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

£249 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 TAP AIR PORTUGAL, with prices starting from £386 and £387, 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. Saturday 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 £579 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £380 while the most popular route, (Dublin - Baltimore/Washington) is currently priced at £503.

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 (86%), Lufthansa (85%), American Airlines (84%).

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 16% 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 £365 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £473.

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 £417 on average during January, but can be found for as low as £201.

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.

£506+ Flights from Ireland to Washington, D.C.

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

Round-trip from	£333
One-way from	£249
Popular in	August
Cheapest in	January
Average price	£503
Good round-trip deal	£484 or less
Good one-way deal	£567 or less

Icelandair
9/9-23/9
2 total stops
19h 45m 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. 14% 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 June 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 26 June 2025.

Tue 9/914:15DUB - BWI

1 stop10h 10mIcelandair

Tue 23/920:30BWI - DUB

1 stop9h 35mIcelandair

Deal found 26/6£333

Fri 5/1205:10DUB - IAD

1 stop15h 40mLufthansa

Mon 8/1222:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 24/6£378

Mon 25/812:45DUB - IAD

1 stop12h 25mBritish Airways

Tue 2/922:40IAD - DUB

1 stop11h 05mBritish Airways

Deal found 24/6£379

Fri 5/1209:00DUB - DCA

1 stop18h 37mUnited Airlines

Mon 8/1216:30DCA - DUB

1 stop10h 00mUnited Airlines

Deal found 25/6£379

Tue 9/910:25DUB - BWI

1 stop14h 10mBritish Airways

Tue 23/921:20BWI - DUB

1 stop29h 25mBritish Airways

Deal found 24/6£379

Mon 27/1008:00DUB - IAD

1 stop11h 54mUnited Airlines

Sun 2/1122:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 26/6£379

Tue 9/908:55DUB - IAD

1 stop11h 40mDelta

Tue 23/917:10IAD - DUB

2 stops16h 50mDelta

Deal found 24/6£380

Fri 5/1213:35DUB - DCA

2 stops14h 03mBritish Airways

Mon 8/1217:49DCA - DUB

2 stops13h 46mBritish Airways

Deal found 23/6£381

Sat 4/1020:05DUB - IAD

2 stops28h 54mScandinavian Airlines

Sat 11/1022:05IAD - DUB

2 stops32h 25mScandinavian Airlines

Deal found 26/6£381

Wed 22/1013:20DUB - DCA

2 stops15h 09mDelta

Fri 31/1010:00DCA - DUB

2 stops17h 45mDelta

Deal found 24/6£386

Thu 28/808:35DUB - BWI

1 stop16h 00mAmerican Airlines

Wed 3/916:44BWI - DUB

1 stop13h 56mAmerican Airlines

Deal found 24/6£391

Tue 21/1013:15DUB - DCA

1 stop14h 04mKLM

Tue 28/1015:30DCA - DUB

1 stop13h 50mKLM

Deal found 24/6£392

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 26 June 2025.

Tue 9/914:15DUB - BWI

1 stop10h 10mIcelandair

Tue 23/920:30BWI - DUB

1 stop9h 35mIcelandair

Deal found 26/6£333

Fri 5/1205:10DUB - IAD

1 stop15h 40mLufthansa

Mon 8/1222:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 24/6£378

Mon 25/812:45DUB - IAD

1 stop12h 25mBritish Airways

Sun 31/822:40IAD - DUB

1 stop10h 35mBritish Airways

Deal found 24/6£379

Fri 5/1209:00DUB - DCA

1 stop18h 37mUnited Airlines

Mon 8/1216:30DCA - DUB

1 stop10h 00mUnited Airlines

Deal found 25/6£379

Tue 9/908:55DUB - IAD

1 stop11h 40mDelta

Tue 23/917:10IAD - DUB

2 stops16h 50mDelta

Deal found 24/6£380

Sat 4/1020:05DUB - IAD

2 stops28h 54mScandinavian Airlines

Sat 11/1022:05IAD - DUB

2 stops32h 25mScandinavian Airlines

Deal found 26/6£381

Thu 28/808:35DUB - BWI

1 stop16h 00mAmerican Airlines

Wed 3/916:44BWI - DUB

1 stop13h 56mAmerican Airlines

Deal found 24/6£391

Tue 21/1013:15DUB - DCA

1 stop14h 04mKLM

Tue 28/1015:30DCA - DUB

1 stop13h 50mKLM

Deal found 24/6£392

Thu 11/916:00DUB - IAD

Nonstop7h 55mAer Lingus

Tue 16/917:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 26/6£406

Mon 1/912:40DUB - IAD

1 stop27h 21mIberia

Wed 10/917:40IAD - DUB

1 stop35h 05mIberia

Deal found 24/6£434

Tue 9/912:30DUB - IAD

Nonstop8h 05mMultiple Airlines

Tue 23/920:45IAD - DUB

1 stop16h 05mMultiple Airlines

Deal found 24/6£447

Sat 4/1010:40DUB - DCA

1 stop15h 11mJetBlue

Fri 10/1016:39DCA - DUB

1 stop11h 21mJetBlue

Deal found 25/6£454

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 26 June 2025.

Fri 31/1012:05DUB - IAD

Nonstop8h 15mLufthansa

Mon 3/1122:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 25/6£382

Thu 11/1212:05DUB - IAD

Nonstop8h 15mUnited Airlines

Wed 31/1222:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 24/6£388

Thu 11/916:00DUB - IAD

Nonstop7h 55mAer Lingus

Tue 16/917:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 26/6£406

Mon 25/816:00DUB - IAD

Nonstop7h 55mAmerican Airlines

Tue 2/917:20IAD - DUB

Nonstop6h 50mAmerican Airlines

Deal found 24/6£505

Wed 6/812:50DUB - IAD

Nonstop8h 00mMultiple Airlines

Fri 15/822:15IAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 25/6£933

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 26 June 2025 and is based on user searches.

Tue 1/705:55DUB - IAD

2 stops18h 55mDelta

Thu 31/718:30IAD - DUB

1 stop15h 30mDelta

Deal found 24/6£540

Tue 1/712:30DUB - IAD

Nonstop8h 00mLufthansa

Thu 31/722:15IAD - DUB

Nonstop7h 05mLufthansa

Deal found 25/6£638

Thu 3/709:20DUB - IAD

1 stop30h 54mUnited Airlines

Sun 13/719:05IAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 25/6£513

Thu 3/709:20DUB - DCA

1 stop29h 58mUnited Airlines

Sun 13/719:00DCA - DUB

1 stop11h 10mUnited Airlines

Deal found 25/6£516

Thu 3/719:50DUB - IAD

2 stops29h 09mScandinavian Airlines

Sun 13/722:05IAD - DUB

2 stops29h 50mScandinavian Airlines

Deal found 25/6£709

Thu 3/712:00DUB - BWI

2 stops16h 19mDelta

Sun 13/718:47BWI - DUB

1 stop10h 58mDelta

Deal found 25/6£1,081

Thu 3/720:15DUB - BWI

2 stops30h 26mScandinavian Airlines

Fri 11/713:08BWI - DUB

2 stops24h 02mScandinavian Airlines

Deal found 26/6£3,633

Fri 4/713:20DUB - DCA

2 stops15h 13mDelta

Fri 11/712:29DCA - DUB

1 stop16h 31mDelta

Deal found 24/6£551

Fri 11/709:20DUB - IAD

1 stop26h 01mAir Canada

Mon 21/708:18IAD - DUB

2 stops18h 27mAir Canada

Deal found 25/6£526

Mon 14/714:15DUB - IAD

1 stop12h 55mIcelandair

Wed 23/723:15IAD - DUB

1 stop9h 00mIcelandair

Deal found 25/6£453

Mon 14/709:30DUB - IAD

2 stops15h 06mAmerican Airlines

Tue 22/717:50IAD - DUB

1 stop18h 15mAmerican Airlines

Deal found 25/6£465

Mon 14/714:15DUB - BWI

1 stop10h 10mIcelandair

Wed 23/720:30BWI - DUB

1 stop11h 45mIcelandair

Deal found 25/6£508

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 26 June 2025.

Wed 3/911:35DUB - BWI

1 stop11h 05mPLAY

Deal found 24/6£249

Sat 16/812:20DUB - BWI

2 stops40h 55mMultiple Airlines

Deal found 23/6£335

Tue 8/711:30DUB - IAD

2 stops14h 34mMultiple Airlines

Deal found 24/6£348

Tue 15/710:40DUB - DCA

1 stop12h 25mJetBlue

Deal found 24/6£386

Tue 8/718:50DUB - IAD

1 stop25h 30mTAP AIR PORTUGAL

Deal found 24/6£387

Sat 16/812:20DUB - BWI

3 stops27h 52mWestJet

Deal found 23/6£404

Sun 30/1111:30DUB - DCA

1 stop13h 29mMultiple Airlines

Deal found 25/6£430

Tue 8/711:35DUB - BWI

1 stop11h 05mWorldTicket

Deal found 24/6£431

Mon 1/911:05DUB - BWI

1 stop13h 30mBritish Airways

Deal found 23/6£458

Wed 3/913:20DUB - BWI

2 stops13h 29mDelta

Deal found 24/6£480

Thu 31/712:50DUB - IAD

Nonstop8h 00mAer Lingus

Deal found 25/6£489

Sun 5/1005:55DUB - IAD

2 stops15h 36mDelta

Deal found 26/6£496

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

Tue 9/9

14:15-19:25

1 stop10h 10m

Baltimore/Washington

Tue 23/9

20:30-11:05

1 stop9h 35m

£333

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/12

05:10-15:50

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 8/12

22:20-10:20

Nonstop7h 00m

£378

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 25/8

12:45-20:10

1 stop12h 25m

Washington, D.C. Dulles Intl

Tue 2/9

22:40-14:45

1 stop11h 05m

£379

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 5/12

09:00-22:37

1 stop18h 37m

Washington, D.C. Reagan-National

Mon 8/12

16:30-07:30

1 stop10h 00m

£379

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Tue 9/9

10:25-19:35

1 stop14h 10m

Baltimore/Washington

Tue 23/9

21:20-07:45

1 stop29h 25m

£379

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 27/10

08:00-15:54

1 stop11h 54m

Washington, D.C. Dulles Intl

Sun 2/11

22:20-10:20

Nonstop7h 00m

£379

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

17:10-15:00

2 stops16h 50m

£380

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 4/10

20:05-19:59

2 stops28h 54m

Washington, D.C. Dulles Intl

Sat 11/10

22:05-11:30

2 stops32h 25m

£381

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 5/12

13:35-22:38

2 stops14h 03m

Washington, D.C. Reagan-National

Mon 8/12

17:49-12:35

2 stops13h 46m

£381

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 22/10

11:10-21:53

2 stops15h 43m

Washington, D.C. Reagan-National

Fri 31/10

13:45-07:45

1 stop14h 00m

£386

Flights are sorted by cheapest return flights first.

Deals found on 24/6

Showing 1-10 of 50 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 23% 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 Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown with Delta, KLM, andAustrian Airlines 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

7,964 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

7,964 reviews

Delta

8.0

Very Good

7,964 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

1,365 reviews

Delta

8.0

Very Good

7,964 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!

Austrian Airlines

7.6

Good

805 reviews

Delta

8.0

Very Good

7,964 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

1,298 reviews

Delta

8.0

Very Good

7,964 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

8,838 reviews

Delta

8.0

Very Good

7,964 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?
£249 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 TAP AIR PORTUGAL, with prices starting from £386 and £387, 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 (86%), Lufthansa (85%), American Airlines (84%).
What are the cheapest flights from Ireland to Washington, D.C.?
On average you can expect to pay £579 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £380 while the most popular route, (Dublin - Baltimore/Washington) is currently priced at £503.
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

Oxon Hill

Hanover

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

Gatwick to Dulles Intl flights

Heathrow to Reagan-National 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

Edinburgh to Dulles Intl flights

Manchester to Dulles Intl flights

Manchester to Reagan-National flights

Birmingham to Dulles Intl flights

Edinburgh to Reagan-National flights

Birmingham to Reagan-National flights

Leeds to Dulles Intl flights

Glasgow Intl to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Leeds to Reagan-National flights

Bristol to Dulles Intl flights

Southampton to Dulles Intl flights

Glasgow Intl to Reagan-National flights

Madrid to Dulles Intl flights

Cardiff to Dulles Intl flights

Aberdeen to Reagan-National flights

Aberdeen to Dulles Intl flights

Bristol to Reagan-National flights

Grimsby to Reagan-National flights

Belfast City to Dulles Intl flights

Belfast Intl to Dulles Intl flights

Frankfurt to Dulles Intl flights

Amsterdam to Dulles Intl flights

Grimsby to Dulles Intl flights

Southampton to Reagan-National flights

Norwich to Dulles Intl flights

Cardiff to Reagan-National flights

Belfast City to Reagan-National flights

Inverness to Reagan-National flights

Newcastle upon Tyne to Reagan-National flights

Exeter to Dulles Intl flights

Southend to Dulles Intl flights

Istanbul to Dulles Intl flights

Dublin 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

Adams Morgan car hire

Direct flights to United States

Other flights to Washington, D.C.

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

Washington, D.C. Reagan-National Airport to Boston flights

Baltimore to Orlando Airport flights

Washington, D.C. Dulles Intl Airport to Toronto Pearson Intl Airport flights

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

Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights

Washington, D.C. Reagan-National Airport to Los Angeles flights

Baltimore to Las Vegas flights

Baltimore to Atlanta flights

Washington, D.C. Dulles Intl Airport to San Francisco flights

Washington, D.C. Dulles Intl Airport to Toronto Pearson Intl Airport flights

Washington, D.C. Dulles Intl Airport to San Francisco flights

Washington, D.C. Dulles Intl Airport to Paris Charles de Gaulle Airport flights

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

Baltimore to London Heathrow Airport flights

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

Washington, D.C. Reagan-National Airport to San Francisco flights

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

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

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£213	Average£294	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Icelandair	Cheapest£290	Average£395	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£303	Average£504	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£308	Average£539	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£316	Average£508	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£333	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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ireland to Washington, D.C. from £249

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 26 June 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 26 June 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 26 June 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 26 June 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, andAustrian Airlines 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?

Browse thousands of different options on Cheapflights for your next trip

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

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.

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.?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 26 June 2025.