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 TAP AIR PORTUGAL ($460), Aer Lingus ($485), and WestJet ($525).

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.

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.

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).

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 $1,137, our data shows the cheapest flight currently is $450. 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 (86%), Lufthansa (85%), American Airlines( 84%).

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 30% 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 34%.

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.

$653+ 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	$516 (British Airways)
One-way from	$409 (Kiwi.com)
Popular in	August
Cheapest in	January
Average price	$685
Good round-trip deal	$659 or less
Good one-way deal	$507 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

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Highest demand for flights based on searches. 14% potential increase in price ($93 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 26, 2025.

Fri 12/55:10 amDUB - IAD

1 stop15h 40mLufthansa

Mon 12/810:20 pmIAD - DUB

Nonstop7h 00mLufthansa

Deal found 6/24

$515

Mon 10/278:30 pmDUB - IAD

1 stop24h 05mBritish Airways

Sun 11/26:15 pmIAD - DUB

1 stop32h 40mBritish Airways

Deal found 6/26

$516

Sat 10/48:05 pmDUB - IAD

2 stops28h 54mScandinavian Airlines

Sat 10/1110:05 pmIAD - DUB

2 stops32h 25mScandinavian Airlines

Deal found 6/26

$519

Tue 9/98:55 amDUB - IAD

1 stop11h 40mDelta

Tue 9/235:10 pmIAD - DUB

2 stops16h 50mDelta

Deal found 6/26

$522

Thu 12/1811:30 amDUB - IAD

1 stop11h 50mIcelandair

Sat 1/37:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 6/24

$523

Mon 9/84:00 pmDUB - IAD

Nonstop7h 55mAer Lingus

Sat 9/135:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 6/26

$524

Sat 12/2012:05 pmDUB - IAD

Nonstop8h 15mUnited Airlines

Sat 1/105:20 pmIAD - DUB

1 stop9h 10mUnited Airlines

Deal found 6/26

$538

Fri 12/199:00 amDUB - IAD

2 stops27h 35mAir Canada

Sun 1/44:35 pmIAD - DUB

1 stop9h 35mAir Canada

Deal found 6/24

$547

Tue 12/2312:05 pmDUB - IAD

Nonstop8h 15mMultiple Airlines

Wed 1/710:05 pmIAD - DUB

1 stop28h 05mMultiple Airlines

Deal found 6/26

$563

Sat 8/2310:45 amDUB - IAD

1 stop33h 35mTAP AIR PORTUGAL

Sat 9/135:00 pmIAD - DUB

1 stop12h 00mTAP AIR PORTUGAL

Deal found 6/25

$592

Fri 9/129:30 amSNN - IAD

1 stop11h 22mUnited Airlines

Wed 9/178:20 amIAD - SNN

1 stop18h 10mUnited Airlines

Deal found 6/25

$616

Sat 10/48:40 amDUB - IAD

1 stop12h 35mSWISS

Sun 10/1210:25 pmIAD - DUB

2 stops32h 45mSWISS

Deal found 6/25

$631

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 26, 2025.

Mon 8/2512:45 pmDUB - IAD

1 stop12h 25mBritish Airways

Sun 8/3110:40 pmIAD - DUB

1 stop10h 35mBritish Airways

Deal found 6/24

$516

Tue 9/98:55 amDUB - IAD

1 stop11h 40mDelta

Tue 9/235:10 pmIAD - DUB

2 stops16h 50mDelta

Deal found 6/24

$518

Sat 8/238:05 pmDUB - IAD

2 stops52h 54mScandinavian Airlines

Sat 9/610:05 pmIAD - DUB

2 stops32h 25mScandinavian Airlines

Deal found 6/26

$526

Tue 8/197:00 pmDUB - IAD

2 stops30h 50mMultiple Airlines

Sun 8/245:45 pmIAD - DUB

2 stops24h 20mMultiple Airlines

Deal found 6/25

$575

Mon 9/19:20 amDUB - IAD

1 stop30h 53mUnited Airlines

Sun 9/77:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 6/24

$583

Sat 8/2310:45 amDUB - IAD

1 stop33h 35mTAP AIR PORTUGAL

Sat 9/135:00 pmIAD - DUB

1 stop12h 00mTAP AIR PORTUGAL

Deal found 6/25

$592

Fri 9/1212:30 pmDUB - IAD

Nonstop8h 05mLufthansa

Wed 9/1710:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Deal found 6/25

$607

Sun 8/312:15 pmDUB - IAD

1 stop14h 55mIcelandair

Wed 11/57:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 6/24

$614

Mon 8/44:00 pmDUB - IAD

Nonstop7h 55mAer Lingus

Tue 8/125:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 6/26

$627

Fri 9/197:40 amSNN - IAD

2 stops18h 25mAir Canada

Sat 9/275:37 pmIAD - SNN

2 stops21h 58mAir Canada

Deal found 6/25

$634

Mon 7/149:30 amDUB - IAD

2 stops15h 06mAmerican Airlines

Tue 7/225:50 pmIAD - DUB

1 stop18h 15mAmerican Airlines

Deal found 6/25

$634

Mon 8/410:00 amDUB - IAD

1 stop11h 43mAir France

Tue 8/199:20 pmIAD - DUB

1 stop12h 40mAir France

Deal found 6/24

$656

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

Thu 7/32:15 pmDUB - IAD

1 stop10h 05mIcelandair

Sun 7/1311:15 pmIAD - DUB

1 stop9h 00mIcelandair

Deal found 6/25

$621

Thu 7/311:45 amDUB - IAD

1 stop10h 26mBritish Airways

Sun 7/1310:40 pmIAD - DUB

1 stop10h 35mBritish Airways

Deal found 6/26

$684

Thu 7/39:20 amDUB - IAD

1 stop30h 54mUnited Airlines

Sun 7/137:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 6/25

$699

Thu 7/39:20 amDUB - IAD

2 stops36h 00mAir Canada

Mon 7/78:18 amIAD - DUB

2 stops18h 27mAir Canada

Deal found 6/26

$715

Thu 7/35:20 pmORK - IAD

1 stop27h 15mKLM

Thu 8/76:30 pmIAD - ORK

1 stop15h 30mKLM

Deal found 6/24

$849

Thu 7/36:00 amORK - IAD

2 stops20h 25mMultiple Airlines

Thu 8/711:15 pmIAD - ORK

2 stops19h 55mMultiple Airlines

Deal found 6/24

$952

Thu 7/37:50 pmDUB - IAD

2 stops29h 09mScandinavian Airlines

Sun 7/1310:05 pmIAD - DUB

2 stops29h 50mScandinavian Airlines

Deal found 6/25

$967

Fri 7/411:45 amDUB - IAD

1 stop11h 27mAmerican Airlines

Thu 7/101:19 pmIAD - DUB

1 stop11h 11mAmerican Airlines

Deal found 6/26

$650

Fri 7/48:45 amDUB - IAD

1 stop12h 30mMultiple Airlines

Mon 7/710:15 pmIAD - DUB

Nonstop7h 05mMultiple Airlines

Deal found 6/26

$717

Fri 7/45:55 amDUB - IAD

2 stops18h 55mDelta

Thu 7/1012:12 pmIAD - DUB

2 stops15h 03mDelta

Deal found 6/26

$742

Fri 7/412:30 pmDUB - IAD

Nonstop8h 00mLufthansa

Thu 7/1010:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Deal found 6/26

$809

Sun 7/612:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Sun 7/68:25 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 6/25

$1,255

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 26, 2025.

Wed 9/174:25 pmSNN - IAD

2 stops50h 50mMultiple Airlines

Deal found 6/25

$409

Wed 9/172:25 pmORK - IAD

2 stops52h 48mMultiple Airlines

Deal found 6/26

$413

Sun 8/245:30 amDUB - IAD

1 stop14h 50mTAP AIR PORTUGAL

Deal found 6/25

$460

Fri 8/2211:50 amDUB - IAD

3 stops37h 58mMultiple Airlines

Deal found 6/24

$467

Sun 8/178:30 pmORK - IAD

2 stops24h 20mAer Lingus

Deal found 6/26

$485

Wed 9/104:35 pmDUB - IAD

Nonstop7h 55mAer Lingus

Deal found 6/24

$494

Wed 7/1611:30 amDUB - IAD

2 stops16h 25mWestJet

Deal found 6/24

$525

Mon 9/812:30 pmDUB - IAD

Nonstop8h 05mLufthansa

Deal found 6/25

$558

Wed 7/231:35 pmDUB - IAD

1 stop27h 10mTurkish Airlines

Deal found 6/24

$601

Tue 7/152:15 pmDUB - IAD

1 stop12h 55mIcelandair

Deal found 6/24

$635

Fri 7/188:15 pmDUB - IAD

1 stop28h 44mScandinavian Airlines

Deal found 6/26

$651

Wed 9/175:05 pmORK - IAD

1 stop27h 30mKLM

Deal found 6/26

$660

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

Fri 12/5

5:10 am-3:50 pm

1 stop15h 40m

Washington, D.C. Dulles Intl

Mon 12/8

10:20 pm-10:20 am

Nonstop7h 00m

$515

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 10/27

8:30 pm-4:35 pm

1 stop24h 05m

Washington, D.C. Dulles Intl

Sun 11/2

6:15 pm-7:55 am

1 stop32h 40m

$516

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 10/4

8:05 pm-7:59 pm

2 stops28h 54m

Washington, D.C. Dulles Intl

Sat 10/11

10:05 pm-11:30 am

2 stops32h 25m

$519

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 9/9

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 9/23

5:10 pm-3:00 pm

2 stops16h 50m

$522

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 12/18

11:30 am-6:20 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Sat 1/3

7:40 pm-10:15 am

1 stop9h 35m

$523

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 9/8

4:00 pm-6:55 pm

Nonstop7h 55m

Washington, D.C. Dulles Intl

Sat 9/13

5:20 pm-5:10 am

Nonstop6h 50m

$524

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 12/20

12:05 pm-3:20 pm

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sat 1/10

5:20 pm-7:30 am

1 stop9h 10m

$538

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 12/19

9:00 am-7:35 am

2 stops27h 35m

Washington, D.C. Dulles Intl

Sun 1/4

4:35 pm-7:10 am

1 stop9h 35m

$547

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 12/23

12:05 pm-3:20 pm

Nonstop8h 15m

Washington, D.C. Dulles Intl

Wed 1/7

10:05 pm-7:10 am

1 stop28h 05m

$563

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 8/23

10:45 am-3:20 pm

1 stop33h 35m

Washington, D.C. Dulles Intl

Sat 9/13

5:00 pm-10:00 am

1 stop12h 00m

$592

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 44 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 $346). 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 18% 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 Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, KLM, and Air France from Ireland to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,963 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

7,963 reviews

Delta

8.0

Very good

7,963 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

1,365 reviews

Delta

8.0

Very good

7,963 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

1,470 reviews

Delta

8.0

Very good

7,963 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!

SWISS

7.5

Good

1,649 reviews

Delta

8.0

Very good

7,963 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

8,838 reviews

Delta

8.0

Very good

7,963 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 TAP AIR PORTUGAL ($460), Aer Lingus ($485), and WestJet ($525).
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 (86%), Lufthansa (85%), American Airlines( 84%).
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 $1,137, our data shows the cheapest flight currently is $450. 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 $346). 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

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Alexandria

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

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Manassas

Dundalk

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Bowie

Hanover

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$614	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$569	Average$756	FlexibilityNo cancel fee	On-time69%

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$409+ 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 9/17. 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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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 26, 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 26, 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 26, 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 26, 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 26, 2025.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, KLM, and Air France from Ireland to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up 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 26, 2025.