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

British Airways, Delta, and Icelandair can get you from Ireland to Washington, D.C. in just under 12h 05m. Your travel time can differ by up to 1h 05m. There are 3393 mi between Ireland and Washington, D.C.. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

When deciding which route to take from Ireland to Washington, D.C. consider Dublin - Washington, D.C. Dulles Intl, Dublin - Baltimore/Washington or Dublin - Washington, D.C. Reagan-National as they are the most popular.

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

On average you can expect to pay $1,271 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is $444 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at $454.

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

Consider Qatar Airways (90%), American Airlines (84%) or Aer Lingus (84%) when booking your flight. These represent the most reliable airlines when flying from Ireland to Washington, D.C..

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 vacation 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.

$362+ Cheap Flights from Ireland to Washington, D.C.

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

Cheapest

Best

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 October 4, 2026.

Fri 11/1311:30 am -

1 stop12h 00m

Mon 11/237:40 pm -

1 stop9h 35m

Deal found 10/4

$449

Thu 11/1211:30 am -

1 stop12h 00m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$454

Tue 11/1011:30 am -

1 stop12h 00m

Sat 11/147:40 pm -

1 stop9h 35m

Deal found 9/29

$457

Tue 11/1711:30 am -

1 stop12h 00m

Tue 11/247:40 pm -

1 stop9h 35m

Deal found 9/29

$459

Fri 11/2011:30 am -

1 stop12h 10m

Thu 12/37:40 pm -

1 stop9h 35m

Deal found 9/29

$461

Tue 11/1011:30 am -

1 stop12h 10m

Sat 11/147:40 pm -

1 stop9h 35m

Deal found 9/29

$462

Tue 12/2211:30 am -

1 stop12h 00m

Sat 1/97:40 pm -

1 stop9h 35m

Deal found 10/4

$466

Wed 11/2511:30 am -

1 stop12h 00m

Mon 11/307:40 pm -

1 stop9h 35m

Deal found 10/3

$468

Wed 11/1111:30 am -

1 stop12h 00m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$471

Mon 12/2111:30 am -

1 stop12h 00m

Sat 1/97:40 pm -

1 stop9h 35m

Deal found 9/30

$475

Wed 11/411:30 am -

1 stop12h 00m

Thu 11/127:40 pm -

1 stop9h 35m

Deal found 10/2

$477

Thu 11/1211:30 am -

1 stop12h 10m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$501

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 layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.

Thu 11/58:55 am -

1 stop13h 10m

Wed 11/116:55 pm -

1 stop14h 10m

Deal found 9/29

$547

Fri 11/68:50 am -

1 stop12h 05m

Thu 11/126:20 pm -

2 stops13h 20m

Deal found 9/29

$555

Wed 12/911:30 am -

1 stop12h 10m

Sun 12/137:40 pm -

1 stop9h 35m

Deal found 10/3

$584

Tue 10/275:10 am -

1 stop14h 25m

Tue 11/310:20 pm -

Nonstop7h 00m

Deal found 9/29

$590

Tue 10/271:35 pm -

1 stop12h 22m

Tue 11/39:05 am -

1 stop17h 25m

Deal found 9/29

$615

Tue 12/2212:30 pm -

2 stops33h 45m

Sat 1/98:30 pm -

2 stops16h 40m

Deal found 10/4

$659

Sat 11/77:50 am -

2 stops19h 48m

Wed 11/114:00 pm -

2 stops14h 30m

Deal found 10/3

$829

Thu 11/52:00 pm -

1 stop11h 09m

Mon 11/92:06 pm -

1 stop10h 44m

Deal found 9/30

$868

Mon 11/162:00 pm -

1 stop14h 07m

Mon 11/2312:59 pm -

2 stops11h 51m

Deal found 10/2

$881

Thu 11/58:50 am -

2 stops14h 03m

Wed 11/111:20 pm -

2 stops14h 40m

Deal found 9/29

$556

Fri 11/68:50 am -

2 stops16h 09m

Thu 11/121:20 pm -

2 stops14h 40m

Deal found 9/29

$556

Tue 10/209:50 am -

2 stops18h 09m

Tue 11/106:10 am -

1 stop21h 00m

Deal found 9/29

$618

Sun 11/812:05 pm -

Nonstop8h 15m

Sat 11/1410:20 pm -

Nonstop7h 00m

Deal found 9/29

$670

Thu 11/58:05 pm -

1 stop24h 35m

Mon 11/96:05 pm -

1 stop17h 40m

Deal found 9/30

$682

Sun 11/112:05 pm -

Nonstop8h 15m

Sat 11/710:20 pm -

Nonstop7h 00m

Deal found 9/30

$668

Sun 11/88:45 am -

1 stop13h 20m

Sat 11/146:55 pm -

1 stop11h 20m

Deal found 9/29

$682

Fri 11/69:30 am -

1 stop9h 57m

Thu 11/123:13 pm -

1 stop13h 42m

Deal found 9/30

$674

Tue 11/175:45 am -

1 stop15h 00m

Tue 11/2412:35 pm -

2 stops15h 25m

Deal found 10/3

$675

Thu 11/128:05 pm -

1 stop24h 35m

Mon 11/169:45 pm -

1 stop14h 00m

Deal found 10/1

$683

Thu 11/57:50 am -

2 stops17h 08m

Mon 11/912:55 pm -

2 stops17h 35m

Deal found 9/30

$832

Thu 11/122:00 pm -

1 stop11h 09m

Mon 11/163:54 pm -

1 stop8h 56m

Deal found 10/1

$868

Fri 1/82:00 pm -

1 stop12h 19m

Tue 1/129:59 am -

1 stop14h 51m

Deal found 10/2

$886

Fri 11/610:40 am -

1 stop13h 29m

Thu 11/1212:34 pm -

2 stops13h 56m

Deal found 9/30

$674

Fri 11/138:50 am -

2 stops14h 09m

Mon 11/231:20 pm -

2 stops14h 40m

Deal found 10/4

$680

Thu 11/127:50 am -

2 stops15h 28m

Mon 11/1612:55 pm -

2 stops17h 35m

Deal found 10/1

$832

Mon 11/168:05 pm -

2 stops49h 15m

Mon 11/236:05 pm -

1 stop17h 40m

Deal found 10/2

$698

Mon 11/167:50 am -

2 stops19h 09m

Mon 11/2312:55 pm -

2 stops17h 35m

Deal found 10/2

$871

Mon 11/28:50 am -

2 stops14h 03m

Mon 11/91:20 pm -

2 stops14h 40m

Deal found 10/3

$680

Sat 12/59:00 am -

1 stop12h 24m

Wed 12/910:15 pm -

Nonstop7h 05m

Deal found 10/3

$683

Fri 11/67:40 am -

2 stops17h 43m

Mon 11/99:55 am -

2 stops32h 30m

Deal found 10/3

$869

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated October 4, 2026 and is based on user searches.

Wed 11/411:30 am -

1 stop12h 00m

Thu 11/127:40 pm -

1 stop9h 35m

Deal found 10/2

$477

Tue 11/1011:30 am -

1 stop12h 00m

Sat 11/147:40 pm -

1 stop9h 35m

Deal found 9/29

$457

Tue 11/1011:30 am -

1 stop12h 10m

Sat 11/147:40 pm -

1 stop9h 35m

Deal found 9/29

$462

Tue 11/1011:30 am -

1 stop12h 00m

Tue 11/247:40 pm -

1 stop9h 35m

Deal found 9/30

$494

Tue 11/1011:30 am -

1 stop12h 00m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$497

Wed 11/1111:30 am -

1 stop12h 00m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$471

Thu 11/1211:30 am -

1 stop12h 00m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$454

Thu 11/1211:30 am -

1 stop12h 10m

Thu 11/267:40 pm -

1 stop9h 35m

Deal found 9/30

$501

Fri 11/1311:30 am -

1 stop12h 00m

Mon 11/237:40 pm -

1 stop9h 35m

Deal found 10/4

$449

Tue 11/1711:30 am -

1 stop12h 00m

Tue 11/247:40 pm -

1 stop9h 35m

Deal found 9/29

$459

Fri 11/2011:30 am -

1 stop12h 10m

Thu 12/37:40 pm -

1 stop9h 35m

Deal found 9/29

$461

Wed 11/2511:30 am -

1 stop12h 00m

Mon 11/307:40 pm -

1 stop9h 35m

Deal found 10/3

$468

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 October 4, 2026.

Sun 12/2011:30 am -

1 stop12h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$362

Wed 1/611:30 am -

1 stop12h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/4

$367

Tue 1/193:05 pm -

2 stops30h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$383

Sun 1/175:45 pm -

2 stops27h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$385

Mon 1/188:50 pm -

2 stops24h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$388

Thu 1/218:50 pm -

2 stops28h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$390

Wed 1/206:35 pm -

2 stops26h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$392

Thu 12/1711:30 am -

1 stop12h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/1

$394

Fri 12/115:55 am -

3 stops37h 54m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/29

$396

Fri 11/1312:20 pm -

Nonstop8h 25m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/29

$400

Mon 10/198:15 pm -

3 stops48h 30m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/2

$403

Fri 12/115:55 am -

3 stops41h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/29

$405

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$449 (Gotogate)
One-way from	$362 (oojo)
Popular in	March
Cheapest in	February
Average price	$614
Good round-trip deal	$556 or less
Good one-way deal	$542 or less

Provider with most accurate pricing for Dublin-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Dublin-Washington, D.C. (WAS) flights.

Search Deals

From Ireland to Washington, D.C. (WAS)

Search Deals

One-way flight from Ireland to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 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 round-trip

DublinWashington, D.C.

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

DUBIAD

Dublin

Tue 3/9

5:45 am-3:45 pm

1 stop15h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$404

DublinWashington, D.C.

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

DUBIAD

Dublin

Mon 12/7

8:50 am-3:55 pm

1 stop12h 05m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$407

DublinWashington, D.C.

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

DUBDCA

Dublin

Tue 3/9

8:50 am-7:12 pm

2 stops15h 22m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$409

DublinBaltimore

DUB Dublin - BWI Baltimore/Washington

DUBBWI

Dublin

Thu 2/25

8:50 am-7:20 pm

2 stops15h 30m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$409

DublinBaltimore

DUB Dublin - BWI Baltimore/Washington

DUBBWI

Dublin

Fri 10/30

7:05 am-8:17 am

2 stops29h 12m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$410

DublinWashington, D.C.

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

DUBIAD

Dublin

Tue 10/20

6:45 am-3:45 pm

3 stops38h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$410

DublinWashington, D.C.

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

DUBIAD

Dublin

Tue 1/19

6:00 am-4:30 pm

1 stop15h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$411

DublinBaltimore

DUB Dublin - BWI Baltimore/Washington

DUBBWI

Dublin

Mon 3/1

8:50 am-7:20 pm

2 stops15h 30m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$412

DublinBaltimore

DUB Dublin - BWI Baltimore/Washington

DUBBWI

Dublin

Mon 12/7

5:45 am-5:58 pm

2 stops17h 13m

Baltimore/Washington

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$412

DublinWashington, D.C.

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

DUBIAD

Dublin

Sun 2/28

5:45 am-5:30 pm

2 stops16h 45m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/2

Showing 1-10 of 60 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

SNN-DCA

SNN-IAD

Estimated round-trip 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

SNN-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 $540). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of $783). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to Washington, D.C. as you normally would.

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 13% of weekly flights between Ireland and Washington, D.C. have experienced delays in the past year, with the average delay time being 147 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 early afternoon 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 Sunday 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 last 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.?

The price you pay for your flight from Ireland to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with United Airlines and Aer Lingus from Ireland to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,282 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

United Airlines

7.4

Good

10,282 reviews

United Airlines

7.4

Good

10,282 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Aer Lingus

7.3

Good

1,811 reviews

United Airlines

7.4

Good

10,282 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

How long is the flight from Ireland to Washington, D.C.?
British Airways, Delta, and Icelandair can get you from Ireland to Washington, D.C. in just under 12h 05m. Your travel time can differ by up to 1h 05m. There are 3393 mi between Ireland and Washington, D.C.. Both multi-stop and nonstop flights can be found to your destination and back.
What are the most popular routes from Ireland to Washington, D.C.?
When deciding which route to take from Ireland to Washington, D.C. consider Dublin - Washington, D.C. Dulles Intl, Dublin - Baltimore/Washington or Dublin - Washington, D.C. Reagan-National as they are the most popular.
What are the most reliable airlines from Ireland to Washington, D.C.?
Consider Qatar Airways (90%), American Airlines (84%) or Aer Lingus (84%) when booking your flight. These represent the most reliable airlines when flying from Ireland to Washington, D.C..
What are the cheapest flights from Ireland to Washington, D.C.?
On average you can expect to pay $1,271 for a flight from Ireland to Washington, D.C.. The cheapest flight overall is $444 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at $454.
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 vacation 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 $540). Flying from Ireland to Washington, D.C. in July is currently the most expensive (average of $783). 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

Alexandria

Arlington

Owings Mills

Lanham

Woodbridge

Tysons

Reston

Herndon

Hyattsville

Rockville

Fredericksburg

Falls Church

Hanover

Laurel

Springfield

Oxon Hill

Clinton

Hunt Valley

Waldorf

Silver Spring

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Washington, D.C. flight routes

Alternative routes for Ireland to Washington, D.C.

Heathrow to Dulles Intl flights

Charles de Gaulle to Dulles Intl flights

Frankfurt to Dulles Intl flights

Heathrow to Reagan-National flights

Gatwick to Dulles Intl flights

London City to Dulles Intl flights

Madrid to Dulles Intl flights

Orly to Dulles Intl flights

Vienna to Dulles Intl flights

Dublin to Dulles Intl flights

Amsterdam to Dulles Intl flights

Barcelona-El Prat to Dulles Intl flights

Munich to Dulles Intl flights

Berlin to Dulles Intl flights

Leonardo da Vinci/Fiumicino to Dulles Intl flights

Istanbul to Dulles Intl flights

Zurich to Dulles Intl flights

Geneva to Dulles Intl flights

Vicenza to Dulles Intl flights

Bruxelles-National to Reagan-National flights

Malpensa to Dulles Intl flights

Budapest to Dulles Intl flights

Lisbon to Dulles Intl flights

Budapest to Reagan-National flights

Edinburgh to Dulles Intl flights

Manchester to Dulles Intl flights

Top 2 airlines flying from Ireland to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$438	Average$465	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$454	Average$642	FlexibilityNo cancel fee	On-timeN/A

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$362+ Cheap flights from Ireland to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/20. Fares are subject to change and may not be available on all flights or dates of travel.

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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 October 4, 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 October 4, 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 layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.

Discover carefully curated flight deals from Ireland to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.

Last-minute flights from Ireland to Washington, D.C.Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated October 4, 2026 and is based on user searches.

Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated October 4, 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 October 4, 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 October 4, 2026.

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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.

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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 October 4, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to Washington, D.C. as you normally would.

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 13% of weekly flights between Ireland and Washington, D.C. have experienced delays in the past year, with the average delay time being 147 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 early afternoon 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 Sunday 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 last 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.?

The price you pay for your flight from Ireland to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Washington, D.C.

See what other customers who have flown with United Airlines and Aer Lingus from Ireland to Washington, D.C. have to say. You can also see how each airline compares 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.?

Traveling to a place near Washington, D.C.?

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Alternative routes for Ireland to Washington, D.C.

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Complete your trip

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

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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 October 4, 2026.

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Ireland to Washington, D.C. flights

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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 October 4, 2026.

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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 October 4, 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 layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.

Last-minute flights from Ireland to Washington, D.C.
Discover last-minute flight deals from Ireland to Washington, D.C.. Data last updated October 4, 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 October 4, 2026.