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Cheap flights from Dublin to Washington, D.C. Dulles Intl Airport from £341

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
20 Apr — 27 Apr1
1 adult

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 Wednesday or Thursday and return on a Wednesday

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 15 April 2025.

Round-trip from

£380

One-way from

£341

Popular in

July

Cheapest in

February

Average price

£470

Good round-trip deal

£483 or less

Good one-way deal

£394 or less
Lufthansa
  • Lufthansa
  • 22/5-26/5
  • 1 total stop
  • 20h 50m total
  • Dublin to Washington, D.C.
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 10/9
  • 1 total stop
  • 15h 05m total
  • Dublin to Washington, D.C.
Highest demand for flights based on searches. 16% potential increase in price (£67 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Average for round-trip flights in April 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 15 April 2025.

Thu 22/510:40DUB - IAD
1 stop13h 45mLufthansa
Mon 26/522:15IAD - DUB
Nonstop7h 05mLufthansa
Deal found 14/4£380
Wed 18/612:15DUB - IAD
1 stop14h 55mIcelandair
Fri 11/723:15IAD - DUB
1 stop9h 00mIcelandair
Deal found 14/4£387
Thu 8/508:40DUB - IAD
1 stop12h 35mMultiple Airlines
Wed 28/522:15IAD - DUB
Nonstop7h 05mMultiple Airlines
Deal found 14/4£388
Sat 24/512:50DUB - IAD
Nonstop8h 00mAer Lingus
Sat 31/517:20IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 14/4£388
Fri 21/1118:55DUB - IAD
2 stops27h 20mScandinavian Airlines
Mon 24/1120:30IAD - DUB
2 stops33h 15mScandinavian Airlines
Deal found 14/4£389
Wed 30/412:45DUB - IAD
1 stop12h 25mBritish Airways
Sun 4/522:40IAD - DUB
1 stop10h 35mBritish Airways
Deal found 14/4£393
Thu 24/408:55DUB - IAD
1 stop11h 40mDelta
Fri 2/520:33IAD - DUB
2 stops13h 27mDelta
Deal found 14/4£394
Thu 24/409:50DUB - IAD
1 stop28h 56mUnited Airlines
Thu 1/519:00IAD - DUB
Nonstop7h 10mUnited Airlines
Deal found 15/4£394
Sat 10/508:40DUB - IAD
1 stop12h 35mSWISS
Sun 11/520:45IAD - DUB
1 stop16h 05mSWISS
Deal found 14/4£401
Mon 28/417:40DUB - IAD
2 stops25h 55mAustrian Airlines
Mon 5/517:50IAD - DUB
2 stops32h 30mAustrian Airlines
Deal found 14/4£432
Fri 1/809:50DUB - IAD
2 stops16h 14mAir Canada
Fri 8/810:25IAD - DUB
2 stops16h 20mAir Canada
Deal found 14/4£603
Wed 25/612:00DUB - IAD
2 stops33h 44mAir France
Thu 3/720:33IAD - DUB
2 stops33h 12mAir France
Deal found 15/4£615

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 15 April 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

Thu 22/5

10:40-19:25

1 stop13h 45m

Washington, D.C. Dulles Intl

Mon 26/5

22:15-10:20

Nonstop7h 05m

£380

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 18/6

12:15-22:10

1 stop14h 55m

Washington, D.C. Dulles Intl

Fri 11/7

23:15-13:15

1 stop9h 00m

£387

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 8/5

08:40-16:15

1 stop12h 35m

Washington, D.C. Dulles Intl

Wed 28/5

22:15-10:20

Nonstop7h 05m

£388

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 24/5

12:50-15:50

Nonstop8h 00m

Washington, D.C. Dulles Intl

Sat 31/5

17:20-05:10

Nonstop6h 50m

£388

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 30/4

12:45-20:10

1 stop12h 25m

Washington, D.C. Dulles Intl

Sun 4/5

22:40-14:15

1 stop10h 35m

£393

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 26/4

05:55-15:35

1 stop14h 40m

Washington, D.C. Dulles Intl

Fri 2/5

12:11-08:15

2 stops15h 04m

£394

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 28/4

09:50-11:39

1 stop30h 49m

Washington, D.C. Dulles Intl

Mon 5/5

19:00-07:10

Nonstop7h 10m

£394

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 10/5

08:40-16:15

1 stop12h 35m

Washington, D.C. Dulles Intl

Sun 11/5

20:45-17:50

1 stop16h 05m

£401

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 28/4

17:40-14:35

2 stops25h 55m

Washington, D.C. Dulles Intl

Mon 5/5

17:50-07:20

2 stops32h 30m

£432

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 29/5

12:40-19:59

1 stop12h 19m

Washington, D.C. Dulles Intl

Wed 10/9

22:05-18:15

1 stop15h 10m

£454

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 18 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 11 April 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 15 April 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Dublin to Washington, D.C. Dulles Intl Airport by exploring options for tickets at midday.

Weekly flight availability from Dublin to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Dublin to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 April 2025.

The most flights from DUB to IAD are scheduled on a Monday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 15 April 2025.
Read through reviews of airlines operating flights from Dublin to Washington, D.C., such as Delta, Austrian Airlines and Air France. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 10 outbound flights to Washington, D.C. Dulles Intl per day. 6 airlines have flights to Washington, D.C. Dulles Intl from Dublin on a regular basis.

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

    Flying on Lufthansa is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £380. Additional return tickets that might be worth considering are offered by Icelandair and Aer Lingus, with the lowest prices starting at £387 and £388, respectively. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 13% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Dublin to Washington, D.C. Dulles Intl Airport one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as £341. Users have also found prices from £495 and £646 on Turkish Airlines and British Airways, respectively.

  • 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 Lufthansa (90%), American Airlines (85%) or Aer Lingus (85%) 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 £381. On average you can expect to pay £543. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £296.

  • 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

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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 6 airlines flying from Dublin to Dulles Intl

Discover the top 6 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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£214Average£359FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£301Average£330FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£314Average£545FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£327Average£583FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£345Average£420FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£433Average£559FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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How does Cheapflights help users find flights from Dublin to Dulles Intl?

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Why should you use Cheapflights to find cheap flight tickets from Dublin to Dulles Intl?

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Can Cheapflights find flights from Dublin to Dulles Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Dulles Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Dublin to Dulles Intl become cheaper?

Of course! You can now track prices for flights from Dublin to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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