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Cheap flights from Ireland to Washington, D.C. from €291

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington, D.C. departing on 20/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Washington, D.C.

Recent return flight deals from Ireland to Washington, D.C.

Icelandair Logo
11:30 - 18:30DUB-IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
€317Icelandair
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Tue, 25 Nov - Sun, 30 Nov
Icelandair Logo
11:30 - 18:30DUB-IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
€318Icelandair
Find Deal
Tue, 25 Nov - Sun, 30 Nov
Lufthansa Logo
09:10 - 20:15DUB-IAD
16h 05m1 stop
Lufthansa Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
€340Lufthansa
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Mon, 3 Nov - Mon, 10 Nov
Lufthansa Logo
05:55 - 15:15DUB-IAD
14h 20m1 stop
Lufthansa Logo
22:15 - 10:20IAD-DUB
7h 05mdirect
€341Lufthansa
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Wed, 1 Oct - Tue, 14 Oct
Logo
05:55 - 15:15DUB-IAD
14h 20m1 stop
Logo
20:45 - 17:50IAD-DUB
16h 05m1 stop
€343
Find Deal
Wed, 1 Oct - Tue, 14 Oct
Logo
05:55 - 15:15DUB-IAD
14h 20m1 stop
Logo
20:45 - 17:50IAD-DUB
16h 05m1 stop
€344
Find Deal
Wed, 1 Oct - Wed, 15 Oct
Aer Lingus Logo
16:00 - 18:55DUB-IAD
7h 55mdirect
Aer Lingus Logo
21:00 - 08:50IAD-DUB
6h 50mdirect
€360Aer Lingus
Find Deal
Sat, 25 Oct - Sun, 2 Nov
Aer Lingus Logo
16:35 - 19:30DUB-IAD
7h 55mdirect
Aer Lingus Logo
17:20 - 05:10IAD-DUB
6h 50mdirect
€360Aer Lingus
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Wed, 1 Oct - Tue, 14 Oct
United Airlines Logo
12:05 - 15:20DUB-IAD
8h 15mdirect
United Airlines Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
€383United Airlines
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Tue, 11 Nov - Sun, 16 Nov
United Airlines Logo
12:05 - 15:20DUB-IAD
8h 15mdirect
United Airlines Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
€383United Airlines
Find Deal
Tue, 11 Nov - Sun, 16 Nov

Aer Lingus flights from Ireland to Washington, D.C. Dulles Intl Airport

Our best Aer Lingus deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Aer Lingus
25 Oct
DUB16:00Dublin
7h 55m
IAD18:55Washington, D.C. Dulles Intl
2 Nov
IAD21:00Washington, D.C. Dulles Intl
6h 50m
DUB08:50Dublin
€360
Find similar
Aer Lingus
1 Oct
DUB16:35Dublin
7h 55m
IAD19:30Washington, D.C. Dulles Intl
14 Oct
IAD17:20Washington, D.C. Dulles Intl
6h 50m
DUB05:10Dublin
€360
Find similar
Aer Lingus
26 Oct
DUB12:15Dublin
8h 20m
IAD16:35Washington, D.C. Dulles Intl
2 Nov
IAD17:05Washington, D.C. Dulles Intl
6h 50m
DUB04:55Dublin
€366
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United Airlines flights from Ireland to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
27 Sept
DUB09:20Dublin
16h 45m
1 stop
IAD21:05Washington, D.C. Dulles Intl
1 Oct
IAD17:18Washington, D.C. Dulles Intl
9h 02m
1 stop
DUB07:20Dublin
€376
Find similar
United Airlines
11 Nov
DUB12:05Dublin
8h 15m
IAD15:20Washington, D.C. Dulles Intl
16 Nov
IAD22:20Washington, D.C. Dulles Intl
7h 00m
DUB10:20Dublin
€383
Find similar
United Airlines
11 Nov
DUB12:05Dublin
8h 15m
IAD15:20Washington, D.C. Dulles Intl
16 Nov
IAD22:20Washington, D.C. Dulles Intl
7h 00m
DUB10:20Dublin
€383
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 14 September 2025.
Use the filters below to find and compare flights from Ireland to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 25/11

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Sun 30/11

19:40-10:15

1 stop9h 35m

€317

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 25/11

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Sun 30/11

19:40-10:15

1 stop9h 35m

€318

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 3/11

09:10-20:15

1 stop16h 05m

Washington, D.C. Dulles Intl

Mon 10/11

22:20-10:20

Nonstop7h 00m

€340

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-15:15

1 stop14h 20m

Washington, D.C. Dulles Intl

Tue 14/10

22:15-10:20

Nonstop7h 05m

€341

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-15:15

1 stop14h 20m

Washington, D.C. Dulles Intl

Tue 14/10

20:45-17:50

1 stop16h 05m

€342

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-15:15

1 stop14h 20m

Washington, D.C. Dulles Intl

Wed 15/10

20:45-17:50

1 stop16h 05m

€344

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 25/10

16:00-18:55

Nonstop7h 55m

Washington, D.C. Dulles Intl

Sun 2/11

21:00-08:50

Nonstop6h 50m

€360

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

16:35-19:30

Nonstop7h 55m

Washington, D.C. Dulles Intl

Tue 14/10

17:20-05:10

Nonstop6h 50m

€360

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

12:05-15:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sun 16/11

22:20-10:20

Nonstop7h 00m

€383

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

12:05-15:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sun 16/11

22:20-10:20

Nonstop7h 00m

€383

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Ireland to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

The month of February is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Ireland, with most prices found around €419. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. Dulles Intl Airport from Ireland during November instead. Flights to Washington, D.C. Dulles Intl Airport in November, while not as cheap as those in February, still average around €432.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Ireland. The lowest ticket price found for a Thursday departure recently was €637. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is €786.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. momondo users have found flights departing from Ireland to Washington, D.C. Dulles Intl Airport in the afternoon for as low as €516. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around €689. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ireland to Washington, D.C. Dulles Intl flight route?

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around €515 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Ireland for as low as €404 on momondo.

What cabin class options are available on Ireland to Washington, D.C. Dulles Intl flights?

There are 2 cabin classes available to choose from on Ireland to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Ireland to Washington, D.C. Dulles Intl Airport.

Cheap Ireland to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C. Dulles Intl Airport

Best price found

€406

Fastest flight time

7h 55m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Ireland in the past 72 hours is €406. The best return flight deal from Ireland to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is €583.
The fastest flight from Ireland to Washington, D.C. Dulles Intl Airport takes 7h 55m
Direct flights go from Ireland to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • When did momondo last update prices for flights from Ireland to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Ireland to Washington, D.C. Dulles Intl Airport are updated daily.

  • How many operators does momondo search for flights from Ireland to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Ireland to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ireland to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Ireland to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Ireland to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom €294Free CancellationRating
7.0
546 reviews
Search Icelandair flights
Aer LingusPriceFrom €327Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights
United AirlinesPriceFrom €403Free CancellationRating
7.4
8,934 reviews
Search United Airlines flights

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Gettysburg

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Ireland to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ireland to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Ireland to Washington, D.C.?

momondo helps you find the best flight between Ireland and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ireland to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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