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

£227 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 British Airways, with prices starting from £356 and £478, respectively.

What is the cheapest day to fly from Ireland to Washington, D.C.?

Travellers seeking maximum savings on their Ireland to Washington, D.C. flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

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

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

On average you can expect to pay £527 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £364 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £290.

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

What are the most popular airlines that fly from Ireland to Washington, D.C.?

British Airways, Aer Lingus and Icelandair are the most popular airlines when flying from Ireland to Washington, D.C..

What is the cheapest day to fly round-trip from Ireland to Washington, D.C.?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 14% when planning your travel around this day of the week.

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

To save on the cost of your flight from Ireland to Washington, D.C., book at least 27 days before your planned departure. Booking around this time can save you about 149% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £371 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £520.

What is the cheapest month to fly from Ireland to Washington, D.C.?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from Ireland in January are about £419 on average during January, but can be found for as low as £206.

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.

£456+ Flights from Ireland to Washington, D.C.

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

Round-trip from	£219
Popular in	July
Cheapest in	January
Average price	£412
Good round-trip deal	£482 or less
Good one-way deal	£387 or less

PLAY
22/10-31/10
2 total stops
21h 40m total
Ireland to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£73 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Ireland to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from Ireland to Washington, D.C. (WAS).

Search Deals

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 30 April 2025.

Thu 27/1111:00DUB - BWI

1 stop10h 55mPLAY

Sun 30/1118:05BWI - DUB

1 stop10h 35mPLAY

Deal found 30/4£216

Fri 7/1119:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Tue 11/1120:30IAD - DUB

1 stop16h 50mScandinavian Airlines

Deal found 30/4£328

Mon 19/508:55DUB - IAD

1 stop11h 40mDelta

Mon 26/520:33IAD - DUB

2 stops13h 27mDelta

Deal found 28/4£334

Fri 23/512:15DUB - IAD

1 stop14h 55mIcelandair

Fri 30/523:15IAD - DUB

1 stop9h 00mIcelandair

Deal found 29/4£336

Thu 22/505:55DUB - IAD

1 stop14h 40mKLM

Wed 28/517:25IAD - DUB

1 stop14h 10mKLM

Deal found 29/4£338

Sun 11/513:20DUB - DCA

2 stops15h 24mDelta

Mon 19/513:15DCA - DUB

1 stop16h 30mDelta

Deal found 29/4£341

Fri 7/1111:30DUB - BWI

1 stop12h 00mIcelandair

Tue 11/1119:30BWI - DUB

1 stop9h 45mIcelandair

Deal found 30/4£372

Fri 31/1013:35DUB - IAD

1 stop11h 10mBritish Airways

Mon 17/1117:49IAD - DUB

2 stops13h 46mBritish Airways

Deal found 30/4£377

Fri 23/516:00DUB - IAD

Nonstop7h 55mAer Lingus

Fri 30/517:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 29/4£382

Thu 28/809:20DUB - DCA

1 stop11h 28mUnited Airlines

Thu 4/913:00DCA - DUB

1 stop13h 20mUnited Airlines

Deal found 29/4£383

Thu 28/809:20DUB - IAD

1 stop16h 41mUnited Airlines

Thu 4/922:15IAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 29/4£383

Mon 19/512:45DUB - BWI

1 stop11h 50mBritish Airways

Mon 26/521:20BWI - DUB

1 stop12h 20mBritish Airways

Deal found 28/4£387

Best flights from Ireland to Washington, D.C.
Discover carefully curated flight deals from Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 April 2025.

Wed 22/1011:35DUB - BWI

1 stop11h 05mPLAY

Fri 31/1019:05BWI - DUB

1 stop10h 35mPLAY

Deal found 30/4£219

Mon 19/508:55DUB - IAD

1 stop11h 40mDelta

Mon 26/520:33IAD - DUB

2 stops13h 27mDelta

Deal found 28/4£334

Fri 23/512:15DUB - IAD

1 stop14h 55mIcelandair

Fri 30/523:15IAD - DUB

1 stop9h 00mIcelandair

Deal found 29/4£336

Fri 23/519:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Fri 30/522:05IAD - DUB

2 stops30h 10mScandinavian Airlines

Deal found 29/4£352

Fri 23/516:00DUB - IAD

Nonstop7h 55mAer Lingus

Fri 30/517:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 29/4£382

Thu 28/809:20DUB - DCA

1 stop11h 28mUnited Airlines

Thu 4/913:00DCA - DUB

1 stop13h 20mUnited Airlines

Deal found 29/4£383

Mon 19/512:45DUB - BWI

1 stop11h 50mBritish Airways

Mon 26/521:20BWI - DUB

1 stop12h 20mBritish Airways

Deal found 28/4£387

Thu 22/508:40DUB - IAD

1 stop12h 35mMultiple Airlines

Wed 28/522:15IAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 29/4£393

Sun 11/510:40DUB - IAD

1 stop13h 45mLufthansa

Mon 19/522:05IAD - DUB

Nonstop7h 15mLufthansa

Deal found 29/4£395

Fri 16/518:40DUB - IAD

2 stops24h 35mSWISS

Sun 25/520:45IAD - DUB

1 stop34h 25mSWISS

Deal found 29/4£416

Mon 16/605:55DUB - IAD

2 stops37h 40mAustrian Airlines

Mon 30/617:10IAD - DUB

2 stops33h 10mAustrian Airlines

Deal found 30/4£424

Sat 14/611:30DUB - DCA

1 stop16h 29mJetBlue

Sat 21/615:35DCA - DUB

1 stop12h 25mJetBlue

Deal found 30/4£453

Direct flights from Ireland to Washington, D.C.
Explore direct flight options from Ireland to Washington, D.C. based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 April 2025.

Fri 23/516:00DUB - IAD

Nonstop7h 55mAer Lingus

Fri 30/517:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 29/4£382

Thu 15/512:30DUB - IAD

Nonstop8h 00mLufthansa

Mon 26/522:15IAD - DUB

Nonstop7h 05mLufthansa

Deal found 29/4£400

Fri 16/512:30DUB - IAD

Nonstop8h 00mUnited Airlines

Tue 20/522:05IAD - DUB

Nonstop7h 15mUnited Airlines

Deal found 30/4£480

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 30 April 2025 and is based on user searches.

Mon 5/509:20DUB - IAD

2 stops33h 21mAustrian Airlines

Mon 12/517:50IAD - DUB

2 stops32h 30mAustrian Airlines

Deal found 28/4£560

Tue 6/509:50DUB - BWI

2 stops16h 47mUnited Airlines

Tue 13/510:50BWI - DUB

2 stops15h 30mUnited Airlines

Deal found 29/4£398

Thu 8/512:45DUB - IAD

1 stop12h 20mBritish Airways

Sat 17/522:45IAD - DUB

1 stop12h 55mBritish Airways

Deal found 29/4£387

Thu 8/509:50DUB - DCA

1 stop14h 53mUnited Airlines

Sat 17/519:18DCA - DUB

1 stop10h 52mUnited Airlines

Deal found 29/4£388

Thu 8/509:50DUB - IAD

1 stop11h 18mUnited Airlines

Sat 17/522:05IAD - DUB

Nonstop7h 15mUnited Airlines

Deal found 29/4£388

Fri 9/508:45DUB - IAD

1 stop12h 30mMultiple Airlines

Sun 18/522:05IAD - DUB

Nonstop7h 15mMultiple Airlines

Deal found 29/4£393

Fri 9/510:40DUB - IAD

1 stop13h 45mLufthansa

Sun 18/522:05IAD - DUB

Nonstop7h 15mLufthansa

Deal found 30/4£396

Fri 9/505:55DUB - BWI

2 stops15h 28mDelta

Sat 17/517:55BWI - DUB

1 stop11h 50mDelta

Deal found 29/4£400

Fri 9/513:20DUB - DCA

2 stops13h 41mDelta

Sat 17/511:05DCA - DUB

1 stop18h 40mDelta

Deal found 29/4£444

Fri 9/512:45DUB - BWI

1 stop11h 50mBritish Airways

Sun 18/521:20BWI - DUB

1 stop11h 55mBritish Airways

Deal found 29/4£627

Sat 10/508:55DUB - IAD

1 stop11h 40mDelta

Mon 19/507:05IAD - DUB

1 stop20h 40mDelta

Deal found 30/4£337

Sat 10/518:40DUB - IAD

2 stops24h 35mSWISS

Sun 18/518:30IAD - DUB

2 stops18h 20mSWISS

Deal found 30/4£533

One-way flights from Ireland to Washington, D.C.
Search for one-way flight options from Ireland to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 30 April 2025.

Wed 18/611:35DUB - BWI

1 stop11h 05mPLAY

Deal found 29/4£227

Mon 9/614:15DUB - IAD

1 stop12h 55mIcelandair

Deal found 30/4£356

Thu 2/1014:15DUB - BWI

1 stop10h 10mIcelandair

Deal found 29/4£387

Tue 30/910:25DUB - IAD

2 stops16h 27mBritish Airways

Deal found 29/4£478

Wed 3/913:20DUB - BWI

2 stops13h 23mDelta

Deal found 29/4£482

Wed 10/905:55DUB - IAD

2 stops15h 36mDelta

Deal found 29/4£482

Fri 25/713:35DUB - IAD

1 stop27h 10mTurkish Airlines

Deal found 29/4£487

Tue 30/910:00DUB - DCA

1 stop11h 32mKLM

Deal found 29/4£490

Sun 6/711:05DUB - DCA

1 stop16h 54mMultiple Airlines

Deal found 29/4£491

Sun 6/713:25DUB - IAD

1 stop14h 02mMultiple Airlines

Deal found 29/4£491

Sat 31/510:40DUB - DCA

1 stop14h 20mJetBlue

Deal found 29/4£502

Sat 5/711:35DUB - BWI

1 stop16h 49mMultiple Airlines

Deal found 29/4£522

Cheapflights Fare Finder

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

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 22/10

11:35-17:40

1 stop11h 05m

Baltimore/Washington

Fri 31/10

19:05-09:40

1 stop10h 35m

£219

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 19/5

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Mon 26/5

20:33-15:00

2 stops13h 27m

£334

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 23/5

12:15-22:10

1 stop14h 55m

Washington, D.C. Dulles Intl

Fri 30/5

23:15-13:15

1 stop9h 00m

£336

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 22/5

05:55-15:35

1 stop14h 40m

Washington, D.C. Dulles Intl

Wed 28/5

17:25-12:35

1 stop14h 10m

£338

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sun 11/5

13:20-23:44

2 stops15h 24m

Washington, D.C. Reagan-National

Mon 19/5

13:15-10:45

1 stop16h 30m

£341

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 23/5

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Fri 30/5

22:05-09:15

2 stops30h 10m

£352

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 23/5

12:15-19:25

1 stop12h 10m

Baltimore/Washington

Fri 30/5

20:30-13:15

1 stop11h 45m

£373

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 23/5

16:00-18:55

Nonstop7h 55m

Washington, D.C. Dulles Intl

Fri 30/5

17:20-05:10

Nonstop6h 50m

£382

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 28/8

09:20-15:48

1 stop11h 28m

Washington, D.C. Reagan-National

Thu 4/9

13:00-07:20

1 stop13h 20m

£383

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 28/8

09:20-21:01

1 stop16h 41m

Washington, D.C. Dulles Intl

Thu 4/9

22:15-10:20

Nonstop7h 05m

£383

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 44 results

...

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, January is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £599). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of £947). 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?

It’s optimal to fly from Ireland to Washington, D.C. at midday. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the morning.

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

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Ireland to Washington, D.C., such as Delta, KLM and Austrian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,934 reviews

Check prices

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

Delta

8.0

Very Good

7,934 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

Austrian Airlines

7.6

Good

781 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

Finnair

7.6

Good

1,275 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

SWISS

7.5

Good

1,588 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

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

What are the cheapest airlines to fly from Ireland to Washington, D.C. one-way?
£227 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 British Airways, with prices starting from £356 and £478, respectively.
What are the most popular routes from Ireland to Washington, D.C.?
While some choose either Dublin - Washington, D.C. Reagan-National or Dublin - Baltimore/Washington, Dublin - Washington, D.C. Dulles Intl 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: Lufthansa (89%), Air Canada (89%), United Airlines (89%).
What are the cheapest flights from Ireland to Washington, D.C.?
On average you can expect to pay £527 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £364 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £290.
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, January is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £599). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of £947). 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

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Arlington

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Tysons

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Alternative routes for Ireland to Washington, D.C.

Heathrow to Dulles Intl flights

Heathrow to Reagan-National flights

Gatwick to Dulles Intl flights

London City to Dulles Intl flights

Gatwick to Reagan-National flights

Stansted to Dulles Intl flights

Luton to Dulles Intl flights

Manchester to Dulles Intl flights

Edinburgh to Dulles Intl flights

London City to Reagan-National flights

Manchester to Reagan-National flights

Edinburgh to Reagan-National flights

Birmingham to Dulles Intl flights

Birmingham to Reagan-National flights

Glasgow Intl to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Dublin to Dulles Intl flights

Glasgow Intl to Reagan-National flights

Newcastle upon Tyne to Reagan-National flights

Bruxelles-National to Dulles Intl flights

Leeds to Dulles Intl flights

Southampton to Dulles Intl flights

Frankfurt to Dulles Intl flights

Bristol to Dulles Intl flights

Cardiff to Dulles Intl flights

Cardiff to Reagan-National flights

Norwich to Dulles Intl flights

Southampton to Reagan-National flights

Aberdeen to Dulles Intl flights

Madrid to Dulles Intl flights

Inverness to Reagan-National flights

Amsterdam to Dulles Intl flights

Leeds to Reagan-National flights

Aberdeen to Reagan-National flights

Belfast City to Reagan-National flights

Inverness to Dulles Intl flights

Belfast Intl to Dulles Intl flights

Belfast City to Dulles Intl flights

Bristol to Reagan-National flights

Istanbul to Dulles Intl flights

Complete your trip

Washington, D.C. car hire

Washington, D.C. Dulles Intl Airport car hire

Baltimore/Washington Airport car hire

Washington, D.C. Reagan-National Airport car hire

Dupont Circle car hire

Georgetown car hire

Downtown car hire

Capitol Hill car hire

Foggy Bottom - West End car hire

Southwest Waterfront car hire

Columbia Heights car hire

Anacostia car hire

Direct flights to United States

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Baltimore to Atlanta flights

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Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights

Baltimore to London Heathrow Airport flights

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

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£209	Average£313	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£295	Average£371	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£308	Average£492	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£321	Average£540	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£338	Average£410	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Lufthansa	Cheapest£426	Average£548	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

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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Cheap flights from Ireland to Washington, D.C. from £216

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/11. Fares are subject to change and may not be available on all flights or dates of travel.

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 30 April 2025.

Round-trip from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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 30 April 2025.

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 30 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Washington, D.C. that are best for you.

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.

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.?

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 30 April 2025.

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

Rainfall in Washington, D.C. by month

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

Temperature in Washington, D.C. by month

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

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from Ireland to Washington, D.C., such as Delta, KLM and Austrian Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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

Travelling to a place near Ireland?

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

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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 30 April 2025.