Cheap flights from Dublin to Washington, D.C. Dulles Intl Airport from £293

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in February or January, booked 73 days in advance, depart on a Tuesday or Thursday and return on a Sunday

Cheap flight deals from Dublin to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Dulles Intl (IAD). 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 12 September 2025.

Round-trip from

£293

Popular in

August

Cheapest in

February

Average price

£387

Good round-trip deal

£487 or less

Good one-way deal

£398 or less
Icelandair
  • Icelandair
  • 5/12-8/12
  • 2 total stops
  • 21h 35m total
  • Dublin to Washington, D.C.
Highest demand for flights based on searches. 13% potential increase in price (£52 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Dublin to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Dublin to Washington, D.C. Dulles Intl.

Find flight deals from Dublin to Dulles Intl

Cheapest flights from Dublin to Dulles Intl
Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Fri 5/1211:30DUB - IAD
1 stop12h 00mIcelandair
Mon 8/1219:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 11/9£293
Mon 3/1109:10DUB - IAD
1 stop16h 05mLufthansa
Mon 10/1122:20IAD - DUB
Nonstop7h 00mLufthansa
Deal found 11/9£295
Wed 1/1005:55DUB - IAD
1 stop14h 20mLufthansa
Tue 14/1022:15IAD - DUB
Nonstop7h 05mLufthansa
Deal found 11/9£295
Wed 1/1005:55DUB - IAD
1 stop14h 20mMultiple Airlines
Tue 14/1020:45IAD - DUB
1 stop16h 05mMultiple Airlines
Deal found 11/9£297
Wed 1/1005:55DUB - IAD
1 stop14h 20mLufthansa
Wed 15/1022:15IAD - DUB
Nonstop7h 05mLufthansa
Deal found 11/9£299
Wed 1/1005:55DUB - IAD
1 stop19h 05mMultiple Airlines
Wed 15/1017:45IAD - DUB
1 stop13h 25mMultiple Airlines
Deal found 11/9£300
Wed 1/1005:55DUB - IAD
1 stop14h 20mLufthansa
Fri 10/1022:20IAD - DUB
1 stop13h 35mLufthansa
Deal found 10/9£302
Sun 26/1013:40DUB - IAD
1 stop11h 15mBritish Airways
Sun 2/1118:20IAD - DUB
1 stop10h 30mBritish Airways
Deal found 11/9£304
Tue 28/1012:30DUB - IAD
1 stop33h 45mScandinavian Airlines
Thu 13/1120:30IAD - DUB
1 stop16h 50mScandinavian Airlines
Deal found 10/9£310
Sat 25/1016:00DUB - IAD
Nonstop7h 55mAer Lingus
Sun 2/1121:00IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 12/9£312

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dublin to Dulles Intl 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 12 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

Dublin

Fly to

Dulles Intl

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

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

£297

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-20:00

1 stop19h 05m

Washington, D.C. Dulles Intl

Wed 15/10

17:45-12:10

1 stop13h 25m

£300

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

£312

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 11/2

11:30-17:15

2 stops34h 45m

Washington, D.C. Dulles Intl

Wed 18/2

20:30-10:00

2 stops32h 30m

£314

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 20/11

05:00-14:35

1 stop14h 35m

Washington, D.C. Dulles Intl

Tue 25/11

22:20-10:20

Nonstop7h 00m

£317

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

20:40-15:35

1 stop23h 55m

Washington, D.C. Dulles Intl

Sun 16/11

18:20-15:05

1 stop15h 45m

£319

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 3/11

09:10-20:15

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 18/11

22:20-10:20

Nonstop7h 00m

£319

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 1/11

05:10-16:50

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 17/11

22:20-10:20

Nonstop7h 00m

£319

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 20/11

05:00-20:15

1 stop20h 15m

Washington, D.C. Dulles Intl

Tue 25/11

20:30-17:45

1 stop16h 15m

£320

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 20 results
1
2

Best time to book a flight from Dublin to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Dublin 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 Dublin to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a return flight from Dublin to Dulles Intl. Price data was last updated on 29 August 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C. Dulles Intl Airport, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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 DUB to IAD?

Find hourly flight availability from Dublin to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 29% on flights from Dublin to Washington, D.C. Dulles Intl Airport by exploring options for tickets at midday.

How much does it cost for a return flight from Dublin to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 12 September 2025.
Check out reviews from past customers who have flown with United Airlines, Aer Lingus, andIcelandair from Dublin to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Dulles Intl. 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 from for flights from Dublin to Washington, D.C. Dulles Intl?

    For a flight from Dublin to Washington, D.C. Dulles Intl, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 11 outbound flights to Washington, D.C. Dulles Intl per day. 5 airlines have flights to Washington, D.C. Dulles Intl from Dublin on a regular basis.

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

    For as low as £312, Icelandair can have you in Washington, D.C. Dulles Intl Airport from Dublin in 7h 55m. Airlines will cover a distance of 3393 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Dublin to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Icelandair is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £292. Additional return tickets that might be worth considering are offered by British Airways and Lufthansa, with the lowest prices starting at £307 and £310, respectively. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 33% less than the average price by searching for these airlines.

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

    No one likes to see their flight delayed. When booking a flight from Dublin to Washington, D.C. Dulles Intl Airport consider choosing Qatar Airways (100%), Air Canada (72%) or United Airlines (72%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from Dublin to Washington, D.C. Dulles Intl Airport is £354. On average you can expect to pay £500. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £354.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dublin to Dulles Intl 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 Dublin to Washington, D.C. Dulles Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Woodbridge
Arlington
College Park
Tysons

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Alternative routes for Dublin to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Dublin to Dulles Intl

Discover the top 5 airlines that operate flights from Dublin to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£292Average£331FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£307Average£530FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£310Average£500FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£318Average£534FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£347Average£435FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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