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Cheap flights from Dublin to Washington, D.C. from £259

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Washington, D.C. departing on 7/11. 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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Cheap return flights

Icelandair Logo
11:30 - 18:30DUB-IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
£293Icelandair
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Fri, 5 Dec - Mon, 8 Dec
Icelandair Logo
11:30 - 18:30DUB-IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
£294Icelandair
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Lufthansa Logo
09:10 - 20:15DUB-IAD
16h 05m1 stop
Lufthansa Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
£294Lufthansa
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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
£295Lufthansa
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Wed, 1 Oct - Tue, 14 Oct
British Airways Logo
13:40 - 20:55DUB-IAD
11h 15m1 stop
British Airways Logo
18:20 - 09:50IAD-DUB
10h 30m1 stop
£304British Airways
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Sun, 26 Oct - Sun, 2 Nov
Aer Lingus Logo
16:00 - 18:55DUB-IAD
7h 55mdirect
Aer Lingus Logo
21:00 - 08:50IAD-DUB
6h 50mdirect
£311Aer Lingus
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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
£312Aer Lingus
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Wed, 1 Oct - Tue, 14 Oct
British Airways Logo
08:50 - 15:35DUB-IAD
11h 45m1 stop
British Airways Logo
18:20 - 09:50IAD-DUB
10h 30m1 stop
£318British Airways
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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
£331United 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
£332United Airlines
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Tue, 11 Nov - Sun, 16 Nov

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

Our best Aer Lingus deals on Dublin 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
£311
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
£312
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
£319
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United Airlines flights from Dublin to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Dublin 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
IAD19:05Washington, D.C. Dulles Intl
7h 05m
DUB07:10Dublin
£325
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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
£331
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
£332
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Dublin 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 13 September 2025.
Use the filters below to find and compare flights from Dublin 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

Fri 5/12

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 8/12

19:40-10:15

1 stop9h 35m

£293

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/12

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 8/12

19:40-10:15

1 stop9h 35m

£294

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

£294

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

£295

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 26/10

13:40-20:55

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 2/11

18:20-09:50

1 stop10h 30m

£304

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

£311

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

£312

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

08:50-15:35

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 16/11

18:20-09:50

1 stop10h 30m

£318

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

£331

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

£332

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 Dublin 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 Dublin, with most prices found around £363. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. Dulles Intl Airport from Dublin during November instead. Flights to Washington, D.C. Dulles Intl Airport in November, while not as cheap as those in February, still average around £374.

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

According to our data, Tuesday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Dublin. The lowest ticket price found for a Tuesday departure recently was £533. 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 Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £621.

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 £415. 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 £577.

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

Fly from Dublin to Washington, D.C. Dulles Intl for the best Dublin - 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 Dublin 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 £446 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 Dublin for as low as £350 on momondo.

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

There are 2 cabin classes available to choose from on Dublin 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.

How have Dublin to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of September 2025, prices for Dublin to Washington, D.C. Dulles Intl Airport flights are approximately 35% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to Washington, D.C. Dulles Intl Airport (DUB to IAD) flight deals and tips

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

Best price found

£398

Fastest flight time

7h 55m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Dublin in the past 72 hours is £398. The best return flight deal from Dublin to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is £487.
The fastest flight from Dublin to Washington, D.C. Dulles Intl Airport takes 7h 55m
Direct flights go from Dublin to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Dublin to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 3393.9 mi away from Dublin. A reasonable flight in good conditions will take 7h 55m.

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

    Prices for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Washington, D.C. Dulles Intl Airport.

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

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

  • What is the most popular airline from Dublin to Washington, D.C. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Dublin to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £292Free CancellationRating
7.0
546 reviews
Search Icelandair flights
British AirwaysPriceFrom £307Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
LufthansaPriceFrom £309Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
United AirlinesPriceFrom £318Free CancellationRating
7.4
8,936 reviews
Search United Airlines flights
Aer LingusPriceFrom £347Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights

  • United Airlines Flights From Dublin to Washington, D.C. Dulles Intl Airport

    United Airlines flies from Dublin to Washington, D.C. Dulles Intl Airport around 13 times per week, with 8,936 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Dublin to Washington, D.C. Dulles Intl Airport in the last 72 hours was £431 (round-trip), much lower than the average airfare cost of £724 for United Airlines flights on this route.

  • Aer Lingus Flights From Dublin to Washington, D.C. Dulles Intl Airport

    Aer Lingus is also a popular choice for this route. Aer Lingus flight deals for Dublin to Washington, D.C. Dulles Intl Airport start from as low as £470 round-trip, depending on your selected dates, with average Aer Lingus deals seen on momondo around £589. Aer Lingus operates 11 flights to Washington, D.C. Dulles Intl Airport from Dublin in an average week. Users have rated it 7.2/10 across 1,271 reviews.

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
Gettysburg
Front Royal
Cambridge
Ellicott City
Arlington
Westminster
Ashburn
Woodbridge
Owings Mills
Sterling
Silver Spring
National Harbor

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Dublin.

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

momondo does allow users to show only those flights to Washington, D.C. from Dublin which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Dublin to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Dublin to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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