Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from €229

If you aren’t able to travel during the month of January, then book flights to Dublin from Washington, D.C. Dulles Intl Airport during November instead. Flights to Dublin in November, while not as cheap as those in January, still average around €530.

Our data shows that Thursday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €689. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around €854. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Dublin flights are usually those with departure times in the evening. Our users have found flights to Dublin in the evening for as low as €672. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €672 on average. Flights to Dublin from Washington, D.C. Dulles Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Dublin from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €630 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Washington, D.C. Dulles Intl Airport for as low as €550 on momondo.

There is only 1 cabin class available to choose from on Washington, D.C. Dulles Intl Airport to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 44% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Dublin flight.

As of May 2026, prices for Washington, D.C. Dulles Intl Airport to Dublin flights are approximately 4% more expensive when compared to flights at the same time last year.

Historically, on average around 17% of flights between Washington, D.C. and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 182 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

The number of flights available between Washington, D.C. Dulles Intl Airport and Dublin is 12 per day as of May 2026. The most frequent departure time is 17:00, with 63% of daily flights leaving in the evening.

89 flights are operational weekly from Washington, D.C. Dulles Intl Airport to Dublin as of May 2026. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.