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

£216 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on JetBlue and British Airways, with prices starting from £346 and £483, 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 £529 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £368 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £291.

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 £372 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £522.

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 £422 on average during January, but can be found for as low as £207.

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.

£454+ Flights from Ireland to Washington, D.C.

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

Round-trip from	£249
One-way from	£216
Popular in	July
Cheapest in	January
Average price	£413
Good round-trip deal	£477 or less
Good one-way deal	£388 or less

PLAY
6/9-20/9
2 total stops
21h 35m total
Ireland to Washington, D.C.

Search Deals

PLAY
18/6
1 total stop
11h 05m total
Ireland to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£76 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£12 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 23 April 2025.

Wed 22/1011:35DUB - BWI

1 stop11h 05mPLAY

Fri 31/1019:05BWI - DUB

1 stop10h 35mPLAY

Deal found 23/4£217

Wed 3/912:15DUB - BWI

1 stop12h 10mIcelandair

Fri 12/920:30BWI - DUB

1 stop11h 45mIcelandair

Deal found 22/4£354

Sat 6/912:50DUB - IAD

Nonstop8h 00mAer Lingus

Sat 20/920:25IAD - DUB

Nonstop6h 55mAer Lingus

Deal found 22/4£382

Thu 1/509:50DUB - BWI

2 stops40h 47mUnited Airlines

Thu 29/517:30BWI - DUB

1 stop11h 15mUnited Airlines

Deal found 22/4£383

Wed 3/912:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Fri 12/922:05IAD - DUB

2 stops16h 10mScandinavian Airlines

Deal found 22/4£384

Wed 3/912:30DUB - IAD

Nonstop8h 05mLufthansa

Fri 12/922:20IAD - DUB

1 stop13h 35mLufthansa

Deal found 22/4£385

Wed 18/612:15DUB - IAD

1 stop12h 05mIcelandair

Fri 11/723:15IAD - DUB

1 stop9h 00mIcelandair

Deal found 22/4£386

Sat 6/908:40DUB - IAD

1 stop12h 35mMultiple Airlines

Sat 20/922:15IAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 22/4£388

Mon 28/409:50DUB - IAD

1 stop11h 18mUnited Airlines

Mon 5/519:00IAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 21/4£389

Sat 3/510:30DUB - BWI

1 stop14h 05mBritish Airways

Mon 12/521:20BWI - DUB

1 stop12h 20mBritish Airways

Deal found 22/4£391

Thu 1/509:50DUB - DCA

1 stop17h 38mUnited Airlines

Thu 8/518:00DCA - DUB

1 stop10h 45mUnited Airlines

Deal found 23/4£391

Fri 2/511:00DUB - IAD

1 stop11h 25mBritish Airways

Fri 9/522:40IAD - DUB

1 stop11h 25mBritish Airways

Deal found 22/4£393

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 23 April 2025.

Sat 6/911:35DUB - BWI

1 stop11h 05mPLAY

Sat 20/918:50BWI - DUB

1 stop10h 30mPLAY

Deal found 22/4£249

Wed 3/912:15DUB - BWI

1 stop12h 10mIcelandair

Fri 12/920:30BWI - DUB

1 stop11h 45mIcelandair

Deal found 22/4£354

Sat 6/912:50DUB - IAD

Nonstop8h 00mAer Lingus

Sat 20/920:25IAD - DUB

Nonstop6h 55mAer Lingus

Deal found 22/4£382

Wed 3/912:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Fri 12/922:05IAD - DUB

2 stops16h 10mScandinavian Airlines

Deal found 22/4£384

Wed 3/912:30DUB - IAD

Nonstop8h 05mLufthansa

Fri 12/922:20IAD - DUB

1 stop13h 35mLufthansa

Deal found 22/4£385

Sat 6/908:40DUB - IAD

1 stop12h 35mMultiple Airlines

Sat 20/922:15IAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 22/4£388

Mon 12/512:45DUB - IAD

1 stop12h 20mBritish Airways

Mon 19/522:40IAD - DUB

1 stop11h 00mBritish Airways

Deal found 21/4£389

Tue 6/509:50DUB - IAD

1 stop11h 18mUnited Airlines

Tue 13/519:00IAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 22/4£390

Thu 22/508:55DUB - IAD

1 stop11h 40mDelta

Wed 28/520:30IAD - DUB

2 stops15h 10mDelta

Deal found 22/4£397

Tue 6/509:20DUB - IAD

2 stops33h 21mAustrian Airlines

Tue 13/517:50IAD - DUB

2 stops32h 30mAustrian Airlines

Deal found 22/4£408

Wed 3/909:50DUB - DCA

1 stop14h 54mAir Canada

Fri 12/916:35DCA - DUB

1 stop10h 10mAir Canada

Deal found 22/4£418

Fri 16/518:40DUB - IAD

2 stops24h 35mSWISS

Sun 25/520:45IAD - DUB

1 stop16h 05mSWISS

Deal found 22/4£423

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 23 April 2025.

Sat 6/912:50DUB - IAD

Nonstop8h 00mAer Lingus

Sat 20/920:25IAD - DUB

Nonstop6h 55mAer Lingus

Deal found 22/4£382

Sat 10/512:30DUB - IAD

Nonstop8h 00mLufthansa

Mon 19/522:05IAD - DUB

Nonstop7h 15mLufthansa

Deal found 22/4£402

Tue 13/508:50DUB - IAD

Nonstop8h 00mUnited Airlines

Tue 20/519:00IAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 22/4£481

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 23 April 2025 and is based on user searches.

Mon 28/409:50DUB - IAD

1 stop11h 18mUnited Airlines

Mon 5/519:00IAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 21/4£389

Thu 1/509:50DUB - BWI

2 stops40h 47mUnited Airlines

Thu 29/517:30BWI - DUB

1 stop11h 15mUnited Airlines

Deal found 22/4£383

Thu 1/509:50DUB - DCA

1 stop17h 38mUnited Airlines

Thu 8/518:00DCA - DUB

1 stop10h 45mUnited Airlines

Deal found 23/4£391

Thu 1/508:40DUB - IAD

1 stop12h 35mMultiple Airlines

Thu 29/522:15IAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 22/4£395

Thu 1/508:55DUB - IAD

1 stop11h 40mDelta

Thu 29/512:20IAD - DUB

2 stops17h 05mDelta

Deal found 22/4£397

Thu 1/513:20DUB - DCA

2 stops14h 25mDelta

Sat 10/510:20DCA - DUB

1 stop17h 25mDelta

Deal found 22/4£400

Thu 1/505:55DUB - BWI

2 stops17h 55mDelta

Wed 14/509:00BWI - DUB

1 stop20h 45mDelta

Deal found 22/4£403

Thu 1/513:20DUB - DCA

2 stops14h 25mDelta

Sat 10/513:53DCA - DUB

2 stops14h 22mDelta

Deal found 22/4£400

Fri 2/511:35DUB - BWI

1 stop11h 05mPLAY

Wed 4/618:50BWI - DUB

1 stop10h 25mPLAY

Deal found 23/4£338

Fri 2/511:00DUB - IAD

1 stop11h 25mBritish Airways

Fri 9/522:40IAD - DUB

1 stop11h 25mBritish Airways

Deal found 22/4£393

Fri 2/509:00DUB - DCA

2 stops15h 43mMultiple Airlines

Wed 4/612:55DCA - DUB

2 stops13h 50mMultiple Airlines

Deal found 23/4£396

Fri 2/510:40DUB - IAD

1 stop13h 45mLufthansa

Thu 8/522:05IAD - DUB

Nonstop7h 15mLufthansa

Deal found 22/4£402

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 23 April 2025.

Wed 18/611:35DUB - BWI

1 stop11h 05mPLAY

Deal found 22/4£216

Wed 7/510:40DUB - DCA

1 stop14h 20mJetBlue

Deal found 22/4£346

Sun 1/612:45DUB - DCA

2 stops14h 51mBritish Airways

Deal found 22/4£483

Wed 3/913:20DUB - BWI

2 stops13h 23mDelta

Deal found 23/4£488

Wed 3/908:55DUB - IAD

2 stops15h 42mDelta

Deal found 22/4£490

Sun 6/712:40DUB - DCA

1 stop11h 28mMultiple Airlines

Deal found 23/4£496

Sun 6/713:25DUB - IAD

1 stop14h 02mMultiple Airlines

Deal found 22/4£498

Tue 9/918:50DUB - IAD

2 stops56h 39mTAP AIR PORTUGAL

Deal found 22/4£507

Fri 30/512:00DUB - BWI

1 stop12h 35mBritish Airways

Deal found 23/4£540

Sun 1/606:50DUB - IAD

2 stops18h 25mBritish Airways

Deal found 22/4£561

Thu 3/715:00DUB - DCA

1 stop12h 10mKLM

Deal found 23/4£616

Mon 7/708:50DUB - IAD

Nonstop8h 00mUnited Airlines

Deal found 22/4£935

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

Sat 6/9

11:35-17:40

1 stop11h 05m

Baltimore/Washington

Sat 20/9

18:50-10:20

1 stop10h 30m

£249

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 3/9

12:15-19:25

1 stop12h 10m

Baltimore/Washington

Fri 12/9

20:30-13:15

1 stop11h 45m

£354

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 6/9

12:50-15:50

Nonstop8h 00m

Washington, D.C. Dulles Intl

Sat 20/9

20:25-08:20

Nonstop6h 55m

£382

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 3/9

12:40-19:59

1 stop12h 19m

Washington, D.C. Dulles Intl

Fri 12/9

22:05-19:15

2 stops16h 10m

£384

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 3/9

12:30-15:35

Nonstop8h 05m

Washington, D.C. Dulles Intl

Fri 12/9

22:20-16:55

1 stop13h 35m

£385

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 18/6

12:15-19:20

1 stop12h 05m

Washington, D.C. Dulles Intl

Fri 11/7

23:15-13:15

1 stop9h 00m

£386

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 6/9

08:40-16:15

1 stop12h 35m

Washington, D.C. Dulles Intl

Sat 20/9

22:15-10:20

Nonstop7h 05m

£388

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 12/5

12:45-20:05

1 stop12h 20m

Washington, D.C. Dulles Intl

Mon 19/5

22:40-14:40

1 stop11h 00m

£389

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 6/5

09:50-16:08

1 stop11h 18m

Washington, D.C. Dulles Intl

Tue 13/5

19:00-07:10

Nonstop7h 10m

£390

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Sat 3/5

10:30-19:35

1 stop14h 05m

Baltimore/Washington

Mon 12/5

21:20-14:40

1 stop12h 20m

£391

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 43 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 21% 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 Finnair. 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

7,920 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

7,920 reviews

Delta

8.0

Very Good

7,920 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

1,331 reviews

Delta

8.0

Very Good

7,920 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

1,272 reviews

Delta

8.0

Very Good

7,920 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

780 reviews

Delta

8.0

Very Good

7,920 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

1,582 reviews

Delta

8.0

Very Good

7,920 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?
£216 is the cheapest one-way deal found within the past few days, from PLAY. You may also be able to find cheap deals on JetBlue and British Airways, with prices starting from £346 and £483, 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 £529 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £368 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £291.
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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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

Manchester to Dulles Intl flights

Stansted to Dulles Intl flights

Edinburgh to Dulles Intl flights

London City to Reagan-National flights

Luton to Dulles Intl 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

Glasgow Intl to Reagan-National flights

Newcastle upon Tyne to Dulles Intl flights

Leeds to Dulles Intl flights

Dublin to Dulles Intl flights

Bristol to Dulles Intl flights

Newcastle upon Tyne to Reagan-National flights

Bruxelles-National to Dulles Intl flights

Leeds to Reagan-National flights

Bristol to Reagan-National flights

Southampton to Dulles Intl flights

Amsterdam to Dulles Intl flights

Belfast Intl to Dulles Intl flights

Southend to Dulles Intl flights

Madrid to Dulles Intl flights

Cardiff to Reagan-National flights

Cardiff to Dulles Intl flights

Norwich to Dulles Intl flights

Aberdeen to Reagan-National flights

Belfast City to Dulles Intl flights

Aberdeen to Dulles Intl flights

Inverness to Dulles Intl flights

Belfast City to Reagan-National flights

Southampton to Reagan-National flights

Istanbul to Dulles Intl flights

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

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£211	Average£309	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£296	Average£372	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£309	Average£493	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£322	Average£542	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£340	Average£413	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Lufthansa	Cheapest£426	Average£550	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 one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/6. 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 23 April 2025.

Round-trip from

One-way 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 23 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 23 April 2025.

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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 23 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 Finnair. 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 23 April 2025.