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Cheap flights from Ireland to Washington, D.C. from £295

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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 10 June 2026.

Thu 26/1111:30
DUB
-
BWI
1 stop12h 10m
Icelandair
Sun 29/1119:40
BWI
-
DUB
1 stop9h 35m
Icelandair
Deal found 7/6£416
Fri 23/1012:50
DUB
-
BWI
1 stop11h 50m
British Airways
Sun 1/1120:35
BWI
-
DUB
1 stop10h 40m
British Airways
Deal found 7/6£427
Tue 3/1105:45
DUB
-
BWI
2 stops16h 03m
Delta
Sat 21/1113:00
BWI
-
DUB
2 stops13h 50m
Delta
Deal found 6/6£435
Wed 4/1105:45
DUB
-
BWI
2 stops16h 03m
Delta
Sun 22/1113:00
BWI
-
DUB
1 stop15h 45m
Delta
Deal found 6/6£437
Sat 5/1210:55
DUB
-
BWI
1 stop12h 50m
British Airways
Mon 14/1220:35
BWI
-
DUB
1 stop11h 00m
British Airways
Deal found 6/6£446
Tue 25/814:15
DUB
-
BWI
1 stop10h 10m
Icelandair
Tue 22/920:30
BWI
-
DUB
1 stop9h 35m
Icelandair
Deal found 8/6£450
Wed 26/812:15
DUB
-
BWI
1 stop12h 10m
Icelandair
Tue 1/920:30
BWI
-
DUB
1 stop9h 35m
Icelandair
Deal found 10/6£451
Thu 20/814:15
DUB
-
IAD
1 stop10h 05m
Icelandair
Tue 1/920:30
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 6/6£452
Tue 3/1109:30
DUB
-
DCA
1 stop9h 48m
United Airlines
Sat 21/1117:00
DCA
-
DUB
1 stop9h 30m
United Airlines
Deal found 6/6£452
Tue 20/1020:25
DUB
-
BWI
1 stop28h 15m
British Airways
Tue 3/1120:35
BWI
-
DUB
1 stop15h 25m
British Airways
Deal found 8/6£452
Wed 21/1011:40
DUB
-
IAD
2 stops34h 20m
Scandinavian Airlines
Wed 4/1120:30
IAD
-
DUB
2 stops33h 15m
Scandinavian Airlines
Deal found 10/6£452
Thu 20/814:15
DUB
-
IAD
1 stop10h 05m
Icelandair
Fri 28/823:20
IAD
-
DUB
1 stop30h 45m
Icelandair
Deal found 6/6£453

Find 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 10 June 2026.

Round-trip from

£416

One-way from

£295

Popular in

March

Cheapest in

September

Average price

£526

Good round-trip deal

£545 or less
Icelandair
  • Icelandair
  • 26/11-29/11
  • 2 total stops
  • 21h 45m total
  • Ireland to Washington, D.C.
Search Deals
5/10
  • 5/10
  • 2 total stops
  • 37h 02m total
  • Ireland to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Ireland to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 10 June 2026.
Use the filters below to find and compare flights from Ireland to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Tue 25/8

14:15-19:25

1 stop10h 10m

Baltimore/Washington

Tue 22/9

20:30-11:05

1 stop9h 35m

£450

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 23/10

12:50-19:40

1 stop11h 50m

Baltimore/Washington

Fri 6/11

20:35-15:05

1 stop13h 30m

£452

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 21/10

11:40-17:00

2 stops34h 20m

Washington, D.C. Dulles Intl

Wed 4/11

20:30-10:45

2 stops33h 15m

£452

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Tue 20/10

20:25-19:40

1 stop28h 15m

Baltimore/Washington

Tue 10/11

20:35-19:40

1 stop18h 05m

£452

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 21/10

12:50-19:40

1 stop11h 50m

Baltimore/Washington

Wed 4/11

20:35-12:15

1 stop10h 40m

£452

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 23/10

10:30-17:25

1 stop11h 55m

Washington, D.C. Dulles Intl

Fri 6/11

21:45-14:20

1 stop11h 35m

£452

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 21/10

10:30-17:25

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 4/11

18:20-09:40

1 stop10h 20m

£452

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 20/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 10/11

12:30-15:45

2 stops22h 15m

£455

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 21/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Wed 4/11

12:30-07:50

2 stops14h 20m

£455

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 28/10

05:45-21:55

2 stops20h 10m

Washington, D.C. Reagan-National

Sun 1/11

10:35-09:45

1 stop18h 10m

£458

Flights are sorted by cheapest return flights first.

Deals found on 9/6

Showing 1-10 of 49 resultsSorted by cheapest first
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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 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 Ireland to Washington, D.C.

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

Currently, September is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £135). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of £447). 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 10 June 2026.

When flying from Ireland to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 10 June 2026.

The most flights from IE0 to WAS are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (9 on average).

How often are flights from Ireland to Washington, D.C. delayed?

About 14% of weekly flights between Ireland and Washington, D.C. have experienced delays in the past year, with the average delay time being 153 minutes.

What is the most punctual flight time for Ireland to Washington, D.C. flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Washington, D.C. flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.

How far ahead should I book a flight from Ireland to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from Ireland to Washington, D.C., you should look to book at least 80 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.

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 10 June 2026.
Read reviews from past customers who have flown with United Airlines and Aer Lingus from Ireland to Washington, D.C.. 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.
United Airlines
7.4
Good
9,804 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,804 reviews
United Airlines
7.4
Good
9,804 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Aer Lingus
7.3
Good
1,599 reviews
United Airlines
7.4
Good
9,804 reviews
Check prices

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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.?

    There are many flights that can get you from Ireland to Washington, D.C. in 10h 10m. Fly via Icelandair, British Airways, or Scandinavian Airlines to get the fastest option. Ireland and Washington, D.C. are separated by a distance of 3351 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    While some choose either Dublin - Washington, D.C. Dulles Intl or Dublin - Washington, D.C. Reagan-National, Dublin - Baltimore/Washington is the most popular route from Ireland to Washington, D.C..

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Ireland to Washington, D.C. on time: Qatar Airways (93%), Lufthansa (92%), American Airlines (92%).

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

    On average you can expect to pay £1,296 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £434 while the most popular route, (Dublin - Baltimore/Washington) is currently priced at £496.

  • 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 holiday 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, September is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £135). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of £447). 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.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Alexandria

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from Ireland to Washington, D.C.

Discover the top 5 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 858,174 searches. Data last updated 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£297Average£416FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£324Average£420FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£336Average£600FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£342Average£449FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£373Average£475FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ireland to Washington, D.C.?

Cheapflights helps you search for flights from Ireland to Washington, D.C. via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ireland to Washington, D.C.?

Cheapflights simply makes it quick and affordable to book flights from Ireland to Washington, D.C. by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ireland to Washington, D.C. with no change fees?

Certainly. Search results for flights to Washington, D.C. from Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Ireland to Washington, D.C. become cheaper?

Of course! You can now track prices for flights from Ireland to Washington, D.C. 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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