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Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from £277

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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
15 Apr — 22 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or November, booked 4 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 16 March 2026.

Mon 20/420:20
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Thu 30/419:05
DUB
-
IAD
1 stop26h 55m
Scandinavian Airlines
Deal found 14/3£379
Fri 16/1020:20
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Tue 27/1011:30
DUB
-
IAD
2 stops34h 45m
Scandinavian Airlines
Deal found 12/3£395
Mon 7/917:40
IAD
-
DUB
1 stop20h 55m
Multiple Airlines
Mon 14/920:30
DUB
-
IAD
1 stop24h 20m
Multiple Airlines
Deal found 11/3£397
Mon 20/420:20
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Wed 29/419:05
DUB
-
IAD
1 stop26h 55m
Scandinavian Airlines
Deal found 11/3£400
Sun 26/420:20
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Thu 30/412:40
DUB
-
IAD
1 stop33h 20m
Scandinavian Airlines
Deal found 12/3£401
Fri 16/1020:20
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sat 24/1010:15
DUB
-
IAD
1 stop11h 45m
Scandinavian Airlines
Deal found 11/3£404
Mon 5/1020:20
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Thu 15/1019:50
DUB
-
IAD
2 stops26h 10m
Scandinavian Airlines
Deal found 14/3£410

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 16 March 2026.

Round-trip from

£379

One-way from

£277

Popular in

December

Cheapest in

January

Average price

£506

Good round-trip deal

£628 or less

Good one-way deal

£280 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 20/4-30/4
  • 2 total stops
  • 43h 55m total
  • Washington, D.C. to Dublin
Search Deals
21/6
  • 21/6
  • 2 total stops
  • 26h 10m total
  • Washington, D.C. to Dublin
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 16 March 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

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 8/8

21:30-19:30

1 stop17h 00m

Dublin

Fri 21/8

20:10-20:20

1 stop29h 10m

£435

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 2/5

19:10-07:20

Nonstop7h 10m

Dublin

Mon 11/5

08:50-11:50

Nonstop8h 00m

£473
Fastest return journey

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 6/8

19:15-07:20

Nonstop7h 05m

Dublin

Sat 15/8

08:50-11:50

Nonstop8h 00m

£500

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 26/5

22:11-07:45

1 stop28h 34m

Dublin

Tue 2/6

09:50-11:55

2 stops31h 05m

£512

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 7/4

06:15-09:45

1 stop22h 30m

Dublin

Thu 16/4

09:50-16:30

2 stops35h 40m

£531

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 20/4

17:26-09:45

1 stop11h 19m

Dublin

Thu 30/4

08:50-11:50

Nonstop8h 00m

£535

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 29/4

22:25-10:40

Nonstop7h 15m

Dublin

Wed 6/5

09:30-16:27

1 stop11h 57m

£537

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 6/4

22:25-10:40

Nonstop7h 15m

Dublin

Thu 23/4

12:30-15:35

Nonstop8h 05m

£539

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 20/4

17:26-09:45

1 stop11h 19m

Dublin

Wed 29/4

12:30-15:35

Nonstop8h 05m

£539

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 18/5

13:32-10:25

2 stops15h 53m

Dublin

Mon 1/6

08:55-23:39

2 stops19h 44m

£540

Flights are sorted by cheapest return flights first.

Deals found on 12/3

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 13 March 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 4 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 £280). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of £406). 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 16 March 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 13 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?

    British Airways and United Airlines can get you from Washington, D.C. Dulles Intl Airport to Dublin in just under 7h 10m. Your travel time can differ by up to 9h 50m. 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 (97%), Aer Lingus (97%) or Iberia (97%) 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 £511, our data indicates the cheapest price to be £280. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around £467.

  • 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 £280). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of £406). 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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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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