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Cheap Flights from Washington Dulles to Dublin

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Compare Washington Dulles to Dublin flight deals

Find the cheapest month or even day of the year to fly to Dublin

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Flight deals from Washington Dulles to Dublin

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Dublin? Find the lowest prices on one-way and return tickets right here.
Dublin.360 € per passenger.Departing Wed, 5 Nov, returning Wed, 19 Nov.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Wed, 5 Nov, arriving in Dublin.Inbound indirect flight with Scandinavian Airlines, departs from Dublin on Wed, 19 Nov, arriving in Washington Dulles.Price includes taxes and charges.From 360 €, select.
Dublin.365 € per passenger.Departing Mon, 18 Aug, returning Tue, 26 Aug.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Washington Dulles on Mon, 18 Aug, arriving in Dublin.Inbound direct flight with Aer Lingus departs from Dublin on Tue, 26 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 365 €, select.
Dublin.380 € per passenger.Departing Thu, 2 Oct, returning Thu, 16 Oct.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Thu, 2 Oct, arriving in Dublin.Inbound indirect flight with TAP Air Portugal, departs from Dublin on Thu, 16 Oct, arriving in Washington Dulles.Price includes taxes and charges.From 380 €, select.
Dublin.389 € per passenger.Departing Tue, 2 Sep, returning Tue, 9 Sep.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Washington Dulles on Tue, 2 Sep, arriving in Dublin.Inbound direct flight with Aer Lingus departs from Dublin on Tue, 9 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 389 €, select.
Dublin.391 € per passenger.Departing Sat, 14 Mar, returning Fri, 20 Mar.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Sat, 14 Mar, arriving in Dublin.Inbound indirect flight with TAP Air Portugal, departs from Dublin on Fri, 20 Mar, arriving in Washington Dulles.Price includes taxes and charges.From 391 €, select.
Dublin.391 € per passenger.Departing Thu, 15 Jan, returning Mon, 19 Jan.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Thu, 15 Jan, arriving in Dublin.Inbound indirect flight with TAP Air Portugal, departs from Dublin on Mon, 19 Jan, arriving in Washington Dulles.Price includes taxes and charges.From 391 €, select.
Dublin.403 € per passenger.Departing Tue, 25 Nov, returning Tue, 2 Dec.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Tue, 25 Nov, arriving in Dublin.Inbound indirect flight with Scandinavian Airlines, departs from Dublin on Tue, 2 Dec, arriving in Washington Dulles.Price includes taxes and charges.From 403 €, select.
Dublin.411 € per passenger.Departing Wed, 30 Jul, returning Fri, 8 Aug.Return flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Washington Dulles on Wed, 30 Jul, arriving in Dublin.Inbound direct flight with Aer Lingus departs from Dublin on Fri, 8 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 411 €, select.

Find the cheapest month to fly from Washington Dulles to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Dublin flights are currently cheapest in November.
May
from 417 €
Jun
from 509 €
Jul
from 442 €
Aug
from 365 €
Sep
from 389 €
Oct
from 380 €
Nov
from 360 €
Dec
from 430 €
Jan
from 391 €
Feb
from 506 €
Mar
from 391 €
Apr
from 532 €

Direct flights from Washington Dulles to Dublin

Washington Dulles to Dublin: Alternative routes

Compare routes from Washington Dulles to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Washington D.C. to Dublin: Flight information

The things to know before you go.
Cheapest flight found360 €
Cheapest month to flyNovember
Average flight time6 hrs, 59 mins
Most popular airlineAer Lingus
Average flights per week76

Finding cheap flights from Washington Dulles to Dublin: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Dublin is 360 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
6 hours and 59 minutes is the average flight time from Washington Dulles to Dublin.
Aer Lingus, American Airlines and British Airways fly direct from Washington Dulles to Dublin.
As of May 2025, there are 76 flights per week flying from Washington Dulles to Dublin.
The cheapest month to fly from Washington Dulles to Dublin is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Dublin Airport on Wednesday, 5 November 2025.
Yes – the average flight time is 6 hours and 59 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Scandinavian Airlines and Aer Lingus offer the cheapest flight tickets to Dublin.

Flying from Washington Dulles International Airport (IAD) to Dublin Airport (DUB): what you need to know

  • Book a direct flight from Washington Dulles International Airport to Dublin Airport and you'll be travelling for an average of 7 hours 5 minutes.

  • Dublin is four hours ahead of Washington DC and observes the UTC+0 timezone.

  • Every week, there are 28 Washington Dulles International Airport to Dublin Airport flights. To jet off as early as possible, opt for the 17:10 Aer Lingus flight. If you're eager to make the most of your day before flying, the last flight is at 23:05 with United Airlines.

  • Arrive at the airport on time so you don't miss your IAD to DUB flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • During popular months like April, you'll want to get to the airport earlier. Plan to arrive two hours before domestic departures and four hours ahead of an international flight whenever you're travelling during peak periods in general.

  • Aer Lingus has direct flights from Washington Dulles International Airport to Dublin Airport. Book with this popular airline, then get ready to see the sights in Dublin — and maybe even more of Ireland if time allows.

  • Most travellers choose to fly with Aer Lingus on this route.

  • With a dependable 80.0% of services arriving on schedule, United Airlines has the best on-time performance for IAD to DUB flights.

  • If you'd like to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from Washington Dulles International Airport to Dublin Airport. These are the most popular stopovers between IAD and DUB:

    • Logan International Airport

    • Philadelphia International Airport

    • Keflavik International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Dublin Airport (DUB)

  • The cheapest price we've seen for a one-way Washington Dulles International Airport to Dublin Airport flight is 221 €. A return fare is currently 360 €. Depending on the availability and when you book, these fares may change.

  • To pick up cheap tickets from IAD to DUB, reserve your journey nine months ahead of your planned departure.

  • Plan your trip for August. That's the cheapest month for flights from Washington Dulles International Airport to Dublin Airport. If you're flexible on when you fly, try out the 'Whole month' tool to see the lowest airfare across each month.

  • Save time looking for cheap flights from IAD to DUB by creating a Price Alert. We'll send you an email or push notification on the app when a new discounted fare appears.

  • Secure the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Washington Dulles International Airport to Dublin Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and number of stops.

Handy information about Washington Dulles International Airport (IAD)

  • You'll find IAD at 1 Saarinen Circle.

  • 74.39% of flights taking off from Washington Dulles International Airport touch down at their destination on schedule.

  • To reach Washington Dulles International Airport from central Washington DC, it takes around 50 minutes by car. Of course, this depends on traffic conditions. It's approximately 56 kilometres from the airport to the city centre.

  • The trip when using public transport takes roughly 3 hours 25 minutes.

  • Need a handy hotel close to IAD? If you're boarding an early flight from Washington Dulles International Airport to Dublin Airport, these accommodation options will have you sleeping moments from check-in:

Arriving at Dublin Airport (DUB)

Getting from Dublin Airport (DUB) to central Dublin

  • Dublin Airport to the centre of Dublin has a drive time of about 30 minutes. It's approximately 21 kilometres away.

  • Getting there by public transport typically takes 2 hours 10 minutes.

When to fly to Dublin Airport (DUB)

  • August is the busiest month for flights from Washington Dulles International Airport to Dublin Airport. To avoid the crowds, go to Dublin in January.

  • Lock in your flight from Washington Dulles International Airport to Dublin Airport for July if you'd like to go to Dublin during its warmest month. You can expect temperatures of between 10ºC (50ºF) and 20ºC (68ºF).

  • If you'd rather travel in cooler conditions, search for a cheap ticket from IAD to DUB in January. Average temperatures are between 1ºC (34ºF) and 9ºC (48ºF) then.

Explore more of Ireland

  • Cork is just one of the many cities in Ireland waiting to be discovered after you've experienced Dublin. Around 225 kilometres away to the south-west, popular attractions include Blarney Castle, Fota Wildlife Park and Titanic Experience Cobh.

  • Tallaght is another standout destination in Ireland and is around 10 kilometres south-west of Dublin. No journey is complete without experiencing Church of the Incarnation, Fettercairn, 3 stuffed bears and Johnson & Perrott Fleet.

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Plan the rest of your trip from Washington D.C. to Dublin

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.