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Washington, D.C.

$295+ Cheap flights from Ireland to Washington, D.C. (WAS)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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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 July 30, 2025.

Round-trip from

$330
(Mytrip)

One-way from

$295
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$715

Good round-trip deal

$659 or less

Good one-way deal

$614 or less
From Ireland to Washington, D.C. (WAS)
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One-way flight from Ireland to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 13% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Ireland to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Ireland to Washington, D.C. (WAS).
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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 July 30, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1311:35 amDUB - BWI
1 stop11h 05mPLAY
Sat 9/206:50 pmBWI - DUB
1 stop10h 30mPLAY
Deal found 7/30$330
This TravelUp deal was found by Cheapflights users on 7/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:45 pmDUB - BWI
1 stop12h 00mBritish Airways
Sun 9/79:35 pmBWI - DUB
1 stop11h 40mBritish Airways
Deal found 7/29$507
This Delta deal was found by Cheapflights users on 7/30. 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.
Tue 11/115:55 amDUB - IAD
1 stop15h 10mDelta
Sun 11/166:50 pmIAD - DUB
1 stop15h 55mDelta
Deal found 7/30$510
This 123 Milhas deal was found by Cheapflights users on 7/29. 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 123 Milhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:50 pmDUB - IAD
1 stop31h 00mTAP AIR PORTUGAL
Tue 10/286:30 pmIAD - DUB
1 stop24h 50mTAP AIR PORTUGAL
Deal found 7/29$513
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 10/2312:45 pmDUB - BWI
1 stop12h 00mAmerican Airlines
Sat 11/11:31 pmBWI - DUB
2 stops19h 14mAmerican Airlines
Deal found 7/30$515
This Booking.com deal was found by Cheapflights users on 7/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/112:20 pmDUB - IAD
2 stops36h 39mScandinavian Airlines
Wed 9/1010:05 pmIAD - DUB
1 stop32h 45mScandinavian Airlines
Deal found 7/30$515
This British Airways deal was found by Cheapflights users on 7/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2610:45 amDUB - IAD
1 stop14h 10mBritish Airways
Tue 11/49:45 pmIAD - DUB
1 stop14h 15mBritish Airways
Deal found 7/29$517
This Delta deal was found by Cheapflights users on 7/30. 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.
Tue 10/288:50 amDUB - DCA
2 stops17h 29mDelta
Thu 11/136:55 pmDCA - DUB
1 stop9h 25mDelta
Deal found 7/30$518
This Lufthansa deal was found by Cheapflights users on 7/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:00 amDUB - IAD
1 stop20h 15mLufthansa
Sun 11/1610:20 pmIAD - DUB
Nonstop7h 00mLufthansa
Deal found 7/28$518
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:20 amDUB - BWI
2 stops15h 20mMultiple Airlines
Sat 9/206:50 pmBWI - DUB
2 stops22h 10mMultiple Airlines
Deal found 7/30$520
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 10/2312:45 pmDUB - DCA
2 stops15h 12mAmerican Airlines
Fri 10/313:25 pmDCA - DUB
2 stops16h 40mAmerican Airlines
Deal found 7/30$521
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 9/112:45 pmDUB - IAD
1 stop32h 15mAmerican Airlines
Tue 9/910:40 pmIAD - DUB
1 stop11h 05mAmerican Airlines
Deal found 7/28$523

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 July 30, 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

Sat 9/13

11:35 am-5:40 pm

1 stop11h 05m

Baltimore/Washington

Sat 9/20

6:50 pm-10:20 am

1 stop10h 30m

$330

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Thu 9/4

12:45 pm-7:45 pm

1 stop12h 00m

Baltimore/Washington

Sun 9/7

9:35 pm-2:15 pm

1 stop11h 40m

$507

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

5:55 am-4:05 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Sun 11/16

6:50 pm-3:45 pm

1 stop15h 55m

$510

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 10/21

6:50 pm-8:50 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

Tue 10/28

6:30 pm-11:20 pm

1 stop24h 50m

$513

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Thu 10/23

12:45 pm-7:45 pm

1 stop12h 00m

Baltimore/Washington

Sat 11/1

1:31 pm-12:45 pm

2 stops19h 14m

$515

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 9/1

12:20 pm-7:59 pm

2 stops36h 39m

Washington, D.C. Dulles Intl

Wed 9/10

10:05 pm-11:50 am

1 stop32h 45m

$515

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 10/26

5:10 am-4:50 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

Sun 11/2

10:20 pm-10:20 am

Nonstop7h 00m

$517

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 10/28

8:50 am-10:19 pm

2 stops17h 29m

Washington, D.C. Reagan-National

Thu 11/13

6:55 pm-9:20 am

1 stop9h 25m

$518

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sat 9/13

7:20 am-5:40 pm

2 stops15h 20m

Baltimore/Washington

Sat 9/20

6:50 pm-10:00 pm

2 stops22h 10m

$520

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 10/23

12:45 pm-10:57 pm

2 stops15h 12m

Washington, D.C. Reagan-National

Fri 10/31

3:25 pm-12:05 pm

2 stops16h 40m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 56 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 $241). Flying from Ireland to Washington, D.C. in March is currently the most expensive (average of $290). 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 July 30, 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 15% 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 July 30, 2025.

The most flights from IE0 to WAS are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).

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 July 30, 2025.
See what other customers who have flown with Delta, KLM, and Austrian Airlines from Ireland to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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?

    $314 is the cheapest one-way deal found within the past few days, from WorldTicket. You may also be able to find cheap deals on TAP AIR PORTUGAL and Scandinavian Airlines, with prices starting from $385 and $417, respectively.

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

    When deciding which route to take from Ireland to Washington, D.C. consider Dublin - Washington, D.C. Dulles Intl, Dublin - Baltimore/Washington or Dublin - Washington, D.C. Reagan-National as they are the most popular.

  • 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 $241). Flying from Ireland to Washington, D.C. in March is currently the most expensive (average of $290). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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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.
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Amsterdam to Reagan-National flights
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Budapest to Reagan-National flights
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Top 3 airlines flying from Ireland to Washington, D.C.

Discover the top 3 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$425Average$608FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$446Average$595FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$569Average$756FlexibilityNo cancel feeOn-time69%

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