C$234 Cheap Flights from Washington Dulles (IAD) to Dublin (DUB)

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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 Airport to Dublin Airport? If you want to travel next month, return fares start from C$661. Find the lowest prices on one-way and return tickets right here.

Dublin.C$234 per passenger.Departing Mon., Aug. 31.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Mon., Aug. 31, arriving in Dublin.Price includes taxes and charges.From C$234, select.

Dublin.C$234 per passenger.Departing Tue., Jul. 21.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue., Jul. 21, arriving in Dublin.Price includes taxes and charges.From C$234, select.

Dublin.C$268 per passenger.Departing Tue., Sep. 1.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue., Sep. 1, arriving in Dublin.Price includes taxes and charges.From C$268, select.

Dublin.C$379 per passenger.Departing Thu., Oct. 15.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu., Oct. 15, arriving in Dublin.Price includes taxes and charges.From C$379, select.

Dublin.C$420 per passenger.Departing Tue., Dec. 8.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue., Dec. 8, arriving in Dublin.Price includes taxes and charges.From C$420, select.

Dublin.C$426 per passenger.Departing Tue., Nov. 3.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue., Nov. 3, arriving in Dublin.Price includes taxes and charges.From C$426, select.

Dublin.C$441 per passenger.Departing Sat., Jan. 9.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat., Jan. 9, arriving in Dublin.Price includes taxes and charges.From C$441, select.

Dublin.C$456 per passenger.Departing Fri., Apr. 16.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Fri., Apr. 16, arriving in Dublin.Price includes taxes and charges.From C$456, select.

Dublin.C$487 per passenger.Departing Mon., Mar. 15.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Mon., Mar. 15, arriving in Dublin.Price includes taxes and charges.From C$487, select.

Dublin.C$489 per passenger.Departing Tue., May 4.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue., May 4, arriving in Dublin.Price includes taxes and charges.From C$489, select.

Dublin.C$589 per passenger.Departing Wed., Sep. 9.One-way flight with Brussels Airlines.Outbound direct flight with Brussels Airlines departs from Washington Dulles on Wed., Sep. 9, arriving in Dublin.Price includes taxes and charges.From C$589, select.

Dublin.C$589 per passenger.Departing Sun., Aug. 2.One-way flight with Lufthansa.Outbound direct flight with Lufthansa departs from Washington Dulles on Sun., Aug. 2, arriving in Dublin.Price includes taxes and charges.From C$589, select.

Dublin.C$636 per passenger.Departing Mon., Jul. 27.One-way flight with Aer Lingus.Outbound direct flight with Aer Lingus departs from Washington Dulles on Mon., Jul. 27, arriving in Dublin.Price includes taxes and charges.From C$636, select.

Dublin.C$716 per passenger.Departing Wed., Feb. 3.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Washington Dulles on Wed., Feb. 3, arriving in Dublin.Price includes taxes and charges.From C$716, select.

Dublin.C$716 per passenger.Departing Mon., Nov. 16.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Mon., Nov. 16, arriving in Dublin.Price includes taxes and charges.From C$716, select.

Dublin.C$716 per passenger.Departing Fri., Oct. 2.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Fri., Oct. 2, arriving in Dublin.Price includes taxes and charges.From C$716, 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 July.

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Which airlines fly 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.

Dublin

10km from central Dublin

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from C$234

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Washington D.C. to Dublin: Flight information

The things to know before you go.

Cheapest flight found	C$234
Cheapest month to fly	July
Average flight time	7 hrs, 1 min
Most popular airline	Lufthansa
Average flights per week	115

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

How much are return flights from Washington Dulles to Dublin?

The best price we found for a return flight from Washington Dulles to Dublin is C$643. 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.

How long does it take to fly from Washington Dulles to Dublin?

7 hours and 1 minute is the average flight time from Washington Dulles to Dublin.

Which airlines fly direct from Washington Dulles to Dublin?

Lufthansa, American Airlines and Iberia fly direct from Washington Dulles to Dublin.

How many flights are there a week from Washington Dulles to Dublin?

As of July 2026, there are 115 flights per week flying from Washington Dulles to Dublin.

When is the cheapest time to fly from Washington Dulles to Dublin?

The cheapest month to fly from Washington Dulles to Dublin is usually September.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Dublin Airport on?

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, September 16, 2026.

Can I get a direct flight from Washington Dulles Airport to Dublin Airport?

Yes – the average flight time is 7 hours and 1 minute.

How can I find the best flight deal to Dublin?

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.

When is the best time to book flights to Dublin?

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.

Which is the cheapest airline to fly from Washington Dulles Airport to Dublin with?

Currently, Air Canada and Lufthansa offer the cheapest flight tickets to Dublin.

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

Around 7 hours is how long you can expect to be travelling on a direct flight from Washington Dulles Airport to Dublin Airport.
Dublin's timezone is UTC+0, which makes Dublin five hours ahead of Washington DC.
Choose from 22 weekly Washington Dulles Airport to Dublin Airport flights. The 17:10 departure with Aer Lingus is the earliest you can take. United Airlines operates the last service of the day at 23:05.
For a smooth journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably board your IAD to DUB flight.
Travelling during a peak time such as July? Major public holidays and other popular seasons can lead to longer queues and delays at airport checkpoints. Play it safe and get there up to four hours ahead of international flights and two hours before domestic departures.
Aer Lingus is your gateway to discovering Dublin (and perhaps some other exciting parts of Ireland!). Check out the direct flights from Washington Dulles Airport to Dublin Airport offered by this popular airline.
Aer Lingus is the top choice for travellers on this route.
With an impressive 89.08% of services arriving on schedule, Aer Lingus has the best on-time performance for IAD to DUB flights.
Consider adding a stopover when booking your ticket from Washington Dulles Airport to Dublin Airport. Simply uncheck 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Check out these options between IAD and DUB:
- Boston Logan International Airport
- Philadelphia International Airport
- Reykjavik Keflavik Airport

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

The cheapest price we've seen for a one-way Washington Dulles Airport to Dublin Airport flight is C$234. A round-trip ticket is currently C$643. Depending on the availability when you book, these fares may change.
To pick up cheap tickets from IAD to DUB, reserve your trip three months ahead of your departure date.
Schedule your trip for August. That's the cheapest month for flights from Washington Dulles Airport to Dublin Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest airfare across every month.
Snapping up cheap flights from IAD to DUB is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a lower fare pops up.
Tailor your flights with filters. Select your preferred arrival and departure times, airlines and total journey duration. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from Washington Dulles Airport to Dublin Airport.

Handy information about Washington Dulles Airport (IAD)

IAD is located at 1 Saarinen Circle.
Of the flights that depart from Washington Dulles Airport, 77% arrive on time at their destination.
To reach Washington Dulles Airport from central Washington DC, it takes around 45 minutes if you're going by car. Of course, this depends on traffic. It's approximately 40 kilometres from the airport to the city centre.
The trip when using public transport takes about 1 hour 10 minutes.
Get your travels off to a stress-free start by staying near IAD. Whether you're taking an early flight from Washington Dulles Airport to Dublin Airport or want to avoid feeling rushed, these stays are ideal:

Arriving at Dublin Airport (DUB)

The last thing you want is a lengthy journey to your hotel if you're getting in late on a Washington Dulles Airport to Dublin Airport flight. Book one of these accommodation options near DUB instead:
Hit the road running by picking up a Dublin Airport rental car. Grab your wheels from Easirent, Budget or Carhire and explore beyond Dublin's usual tourist stops.
Lock in the lowest price by booking your vehicle from Dublin Airport around two weeks before your travel date.

When to fly to Dublin Airport (DUB)

July is the busiest month for flights from Washington Dulles Airport to Dublin Airport. To escape the crowds, head to Dublin in March.
Lock in your flight from Washington Dulles Airport to Dublin Airport for July if you'd like to go to Dublin during its warmest month. Expect temperatures of between 10ºC (50ºF) and 19ºC (66ºF).
January has average temperatures of between 2ºC (36ºF) and 9ºC (48ºF). Look for cheap tickets from IAD to DUB sometime around then if you want to travel in cooler conditions.

Explore more of Ireland

Cork is just one of the many cities in Ireland waiting to be discovered once you've seen the sights of Dublin. Around 225 kilometres away to the south-west, popular attractions include Blarney Castle & Gardens, Blarney Castle House(Teach Caisleán na Blarnan) and Blarney Stone.