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

The cheapest airlines for a one-way flight from Ireland to Washington, D.C. Dulles Intl Airport are Aer Lingus ($451), Icelandair ($500), and TAP AIR PORTUGAL ($522).

What is the cheapest day to fly from Ireland to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Ireland to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most popular route from Ireland to Washington, D.C. Dulles Intl Airport is Dublin - Washington, D.C. Dulles Intl. You may also consider Shannon - Washington, D.C. Dulles Intl or Cork - Washington, D.C. Dulles Intl.

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

While on average a flight from Ireland to Washington, D.C. Dulles Intl Airport is generally $1,106, our data shows the cheapest flight currently is $423. When looking at the most popular route, (Dublin - Washington, D.C. Dulles Intl), you can expect to pay $369 for that flight.

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

Before booking your flight to Washington, D.C. Dulles Intl Airport from Ireland, check out the most reliable airlines to get you to your destination on time: SWISS (89%), Air Canada (88%), United Airlines( 88%).

What are the most popular airlines that fly from Ireland to Washington, D.C. Dulles Intl Airport?

When booking a flight from Ireland to Washington, D.C. Dulles Intl Airport, you may want to consider flying on Aer Lingus, Icelandair or United Airlines as they are the most popular for this route.

What is the cheapest day to fly round-trip from Ireland to Washington, D.C. Dulles Intl Airport?

Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 31% on the overall cost on flights from Ireland to Washington, D.C. Dulles Intl Airport.

How far in advance should I book a flight from Ireland to Washington, D.C. Dulles Intl Airport?

Users have found that booking a flight from Ireland to Washington, D.C. Dulles Intl Airport at least 27 days early can save you up to 138% on average compared to booking a flight this week. If booking 27 days before your flight isn’t an option for you, users have found flights from Ireland to Washington, D.C. Dulles Intl Airport for as little as $497 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $645 for flights departing within the next 3 days.

What is the cheapest month to fly from Ireland to Washington, D.C. Dulles Intl Airport?

The best pricing can be found in the month of January. Prices to Washington, D.C. Dulles Intl Airport from Ireland average $569. You can even find prices in January for less than $569, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $274. The month of August appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Ireland. Flying in the targeted month can save you up to 35%.

Can I find deals for flights from Ireland to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Ireland to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ireland to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Dulles Intl.

Can I find deals for business class flights from Ireland to Dulles Intl?

Yes. Cheapflights offers flight deals from Ireland to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$607+ Flights from Ireland to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Ireland to Dulles Intl

Round-trip from	$526 (American Airlines)
One-way from	$451 (Gurufare)
Popular in	August
Cheapest in	January
Average price	$683
Good round-trip deal	$717 or less
Good one-way deal	$464 or less

From Ireland to Washington, D.C. Dulles Intl

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One-way flight from Ireland to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($95 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Price to beat on a round-trip flight from Ireland to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Ireland to Washington, D.C. Dulles Intl.

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Find flight deals from Ireland to Dulles Intl

Cheapest flights from Ireland to Dulles Intl
Explore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Thu 11/135:55 amDUB - IAD

2 stops15h 36mDelta

Tue 11/255:10 pmIAD - DUB

2 stops14h 30mDelta

Deal found 6/10

$520

Thu 6/1911:45 amDUB - IAD

1 stop10h 26mAmerican Airlines

Wed 6/251:08 pmIAD - DUB

1 stop11h 22mAmerican Airlines

Deal found 6/11

$526

Tue 6/2410:30 amDUB - IAD

1 stop14h 40mBritish Airways

Sat 7/510:45 pmIAD - DUB

1 stop15h 40mBritish Airways

Deal found 6/12

$540

Thu 11/134:20 pmDUB - IAD

Nonstop8h 10mAer Lingus

Tue 11/256:15 pmIAD - DUB

1 stop10h 25mAer Lingus

Deal found 6/10

$551

Tue 8/197:05 pmDUB - IAD

1 stop29h 54mScandinavian Airlines

Mon 9/110:05 pmIAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 6/10

$557

Fri 7/2512:30 pmDUB - IAD

Nonstop8h 00mLufthansa

Fri 8/110:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Deal found 6/10

$569

Sat 8/169:20 amDUB - IAD

1 stop16h 41mUnited Airlines

Mon 9/17:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 6/10

$583

Thu 7/312:15 pmDUB - IAD

1 stop10h 05mIcelandair

Wed 8/611:15 pmIAD - DUB

1 stop30h 50mIcelandair

Deal found 6/11

$593

Wed 7/29:50 pmDUB - IAD

2 stops26h 35mMultiple Airlines

Wed 7/910:20 pmIAD - DUB

2 stops21h 25mMultiple Airlines

Deal found 6/11

$594

Sat 7/510:00 amDUB - IAD

1 stop11h 44mKLM

Sat 7/125:25 pmIAD - DUB

1 stop14h 10mKLM

Deal found 6/12

$626

Tue 9/99:15 pmSNN - IAD

1 stop25h 15mAmerican Airlines

Tue 9/305:50 pmIAD - SNN

1 stop12h 30mAmerican Airlines

Deal found 6/12

$644

Wed 10/2211:45 amORK - IAD

1 stop13h 30mBritish Airways

Fri 10/317:15 pmIAD - ORK

1 stop20h 10mBritish Airways

Deal found 6/12

$657

Best flights from Ireland to Dulles Intl
Discover carefully curated flight deals from Ireland to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Thu 6/1911:45 amDUB - IAD

1 stop10h 26mAmerican Airlines

Wed 6/251:08 pmIAD - DUB

1 stop11h 22mAmerican Airlines

Deal found 6/11

$526

Tue 6/2410:30 amDUB - IAD

1 stop12h 05mBritish Airways

Tue 7/810:40 pmIAD - DUB

1 stop13h 25mBritish Airways

Deal found 6/12

$540

Thu 6/1912:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Thu 6/265:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 6/10

$552

Tue 8/197:05 pmDUB - IAD

1 stop29h 54mScandinavian Airlines

Mon 9/110:05 pmIAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 6/10

$557

Fri 7/2512:30 pmDUB - IAD

Nonstop8h 00mLufthansa

Fri 8/110:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Deal found 6/10

$569

Sat 8/169:20 amDUB - IAD

1 stop16h 41mUnited Airlines

Mon 9/17:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 6/10

$583

Thu 7/312:15 pmDUB - IAD

1 stop10h 05mIcelandair

Wed 8/611:15 pmIAD - DUB

1 stop30h 50mIcelandair

Deal found 6/11

$593

Wed 7/29:50 pmDUB - IAD

2 stops26h 35mMultiple Airlines

Wed 7/910:20 pmIAD - DUB

2 stops21h 25mMultiple Airlines

Deal found 6/11

$594

Wed 6/258:55 amDUB - IAD

1 stop11h 40mDelta

Thu 9/48:23 pmIAD - DUB

2 stops13h 37mDelta

Deal found 6/12

$595

Fri 7/251:15 pmDUB - IAD

1 stop11h 36mAir France

Fri 8/16:30 pmIAD - DUB

1 stop23h 10mAir France

Deal found 6/10

$658

Thu 6/199:20 amDUB - IAD

2 stops11h 55mAir Canada

Sat 7/55:12 pmIAD - DUB

1 stop10h 03mAir Canada

Deal found 6/11

$672

Thu 6/261:05 pmSNN - IAD

1 stop11h 45mKLM

Tue 7/112:13 pmIAD - SNN

1 stop17h 57mKLM

Deal found 6/12

$681

Last-minute flights from Ireland to Dulles Intl
Discover last-minute flight deals from Ireland to Dulles Intl. Data last updated June 12, 2025 and is based on user searches.

Wed 6/1812:15 pmDUB - IAD

1 stop14h 55mIcelandair

Fri 7/1111:15 pmIAD - DUB

1 stop30h 50mIcelandair

Deal found 6/12

$649

Wed 6/1812:30 pmDUB - IAD

Nonstop8h 00mUnited Airlines

Fri 7/112:25 pmIAD - DUB

1 stop12h 50mUnited Airlines

Deal found 6/11

$679

Wed 6/1812:30 pmDUB - IAD

Nonstop8h 00mLufthansa

Fri 7/1110:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Deal found 6/10

$711

Thu 6/1911:45 amDUB - IAD

1 stop10h 26mAmerican Airlines

Wed 6/251:08 pmIAD - DUB

1 stop11h 22mAmerican Airlines

Deal found 6/11

$526

Thu 6/1912:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Thu 6/265:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 6/10

$552

Thu 6/195:55 amDUB - IAD

1 stop14h 40mDelta

Wed 6/258:30 pmIAD - DUB

2 stops15h 10mDelta

Deal found 6/12

$611

Thu 6/199:20 amDUB - IAD

1 stop16h 41mMultiple Airlines

Sat 7/510:15 pmIAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 6/11

$652

Thu 6/194:00 pmDUB - IAD

Nonstop7h 55mBritish Airways

Sat 7/55:20 pmIAD - DUB

Nonstop6h 50mBritish Airways

Deal found 6/11

$663

Thu 6/199:20 amDUB - IAD

2 stops11h 55mAir Canada

Sat 7/55:12 pmIAD - DUB

1 stop10h 03mAir Canada

Deal found 6/11

$672

Thu 6/196:00 amORK - IAD

1 stop14h 35mMultiple Airlines

Mon 6/239:20 pmIAD - ORK

1 stop12h 20mMultiple Airlines

Deal found 6/11

$701

Thu 6/196:00 amORK - IAD

1 stop14h 35mDelta

Mon 6/235:25 pmIAD - ORK

1 stop16h 10mDelta

Deal found 6/11

$707

Thu 6/196:00 amORK - IAD

2 stops15h 44mKLM

Mon 6/235:25 pmIAD - ORK

1 stop25h 05mKLM

Deal found 6/11

$719

One-way flights from Ireland to Dulles Intl
Search for one-way flight options from Ireland to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Sun 11/168:05 pmSNN - IAD

2 stops24h 30mAer Lingus

Deal found 6/11

$451

Wed 8/1310:20 amDUB - IAD

3 stops28h 56mMultiple Airlines

Deal found 6/10

$466

Mon 10/136:05 amSNN - IAD

3 stops42h 54mMultiple Airlines

Deal found 6/10

$476

Wed 9/104:35 pmDUB - IAD

Nonstop7h 55mAer Lingus

Deal found 6/11

$490

Tue 6/242:15 pmDUB - IAD

1 stop12h 55mIcelandair

Deal found 6/10

$500

Thu 8/215:30 amDUB - IAD

1 stop20h 20mTAP AIR PORTUGAL

Deal found 6/10

$522

Wed 6/1812:40 pmDUB - IAD

1 stop12h 19mScandinavian Airlines

Deal found 6/9

$529

Wed 7/231:35 pmDUB - IAD

1 stop27h 10mTurkish Airlines

Deal found 6/10

$595

Sun 6/2212:50 pmDUB - IAD

1 stop34h 04mWestJet

Deal found 6/10

$598

Wed 8/612:30 pmDUB - IAD

Nonstop8h 00mLufthansa

Deal found 6/11

$635

Mon 8/411:05 amDUB - IAD

1 stop11h 30mBritish Airways

Deal found 6/11

$679

Mon 7/712:40 pmDUB - IAD

1 stop28h 56mAmerican Airlines

Deal found 6/11

$764

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 11/13

5:55 am-4:31 pm

2 stops15h 36m

Washington, D.C. Dulles Intl

Tue 11/25

5:10 pm-12:40 pm

2 stops14h 30m

$520

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 6/24

10:30 am-8:10 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Sat 7/5

10:45 pm-7:25 pm

1 stop15h 40m

$540

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 11/13

4:20 pm-7:30 pm

Nonstop8h 10m

Washington, D.C. Dulles Intl

Tue 11/25

6:15 pm-9:40 am

1 stop10h 25m

$551

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 8/19

7:05 pm-7:59 pm

1 stop29h 54m

Washington, D.C. Dulles Intl

Mon 9/1

10:05 pm-11:50 am

1 stop32h 45m

$557

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 7/25

12:30 pm-3:30 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

Fri 8/1

10:15 pm-10:20 am

Nonstop7h 05m

$569

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 8/16

9:20 am-9:01 pm

1 stop16h 41m

Washington, D.C. Dulles Intl

Mon 9/1

7:05 pm-7:10 am

Nonstop7h 05m

$583

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 7/31

2:15 pm-7:20 pm

1 stop10h 05m

Washington, D.C. Dulles Intl

Wed 8/6

11:15 pm-11:05 am

1 stop30h 50m

$593

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 7/2

9:50 pm-7:25 pm

2 stops26h 35m

Washington, D.C. Dulles Intl

Wed 7/9

10:20 pm-12:45 am

2 stops21h 25m

$594

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 8/15

9:30 am-6:52 pm

2 stops14h 22m

Washington, D.C. Dulles Intl

Sun 8/31

6:34 am-6:30 am

2 stops18h 56m

$612

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 7/5

10:00 am-4:44 pm

1 stop11h 44m

Washington, D.C. Dulles Intl

Sat 7/12

5:25 pm-12:35 pm

1 stop14h 10m

$626

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 37 results

Best time to book a flight from Ireland to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Ireland with our price prediction graph.

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. Dulles Intl Airport

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

Currently, August is the cheapest month in which you can book a flight from Ireland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Ireland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 IAD?

When flying from Ireland to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 15% versus a flight in the morning.

Weekly flight availability from Ireland to Washington, D.C. Dulles Intl Airport

The most flights from IE0 to IAD are scheduled on a Thursday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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).

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, KLM and Air France from Ireland to Washington, D.C.. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,946 reviews

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

7,946 reviews

Delta

8.0

Very good

7,946 reviews

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

1,358 reviews

Delta

8.0

Very good

7,946 reviews

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!

Air France

7.5

Good

1,463 reviews

Delta

8.0

Very good

7,946 reviews

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

8,790 reviews

Delta

8.0

Very good

7,946 reviews

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!

Turkish Airlines

7.3

Good

3,848 reviews

Delta

8.0

Very good

7,946 reviews

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. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Ireland to Washington, D.C. Dulles Intl Airport are Aer Lingus ($451), Icelandair ($500), and TAP AIR PORTUGAL ($522).
What are the most popular routes from Ireland to Washington, D.C. Dulles Intl Airport?
The most popular route from Ireland to Washington, D.C. Dulles Intl Airport is Dublin - Washington, D.C. Dulles Intl. You may also consider Shannon - Washington, D.C. Dulles Intl or Cork - Washington, D.C. Dulles Intl.
What are the most reliable airlines from Ireland to Washington, D.C. Dulles Intl Airport?
Before booking your flight to Washington, D.C. Dulles Intl Airport from Ireland, check out the most reliable airlines to get you to your destination on time: SWISS (89%), Air Canada (88%), United Airlines( 88%).
What are the cheapest flights from Ireland to Washington, D.C. Dulles Intl Airport?
While on average a flight from Ireland to Washington, D.C. Dulles Intl Airport is generally $1,106, our data shows the cheapest flight currently is $423. When looking at the most popular route, (Dublin - Washington, D.C. Dulles Intl), you can expect to pay $369 for that flight.
Can I find deals for flights from Ireland to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Ireland to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ireland to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Dulles Intl.
Can I find deals for business class flights from Ireland to Dulles Intl?
Yes. Cheapflights offers flight deals from Ireland to Dulles Intl 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. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Ireland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Ireland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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

Arlington

Alexandria

Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

Towson

Sterling

Bowie

Rockville

Reston

National Harbor

Springfield

Manassas

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Ireland to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$425	Average$603	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$446	Average$626	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$569	Average$756	FlexibilityNo cancel fee	On-time69%

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$451+ Cheap flights from Ireland to Dulles Intl (IAD)

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ireland to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ireland to Dulles Intl

Keep the following information in mind while searching for Ireland to Dulles Intl flight deals. Data was last updated June 12, 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 Dulles Intl

Cheapest flights from Ireland to Dulles IntlExplore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Ireland to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Washington, D.C. Dulles Intl Airport

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

What is the cheapest time of day to fly from IE to IAD?

Find hourly flight availability from Ireland to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Weekly flight availability from Ireland to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Ireland to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, KLM and Air France from Ireland to Washington, D.C.. In addition to providing an overall rating, users have also rated airlines 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 Dulles Intl. 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. Dulles Intl Airport one-way?

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

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

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

Can I find deals for flights from Ireland to Dulles Intl that include hotel bookings?

How can I find direct flights from Ireland to Dulles Intl?

Can I find deals for business class flights from Ireland to Dulles Intl?

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

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Alternative routes for Ireland to Dulles Intl

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Top 3 airlines flying from Ireland to Dulles Intl

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Cheapest flights from Ireland to Dulles Intl
Explore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.