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

£254 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 JetBlue, with prices starting from £362 and £393, 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.

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.

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).

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

While some choose either Dublin - Washington, D.C. Reagan-National or Dublin - Washington, D.C. Dulles Intl, Dublin - Baltimore/Washington 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 £1,425 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £407 while the most popular route, (Dublin - Baltimore/Washington) is currently priced at £288.

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: SWISS (83%), Lufthansa (80%), American Airlines (78%).

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 17% 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 138% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £366 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £475.

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 August. 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 £418 on average during January, but can be found for as low as £202.

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.

£254+ Flights from Ireland to Washington, D.C.

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

Round-trip from	£266
One-way from	£254
Popular in	August
Cheapest in	January
Average price	£531
Good round-trip deal	£500 or less

PLAY
26/9-5/10
2 total stops
21h 25m total
Ireland to Washington, D.C.

Search Deals

PLAY
3/9
1 total stop
11h 05m total
Ireland to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£49 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 July 2025

Search Deals

Price to beat on a round-trip 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 10 July 2025.

Fri 26/911:35DUB - BWI

1 stop11h 05mPLAY

Sun 5/1018:50BWI - DUB

1 stop10h 20mPLAY

Deal found 8/7£266

Thu 20/1111:30DUB - IAD

1 stop11h 50mIcelandair

Mon 1/1219:40IAD - DUB

1 stop9h 35mIcelandair

Deal found 9/7£383

Sat 23/810:15DUB - IAD

1 stop14h 44mScandinavian Airlines

Sat 30/822:05IAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 9/7£385

Tue 9/908:55DUB - IAD

1 stop11h 40mDelta

Tue 23/920:17IAD - DUB

2 stops13h 43mDelta

Deal found 9/7£387

Wed 22/1013:20DUB - DCA

2 stops15h 09mDelta

Fri 31/1010:00DCA - DUB

2 stops17h 45mDelta

Deal found 9/7£393

Tue 9/911:45DUB - BWI

1 stop10h 56mAmerican Airlines

Tue 23/921:20BWI - DUB

1 stop17h 10mAmerican Airlines

Deal found 9/7£393

Tue 21/1013:15DUB - DCA

1 stop14h 04mKLM

Tue 28/1017:00DCA - DUB

1 stop12h 20mKLM

Deal found 9/7£400

Mon 24/1111:30DUB - DCA

1 stop13h 29mMultiple Airlines

Mon 8/1211:50DCA - DUB

1 stop15h 50mMultiple Airlines

Deal found 9/7£401

Thu 28/816:00DUB - IAD

Nonstop7h 55mAer Lingus

Sun 7/920:25IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 8/7£406

Thu 28/810:40DUB - DCA

2 stops17h 38mBritish Airways

Wed 10/919:00DCA - DUB

2 stops14h 35mBritish Airways

Deal found 8/7£408

Wed 27/810:50DUB - BWI

2 stops17h 19mBritish Airways

Tue 9/921:20BWI - DUB

1 stop12h 25mBritish Airways

Deal found 8/7£408

Wed 3/912:40DUB - DCA

2 stops38h 35mScandinavian Airlines

Fri 12/906:05DCA - DUB

2 stops46h 20mScandinavian Airlines

Deal found 9/7£414

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 10 July 2025.

Fri 26/911:35DUB - BWI

1 stop11h 05mPLAY

Sun 5/1018:50BWI - DUB

1 stop10h 20mPLAY

Deal found 8/7£266

Thu 20/1111:30DUB - IAD

1 stop11h 50mIcelandair

Mon 1/1219:40IAD - DUB

1 stop9h 35mIcelandair

Deal found 9/7£383

Sat 23/810:15DUB - IAD

1 stop14h 44mScandinavian Airlines

Sat 30/822:05IAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 9/7£385

Tue 9/908:55DUB - IAD

1 stop11h 40mDelta

Tue 23/920:17IAD - DUB

2 stops13h 43mDelta

Deal found 9/7£387

Tue 9/911:45DUB - BWI

1 stop10h 56mAmerican Airlines

Tue 23/921:20BWI - DUB

1 stop17h 10mAmerican Airlines

Deal found 9/7£393

Tue 21/1013:15DUB - DCA

1 stop14h 04mKLM

Tue 28/1017:00DCA - DUB

1 stop12h 20mKLM

Deal found 9/7£400

Mon 24/1111:30DUB - DCA

1 stop13h 29mMultiple Airlines

Mon 8/1211:50DCA - DUB

1 stop15h 50mMultiple Airlines

Deal found 9/7£401

Thu 28/816:00DUB - IAD

Nonstop7h 55mAer Lingus

Sun 7/920:25IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 8/7£406

Thu 28/810:40DUB - DCA

2 stops17h 38mBritish Airways

Wed 10/919:00DCA - DUB

2 stops14h 35mBritish Airways

Deal found 8/7£408

Thu 20/1118:05DUB - DCA

2 stops33h 28mFinnair

Sun 30/1117:58DCA - DUB

2 stops34h 02mFinnair

Deal found 8/7£430

Thu 20/1105:00DUB - IAD

1 stop14h 35mLufthansa

Fri 28/1122:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 8/7£447

Sat 22/1109:00DUB - DCA

1 stop14h 05mUnited Airlines

Thu 27/1116:30DCA - DUB

1 stop10h 00mUnited Airlines

Deal found 8/7£448

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 10 July 2025.

Thu 28/816:00DUB - IAD

Nonstop7h 55mAer Lingus

Sun 7/920:25IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 8/7£406

Fri 5/1212:05DUB - IAD

Nonstop8h 15mUnited Airlines

Mon 8/1222:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 9/7£460

Wed 27/812:30DUB - IAD

Nonstop8h 00mLufthansa

Sun 31/822:15IAD - DUB

Nonstop7h 05mLufthansa

Deal found 9/7£498

Tue 9/916:35DUB - IAD

Nonstop7h 55mAmerican Airlines

Tue 23/917:20IAD - DUB

Nonstop6h 50mAmerican Airlines

Deal found 9/7£517

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 10 July 2025 and is based on user searches.

Tue 15/709:20DUB - IAD

1 stop16h 41mUnited Airlines

Tue 22/722:19IAD - DUB

2 stops28h 26mUnited Airlines

Deal found 8/7£576

Tue 15/713:35DUB - IAD

1 stop27h 10mTurkish Airlines

Tue 29/713:30IAD - DUB

1 stop21h 00mTurkish Airlines

Deal found 8/7£1,439

Tue 15/714:15DUB - BWI

1 stop10h 10mIcelandair

Tue 29/720:30BWI - DUB

1 stop9h 35mIcelandair

Deal found 8/7£2,018

Tue 15/714:15DUB - IAD

1 stop12h 55mMultiple Airlines

Tue 29/723:15IAD - DUB

2 stops37h 35mMultiple Airlines

Deal found 8/7£2,058

Tue 15/709:20DUB - DCA

1 stop11h 28mUnited Airlines

Tue 29/712:00DCA - DUB

2 stops15h 15mUnited Airlines

Deal found 8/7£2,239

Tue 15/710:00DUB - IAD

2 stops38h 59mScandinavian Airlines

Tue 29/722:05IAD - DUB

2 stops15h 35mScandinavian Airlines

Deal found 8/7£2,709

Tue 15/712:50DUB - IAD

Nonstop8h 00mAer Lingus

Tue 29/717:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 8/7£3,991

Thu 17/711:35DUB - BWI

1 stop11h 05mPLAY

Wed 23/718:50BWI - DUB

1 stop10h 25mPLAY

Deal found 9/7£439

Thu 17/710:00DUB - BWI

2 stops15h 48mDelta

Wed 23/717:37BWI - DUB

1 stop12h 08mDelta

Deal found 9/7£1,069

Fri 1/812:15DUB - IAD

1 stop14h 55mIcelandair

Fri 8/823:15IAD - DUB

1 stop9h 00mIcelandair

Deal found 9/7£461

Fri 22/805:30DUB - IAD

1 stop14h 50mTAP AIR PORTUGAL

Fri 29/822:20IAD - DUB

1 stop20h 45mTAP AIR PORTUGAL

Deal found 8/7£464

Sat 23/810:15DUB - IAD

1 stop14h 44mScandinavian Airlines

Sat 30/822:05IAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 9/7£385

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 10 July 2025.

Wed 3/911:35DUB - BWI

1 stop11h 05mPLAY

Deal found 10/7£254

Mon 15/906:05DUB - BWI

3 stops43h 57mMultiple Airlines

Deal found 9/7£283

Tue 9/914:15DUB - IAD

1 stop10h 05mIcelandair

Deal found 8/7£362

Wed 6/810:40DUB - DCA

1 stop14h 23mJetBlue

Deal found 9/7£393

Fri 3/1012:15DUB - BWI

1 stop12h 10mIcelandair

Deal found 8/7£393

Sun 30/1111:30DUB - DCA

2 stops13h 51mMultiple Airlines

Deal found 8/7£397

Mon 29/910:30DUB - DCA

2 stops17h 37mBritish Airways

Deal found 8/7£417

Tue 30/912:45DUB - BWI

1 stop11h 50mBritish Airways

Deal found 8/7£425

Wed 3/911:10DUB - BWI

2 stops15h 39mDelta

Deal found 9/7£489

Tue 21/1013:20DUB - IAD

2 stops27h 30mDelta

Deal found 9/7£489

Fri 8/811:15DUB - BWI

1 stop13h 20mAer Lingus

Deal found 9/7£492

Sun 5/1013:20DUB - DCA

2 stops15h 21mDelta

Deal found 8/7£502

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

Fri 26/9

11:35-17:40

1 stop11h 05m

Baltimore/Washington

Sun 5/10

18:50-10:10

1 stop10h 20m

£266

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 20/11

11:30-18:20

1 stop11h 50m

Washington, D.C. Dulles Intl

Fri 28/11

19:40-10:15

1 stop9h 35m

£383

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 23/8

10:15-19:59

1 stop14h 44m

Washington, D.C. Dulles Intl

Sat 30/8

22:05-11:50

1 stop32h 45m

£385

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 9/9

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 23/9

20:17-15:00

2 stops13h 43m

£387

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Tue 9/9

11:45-17:41

1 stop10h 56m

Baltimore/Washington

Tue 23/9

21:20-19:30

1 stop17h 10m

£393

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 22/10

13:20-23:29

2 stops15h 09m

Washington, D.C. Reagan-National

Fri 31/10

10:00-07:45

2 stops17h 45m

£393

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 21/10

13:15-22:19

1 stop14h 04m

Washington, D.C. Reagan-National

Tue 28/10

17:00-09:20

1 stop12h 20m

£400

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Mon 24/11

11:30-19:59

1 stop13h 29m

Washington, D.C. Reagan-National

Mon 8/12

11:50-08:40

1 stop15h 50m

£401

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 28/8

16:00-18:55

Nonstop7h 55m

Washington, D.C. Dulles Intl

Sun 7/9

20:25-08:15

Nonstop6h 50m

£406

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 28/8

10:40-23:18

2 stops17h 38m

Washington, D.C. Reagan-National

Wed 10/9

19:00-14:35

2 stops14h 35m

£408

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 51 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 24% 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 (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown with Delta, KLM, andFinnair 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.

Delta

8.0

Very Good

7,952 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,952 reviews

Delta

8.0

Very Good

7,952 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,370 reviews

Delta

8.0

Very Good

7,952 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,312 reviews

Delta

8.0

Very Good

7,952 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,652 reviews

Delta

8.0

Very Good

7,952 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,843 reviews

Delta

8.0

Very Good

7,952 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from Ireland to Washington, D.C. one-way?
£254 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 JetBlue, with prices starting from £362 and £393, 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 - Washington, D.C. Dulles Intl, 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: SWISS (83%), Lufthansa (80%), American Airlines (78%).
What are the cheapest flights from Ireland to Washington, D.C.?
On average you can expect to pay £1,425 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £407 while the most popular route, (Dublin - Baltimore/Washington) is currently priced at £288.
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

Silver Spring

Hanover

Oxon Hill

Arlington

Woodbridge

College Park

Laurel

Tysons

Browse thousands of different options on Cheapflights for your next trip

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

London City to Reagan-National flights

Manchester to Dulles Intl flights

Edinburgh to Dulles Intl flights

Manchester to Reagan-National flights

Birmingham to Dulles Intl flights

Edinburgh to Reagan-National flights

Birmingham to Reagan-National flights

Glasgow Intl to Dulles Intl flights

Leeds to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Glasgow Intl to Reagan-National flights

Newcastle upon Tyne to Reagan-National flights

Madrid to Dulles Intl flights

Belfast City to Reagan-National flights

Belfast Intl to Dulles Intl flights

Istanbul to Dulles Intl flights

Belfast City to Dulles Intl flights

Frankfurt to Dulles Intl flights

Aberdeen to Dulles Intl flights

Amsterdam to Dulles Intl flights

Norwich to Reagan-National flights

Bristol to Dulles Intl flights

Norwich to Dulles Intl flights

Grimsby to Dulles Intl flights

Inverness to Reagan-National flights

Southampton to Dulles Intl flights

Dublin to Dulles Intl flights

Cardiff to Dulles Intl flights

Bruxelles-National to Dulles Intl flights

Aberdeen to Reagan-National flights

Bristol to Reagan-National flights

Cardiff to Reagan-National 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

Adams Morgan car hire

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Washington, D.C. Dulles Intl Airport to Edinburgh flights

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

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£215	Average£295	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£291	Average£374	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£304	Average£506	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£308	Average£541	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£317	Average£509	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£334	Average£404	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus 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 £254

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 3/9. 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 10 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip 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 10 July 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 10 July 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 10 July 2025.

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

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown with Delta, KLM, andFinnair 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.

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.

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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 10 July 2025.