Washington, D.C.

$289+ Cheap flights from Ireland to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
5月 6 — 5月 131
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Cheap flight deals from Ireland to Washington, D.C.

Keep the following information in mind while searching for Ireland to Washington, D.C. flight deals. Data was last updated 5月 1, 2025.

Most accurate provider

Gurufare
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$293
(PLAY)

Popular in

July

Cheapest in

January

Average price

$530

Good round-trip deal

$657 or less

Good one-way deal

$456 or less
Provider with most accurate pricing for Dublin-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Dublin-Washington, D.C. (WAS) flights.
From Ireland to Washington, D.C. (WAS)
Highest demand for flights based on searches. 19% potential increase in price ($133 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in May 2025
Price to beat on a round-trip flight from Ireland to Washington, D.C. (WAS).
Price to beat on a one-way flight from Ireland to Washington, D.C. (WAS).

Find flight deals from Ireland to Washington, D.C.

Cheapest flights from Ireland to Washington, D.C.
Explore the most affordable flight options available from Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5月 1, 2025.

This Gotogate deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週四 11/2711:00 amDUB - BWI
1 stop10h 55mPLAY
週日 11/306:05 pmBWI - DUB
1 stop10h 35mPLAY
Deal found 4/30$289
This Gotogate deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 11/77:05 pmDUB - IAD
1 stop27h 10mScandinavian Airlines
週二 11/118:30 pmIAD - DUB
1 stop16h 50mScandinavian Airlines
Deal found 4/30$440
This Iberia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 9/512:45 pmDUB - IAD
1 stop12h 25mBritish Airways
週六 9/137:25 pmIAD - DUB
1 stop11h 30mBritish Airways
Deal found 4/30$445
This Iberia deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 10/2112:45 pmDUB - BWI
1 stop11h 50mBritish Airways
週二 10/289:30 pmBWI - DUB
1 stop10h 35mBritish Airways
Deal found 4/30$447
This Air France deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週四 5/158:55 amDUB - IAD
1 stop11h 40mMultiple Airlines
週一 5/269:20 pmIAD - DUB
1 stop12h 40mMultiple Airlines
Deal found 4/30$449
This Travelocity deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 9/512:50 pmDUB - IAD
Nonstop8h 00mAer Lingus
週六 9/138:25 pmIAD - DUB
Nonstop6h 55mAer Lingus
Deal found 4/30$451
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 5/108:55 amDUB - IAD
1 stop11h 40mDelta
週一 5/197:05 amIAD - DUB
1 stop20h 40mDelta
Deal found 4/30$452
This KLM deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 5/208:55 amDUB - IAD
1 stop11h 40mKLM
週二 5/275:25 pmIAD - DUB
1 stop14h 10mKLM
Deal found 4/29$453
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 5/161:20 pmDUB - DCA
2 stops14h 25mDelta
週二 5/201:15 pmDCA - DUB
1 stop16h 30mDelta
Deal found 4/30$458
This SmartFares deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 5/122:15 pmDUB - BWI
1 stop10h 10mIcelandair
週一 5/198:30 pmBWI - DUB
1 stop11h 45mIcelandair
Deal found 4/30$465
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週五 9/511:45 amDUB - DCA
1 stop13h 33mAmerican Airlines
週六 9/1311:50 amDCA - DUB
1 stop12h 40mAmerican Airlines
Deal found 4/30$477
This Icelandair deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週三 6/1812:15 pmDUB - IAD
1 stop12h 05mIcelandair
週五 7/118:30 pmIAD - DUB
1 stop11h 45mIcelandair
Deal found 4/30$510

Cheapflights Fare Finder

Customize your flight search to find flights from Ireland to Washington, D.C. 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 2,558,603 searches. Data last updated 5月 1, 2025.
Use the filters below to find and compare flights from Ireland to Washington, D.C. that are best for you.

Fly from

Ireland

Fly to

Washington, D.C.

Route

Depart

Return

Price

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

週三 10/22

11:35 am-5:40 pm

1 stop11h 05m

Baltimore/Washington

週五 10/31

7:05 pm-9:40 am

1 stop10h 35m

$293

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

週五 9/5

12:45 pm-8:10 pm

1 stop12h 25m

Washington, D.C. Dulles Intl

週六 9/13

7:25 pm-11:55 am

1 stop11h 30m

$445

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

週二 10/21

12:45 pm-7:35 pm

1 stop11h 50m

Baltimore/Washington

週二 10/28

9:30 pm-12:05 pm

1 stop10h 35m

$447

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

週四 5/15

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

週一 5/26

9:20 pm-3:00 pm

1 stop12h 40m

$449

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

週五 9/5

12:50 pm-3:50 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

週六 9/13

8:25 pm-8:20 am

Nonstop6h 55m

$451

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

週六 5/10

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

週一 5/19

7:05 am-8:45 am

1 stop20h 40m

$452

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

週二 5/20

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

週二 5/27

5:25 pm-12:35 pm

1 stop14h 10m

$453

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

週五 5/16

1:20 pm-10:45 pm

2 stops14h 25m

Washington, D.C. Reagan-National

週二 5/20

1:15 pm-10:45 am

1 stop16h 30m

$458

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

週一 5/12

2:15 pm-7:25 pm

1 stop10h 10m

Baltimore/Washington

週一 5/19

8:30 pm-1:15 pm

1 stop11h 45m

$465

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

週五 9/5

11:45 am-8:18 pm

1 stop13h 33m

Washington, D.C. Reagan-National

週六 9/13

11:50 am-5:30 am

1 stop12h 40m

$477

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 60 results
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Best time to book a flight from Ireland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Ireland with our price prediction graph.
Estimated round-trip 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 Ireland to Washington, D.C.

What is the cheapest month to book a flight from Ireland to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of $309). Flying from Ireland to Washington, D.C. in June is currently the most expensive (average of $373). 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 IE to WAS?

Find hourly flight availability from Ireland to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5月 1, 2025.

When flying from Ireland to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 11% versus a flight in the morning.

Weekly flight availability from Ireland to Washington, D.C.

Explore weekly flight availability from Ireland to Washington, D.C.. 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 5月 1, 2025.

The most flights from IE0 to WAS 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 Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 5月 1, 2025.
To help decide which airline to fly from Ireland to Washington, D.C., see what other customers have to say about Delta, KLM and Austrian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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
8.0
Very good

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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 Ireland to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Ireland to Washington, D.C. one-way?

    $305 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on Icelandair and WestJet, with prices starting from $379 and $389, respectively.

  • What are the most popular routes from Ireland to Washington, D.C.?

  • What are the most reliable airlines from Ireland to Washington, D.C.?

    Consider Lufthansa (89%), Air Canada (89%) or United Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from Ireland to Washington, D.C..

  • What are the cheapest flights from Ireland to Washington, D.C.?

    On average you can expect to pay $1,048 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is $436 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at $434.

  • Can I find deals for flights from Ireland to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Ireland to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Washington, D.C..

  • Can I find deals for business class flights from Ireland to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Ireland to Washington, D.C. 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 Ireland to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of $309). Flying from Ireland to Washington, D.C. in June is currently the most expensive (average of $373). 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

Traveling to a place near Ireland?

Book flights to Ireland if you plan to visit one of these locations
Alexandria
Arlington
Woodbridge
Tysons
Fairfax
Springfield
Rockville
Fredericksburg
Silver Spring
Gaithersburg
Linthicum Heights
Falls Church
Laurel
Easton
Towson
Herndon
Bowie
National Harbor
Oxon Hill
Reston

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ireland to Washington, D.C.

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

Top 4 airlines flying from Ireland to Washington, D.C.

Discover the top 4 airlines that operate flights from Ireland to Washington, D.C.. 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 2,558,603 searches. Data last updated 5月 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$281Average$440FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$420Average$547FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$433Average$623FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$612Average$744FlexibilityNo cancel feeOn-time69%

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