$95 Cheap Flights from Denver (DEN) to Washington (DCA)

You can find cheap one-way flights from $95 and cheap return flights $189 Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) with Expedia. One-way flights generally range between $119 and $875, and roundtrip flights usually range from $276 to $1124. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

The cheapest month to fly from DEN to DCA is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.

Choose from 2 airlines operating direct flights from DEN to DCA:

• Frontier Airlines operates around 20 direct flights from DEN to DCA every week
• United operates around 7 direct flights from DEN to DCA every week

Frontier Airlines is one of the cheapest airlines offering nonstop flights from Denver Intl. (DEN) to Ronald Reagan Washington National (DCA) with round-trip tickets starting from around $50. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Denver, CO (DEN) to Washington, DC (DCA) will differ from traveler to traveler. If you like to fly early, Frontier Airlines offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. United offers the most daily flights from DEN to DCA, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You can find approximately 3 nonstop flights per day from Denver Intl. (DEN) to Ronald Reagan Washington National (DCA). For more options, look at flights that include layovers.

The earliest flight from Denver International Airport (DEN) to Ronald Reagan Washington National Airport (DCA) typically departs at around 12:15 AM, operated by American Airlines. This seasonal service is available in November and December, allowing you to start your trip to Washington, DC early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Denver International Airport (DEN) to Ronald Reagan Washington National Airport (DCA) are in the early morning, from 6am to 9am. About 32% of passengers prefer this time window. Many major carriers, including Southwest Airlines, American Airlines, and Frontier Airlines, offer flights during this period. This timing works well because it allows you to maximize your day in Washington, DC after arriving.

Direct flights from DEN to DCA usually take about 3 hours 30 minutes, traveling roughly 1,472 miles. If you opt for a connecting flight, expect to add around 2 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

You can fly first class between DEN and DCA. First class cabins are available on:

• Delta Air Lines
• American Airlines
• United Airlines

A direct, return business class ticket from Denver (DEN) to Washington, DC (DCA) typically costs between $1,825 - $2,844. A non-stop, one-way business class flight is usually around $734 - $1,198. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) if you opt for a connecting flight.

*Prices based on flights available on Expedia in the last year.

It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

When traveling from Denver Intl. (DEN) to Washington, you can fly into Ronald Reagan Washington National (DCA) and Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), San Diego Intl. (SAN) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) Washington Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Denver, CO (DEN-Denver Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.