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Washington, D.C.

$302+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$373
(oojo)

One-way from

$302
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$504

Good round-trip deal

$790 or less

Good one-way deal

$520 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 ($91 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amDUB - BWI
1 stop11h 05mPLAY
Sun 9/286:50 pmBWI - DUB
1 stop10h 20mPLAY
Deal found 9/10$366
This oojo deal was found by Cheapflights users on 9/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:30 amDUB - IAD
1 stop12h 00mIcelandair
Sun 11/307:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 9/11$373
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amDUB - BWI
1 stop11h 05mPLAY
Sat 9/276:50 pmBWI - DUB
1 stop10h 30mPLAY
Deal found 9/10$377
This Booking.com deal was found by Cheapflights users on 9/10. 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.
Sat 9/2011:35 amDUB - BWI
1 stop11h 05mPLAY
Sat 9/276:50 pmBWI - DUB
1 stop10h 30mPLAY
Deal found 9/10$384
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amDUB - BWI
1 stop11h 05mPLAY
Wed 9/246:50 pmBWI - DUB
1 stop10h 20mPLAY
Deal found 9/10$390
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1911:35 amDUB - BWI
1 stop11h 05mPLAY
Sun 9/286:50 pmBWI - DUB
1 stop10h 20mPLAY
Deal found 9/10$392
This PLAY deal was found by Cheapflights users on 9/11. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:35 amDUB - BWI
1 stop11h 05mPLAY
Fri 9/266:50 pmBWI - DUB
1 stop10h 15mPLAY
Deal found 9/11$394
This Icelandair deal was found by Cheapflights users on 9/10. 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.
Fri 12/511:30 amDUB - IAD
1 stop12h 00mIcelandair
Mon 12/87:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 9/10$397
This SmartFares deal was found by Cheapflights users on 9/10. 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.
Mon 11/311:30 amDUB - IAD
1 stop12h 00mIcelandair
Tue 11/187:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 9/10$399
This TravelUp deal was found by Cheapflights users on 9/11. 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.
Wed 10/15:55 amDUB - IAD
1 stop14h 20mLufthansa
Tue 10/1410:15 pmIAD - DUB
Nonstop7h 05mLufthansa
Deal found 9/11$400
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2011:35 amDUB - BWI
1 stop11h 05mPLAY
Wed 9/246:50 pmBWI - DUB
1 stop10h 20mPLAY
Deal found 9/10$402
This TravelUp deal was found by Cheapflights users on 9/11. 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.
Wed 10/15:55 amDUB - IAD
1 stop14h 20mMultiple Airlines
Tue 10/148:45 pmIAD - DUB
1 stop16h 05mMultiple Airlines
Deal found 9/11$402

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 September 11, 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

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 12/5

11:30 am-6:30 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 12/8

7:40 pm-10:15 am

1 stop9h 35m

$397

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 10/1

5:55 am-3:15 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Tue 10/14

8:45 pm-5:50 pm

1 stop16h 05m

$402

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sat 9/27

11:35 am-5:40 pm

1 stop11h 05m

Baltimore/Washington

Wed 10/1

6:50 pm-10:10 am

1 stop10h 20m

$407

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 10/1

5:55 am-8:00 pm

1 stop19h 05m

Washington, D.C. Dulles Intl

Wed 10/15

5:45 pm-12:10 pm

1 stop13h 25m

$407

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sun 10/26

10:45 am-7:45 pm

1 stop13h 00m

Baltimore/Washington

Sun 11/2

8:35 pm-4:50 pm

1 stop15h 15m

$411

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 10/31

10:45 am-4:35 pm

1 stop33h 50m

Washington, D.C. Dulles Intl

Sat 11/8

9:45 pm-12:45 pm

1 stop10h 00m

$418

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 2/11

11:30 am-5:15 pm

2 stops34h 45m

Washington, D.C. Dulles Intl

Wed 2/18

8:30 pm-10:00 am

2 stops32h 30m

$425

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 11/20

5:00 am-2:35 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Tue 11/25

10:20 pm-10:20 am

Nonstop7h 00m

$430

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 11/3

9:10 am-8:15 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 11/18

10:20 pm-10:20 am

Nonstop7h 00m

$432

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 10/26

8:40 pm-4:35 pm

1 stop23h 55m

Washington, D.C. Dulles Intl

Mon 11/3

6:20 pm-9:50 am

1 stop10h 30m

$432

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 $292). Flying from Ireland to Washington, D.C. in April is currently the most expensive (average of $337). 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 September 11, 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 19% 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 September 11, 2025.

The most flights from IE0 to WAS are scheduled on a Tuesday (14 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 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 September 11, 2025.
See what other customers who have flown with United Airlines, Aer Lingus, and PLAY 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.
United Airlines
7.4
Good
8,937 reviews

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,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

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,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Aer Lingus
7.2
Good
1,271 reviews
United Airlines
7.4
Good
8,937 reviews

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,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
PLAY
7.0
Good
103 reviews
United Airlines
7.4
Good
8,937 reviews

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,Sep 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 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.

  • How long is the flight from Ireland to Washington, D.C.?

    Icelandair, PLAY, and British Airways can get you from Ireland to Washington, D.C. in just under 11h 05m. Your travel time can differ by up to 1h 55m. There are 3351 mi between Ireland and Washington, D.C.. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Ireland to Washington, D.C. one-way?

    $373 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 JetBlue, with prices starting from $381 and $435, 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.

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

    Consider Qatar Airways (100%), Air Canada (72%) or United Airlines (72%) 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 $837 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is $493 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at $404.

  • 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 $292). Flying from Ireland to Washington, D.C. in April is currently the most expensive (average of $337). 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
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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.
Heathrow to Dulles Intl flights
Charles de Gaulle to Dulles Intl flights
Frankfurt to Dulles Intl flights
Charles de Gaulle to Reagan-National flights
Orly to Dulles Intl flights
Heathrow to Reagan-National flights
Gatwick to Dulles Intl flights
Istanbul to Dulles Intl flights
London City to Dulles Intl flights
Bruxelles-National to Dulles Intl flights
Frankfurt to Reagan-National flights
Gatwick to Reagan-National flights
Amsterdam to Dulles Intl flights
Vienna to Dulles Intl flights
Madrid to Dulles Intl flights
Barcelona-El Prat to Dulles Intl flights
Leonardo da Vinci/Fiumicino to Dulles Intl flights
Munich to Dulles Intl flights
Stansted to Dulles Intl flights
Madrid to Reagan-National flights
Athens to Dulles Intl flights
Dublin to Dulles Intl flights
Bruxelles-National to Reagan-National flights
Zurich to Dulles Intl flights
Duesseldorf Intl to Dulles Intl flights
Istanbul to Reagan-National flights
Luton to Dulles Intl flights
Vicenza to Dulles Intl flights
Frederic Chopin to Dulles Intl flights
Berlin to Dulles Intl flights
Vienna to Reagan-National flights
Frederic Chopin to Reagan-National flights
Barcelona-El Prat to Reagan-National flights
Amsterdam to Reagan-National flights
Duesseldorf Intl to Reagan-National flights
Athens to Reagan-National flights
Berlin to Reagan-National flights
Lisbon to Dulles Intl flights
Malpensa to Dulles Intl flights
Geneva to Dulles Intl flights
Leonardo da Vinci/Fiumicino to Reagan-National flights
Malpensa to Reagan-National flights
Sabiha Gokcen to Dulles Intl flights
Munich to Reagan-National flights
Copenhagen to Dulles Intl flights
Dublin to Reagan-National flights
London City to Reagan-National flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$420Average$564FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$460Average$649FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$612Average$802FlexibilityNo cancel feeOn-time69%

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