains. This route is highly favored by both federal employees on official business and adventure seekers looking to trade the humidity of the Potomac for the crisp, thin air of the Mile High City. With several major carriers offering non-stop service, you can easily swap views of the Lincoln Memorial for the iconic white peaks of the Denver airport terminal in just under four and a half hours, making it an efficient cross-country hop for any itinerary.
Travel Tips
To ensure a smooth departure from DCA, consider taking the Metro directly to the terminal, as parking can be expensive and fills up quickly during the work week. Once you land in Denver, it is crucial to start hydrating immediately; the increase in altitude from sea level to over 5,000 feet can cause headaches or fatigue if you are not well-watered. For those traveling with ski gear or outdoor equipment, check the specific baggage policies for United or Southwest, as they frequently service this route and have different rules regarding oversized items. Finally, if your schedule allows, try to book a window seat on the left side of the aircraft when flying west to catch potential views of the Appalachian Mountains and the vast Midwestern plains before the Rockies come into focus.
Airport Information
Washington DC (DCA)
Ronald Reagan Washington National Airport (DCA) is located just five miles from downtown Washington D.C., making it the most accessible airport for those staying in the capital. It is famous for its 'River Visual' approach, offering passengers incredible views of the National Mall. The airport is compact, efficient, and features a wide array of local dining options that reflect the flavors of the Chesapeake Bay region.
Denver (DEN)
Denver International Airport (DEN) is a massive transportation hub known for its distinctive architecture and expansive land area. Located roughly 25 miles northeast of downtown, it is easily reachable via the RTD A-Line commuter train. The airport serves as a major gateway for international travelers and offers a plethora of amenities, including high-end lounges, impressive art installations, and an outdoor plaza for fresh air between flights.
Seasonal Pricing Patterns
Travelers looking for the best value should target the shoulder seasons, specifically late April to early June or the month of October, when airfares are typically more competitive. The most expensive times to fly from DCA to DEN coincide with the peak ski season in December and January, as well as the height of summer in July when families head to the mountains. Booking at least six weeks in advance is recommended to avoid the premium pricing associated with last-minute business travel.
Frequently Asked Questions
What is the average flight duration from DCA to DEN?
A non-stop flight from Reagan National to Denver typically lasts approximately 4 hours and 10 minutes, though tailwinds can shorten the return trip to D.C.
Which airlines offer non-stop service on this route?
United Airlines and Southwest Airlines are the primary carriers providing daily non-stop flights between DCA and DEN.
How do I get from Denver International Airport to downtown Denver?
The most convenient method is the University of Colorado A-Line train, which departs every 15 to 30 minutes and arrives at Union Station in about 37 minutes.
Is there a time change between Washington D.C. and Denver?
Yes, Denver is in the Mountain Time Zone, which is two hours behind the Eastern Time Zone used in Washington D.C.