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Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from £339

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in February or January, booked 45 days in advance, depart on a Sunday or Wednesday and return on a Tuesday

Cheap flight deals from Dulles Intl to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Dublin
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 January 2026.

Wed 4/222:30
IAD
-
DUB
1 stop30h 50m
TAP AIR PORTUGAL
Sun 8/204:25
DUB
-
IAD
1 stop15h 50m
TAP AIR PORTUGAL
Deal found 26/1£344
Mon 2/320:30
IAD
-
DUB
1 stop16h 50m
Scandinavian Airlines
Tue 10/312:30
DUB
-
IAD
1 stop33h 45m
Scandinavian Airlines
Deal found 26/1£362
Thu 26/220:30
IAD
-
DUB
1 stop16h 50m
Scandinavian Airlines
Tue 10/319:05
DUB
-
IAD
1 stop27h 10m
Scandinavian Airlines
Deal found 26/1£369
Mon 20/420:20
IAD
-
DUB
2 stops33h 35m
Scandinavian Airlines
Sat 25/420:00
DUB
-
IAD
2 stops25h 50m
Scandinavian Airlines
Deal found 26/1£373
Mon 20/420:20
IAD
-
DUB
2 stops33h 35m
Scandinavian Airlines
Thu 30/411:40
DUB
-
IAD
2 stops34h 10m
Scandinavian Airlines
Deal found 27/1£373
Mon 9/321:30
IAD
-
DUB
2 stops33h 15m
Scandinavian Airlines
Tue 17/311:30
DUB
-
IAD
2 stops34h 45m
Scandinavian Airlines
Deal found 26/1£377
Fri 17/420:20
IAD
-
DUB
2 stops17h 50m
Scandinavian Airlines
Wed 22/411:40
DUB
-
IAD
2 stops34h 10m
Scandinavian Airlines
Deal found 27/1£381
Tue 10/320:40
IAD
-
DUB
1 stop9h 35m
Icelandair
Tue 17/311:30
DUB
-
IAD
1 stop12h 00m
Icelandair
Deal found 27/1£390
Thu 26/220:30
IAD
-
DUB
1 stop16h 50m
Scandinavian Airlines
Wed 11/319:05
DUB
-
IAD
1 stop27h 10m
Scandinavian Airlines
Deal found 26/1£391
Wed 16/920:20
IAD
-
DUB
2 stops33h 00m
Scandinavian Airlines
Sun 20/910:15
DUB
-
IAD
1 stop11h 35m
Scandinavian Airlines
Deal found 27/1£395
Mon 2/320:30
IAD
-
DUB
1 stop16h 50m
Scandinavian Airlines
Wed 11/319:05
DUB
-
IAD
1 stop27h 10m
Scandinavian Airlines
Deal found 26/1£397
Sat 22/820:20
IAD
-
DUB
2 stops33h 05m
Scandinavian Airlines
Sun 30/819:15
DUB
-
IAD
2 stops26h 35m
Scandinavian Airlines
Deal found 26/1£399

Find flight deals from Dulles Intl to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 January 2026.

Round-trip from

£362

One-way from

£339

Popular in

December

Cheapest in

February

Average price

£432

Good round-trip deal

£468 or less

Good one-way deal

£278 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 2/3-10/3
  • 2 total stops
  • 50h 35m total
  • Washington, D.C. to Dublin
Search Deals
British Airways
  • British Airways
  • 1/4
  • 1 total stop
  • 11h 50m total
  • Washington, D.C. to Dublin
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Dublin.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Dublin.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dulles Intl to Dublin 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, Cheapflights users made 858,174 searches. Data last updated 28 January 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin that are best for you.

Fly from

Dulles Intl

Fly to

Dublin

Route

Depart

Return

Price

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 17/4

20:20-19:10

2 stops17h 50m

Dublin

Wed 22/4

11:40-16:50

2 stops34h 10m

£381

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 4/4

20:20-18:20

1 stop17h 00m

Dublin

Sat 11/4

20:00-16:50

2 stops25h 50m

£397

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 1/3

22:20-10:20

Nonstop7h 00m

Dublin

Fri 13/3

08:00-15:46

1 stop11h 46m

£425

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 2/3

22:20-10:20

Nonstop7h 00m

Dublin

Wed 11/3

08:00-15:46

1 stop11h 46m

£425

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 2/3

22:20-10:20

Nonstop7h 00m

Dublin

Fri 13/3

12:05-16:20

Nonstop8h 15m

£427

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 1/3

22:20-10:20

Nonstop7h 00m

Dublin

Tue 10/3

12:05-16:20

Nonstop8h 15m

£427

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 10/3

13:15-08:10

1 stop14h 55m

Dublin

Tue 17/3

12:05-16:20

Nonstop8h 15m

£428

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 29/4

19:10-07:20

Nonstop7h 10m

Dublin

Tue 5/5

09:50-15:34

1 stop10h 44m

£428

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 8/4

22:25-10:40

Nonstop7h 15m

Dublin

Wed 6/5

09:20-16:09

1 stop11h 49m

£428

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 1/4

19:15-12:05

1 stop11h 50m

£339

Flights are sorted by cheapest return flights first.

Deals found on 25/1

Showing 1-10 of 17 results
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Best time to book a flight from Dulles Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Dulles Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Dublin

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Dublin?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Dublin. Price data was last updated on 23 January 2026.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Dublin?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of £270). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of £394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to DUB?

Find hourly flight availability from Dulles Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 January 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Dublin as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl to Dublin, you will be flying into Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 5 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Dublin from Washington, D.C. Dulles Intl on a regular basis.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Dublin?

    Scandinavian Airlines and United Airlines can get you from Washington, D.C. Dulles Intl Airport to Dublin in just under 7h. Your travel time can differ by up to 10h. Washington, D.C. Dulles Intl Airport and Dublin are separated by a distance of 3393 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Dublin?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Dublin consider choosing American Airlines (92%), Aer Lingus (92%) or Iberia (92%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Dublin?

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Dublin? While on average our users pay £434, our data indicates the cheapest price to be £208. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around £344.

  • Can I find deals for flights from Dulles Intl to Dublin that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Dublin.

  • Can I find deals for business class flights from Dulles Intl to Dublin?

    Yes. Cheapflights offers flight deals from Dulles Intl to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Dublin?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of £270). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of £394). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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