How long is the flight from Ireland to Washington, D.C.?

There are many flights that can get you from Ireland to Washington, D.C. in 11h 40m. Fly via Icelandair or Delta to get the fastest option. Ireland and Washington, D.C. are separated by a distance of 3393 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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 - Baltimore/Washington or Dublin - Washington, D.C. Dulles Intl, Dublin - Washington, D.C. Reagan-National 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 £580 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £420 while the most popular route, (Dublin - Washington, D.C. Reagan-National) is currently priced at £465.

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: Qatar Airways (90%), American Airlines (86%), Aer Lingus (86%).

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.

£219+ Cheap Flights from Ireland to Washington, D.C.

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

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 25 August 2026.

Sat 14/1112:15 -

Nonstop8h 20m

Sun 6/1206:00 -

1 stop18h 15m

Deal found 20/8£219

Wed 16/1213:15 -

1 stop14h 45m

Tue 22/1217:05 -

Nonstop6h 50m

Deal found 20/8£223

Mon 16/1113:15 -

1 stop13h 12m

Sun 29/1117:05 -

Nonstop6h 50m

Deal found 21/8£224

Sat 14/1113:40 -

1 stop14h 08m

Sun 6/1214:50 -

1 stop8h 55m

Deal found 20/8£288

Sun 20/916:25 -

Nonstop8h 00m

Tue 15/1208:15 -

1 stop16h 00m

Deal found 21/8£293

Tue 15/912:35 -

Nonstop8h 10m

Wed 11/1106:10 -

1 stop18h 05m

Deal found 20/8£294

Sat 14/1111:30 -

1 stop17h 29m

Sun 6/1211:48 -

1 stop12h 27m

Deal found 20/8£308

Thu 5/1116:20 -

Nonstop8h 10m

Mon 9/1121:45 -

1 stop10h 50m

Deal found 21/8£360

Tue 24/1111:30 -

1 stop12h 00m

Sun 29/1119:40 -

1 stop9h 35m

Deal found 23/8£381

Thu 5/1113:00 -

2 stops28h 19m

Mon 9/1106:00 -

2 stops18h 10m

Deal found 21/8£385

Tue 15/911:35 -

1 stop15h 08m

Wed 11/1112:34 -

1 stop11h 41m

Deal found 20/8£389

Thu 1/1014:15 -

1 stop10h 05m

Tue 6/1020:30 -

1 stop9h 35m

Deal found 23/8£397

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 25 August 2026.

Sat 5/1211:30 -

1 stop12h 00m

Wed 9/1219:40 -

1 stop9h 35m

Deal found 24/8£412

Sun 4/1008:55 -

1 stop11h 40m

Sun 11/1021:45 -

1 stop12h 40m

Deal found 20/8£450

Tue 20/1005:55 -

1 stop14h 40m

Tue 3/1118:40 -

1 stop14h 50m

Deal found 24/8£454

Fri 22/110:50 -

1 stop11h 15m

Mon 1/218:55 -

1 stop10h 20m

Deal found 23/8£507

Tue 20/1014:15 -

1 stop10h 05m

Tue 10/1119:40 -

1 stop9h 35m

Deal found 21/8£422

Tue 20/1008:55 -

1 stop11h 40m

Tue 10/1118:40 -

1 stop14h 50m

Deal found 20/8£452

Tue 20/1008:55 -

1 stop11h 40m

Tue 10/1112:35 -

2 stops15h 25m

Deal found 23/8£454

Thu 24/905:55 -

1 stop14h 40m

Thu 1/1021:45 -

1 stop12h 40m

Deal found 24/8£454

Tue 20/1020:25 -

1 stop28h 15m

Tue 10/1118:55 -

1 stop12h 15m

Deal found 20/8£538

Tue 20/1014:15 -

1 stop10h 10m

Tue 10/1119:40 -

1 stop9h 35m

Deal found 20/8£498

Thu 12/1108:50 -

2 stops16h 12m

Tue 17/1113:20 -

2 stops14h 40m

Deal found 21/8£455

Tue 20/1014:15 -

1 stop13h 00m

Tue 3/1119:40 -

1 stop9h 35m

Deal found 21/8£499

Fri 25/908:55 -

1 stop11h 40m

Mon 28/912:25 -

2 stops14h 55m

Deal found 21/8£455

Fri 22/105:45 -

2 stops16h 45m

Mon 1/212:30 -

2 stops15h 30m

Deal found 23/8£455

Wed 28/1008:50 -

2 stops18h 05m

Sun 1/1113:20 -

1 stop15h 25m

Deal found 20/8£455

Wed 7/1011:10 -

2 stops17h 27m

Wed 14/1011:55 -

2 stops15h 20m

Deal found 23/8£458

Fri 9/1011:10 -

2 stops15h 50m

Fri 16/1013:20 -

2 stops14h 00m

Deal found 24/8£458

Thu 8/1011:10 -

2 stops15h 50m

Mon 12/1013:20 -

1 stop16h 25m

Deal found 20/8£458

Sun 4/1013:25 -

2 stops14h 34m

Sun 11/1017:15 -

1 stop12h 30m

Deal found 20/8£459

Tue 15/913:25 -

2 stops14h 34m

Wed 11/1111:05 -

1 stop16h 40m

Deal found 20/8£460

Wed 21/1008:55 -

2 stops19h 03m

Wed 4/1113:55 -

2 stops14h 05m

Deal found 20/8£584

Fri 23/1011:10 -

2 stops16h 48m

Fri 6/1113:55 -

2 stops14h 30m

Deal found 24/8£585

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

Round-trip from	£219
Popular in	March
Cheapest in	February
Average price	£531
Good round-trip deal	£506 or less
Good one-way deal	£520 or less

14/11-6/12
1 total stop
26h 35m total
Ireland to Washington, D.C.

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

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

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

Cheapest return flight

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Sat 5/12

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Wed 9/12

19:40-10:15

1 stop9h 35m

£412

Fastest return journey

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Tue 20/10

14:15-19:20

1 stop10h 05m

Washington, D.C. Dulles Intl

Tue 10/11

19:40-10:15

1 stop9h 35m

£422

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Sun 4/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Sun 11/10

21:45-15:25

1 stop12h 40m

£450

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Tue 20/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 10/11

18:40-14:30

1 stop14h 50m

£452

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Tue 20/10

05:55-15:35

1 stop14h 40m

Washington, D.C. Dulles Intl

Tue 3/11

18:40-14:30

1 stop14h 50m

£454

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Tue 20/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 10/11

12:35-09:00

2 stops15h 25m

£454

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Thu 24/9

05:55-15:35

1 stop14h 40m

Washington, D.C. Dulles Intl

Thu 1/10

21:45-15:25

1 stop12h 40m

£454

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Thu 12/11

08:50-20:02

2 stops16h 12m

Washington, D.C. Reagan-National

Tue 17/11

13:20-09:00

2 stops14h 40m

£455

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Fri 25/9

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Mon 28/9

12:25-08:20

2 stops14h 55m

£455

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Fri 22/1

05:45-17:30

2 stops16h 45m

Washington, D.C. Dulles Intl

Mon 1/2

12:30-09:00

2 stops15h 30m

£455

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 52 resultsSorted by cheapest first

...

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.

DUB-IAD

DUB-BWI

DUB-DCA

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.

IE0-WAS

DUB-IAD

DUB-BWI

DUB-DCA

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

Currently, November is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £386). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of £578). 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?

When flying from Ireland to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 Saturday, which is when the least amount of flights are scheduled (9 on average).

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

About 14% of weekly flights between Ireland and Washington, D.C. have experienced delays in the past year, with the average delay time being 149 minutes.

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

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

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

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Washington, D.C. flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Ireland to Washington, D.C., you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown with Aer Lingus,JetBlue, andIcelandair from Ireland to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,723 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Aer Lingus

7.3

Good

1,723 reviews

Aer Lingus

7.3

Good

1,723 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,May 2026

DUB - EWR

JetBlue

7.1

Good

3,031 reviews

Aer Lingus

7.3

Good

1,723 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,May 2026

DUB - EWR

Icelandair

6.9

Okay

736 reviews

Aer Lingus

7.3

Good

1,723 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,May 2026

DUB - EWR

Related info for your journey

How long is the flight from Ireland to Washington, D.C.?
There are many flights that can get you from Ireland to Washington, D.C. in 11h 40m. Fly via Icelandair or Delta to get the fastest option. Ireland and Washington, D.C. are separated by a distance of 3393 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from Ireland to Washington, D.C.?
While some choose either Dublin - Baltimore/Washington or Dublin - Washington, D.C. Dulles Intl, Dublin - Washington, D.C. Reagan-National 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: Qatar Airways (90%), American Airlines (86%), Aer Lingus (86%).
What are the cheapest flights from Ireland to Washington, D.C.?
On average you can expect to pay £580 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is £420 while the most popular route, (Dublin - Washington, D.C. Reagan-National) is currently priced at £465.
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, November is the cheapest month in which you can book a flight from Ireland to Washington, D.C. (average of £386). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of £578). 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

Alexandria

Gaithersburg

Oxon Hill

Hanover

Woodbridge

Glen Burnie

Springfield

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Top destinations

Washington, D.C. flight routes

Alternative routes for Ireland to Washington, D.C.

Heathrow to Dulles Intl flights

Gatwick to Dulles Intl flights

Heathrow to Reagan-National flights

Stansted to Dulles Intl flights

London City to Dulles Intl flights

Gatwick to Reagan-National flights

Luton to Dulles Intl flights

Manchester to Dulles Intl flights

Edinburgh to Dulles Intl flights

London City to Reagan-National flights

Edinburgh to Reagan-National flights

Manchester to Reagan-National flights

Glasgow Intl to Dulles Intl flights

Leeds to Dulles Intl flights

Birmingham to Dulles Intl flights

Glasgow Intl to Reagan-National flights

Birmingham to Reagan-National flights

Southampton to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Bristol to Dulles Intl flights

Newcastle upon Tyne to Reagan-National flights

Belfast Intl to Dulles Intl flights

Dublin to Dulles Intl flights

Belfast City to Dulles Intl flights

Southend to Dulles Intl flights

Madrid to Dulles Intl flights

Cardiff to Reagan-National flights

Bristol to Reagan-National flights

Frankfurt to Dulles Intl flights

Exeter to Dulles Intl flights

Cardiff to Dulles Intl flights

Inverness to Reagan-National flights

Inverness to Dulles Intl flights

Norwich to Reagan-National flights

Amsterdam to Dulles Intl flights

Bruxelles-National to Dulles Intl flights

Istanbul to Dulles Intl flights

Aberdeen to Reagan-National flights

Aberdeen to Dulles Intl flights

Grimsby to Reagan-National flights

Southampton to Reagan-National flights

Top 4 airlines flying from Ireland to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£318	Average£412	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£328	Average£689	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£335	Average£451	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Icelandair	Cheapest£366	Average£467	FlexibilityNo cancel fee	On-time76%	Search Icelandair 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 £219

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/11. 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.

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 25 August 2026.

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 25 August 2026.

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 25 August 2026.

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 25 August 2026.

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 25 August 2026.

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 25 August 2026.

Last-minute flights from Ireland to Washington, D.C.Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 25 August 2026 and is based on user searches.

Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 25 August 2026 and is based on user searches.

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 25 August 2026.

Search for one-way flight options from Ireland to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 25 August 2026.

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

Round-trip from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

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

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 25 August 2026.

When flying from Ireland to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 Saturday, which is when the least amount of flights are scheduled (9 on average).

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

About 14% of weekly flights between Ireland and Washington, D.C. have experienced delays in the past year, with the average delay time being 149 minutes.

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

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

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

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Ireland to Washington, D.C. flights?

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Ireland to Washington, D.C., you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown with Aer Lingus,JetBlue, andIcelandair from Ireland to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Ireland to Washington, D.C.?

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 Washington, D.C.?

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.

Complete your trip

Complete your trip to Washington, D.C. by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Ireland to Washington, D.C. by cabin class

Find flights from Ireland to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ireland and Washington, D.C. flights

Browse other Ireland and Washington, D.C. flight options. Last updated on 25 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Ireland to Washington, D.C. flights

Consider these flights travelling from Ireland to Washington, D.C..

Other flights to Washington, D.C.

Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 25 August 2026.

Top 4 airlines flying from Ireland to Washington, D.C.

Fly with Cheapflights

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 25 August 2026.

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 25 August 2026.

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 25 August 2026.

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated 25 August 2026 and is based on user searches.

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 25 August 2026.