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Cheap flights from Ireland to Washington, D.C. from £239

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 22/9. 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.

Scandinavian Airlines Logo
19:05 - 19:59DUB-IAD
29h 54m1 stop
Scandinavian Airlines Logo
22:05 - 18:15IAD-DUB
15h 10m1 stop
£302Scandinavian Airlines
Find Deal
Mon, 22 Sep - Tue, 30 Sep
Scandinavian Airlines Logo
12:30 - 18:15DUB-IAD
33h 45m1 stop
Scandinavian Airlines Logo
20:30 - 09:25IAD-DUB
31h 55m1 stop
£304Scandinavian Airlines
Find Deal
Tue, 28 Oct - Thu, 13 Nov
Scandinavian Airlines Logo
10:15 - 19:59DUB-IAD
14h 44m1 stop
Scandinavian Airlines Logo
22:05 - 10:55IAD-DUB
31h 50m2 stops
£305Scandinavian Airlines
Find Deal
Sat, 20 Sep - Sat, 27 Sep
Scandinavian Airlines Logo
19:05 - 19:59DUB-IAD
29h 54m1 stop
Scandinavian Airlines Logo
22:05 - 09:25IAD-DUB
30h 20m1 stop
£306Scandinavian Airlines
Find Deal
Mon, 13 Oct - Thu, 23 Oct
Aer Lingus Logo
16:00 - 18:55DUB-IAD
7h 55mdirect
Aer Lingus Logo
21:00 - 08:50IAD-DUB
6h 50mdirect
£324Aer Lingus
Find Deal
Mon, 22 Sep - Tue, 30 Sep
Icelandair Logo
11:30 - 18:20DUB-IAD
11h 50m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
£326Icelandair
Find Deal
Tue, 11 Nov - Sun, 16 Nov
Icelandair Logo
14:15 - 19:20DUB-IAD
10h 05m1 stop
Icelandair Logo
20:30 - 11:05IAD-DUB
9h 35m1 stop
£330Icelandair
Find Deal
Tue, 2 Sep - Sat, 6 Sep
Lufthansa Logo
05:55 - 20:00DUB-IAD
19h 05m1 stop
Lufthansa Logo
22:15 - 10:20IAD-DUB
7h 05mdirect
£365Lufthansa
Find Deal
Fri, 5 Sep - Fri, 12 Sep
Lufthansa Logo
12:30 - 15:35DUB-IAD
8h 05mdirect
Lufthansa Logo
22:15 - 10:20IAD-DUB
7h 05mdirect
£379Lufthansa
Find Deal
Fri, 5 Sep - Fri, 12 Sep
British Airways Logo
08:50 - 16:35DUB-IAD
11h 45m1 stop
British Airways Logo
18:20 - 12:35IAD-DUB
13h 15m1 stop
£386British Airways
Find Deal
Mon, 27 Oct - Mon, 3 Nov

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
13 Aug
DUB09:50Dublin
28h 47m
1 stop
IAD09:37Washington, D.C. Dulles Intl
20 Feb
IAD22:20Washington, D.C. Dulles Intl
7h 00m
DUB10:20Dublin
£572
Find similar
United Airlines
13 Aug
DUB09:50Dublin
28h 47m
1 stop
IAD09:37Washington, D.C. Dulles Intl
20 Feb
IAD22:20Washington, D.C. Dulles Intl
7h 00m
DUB10:20Dublin
£573
Find similar
United Airlines
13 Aug
DUB09:50Dublin
16h 14m
2 stops
IAD21:04Washington, D.C. Dulles Intl
20 Feb
IAD17:20Washington, D.C. Dulles Intl
9h 10m
1 stop
DUB07:30Dublin
£576
Find similar

Scandinavian Airlines flights from Ireland to Washington, D.C. Dulles Intl Airport

Our best Scandinavian Airlines deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Scandinavian Airlines
22 Sept
DUB19:05Dublin
29h 54m
1 stop
IAD19:59Washington, D.C. Dulles Intl
30 Sept
IAD22:05Washington, D.C. Dulles Intl
15h 10m
1 stop
DUB18:15Dublin
£302
Find similar
Scandinavian Airlines
28 Oct
DUB12:30Dublin
33h 45m
1 stop
IAD18:15Washington, D.C. Dulles Intl
13 Nov
IAD20:30Washington, D.C. Dulles Intl
31h 55m
1 stop
DUB09:25Dublin
£304
Find similar
Scandinavian Airlines
20 Sept
DUB10:15Dublin
14h 44m
1 stop
IAD19:59Washington, D.C. Dulles Intl
27 Sept
IAD22:05Washington, D.C. Dulles Intl
31h 50m
2 stops
DUB10:55Dublin
£305
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 279,928 searches. Data last updated 7 August 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

Mon 22/9

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Tue 30/9

22:05-18:15

1 stop15h 10m

£302

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 28/10

12:30-18:15

1 stop33h 45m

Washington, D.C. Dulles Intl

Thu 13/11

20:30-09:25

1 stop31h 55m

£304

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 20/9

10:15-19:59

1 stop14h 44m

Washington, D.C. Dulles Intl

Sat 27/9

22:05-10:55

2 stops31h 50m

£305

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 13/10

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Thu 23/10

22:05-09:25

1 stop30h 20m

£306

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 22/9

16:00-18:55

Nonstop7h 55m

Washington, D.C. Dulles Intl

Tue 30/9

21:00-08:50

Nonstop6h 50m

£324

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

11:30-18:20

1 stop11h 50m

Washington, D.C. Dulles Intl

Sun 16/11

19:40-10:15

1 stop9h 35m

£326

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 2/9

14:15-19:20

1 stop10h 05m

Washington, D.C. Dulles Intl

Sat 6/9

20:30-11:05

1 stop9h 35m

£330

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/9

05:55-20:00

1 stop19h 05m

Washington, D.C. Dulles Intl

Fri 12/9

22:15-10:20

Nonstop7h 05m

£365

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/9

12:30-15:35

Nonstop8h 05m

Washington, D.C. Dulles Intl

Fri 12/9

22:15-10:20

Nonstop7h 05m

£379

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 27/10

08:50-16:35

1 stop11h 45m

Washington, D.C. Dulles Intl

Mon 3/11

18:20-12:35

1 stop13h 15m

£386

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 £346. 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 January instead. Flights to Washington, D.C. Dulles Intl Airport in January, while not as cheap as those in February, still average around £377.

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 £540. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £631.

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

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is at midday when flights can be purchased for as low as £422. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the morning when prices are around £584.

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 £444 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 £357 on momondo.

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

There are 3 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.

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

£239

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 £239. The best return flight deal from Ireland to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is £302.
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 refreshed on a daily basis.

  • 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 required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable 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 £297Free CancellationRating
7.0
524 reviews
Search Icelandair flights
British AirwaysPriceFrom £310Free CancellationRating
6.6
7,245 reviews
Search British Airways flights
LufthansaPriceFrom £315Free CancellationRating
6.8
7,289 reviews
Search Lufthansa flights
United AirlinesPriceFrom £323Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights
Aer LingusPriceFrom £339Free CancellationRating
7.1
1,201 reviews
Search Aer Lingus flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Winchester
Laurel
Essex
Alexandria
Fairfax
Manassas
Bethesda
Oxon Hill
Chantilly
College Park
Linthicum Heights
Gettysburg
Front Royal
Hanover
Cambridge
Ellicott City
Westminster
Arlington
Ashburn
Woodbridge

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Washington, D.C. from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Ireland.

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

If you are not ready to book a flight from Ireland to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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