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 Icelandair ($365), WestJet ($378), and TAP AIR PORTUGAL ($415).

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. Wednesday afternoons 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 $998, our data shows the cheapest flight currently is $442. When looking at the most popular route, (Dublin - Washington, D.C. Dulles Intl), you can expect to pay $435 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: Lufthansa (89%), Air Canada (89%), United Airlines( 89%).

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 24% 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 149% 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 $697 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 $564. You can even find prices in January for less than $564, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $276. The month of July 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 38%.

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.

$617+ Flights from Ireland to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Ireland to Dulles Intl

Most accurate provider	Gurufare 3 stars
Most trusted provider	Gurufare 3 stars
Round-trip from	$504 (Booking.com)
One-way from	$365 (oojo)
Popular in	July
Cheapest in	January
Average price	$552
Good round-trip deal	$645 or less
Good one-way deal	$456 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.

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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. 19% potential increase in price ($137 potential increase over avg. RT price).

Search Deals

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

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Average for round-trip flights in April 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 April 24, 2025.

Mon 6/97:05 pmDUB - IAD

1 stop29h 54mScandinavian Airlines

Mon 6/1610:05 pmIAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 4/23

$504

Tue 4/2912:15 pmDUB - IAD

1 stop12h 05mIcelandair

Mon 5/128:30 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 4/23

$506

Sat 5/2412:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Fri 5/305:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 4/23

$512

Fri 5/98:35 amDUB - IAD

1 stop12h 10mBritish Airways

Sat 5/1710:45 pmIAD - DUB

1 stop10h 40mBritish Airways

Deal found 4/23

$520

Tue 4/299:50 amDUB - IAD

1 stop11h 18mUnited Airlines

Tue 5/67:00 pmIAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 4/22

$521

Thu 5/16:00 amORK - IAD

1 stop14h 35mMultiple Airlines

Mon 5/56:30 pmIAD - ORK

1 stop15h 10mMultiple Airlines

Deal found 4/24

$533

Fri 5/211:45 amDUB - IAD

1 stop30h 57mMultiple Airlines

Sun 5/1110:40 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 4/23

$533

Fri 5/210:40 amDUB - IAD

1 stop13h 45mLufthansa

Sat 5/1010:05 pmIAD - DUB

Nonstop7h 15mLufthansa

Deal found 4/23

$534

Thu 5/296:40 pmDUB - IAD

1 stop26h 35mSWISS

Wed 6/48:45 pmIAD - DUB

1 stop16h 05mSWISS

Deal found 4/23

$537

Thu 5/16:00 amORK - IAD

2 stops22h 07mDelta

Mon 5/59:20 pmIAD - ORK

1 stop12h 20mDelta

Deal found 4/24

$539

Wed 4/309:50 amDUB - IAD

2 stops16h 25mAir Canada

Wed 5/72:25 pmIAD - DUB

1 stop12h 50mAir Canada

Deal found 4/23

$543

Tue 5/69:20 amDUB - IAD

2 stops33h 21mAustrian Airlines

Tue 5/135:50 pmIAD - DUB

2 stops32h 30mAustrian Airlines

Deal found 4/22

$545

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 April 24, 2025.

Sat 5/312:15 pmDUB - IAD

1 stop12h 05mIcelandair

Mon 5/128:30 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 4/22

$504

Sat 5/2410:15 amDUB - IAD

1 stop14h 44mScandinavian Airlines

Sat 6/710:05 pmIAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 4/23

$511

Sat 5/2412:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Fri 5/305:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 4/23

$512

Mon 4/289:50 amDUB - IAD

1 stop11h 18mUnited Airlines

Mon 5/57:00 pmIAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 4/21

$520

Fri 5/212:45 pmDUB - IAD

1 stop12h 20mBritish Airways

Thu 5/85:40 pmIAD - DUB

1 stop11h 10mBritish Airways

Deal found 4/23

$522

Thu 5/18:40 amDUB - IAD

1 stop12h 35mMultiple Airlines

Thu 5/2910:15 pmIAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 4/22

$528

Fri 5/210:40 amDUB - IAD

1 stop13h 45mLufthansa

Mon 5/510:05 pmIAD - DUB

Nonstop7h 15mLufthansa

Deal found 4/22

$531

Mon 5/55:55 amDUB - IAD

2 stops18h 58mDelta

Mon 5/1212:25 pmIAD - DUB

2 stops17h 00mDelta

Deal found 4/21

$536

Wed 4/309:50 amDUB - IAD

2 stops16h 25mAir Canada

Sun 5/1110:25 amIAD - DUB

1 stop16h 50mAir Canada

Deal found 4/23

$543

Tue 5/69:20 amDUB - IAD

2 stops33h 21mAustrian Airlines

Tue 5/135:50 pmIAD - DUB

2 stops32h 30mAustrian Airlines

Deal found 4/22

$545

Thu 5/111:45 amDUB - IAD

1 stop12h 56mAmerican Airlines

Wed 5/71:59 pmIAD - DUB

1 stop10h 31mAmerican Airlines

Deal found 4/22

$548

Mon 5/266:40 pmDUB - IAD

2 stops24h 45mSWISS

Wed 6/48:45 pmIAD - DUB

1 stop16h 05mSWISS

Deal found 4/23

$562

Last-minute flights from Ireland to Dulles Intl
Discover last-minute flight deals from Ireland to Dulles Intl. Data last updated April 24, 2025 and is based on user searches.

Tue 4/2912:15 pmDUB - IAD

1 stop12h 05mIcelandair

Mon 5/128:30 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 4/23

$506

Tue 4/299:50 amDUB - IAD

1 stop11h 18mUnited Airlines

Tue 5/67:00 pmIAD - DUB

Nonstop7h 10mUnited Airlines

Deal found 4/22

$521

Wed 4/309:50 amDUB - IAD

2 stops16h 25mAir Canada

Sun 5/1110:25 amIAD - DUB

1 stop16h 50mAir Canada

Deal found 4/23

$543

Wed 4/309:50 amDUB - IAD

2 stops16h 25mAir Canada

Wed 5/72:25 pmIAD - DUB

1 stop12h 50mAir Canada

Deal found 4/23

$543

Thu 5/14:00 pmDUB - IAD

Nonstop7h 55mAer Lingus

Fri 5/95:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 4/23

$524

Thu 5/16:00 amORK - IAD

1 stop14h 35mMultiple Airlines

Mon 5/56:30 pmIAD - ORK

1 stop15h 10mMultiple Airlines

Deal found 4/24

$533

Thu 5/16:00 amORK - IAD

2 stops22h 07mDelta

Mon 5/59:20 pmIAD - ORK

1 stop12h 20mDelta

Deal found 4/24

$539

Thu 5/16:40 pmDUB - IAD

2 stops24h 35mSWISS

Thu 5/88:45 pmIAD - DUB

1 stop16h 05mSWISS

Deal found 4/23

$563

Thu 5/17:40 amSNN - IAD

1 stop17h 25mBritish Airways

Mon 5/55:40 pmIAD - SNN

1 stop12h 40mBritish Airways

Deal found 4/23

$662

Thu 5/13:25 pmORK - IAD

2 stops29h 10mAir France

Mon 5/55:25 pmIAD - ORK

2 stops16h 15mAir France

Deal found 4/24

$749

Fri 5/212:45 pmDUB - IAD

1 stop12h 20mBritish Airways

Thu 5/85:40 pmIAD - DUB

1 stop11h 10mBritish Airways

Deal found 4/23

$522

Fri 5/211:45 amDUB - IAD

1 stop30h 57mMultiple Airlines

Sun 5/1110:40 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 4/23

$533

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 April 24, 2025.

Wed 6/412:15 pmDUB - IAD

1 stop12h 05mIcelandair

Deal found 4/23

$365

Tue 5/278:50 pmDUB - IAD

2 stops47h 03mMultiple Airlines

Deal found 4/23

$366

Wed 6/411:30 amDUB - IAD

2 stops16h 24mWestJet

Deal found 4/23

$378

Tue 5/276:50 pmDUB - IAD

1 stop25h 30mTAP AIR PORTUGAL

Deal found 4/23

$415

Wed 5/74:35 pmDUB - IAD

Nonstop7h 55mAer Lingus

Deal found 4/22

$468

Thu 5/2912:40 pmDUB - IAD

1 stop12h 19mScandinavian Airlines

Deal found 4/23

$512

Sun 5/1111:45 amDUB - IAD

1 stop12h 47mBritish Airways

Deal found 4/23

$562

Tue 5/2712:30 pmDUB - IAD

Nonstop8h 00mLufthansa

Deal found 4/21

$563

Tue 7/221:35 pmDUB - IAD

1 stop27h 10mTurkish Airlines

Deal found 4/23

$604

Sat 6/75:30 pmSNN - IAD

1 stop31h 45mAer Lingus

Deal found 4/23

$711

Sat 6/77:40 amSNN - IAD

2 stops16h 15mBritish Airways

Deal found 4/23

$717

Fri 6/2712:30 pmSNN - IAD

1 stop14h 57mMultiple Airlines

Deal found 4/23

$769

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

Mon 6/9

7:05 pm-7:59 pm

1 stop29h 54m

Washington, D.C. Dulles Intl

Mon 6/16

10:05 pm-11:50 am

1 stop32h 45m

$504

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 5/24

12:50 pm-3:50 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

Fri 5/30

5:20 pm-5:10 am

Nonstop6h 50m

$512

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 6/18

12:15 pm-7:20 pm

1 stop12h 05m

Washington, D.C. Dulles Intl

Fri 7/11

8:30 pm-1:15 pm

1 stop11h 45m

$513

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/9

8:35 am-3:45 pm

1 stop12h 10m

Washington, D.C. Dulles Intl

Sat 5/17

10:45 pm-2:25 pm

1 stop10h 40m

$520

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 5/6

9:50 am-4:08 pm

1 stop11h 18m

Washington, D.C. Dulles Intl

Tue 5/13

7:00 pm-7:10 am

Nonstop7h 10m

$521

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/9

8:45 am-4:15 pm

1 stop12h 30m

Washington, D.C. Dulles Intl

Sat 5/17

10:05 pm-10:20 am

Nonstop7h 15m

$530

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 5/26

10:40 am-7:25 pm

1 stop13h 45m

Washington, D.C. Dulles Intl

Sun 6/1

10:15 pm-10:20 am

Nonstop7h 05m

$534

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 5/29

6:40 pm-4:15 pm

1 stop26h 35m

Washington, D.C. Dulles Intl

Tue 6/3

8:45 pm-5:50 pm

1 stop16h 05m

$537

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 5/6

9:20 am-1:41 pm

2 stops33h 21m

Washington, D.C. Dulles Intl

Tue 5/13

5:50 pm-7:20 am

2 stops32h 30m

$545

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 5/18

5:55 am-3:35 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Mon 6/30

8:30 pm-4:40 pm

2 stops15h 10m

$548

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 34 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 June is currently the most expensive (average of $383). 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 11% 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 Monday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (10 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 Austrian Airlines 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

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,920 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

780 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,582 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,685 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 Icelandair ($365), WestJet ($378), and TAP AIR PORTUGAL ($415).
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: Lufthansa (89%), Air Canada (89%), United Airlines( 89%).
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 $998, our data shows the cheapest flight currently is $442. When looking at the most popular route, (Dublin - Washington, D.C. Dulles Intl), you can expect to pay $435 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 June is currently the most expensive (average of $383). 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

Fairfax

Tysons

Springfield

Rockville

Fredericksburg

Gaithersburg

Silver Spring

Linthicum Heights

Falls Church

Laurel

Easton

Herndon

Sterling

Bowie

Towson

National Harbor

Oxon Hill

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$433	Average$634	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$612	Average$744	FlexibilityNo cancel fee	On-time69%

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$365+ 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 6/4. 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

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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 April 24, 2025.

Most accurate provider

Most trusted provider

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 April 24, 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 April 24, 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 April 24, 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 April 24, 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 Austrian Airlines 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 April 24, 2025.