The cheapest times to fly from DUB to DCA are

  • September 10th to April 1st (except the weeks of September 17th, October 22nd, and December 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DUB to DCA is late January and early February. Prices can be as high as $854 for Friday flights during early to mid August, or as low as $361 for Tuesday flights around late January and early February.


When to Fly to Washington

Flying from Dublin (DUB) to Washington, DC (DCA) will usually cost between $368 to $695 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $367. Due to high demand the most expensive time to fly is early to mid August, with an average price of $786. Planning your trip to low-cost times can easily save you $419 on economy flights and even more on first-class flights. Generally, any price below $436 can be considered a good price for a round-trip DUB to DCA flight.

See below for a graph of average weekly prices for the DUB to DCA route. All prices are for round-trip tickets in USD.

DUB to DCA Flight Prices

Compared to other flights, the DUB to DCA flight is much cheaper than the average and costs less than the average flight leaving from Dublin. The average price per mile (for a direct flight) is $0.08, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly to Washington, and Sundays are the most expensive days to return to Dublin. Selecting flights on the least expensive days could save you up to $67 (8%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $441. Return trip prices are from the DCA to DUB flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from DUB to DCA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 7 hour 4 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from DUB to DCA while comparing.

Destination alternative #1: Washington Dulles International Airport (IAD) in Washington, DC

  • 24 miles (39 km) away from DCA
  • Usually 5.96% less expensive than DCA
  • Nonstop flights available

See DUB to IAD flights

Destination alternative #2: Philadelphia International Airport (PHL) in Philadelphia, PA

  • 119 miles (192 km) away from DCA
  • Usually 3.67% less expensive than DCA
  • Nonstop flights available

See DUB to PHL flights


Flight Questions Answered

Still have questions about flying from DUB to DCA? We’ve got answers.

Which airlines fly this route?

You can find 18 major airlines flying this route most often: Aer Lingus, Air Canada, Air France, Alaska, American, Austrian, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue, KLM, Lufthansa, SWISS, Tap Air Portugal, United, WestJet, and potentially more during busy seasons.

How far away is it from Ronald Reagan Washington National Airport to Dublin Airport?

The distance between the two airports is roughly 3382 miles or 5443 kilometers.

How long does it take to fly from DUB to DCA?

The real-world flight time for a nonstop DUB to DCA flight is about 7 hour 4 minutes.

How many flights go between Dublin and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 58 available flights from DUB to DCA.


Airport Location Info


Departing Airport

Origination codeDUB
Origination airport nameDublin Airport

Return Airport

Destination codeDCA
Destination airport nameRonald Reagan Washington National Airport
CityWashington, DC
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.