Cheap flights from Dublin to District of Columbia from €254

The month of September is, on average, the cheapest month to fly to District of Columbia from Dublin, with most prices found around €432. The month of October is another great option to travel to District of Columbia, with average flight prices from Dublin averaging around €442.

Our data shows that Thursday is the least expensive day to fly to District of Columbia. Tickets to fly out on this day can be as low as €653. On the other hand, Sunday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €788.

The cheapest time of day to fly to District of Columbia is in the afternoon when flights can be purchased for as low as €515. In contrast, the most expensive time of day to depart to District of Columbia is in the morning when prices are around €700.

Fly from Dublin to Washington, D.C. Dulles Intl for the best Dublin - District of Columbia flight prices

You are more likely to see cheaper flights to District of Columbia from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around €527 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Dublin for as low as €426 on momondo.

There are 2 cabin classes available to choose from on Dublin to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet is the most popular carrier operating from Dublin to District of Columbia

Aer Lingus, United Airlines and PLAY are the top three most popular airlines that fly to District of Columbia from Dublin according to our data. Aer Lingus is the first choice among our users, with 69% of people opting to fly with this airline when travelling to District of Columbia. Keep in mind that there are 3 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

As of February 2026, 6 flights take off from Dublin and land in District of Columbia each day. The most common flight departure time for this route is 12:00, with 100% of daily flights taking off in the afternoon.

As of February 2026, 45 flights take off from Dublin and land in District of Columbia each week. The most common flight departure day for this route is Tue, with 16% of weekly flights taking off on this day.