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

The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Ireland are TAP AIR PORTUGAL ($363), Scandinavian Airlines ($400), and Aer Lingus ($421).

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

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

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

The most popular flight routes from Washington, D.C. Dulles Intl Airport to Ireland are Washington, D.C. Dulles Intl - Dublin, Washington, D.C. Dulles Intl - Shannon and Washington, D.C. Dulles Intl - Cork.

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

Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Ireland? While on average our users pay $3,140, our data indicates the cheapest price to be $459. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around $415.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Ireland on time: SWISS (88%), Lufthansa (88%), American Airlines (83%).

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

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

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

Leaving on a Monday 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 19% on the overall cost on flights from Washington, D.C. Dulles Intl Airport to Ireland.

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

To save on the cost of your flight from Washington, D.C. Dulles Intl Airport to Ireland, book at least 36 days before your planned departure. Booking around this time can save you about 66% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $698 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $865.

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

January can be a great time to fly to Ireland from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $681. Cheapflights users have found deals in the month of January for as cheap as $303. The most expensive prices can be found in the month of June.

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

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

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

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

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

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

$586+ Flights from Washington, D.C. Dulles Intl Airport to Ireland

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Cheap flight deals from Dulles Intl to Ireland

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$538 (United Airlines)
One-way from	$280 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$796
Good round-trip deal	$715 or less
Good one-way deal	$528 or less

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

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

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From Washington, D.C. Dulles Intl to Ireland

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

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($165 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($28 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 Washington, D.C. Dulles Intl to Ireland.

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

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Find flight deals from Dulles Intl to Ireland

Cheapest flights from Dulles Intl to Ireland
Explore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

Mon 6/210:40 pmIAD - ORK

1 stop11h 35mAmerican Airlines

Tue 6/1711:45 amORK - IAD

1 stop13h 25mAmerican Airlines

Deal found 4/14

$455

Tue 8/2610:05 pmIAD - DUB

2 stops16h 20mScandinavian Airlines

Sun 8/317:15 pmDUB - IAD

2 stops29h 44mScandinavian Airlines

Deal found 4/15

$565

Tue 5/136:22 amIAD - DUB

2 stops20h 53mUnited Airlines

Tue 5/209:50 amDUB - IAD

2 stops33h 16mUnited Airlines

Deal found 4/15

$566

Mon 5/58:45 pmIAD - DUB

1 stop16h 05mMultiple Airlines

Tue 5/139:50 amDUB - IAD

2 stops16h 18mMultiple Airlines

Deal found 4/15

$568

Thu 6/1210:40 pmIAD - DUB

1 stop10h 55mBritish Airways

Wed 6/258:30 amDUB - IAD

1 stop16h 40mBritish Airways

Deal found 4/14

$569

Tue 8/52:25 pmIAD - DUB

1 stop12h 50mAir Canada

Wed 8/139:50 amDUB - IAD

2 stops16h 11mAir Canada

Deal found 4/14

$574

Mon 8/113:39 pmIAD - SNN

1 stop10h 51mUnited Airlines

Fri 8/229:30 amSNN - IAD

1 stop11h 22mUnited Airlines

Deal found 4/15

$575

Sun 6/1510:40 pmIAD - DUB

1 stop13h 35mAmerican Airlines

Tue 7/11:30 pmDUB - IAD

1 stop11h 40mAmerican Airlines

Deal found 4/14

$580

Thu 5/810:20 pmIAD - DUB

1 stop20h 45mTAP AIR PORTUGAL

Thu 5/155:30 amDUB - IAD

1 stop14h 50mTAP AIR PORTUGAL

Deal found 4/14

$586

Wed 5/78:45 pmIAD - DUB

1 stop34h 25mSWISS

Mon 5/121:00 pmDUB - IAD

1 stop32h 15mSWISS

Deal found 4/13

$600

Sun 5/48:30 pmIAD - DUB

1 stop11h 45mIcelandair

Thu 5/152:15 pmDUB - IAD

1 stop10h 05mIcelandair

Deal found 4/14

$618

Tue 4/295:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Tue 5/64:35 pmDUB - IAD

Nonstop7h 55mAer Lingus

Deal found 4/15

$621

Best flights from Dulles Intl to Ireland
Discover carefully curated flight deals from Dulles Intl to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2025.

Thu 8/1410:15 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Thu 8/219:20 amDUB - IAD

2 stops35h 44mUnited Airlines

Deal found 4/15

$538

Mon 10/610:05 pmIAD - DUB

2 stops31h 50mScandinavian Airlines

Fri 10/1712:20 pmDUB - IAD

2 stops36h 39mScandinavian Airlines

Deal found 4/14

$565

Mon 5/57:00 pmIAD - DUB

Nonstop7h 10mMultiple Airlines

Tue 5/139:50 amDUB - IAD

1 stop28h 49mMultiple Airlines

Deal found 4/15

$568

Thu 6/1210:40 pmIAD - DUB

1 stop10h 55mBritish Airways

Wed 6/258:30 amDUB - IAD

1 stop16h 40mBritish Airways

Deal found 4/14

$569

Tue 8/59:45 amIAD - DUB

2 stops17h 30mAir Canada

Wed 8/139:50 amDUB - IAD

2 stops16h 11mAir Canada

Deal found 4/14

$574

Thu 5/810:20 pmIAD - DUB

1 stop20h 45mTAP AIR PORTUGAL

Thu 5/155:30 amDUB - IAD

1 stop14h 50mTAP AIR PORTUGAL

Deal found 4/14

$586

Fri 6/610:40 pmIAD - DUB

1 stop13h 35mAmerican Airlines

Fri 6/2012:30 pmDUB - IAD

1 stop12h 40mAmerican Airlines

Deal found 4/14

$588

Wed 5/78:45 pmIAD - DUB

1 stop34h 25mSWISS

Mon 5/121:00 pmDUB - IAD

1 stop32h 15mSWISS

Deal found 4/13

$600

Wed 5/148:30 pmIAD - DUB

1 stop11h 45mIcelandair

Wed 5/2112:15 pmDUB - IAD

1 stop12h 05mIcelandair

Deal found 4/15

$601

Tue 4/299:00 pmIAD - DUB

Nonstop6h 50mAer Lingus

Tue 5/64:35 pmDUB - IAD

Nonstop7h 55mAer Lingus

Deal found 4/14

$621

Tue 8/53:25 pmIAD - DUB

1 stop11h 45mLufthansa

Wed 9/1010:40 amDUB - IAD

1 stop13h 45mLufthansa

Deal found 4/14

$623

Wed 5/288:30 pmIAD - SNN

1 stop9h 40mKLM

Wed 6/111:05 pmSNN - IAD

1 stop11h 45mKLM

Deal found 4/14

$645

Last-minute flights from Dulles Intl to Ireland
Discover last-minute flight deals from Dulles Intl to Ireland. Data last updated April 15, 2025 and is based on user searches.

Sun 4/2010:40 pmIAD - DUB

1 stop10h 35mBritish Airways

Mon 4/288:55 pmDUB - IAD

1 stop23h 55mBritish Airways

Deal found 4/14

$667

Sun 4/2012:11 pmIAD - DUB

1 stop16h 04mDelta

Mon 4/288:55 amDUB - IAD

2 stops19h 12mDelta

Deal found 4/14

$719

Sun 4/2010:05 pmIAD - DUB

Nonstop7h 15mLufthansa

Mon 4/2810:40 amDUB - IAD

1 stop13h 45mLufthansa

Deal found 4/14

$736

Mon 4/215:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Tue 4/2912:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Deal found 4/14

$610

Mon 4/2112:29 pmIAD - DUB

1 stop15h 16mAir France

Tue 4/2910:00 amDUB - IAD

1 stop13h 12mAir France

Deal found 4/14

$637

Mon 4/217:00 pmIAD - DUB

Nonstop7h 10mMultiple Airlines

Mon 4/281:00 pmDUB - IAD

1 stop32h 15mMultiple Airlines

Deal found 4/13

$640

Tue 4/2210:05 pmIAD - DUB

1 stop15h 10mScandinavian Airlines

Tue 4/2912:40 pmDUB - IAD

1 stop12h 19mScandinavian Airlines

Deal found 4/14

$602

Tue 4/227:00 pmIAD - DUB

Nonstop7h 10mUnited Airlines

Tue 4/299:50 amDUB - IAD

1 stop11h 18mUnited Airlines

Deal found 4/14

$626

Wed 4/238:45 pmIAD - DUB

1 stop30h 05mSWISS

Mon 4/286:40 pmDUB - IAD

1 stop26h 35mSWISS

Deal found 4/14

$659

Wed 4/235:20 pmIAD - SNN

2 stops13h 00mAer Lingus

Wed 5/79:15 pmSNN - IAD

2 stops23h 35mAer Lingus

Deal found 4/15

$866

Wed 4/2310:40 pmIAD - SNN

1 stop16h 55mBritish Airways

Wed 5/77:40 amSNN - IAD

1 stop13h 05mBritish Airways

Deal found 4/15

$991

Thu 4/241:30 pmIAD - DUB

1 stop21h 25mTurkish Airlines

Fri 5/24:55 pmDUB - IAD

1 stop23h 50mTurkish Airlines

Deal found 4/14

$690

One-way flights from Dulles Intl to Ireland
Search for one-way flight options from Dulles Intl to Ireland. Find affordable one-way fares based on user searches. Data last updated April 15, 2025.

Mon 5/2611:35 amIAD - ORK

2 stops40h 05mMultiple Airlines

Deal found 4/14

$280

Sun 7/2010:20 pmIAD - DUB

1 stop14h 45mTAP AIR PORTUGAL

Deal found 4/14

$363

Wed 8/2711:15 pmIAD - DUB

2 stops15h 25mMultiple Airlines

Deal found 4/14

$364

Mon 9/1510:05 pmIAD - DUB

1 stop15h 10mScandinavian Airlines

Deal found 4/14

$400

Mon 6/308:25 pmIAD - ORK

2 stops39h 30mAer Lingus

Deal found 4/14

$421

Sun 10/127:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 4/14

$426

Sun 5/113:25 pmIAD - DUB

1 stop15h 05mLufthansa

Deal found 4/14

$436

Sun 5/48:30 pmIAD - DUB

1 stop11h 45mIcelandair

Deal found 4/14

$437

Sun 5/49:45 amIAD - DUB

2 stops41h 30mAir Canada

Deal found 4/14

$441

Mon 5/198:30 pmIAD - SNN

2 stops20h 35mMultiple Airlines

Deal found 4/14

$448

Sat 5/247:30 amIAD - DUB

2 stops21h 30mWestJet

Deal found 4/13

$458

Sun 5/45:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 4/14

$460

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Mon 6/2

10:40 pm-3:15 pm

1 stop11h 35m

Cork

Tue 6/17

11:45 am-8:10 pm

1 stop13h 25m

$455

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 8/26

10:05 pm-7:25 pm

2 stops16h 20m

Dublin

Mon 9/1

9:10 pm-7:59 pm

2 stops27h 49m

$565

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 5/13

6:22 am-8:15 am

2 stops20h 53m

Dublin

Tue 5/20

9:50 am-2:06 pm

2 stops33h 16m

$566

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 5/5

8:45 pm-5:50 pm

1 stop16h 05m

Dublin

Tue 5/13

9:50 am-9:08 pm

2 stops16h 18m

$568

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 6/12

10:40 pm-2:35 pm

1 stop10h 55m

Dublin

Wed 6/25

8:30 am-8:10 pm

1 stop16h 40m

$569

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 8/5

2:25 pm-8:15 am

1 stop12h 50m

Dublin

Wed 9/10

9:50 am-9:01 pm

2 stops16h 11m

$574

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Mon 8/11

3:39 pm-7:30 am

1 stop10h 51m

Shannon

Fri 8/22

9:30 am-3:52 pm

1 stop11h 22m

$575

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 6/15

10:40 pm-5:15 pm

1 stop13h 35m

Dublin

Tue 7/1

1:30 pm-8:10 pm

1 stop11h 40m

$580

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 5/8

10:20 pm-12:05 am

1 stop20h 45m

Dublin

Thu 5/15

5:30 am-3:20 pm

1 stop14h 50m

$586

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 5/7

8:45 pm-12:10 pm

1 stop34h 25m

Dublin

Mon 5/12

1:00 pm-4:15 pm

1 stop32h 15m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 54 results

...

Best time to book a flight from Dulles Intl to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Ireland

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ireland (average of $509). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $1,006). 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 IAD to IE?

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Ireland in the morning. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight at noon.

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

The most flights from IAD to IE0 are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Ireland by month

In terms of precipitation, rainfall in Ireland ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Ireland when rainfall is around 1.9 in.

Temperature in Ireland by month

If weather is an important factor for your trip to Ireland, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Ireland

Read reviews from past customers who have flown Delta, KLM and Air France from Washington, D.C. to Ireland. 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

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,918 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,323 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,578 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,658 reviews

Delta

8.0

Very good

7,918 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Ireland one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Ireland are TAP AIR PORTUGAL ($363), Scandinavian Airlines ($400), and Aer Lingus ($421).
What are the most popular routes from Washington, D.C. Dulles Intl Airport to Ireland?
The most popular flight routes from Washington, D.C. Dulles Intl Airport to Ireland are Washington, D.C. Dulles Intl - Dublin, Washington, D.C. Dulles Intl - Shannon and Washington, D.C. Dulles Intl - Cork.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Ireland?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Ireland on time: SWISS (88%), Lufthansa (88%), American Airlines (83%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Ireland?
Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Ireland? While on average our users pay $3,140, our data indicates the cheapest price to be $459. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around $415.
Can I find deals for flights from Dulles Intl to Ireland that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Ireland.
Can I find deals for business class flights from Dulles Intl to Ireland?
Yes. Cheapflights offers flight deals from Dulles Intl to Ireland 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 Washington, D.C. Dulles Intl Airport to Ireland?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ireland (average of $509). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $1,006). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Ireland

Dulles Intl to Heathrow flights

Baltimore to Heathrow flights

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Baltimore to Charles de Gaulle flights

Dulles Intl to Frankfurt flights

Reagan-National to Charles de Gaulle flights

Reagan-National to Leonardo da Vinci/Fiumicino flights

Baltimore to Leonardo da Vinci/Fiumicino flights

Baltimore to Stansted flights

Dulles Intl to Amsterdam flights

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Reagan-National to Athens flights

Reagan-National to Lisbon flights

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Dulles Intl to Bruxelles-National flights

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Baltimore to Dublin flights

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Dulles Intl to Malpensa flights

Dulles Intl to Copenhagen flights

Baltimore to Keflavik Intl flights

Reagan-National to Istanbul flights

Reagan-National to Barcelona-El Prat flights

Dulles Intl to Linate flights

Baltimore to Barcelona-El Prat flights

Reagan-National to Malpensa flights

Baltimore to Istanbul flights

Dulles Intl to Florence flights

Baltimore to Malpensa flights

Baltimore to Frankfurt flights

Top 10 airlines flying from Dulles Intl to Ireland

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$291	Average$425	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$303	Average$494	FlexibilityNo cancel fee	On-time77%
Icelandair	Cheapest$423	Average$739	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$477	Average$721	FlexibilityNo cancel fee	On-timeN/A
TAP AIR PORTUGAL	Cheapest$514	Average$673	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$534	Average$948	FlexibilityNo cancel fee	On-time70%
KLM	Cheapest$643	Average$665	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$644	Average$989	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$663	Average$911	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$666	Average$1,031	FlexibilityNo cancel fee	On-time76%

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$280+ Cheap flights from Dulles Intl (IAD) to Ireland

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 5/26. 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 Dulles Intl to Ireland

Keep the following information in mind while searching for Dulles Intl to Ireland flight deals. Data was last updated April 15, 2025.

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Find flight deals from Dulles Intl to Ireland

Cheapest flights from Dulles Intl to IrelandExplore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

Explore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

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

Best time to book a flight from Dulles Intl to Ireland

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Dulles Intl to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

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

Explore weekly flight availability from Dulles Intl to Ireland. 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 15, 2025.

Rainfall in Ireland by month

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

Temperature in Ireland by month

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

Reviews of airlines servicing Ireland

Read reviews from past customers who have flown Delta, KLM and Air France from Washington, D.C. to Ireland. 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 Dulles Intl to Ireland. 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 Washington, D.C. Dulles Intl Airport to Ireland one-way?

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

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

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

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

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

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

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

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Alternative routes for Dulles Intl to Ireland

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Top 10 airlines flying from Dulles Intl to Ireland

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Cheapest flights from Dulles Intl to Ireland
Explore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.