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Cheap Flights from Washington D.C. (DCA) to Dublin (DUB)

Compare Washington Ronald Reagan 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 Ronald Reagan to Dublin

Looking for a cheap last-minute deal or the best return flight from Washington Ronald Reagan Airport to Dublin Airport? If you want to travel next month, return fares start from $644. Find the lowest prices on one-way and return tickets right here.
Dublin.$644 per passenger.Departing Fri, 14 Aug, returning Fri, 21 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Fri, 14 Aug, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Fri, 21 Aug, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $644, select.
Dublin.$926 per passenger.Departing Fri, 25 Sep, returning Wed, 30 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Fri, 25 Sep, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Wed, 30 Sep, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $926, select.
Dublin.$942 per passenger.Departing Mon, 27 Jul, returning Tue, 1 Sep.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Washington Ronald Reagan on Mon, 27 Jul, arriving in Dublin.Inbound indirect flight with Finnair, departs from Dublin on Tue, 1 Sep, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $942, select.
Dublin.$943 per passenger.Departing Mon, 27 Jul, returning Mon, 31 Aug.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Washington Ronald Reagan on Mon, 27 Jul, arriving in Dublin.Inbound indirect flight with Air France, departs from Dublin on Mon, 31 Aug, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $943, select.
Dublin.$953 per passenger.Departing Sat, 8 Aug, returning Thu, 3 Sep.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Washington Ronald Reagan on Sat, 8 Aug, arriving in Dublin.Inbound indirect flight with Finnair, departs from Dublin on Thu, 3 Sep, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $953, select.
Dublin.$986 per passenger.Departing Mon, 21 Sep, returning Mon, 5 Oct.Return flight with Air France.Outbound indirect flight with Air France, departs from Washington Ronald Reagan on Mon, 21 Sep, arriving in Dublin.Inbound indirect flight with Air France, departs from Dublin on Mon, 5 Oct, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $986, select.
Dublin.$997 per passenger.Departing Wed, 11 Nov, returning Wed, 18 Nov.Return flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Wed, 11 Nov, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Wed, 18 Nov, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $997, select.
Dublin.$1,005 per passenger.Departing Tue, 27 Oct, returning Tue, 3 Nov.Return flight with Air France.Outbound indirect flight with Air France, departs from Washington Ronald Reagan on Tue, 27 Oct, arriving in Dublin.Inbound indirect flight with Air France, departs from Dublin on Tue, 3 Nov, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,005, select.
Dublin.$1,018 per passenger.Departing Wed, 18 Nov, returning Tue, 8 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 18 Nov, arriving in Dublin.Inbound indirect flight with Delta, departs from Dublin on Tue, 8 Dec, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,018, select.
Dublin.$1,029 per passenger.Departing Mon, 20 Jul, returning Wed, 29 Jul.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Washington Ronald Reagan on Mon, 20 Jul, arriving in Dublin.Inbound indirect flight with KLM, departs from Dublin on Wed, 29 Jul, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,029, select.
Dublin.$1,030 per passenger.Departing Fri, 2 Oct, returning Tue, 13 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Fri, 2 Oct, arriving in Dublin.Inbound indirect flight with Delta, departs from Dublin on Tue, 13 Oct, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,030, select.
Dublin.$1,083 per passenger.Departing Wed, 2 Sep, returning Tue, 22 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Wed, 2 Sep, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Tue, 22 Dec, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,083, select.
Dublin.$1,158 per passenger.Departing Mon, 3 Aug, returning Mon, 18 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Mon, 3 Aug, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Mon, 18 Jan, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,158, select.
Dublin.$1,166 per passenger.Departing Wed, 13 Jan, returning Wed, 20 Jan.Return flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Wed, 13 Jan, arriving in Dublin.Inbound indirect flight with United, departs from Dublin on Wed, 20 Jan, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,166, select.
Dublin.$1,176 per passenger.Departing Sun, 25 Apr, returning Tue, 4 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Sun, 25 Apr, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Tue, 4 May, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,176, select.
Dublin.$1,178 per passenger.Departing Mon, 12 Apr, returning Wed, 21 Apr.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Washington Ronald Reagan on Mon, 12 Apr, arriving in Dublin.Inbound indirect flight with Air Canada, departs from Dublin on Wed, 21 Apr, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $1,178, select.

Find the cheapest month to fly from Washington Ronald Reagan to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Ronald Reagan to Dublin flights are currently cheapest in August.
Jul
from $1,029
Aug
from $644
Sep
from $926
Oct
from $1,030
Nov
from $997
Dec
from $1,259
Jan
from $1,166
Feb
from $1,240
Mar
from $1,191
Apr
from $1,178
May
from $1,371
Jun
from $1,611

Washington Ronald Reagan to Dublin: Alternative routes

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

Dublin

10km from central Dublin
ClosestCheapest
from $644
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Washington D.C. to Dublin: Flight information

The things to know before you go.
Cheapest flight found$644
Cheapest month to flyAugust

Finding cheap flights from Washington Ronald Reagan to Dublin: Frequently asked questions

The best price we found for a return flight from Washington Ronald Reagan to Dublin is $644. 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.
Currently, there are no airlines that fly direct from Washington Ronald Reagan to Dublin. But we found flights with one or more stops from $644.
As of July 2026, there are no flights flying from Washington Ronald Reagan to Dublin.
The cheapest month to fly from Washington Ronald Reagan to Dublin is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Ronald Reagan Airport to Dublin Airport on Friday, 14 August 2026.
No airlines currently offer direct flights between Washington Ronald Reagan Airport and Dublin Airport. Most routes have one or more stops.
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, Air Canada offers the cheapest flight tickets to Dublin.

Travelling from Washington Ronald Reagan Airport (DCA) to Dublin Airport (DUB): what you need to know

  • The timezone in Dublin is UTC+0, which is five hours ahead of Washington DC.

  • Your DCA to DUB flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak time such as August? Major public holidays and other popular seasons can result in longer lines at check-in and security. Be extra cautious and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from Washington Ronald Reagan Airport to Dublin Airport. Simply deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Here's where you can stop between DCA and DUB:

    • Boston Logan International Airport

    • Toronto Pearson International Airport

    • Hartford Bradley International Airport

Handy information about Washington Ronald Reagan Airport (DCA)

  • You'll find DCA at 1 Aviation Circle.

  • Of all flights leaving Washington Ronald Reagan Airport, 71% touch down on time at their destination.

  • To get to Washington Ronald Reagan Airport from central Washington DC, it'll take around 10 minutes if you're travelling by car. This depends on traffic though. It's approximately 6 kilometres from the airport to the city centre.

  • The journey when using public transport will take about 25 minutes.

  • Get your break off to a leisurely start by staying near DCA. Whether you're taking an early flight from Washington Ronald Reagan Airport to Dublin Airport or just don't like being rushed, these hotels are perfect:

Arriving at Dublin Airport (DUB)

When to fly to Dublin Airport (DUB)

  • The quietest month for a flight from Washington Ronald Reagan Airport to Dublin Airport is March, while July is the busiest. Pick the best time to visit Dublin based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Dublin is July, with the temperature ranging between 10ºC (50ºF) and 19ºC (66ºF). Lock in your flights from Washington Ronald Reagan Airport to Dublin Airport in this month if this is the kind of weather you like.

  • Search for cheap tickets from DCA to DUB in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 2ºC (36ºF) and 9ºC (48ºF) on average.

Explore more of Ireland

  • You've done Dublin, now it's time to discover other corners of Ireland. Travel about 225 kilometres south-west to Cork to tick off its leading attractions. From Blarney Castle & Gardens to Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone, your itinerary will be busy.

Plan smart, explore more

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.