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Cheap flights from Ireland to Washington, D.C. from £228

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 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

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 27 November 2025.

Round-trip from

£297

One-way from

£228

Popular in

August

Cheapest in

January

Average price

£417

Good round-trip deal

£504 or less

Good one-way deal

£410 or less
Icelandair
  • Icelandair
  • 8/1-29/1
  • 2 total stops
  • 21h 45m total
  • Ireland to Washington, D.C.
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Icelandair
  • Icelandair
  • 18/12
  • 1 total stop
  • 12h 10m total
  • Ireland to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
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.

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 27 November 2025.

Fri 5/1211:30DUB - BWI
1 stop12h 10mIcelandair
Tue 9/1219:40BWI - DUB
1 stop9h 35mIcelandair
Deal found 26/11£298
Tue 23/1217:30DUB - IAD
2 stops52h 45mScandinavian Airlines
Wed 7/120:30IAD - DUB
1 stop34h 15mScandinavian Airlines
Deal found 26/11£346
Thu 18/1211:30DUB - IAD
1 stop12h 00mIcelandair
Fri 9/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 26/11£349
Thu 18/1211:30DUB - IAD
1 stop12h 00mIcelandair
Mon 5/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 26/11£350
Thu 11/1211:30DUB - IAD
1 stop12h 00mIcelandair
Thu 8/119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 25/11£351
Thu 11/1205:55DUB - IAD
1 stop15h 10mDelta
Thu 8/112:23IAD - DUB
2 stops22h 22mDelta
Deal found 25/11£367
Wed 26/1112:30DUB - IAD
1 stop33h 45mScandinavian Airlines
Mon 8/1220:30IAD - DUB
1 stop16h 50mScandinavian Airlines
Deal found 25/11£369
Wed 17/1209:45DUB - DCA
2 stops18h 23mDelta
Sat 10/111:10DCA - DUB
2 stops15h 40mDelta
Deal found 25/11£378
Tue 2/1216:20DUB - IAD
Nonstop8h 10mAer Lingus
Fri 5/1217:05IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 26/11£378
Tue 23/1211:30DUB - IAD
2 stops58h 45mScandinavian Airlines
Thu 8/120:30IAD - DUB
1 stop31h 55mScandinavian Airlines
Deal found 26/11£382
Wed 17/1210:20DUB - BWI
1 stop13h 25mBritish Airways
Sat 10/120:35BWI - DUB
1 stop11h 10mBritish Airways
Deal found 25/11£412
Mon 22/1220:40DUB - IAD
1 stop23h 55mBritish Airways
Fri 9/113:08IAD - DUB
2 stops20h 57mBritish Airways
Deal found 26/11£413

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 27 November 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

Thu 8/1

11:30-18:40

1 stop12h 10m

Baltimore/Washington

Thu 29/1

19:40-10:15

1 stop9h 35m

£297

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sat 10/1

11:30-18:40

1 stop12h 10m

Baltimore/Washington

Thu 29/1

19:40-10:15

1 stop9h 35m

£297

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sat 10/1

11:30-18:40

1 stop12h 10m

Baltimore/Washington

Sun 25/1

19:40-10:15

1 stop9h 35m

£297

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 13/5

12:40-16:50

1 stop33h 10m

Washington, D.C. Dulles Intl

Mon 25/5

20:20-18:20

1 stop17h 00m

£312

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 16/1

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Tue 20/1

19:40-10:15

1 stop9h 35m

£321

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 11/2

10:20-18:45

1 stop13h 25m

Baltimore/Washington

Wed 18/2

20:35-17:00

1 stop15h 25m

£330

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 30/1

08:50-18:45

1 stop14h 55m

Baltimore/Washington

Sun 1/2

20:35-12:15

1 stop10h 40m

£330

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sun 18/1

10:45-18:45

1 stop13h 00m

Baltimore/Washington

Tue 27/1

20:35-14:20

1 stop12h 45m

£330

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 4/3

20:40-18:45

1 stop27h 05m

Baltimore/Washington

Wed 11/3

21:35-17:00

1 stop15h 25m

£330

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 18/1

10:45-19:55

1 stop14h 10m

Washington, D.C. Dulles Intl

Tue 27/1

21:45-14:20

1 stop11h 35m

£330

Flights are sorted by cheapest return flights first.

Deals found on 26/11

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 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, February is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £215). Flying from Ireland to Washington, D.C. in June is currently the most expensive (average of £386). 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 27 November 2025.

It’s optimal to fly from Ireland to Washington, D.C. in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to 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 27 November 2025.

The most flights from IE0 to WAS are scheduled on a Monday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).

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

About 15% of weekly flights between Ireland and Washington, D.C. have experienced delays in the past year, with the average delay time being 151 minutes.

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

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

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

Monday 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 15% of flights being delayed.

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 27 November 2025.
Read reviews from past customers who have flown with United Airlines, Aer Lingus, andIcelandair 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
9,050 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,050 reviews
United Airlines
7.4
Good
9,050 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Aer Lingus
7.2
Good
1,382 reviews
United Airlines
7.4
Good
9,050 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.0
Good
582 reviews
United Airlines
7.4
Good
9,050 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
PLAY
7.0
Good
United Airlines
7.4
Good
9,050 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,594 reviews
United Airlines
7.4
Good
9,050 reviews
Check prices

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 12h 10m. Fly via Icelandair, Scandinavian Airlines, or British Airways 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 cheapest airlines to fly from Ireland to Washington, D.C. one-way?

    £228 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on TAP AIR PORTUGAL and British Airways, with prices starting from £343 and £365, respectively.

  • 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: Air Canada (91%), United Airlines (91%), Lufthansa (89%).

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

    On average you can expect to pay £510 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £389 while the most popular route, (Dublin - Baltimore/Washington) is currently priced at £333.

  • 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, February is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £215). Flying from Ireland to Washington, D.C. in June is currently the most expensive (average of £386). 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
Woodbridge
Arlington
Alexandria
College Park

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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
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
London City to Dulles Intl flights
Stansted to Dulles Intl flights
Gatwick to Reagan-National flights
Luton to Dulles Intl flights
Edinburgh to Dulles Intl flights
Manchester to Dulles Intl flights
Manchester to Reagan-National flights
London City to Reagan-National flights
Edinburgh to Reagan-National flights
Glasgow Intl to Dulles Intl flights
Birmingham to Dulles Intl flights
Glasgow Intl to Reagan-National flights
Birmingham to Reagan-National flights
Newcastle upon Tyne to Dulles Intl flights
Bristol to Dulles Intl flights
Bristol to Reagan-National flights
Belfast Intl to Dulles Intl flights
Southampton to Dulles Intl flights
Belfast City to Dulles Intl flights
Leeds to Dulles Intl flights
Southend to Dulles Intl flights
Belfast City to Reagan-National flights
Grimsby to Dulles Intl flights
Inverness to Reagan-National flights
Newcastle upon Tyne to Reagan-National flights
Cardiff to Dulles Intl flights
Aberdeen to Dulles Intl flights
Inverness to Dulles Intl flights
Leeds to Reagan-National flights
Frankfurt to Dulles Intl flights
Aberdeen to Reagan-National flights
Bruxelles-National to Dulles Intl flights
Grimsby to Reagan-National flights
Southampton to Reagan-National flights
Dublin to Dulles Intl flights
Norwich to Dulles Intl flights
Cardiff to Reagan-National flights
Madrid to Dulles Intl flights
Istanbul to Dulles Intl flights
Amsterdam to Dulles Intl flights

Top 6 airlines flying from Ireland to Washington, D.C.

Discover the top 6 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 27 November 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£222Average£335FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
LufthansaCheapest£300Average£437FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£315Average£385FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£315Average£521FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£339Average£548FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£340Average£455FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus 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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