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 ($339), Icelandair ($340), and Scandinavian Airlines ($397).

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 evenings 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 $3,232, our data indicates the cheapest price to be $388. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around $370.

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 (82%), Lufthansa (82%), Air Canada (74%).

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 21% 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 59% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $606 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $867.

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 $666. Cheapflights users have found deals in the month of January for as cheap as $294. 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.

$608+ Flights from Washington, D.C. Dulles Intl Airport to Ireland

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Cheap flight deals from Dulles Intl to Ireland

Round-trip from	$483 (Cheapflightsfares)
One-way from	$262 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$868
Good round-trip deal	$590 or less
Good one-way deal	$483 or less

From Washington, D.C. Dulles Intl to Ireland

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

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Highest demand for flights based on searches. 14% potential increase in price ($110 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($19 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 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 June 12, 2025.

Wed 10/810:05 pmIAD - DUB

1 stop15h 10mScandinavian Airlines

Sun 10/1210:15 amDUB - IAD

1 stop14h 44mScandinavian Airlines

Deal found 6/11

$483

Wed 10/229:00 pmIAD - DUB

Nonstop6h 50mAer Lingus

Thu 10/3012:15 pmDUB - IAD

Nonstop8h 20mAer Lingus

Deal found 6/11

$503

Mon 12/85:30 pmIAD - DUB

1 stop17h 40mTAP AIR PORTUGAL

Mon 12/155:05 pmDUB - IAD

1 stop26h 30mTAP AIR PORTUGAL

Deal found 6/11

$526

Sat 8/3010:10 pmIAD - DUB

1 stop30h 35mUnited Airlines

Tue 9/169:50 amDUB - IAD

1 stop28h 48mUnited Airlines

Deal found 6/10

$537

Wed 7/99:45 amIAD - DUB

1 stop17h 00mMultiple Airlines

Wed 7/161:00 pmDUB - IAD

1 stop32h 15mMultiple Airlines

Deal found 6/11

$538

Wed 10/12:25 pmIAD - DUB

1 stop12h 50mAir Canada

Thu 10/99:50 amDUB - IAD

2 stops30h 43mAir Canada

Deal found 6/11

$551

Sun 7/68:30 pmIAD - SNN

1 stop9h 40mMultiple Airlines

Tue 7/221:05 pmSNN - IAD

2 stops14h 50mMultiple Airlines

Deal found 6/10

$555

Sun 7/68:30 amIAD - SNN

1 stop18h 00mUnited Airlines

Tue 7/2212:30 pmSNN - IAD

1 stop32h 50mUnited Airlines

Deal found 6/10

$556

Wed 7/1610:40 pmIAD - DUB

1 stop13h 35mAmerican Airlines

Wed 7/236:30 amDUB - IAD

1 stop14h 25mAmerican Airlines

Deal found 6/12

$562

Tue 7/159:40 amIAD - DUB

2 stops18h 35mDelta

Wed 7/301:15 pmDUB - IAD

1 stop11h 38mDelta

Deal found 6/11

$568

Wed 7/1610:40 pmIAD - SNN

1 stop16h 55mAmerican Airlines

Mon 7/219:15 pmSNN - IAD

2 stops24h 54mAmerican Airlines

Deal found 6/11

$572

Sun 7/208:31 pmIAD - SNN

1 stop9h 39mDelta

Thu 7/311:05 pmSNN - IAD

1 stop11h 46mDelta

Deal found 6/10

$574

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 June 12, 2025.

Wed 10/810:05 pmIAD - DUB

1 stop15h 10mScandinavian Airlines

Sun 10/1210:15 amDUB - IAD

1 stop14h 44mScandinavian Airlines

Deal found 6/11

$483

Mon 9/88:55 amIAD - DUB

2 stops17h 50mUnited Airlines

Thu 9/189:20 amDUB - IAD

2 stops35h 32mUnited Airlines

Deal found 6/12

$492

Tue 10/215:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Tue 10/284:20 pmDUB - IAD

Nonstop8h 10mAer Lingus

Deal found 6/12

$497

Wed 7/309:35 amIAD - DUB

1 stop17h 10mMultiple Airlines

Mon 8/116:40 pmDUB - IAD

1 stop26h 35mMultiple Airlines

Deal found 6/12

$519

Mon 12/85:30 pmIAD - DUB

1 stop17h 40mTAP AIR PORTUGAL

Mon 12/155:05 pmDUB - IAD

1 stop26h 30mTAP AIR PORTUGAL

Deal found 6/11

$526

Sun 7/271:19 pmIAD - DUB

1 stop11h 11mAmerican Airlines

Tue 8/51:30 pmDUB - IAD

1 stop11h 40mAmerican Airlines

Deal found 6/12

$529

Wed 7/98:18 amIAD - DUB

2 stops18h 27mAir Canada

Thu 7/179:20 amDUB - IAD

2 stops31h 09mAir Canada

Deal found 6/12

$538

Wed 8/610:40 pmIAD - DUB

1 stop13h 50mBritish Airways

Thu 8/1412:45 pmDUB - IAD

1 stop12h 25mBritish Airways

Deal found 6/12

$555

Sun 7/68:30 pmIAD - SNN

1 stop9h 40mDelta

Tue 7/221:05 pmSNN - IAD

1 stop11h 46mDelta

Deal found 6/10

$556

Wed 10/2210:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Thu 10/305:00 amDUB - IAD

1 stop15h 50mLufthansa

Deal found 6/11

$586

Fri 8/16:44 pmIAD - DUB

1 stop34h 01mIberia

Wed 8/1312:40 pmDUB - IAD

1 stop27h 21mIberia

Deal found 6/12

$595

Sun 7/68:30 pmIAD - SNN

1 stop9h 40mAir France

Tue 7/221:05 pmSNN - IAD

2 stops14h 50mAir France

Deal found 6/12

$609

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

Tue 6/178:19 amIAD - DUB

1 stop18h 26mAir Canada

Thu 6/269:20 amDUB - IAD

1 stop16h 41mAir Canada

Deal found 6/10

$700

Tue 6/178:18 amIAD - DUB

2 stops18h 57mUnited Airlines

Tue 6/249:20 amDUB - IAD

1 stop16h 41mUnited Airlines

Deal found 6/10

$706

Thu 6/1910:15 pmIAD - DUB

Nonstop7h 05mSWISS

Mon 6/306:40 pmDUB - IAD

1 stop26h 35mSWISS

Deal found 6/11

$828

Fri 6/205:24 pmIAD - DUB

1 stop11h 36mKLM

Sun 6/295:55 amDUB - IAD

1 stop14h 40mKLM

Deal found 6/10

$888

Sat 6/218:25 pmIAD - DUB

Nonstop6h 55mAer Lingus

Tue 6/2412:30 pmDUB - IAD

1 stop12h 40mAer Lingus

Deal found 6/10

$822

Sat 6/215:33 pmIAD - DUB

2 stops23h 42mLufthansa

Wed 7/28:00 pmDUB - IAD

1 stop28h 25mLufthansa

Deal found 6/10

$832

Sat 6/215:33 pmIAD - DUB

2 stops32h 47mAustrian Airlines

Tue 7/19:20 amDUB - IAD

2 stops34h 20mAustrian Airlines

Deal found 6/10

$977

Sun 6/228:30 pmIAD - DUB

1 stop11h 45mIcelandair

Mon 7/142:15 pmDUB - IAD

1 stop12h 55mIcelandair

Deal found 6/12

$639

Sun 6/2211:35 amIAD - DUB

1 stop17h 25mMultiple Airlines

Sat 6/2812:20 pmDUB - IAD

1 stop26h 56mMultiple Airlines

Deal found 6/10

$672

Sun 6/223:31 pmIAD - DUB

1 stop12h 14mDelta

Tue 7/110:00 amDUB - IAD

1 stop11h 44mDelta

Deal found 6/12

$726

Sun 6/225:25 pmIAD - ORK

1 stop25h 05mKLM

Sat 6/285:15 pmORK - IAD

1 stop27h 20mKLM

Deal found 6/10

$1,104

Sun 6/228:18 amIAD - ORK

3 stops34h 41mMultiple Airlines

Sat 6/287:30 amORK - IAD

3 stops18h 34mMultiple Airlines

Deal found 6/10

$1,107

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 June 12, 2025.

Sun 7/279:58 pmIAD - NOC

2 stops53h 47mMultiple Airlines

Deal found 6/11

$262

Mon 7/149:58 pmIAD - SNN

2 stops41h 22mMultiple Airlines

Deal found 6/10

$285

Tue 7/2211:15 pmIAD - KIR

3 stops30h 45mMultiple Airlines

Deal found 6/11

$319

Wed 7/168:30 pmIAD - DUB

3 stops32h 45mMultiple Airlines

Deal found 6/12

$324

Mon 7/1410:20 pmIAD - DUB

1 stop30h 40mTAP AIR PORTUGAL

Deal found 6/12

$339

Mon 6/2311:15 pmIAD - DUB

1 stop9h 00mIcelandair

Deal found 6/11

$340

Sat 9/610:05 pmIAD - DUB

2 stops15h 20mScandinavian Airlines

Deal found 6/12

$397

Sun 7/205:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 6/12

$409

Wed 8/2010:40 pmIAD - SNN

1 stop16h 55mAmerican Airlines

Deal found 6/9

$431

Tue 7/17:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 6/12

$441

Tue 7/18:30 amIAD - SNN

1 stop18h 00mUnited Airlines

Deal found 6/10

$446

Sun 7/208:31 pmIAD - SNN

1 stop9h 39mKLM

Deal found 6/10

$447

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.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 10/8

10:05 pm-6:15 pm

1 stop15h 10m

Dublin

Sun 10/12

10:15 am-7:59 pm

1 stop14h 44m

$483

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 10/22

9:00 pm-8:50 am

Nonstop6h 50m

Dublin

Thu 10/30

4:20 pm-8:30 pm

Nonstop8h 10m

$503

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 12/8

5:30 pm-4:10 pm

1 stop17h 40m

Dublin

Mon 12/15

5:05 pm-2:35 pm

1 stop26h 30m

$526

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 8/30

10:10 pm-9:45 am

1 stop30h 35m

Dublin

Tue 9/16

9:50 am-9:38 am

1 stop28h 48m

$537

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 7/9

9:45 am-7:45 am

1 stop17h 00m

Dublin

Wed 7/16

1:00 pm-4:15 pm

1 stop32h 15m

$538

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 10/1

2:25 pm-8:15 am

1 stop12h 50m

Dublin

Thu 10/9

9:50 am-11:33 am

2 stops30h 43m

$551

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 7/6

8:30 pm-11:10 am

1 stop9h 40m

Shannon

Tue 7/22

1:05 pm-10:55 pm

2 stops14h 50m

$555

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 7/6

8:30 pm-11:10 am

1 stop9h 40m

Shannon

Tue 7/22

1:05 pm-7:51 pm

1 stop11h 46m

$556

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 7/16

10:40 pm-5:15 pm

1 stop13h 35m

Dublin

Wed 7/23

6:30 am-3:55 pm

1 stop14h 25m

$562

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 7/15

9:40 am-9:15 am

2 stops18h 35m

Dublin

Wed 7/30

1:15 pm-7:53 pm

1 stop11h 38m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 58 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 $947). 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 2% 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 Transat 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

7,946 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 Transat

7.8

Good

396 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!

Austrian Airlines

7.6

Good

802 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!

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 ($339), Icelandair ($340), and Scandinavian Airlines ($397).
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 (82%), Lufthansa (82%), Air Canada (74%).
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 $3,232, our data indicates the cheapest price to be $388. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around $370.
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 $947). 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

Dulles Intl to Charles de Gaulle flights

Baltimore to Heathrow flights

Dulles Intl to Leonardo da Vinci/Fiumicino flights

Dulles Intl to Istanbul flights

Dulles Intl to Athens flights

Dulles Intl to Madrid flights

Dulles Intl to Gatwick flights

Reagan-National to Heathrow flights

Dulles Intl to London City flights

Dulles Intl to Lisbon flights

Baltimore to Gatwick flights

Reagan-National to Gatwick flights

Dulles Intl to Dublin flights

Dulles Intl to Frankfurt flights

Dulles Intl to Barcelona-El Prat flights

Dulles Intl to Amsterdam flights

Dulles Intl to Orly flights

Baltimore to Charles de Gaulle flights

Reagan-National to Charles de Gaulle flights

Reagan-National to Madrid flights

Reagan-National to Orly flights

Reagan-National to Leonardo da Vinci/Fiumicino flights

Reagan-National to Istanbul flights

Baltimore to Madrid flights

Baltimore to Leonardo da Vinci/Fiumicino flights

Baltimore to Istanbul flights

Reagan-National to Lisbon flights

Dulles Intl to Vicenza flights

Reagan-National to Athens flights

Baltimore to Stansted flights

Dulles Intl to Keflavik Intl flights

Dulles Intl to Zurich flights

Baltimore to Lisbon flights

Baltimore to Athens flights

Dulles Intl to Munich flights

Baltimore to Keflavik Intl flights

Dulles Intl to Edinburgh flights

Dulles Intl to Stansted flights

Dulles Intl to Bruxelles-National flights

Baltimore to Dublin flights

Reagan-National to Dublin flights

Dulles Intl to Copenhagen flights

Dulles Intl to Sabiha Gokcen flights

Dulles Intl to Vienna flights

Baltimore to Barcelona-El Prat flights

Reagan-National to Barcelona-El Prat flights

Baltimore to Amsterdam flights

Dulles Intl to Luton flights

Baltimore to Luton flights

Top 10 airlines flying from Dulles Intl to Ireland

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$291	Average$414	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$322	Average$494	FlexibilityNo cancel fee	On-time77%
Icelandair	Cheapest$415	Average$686	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$472	Average$696	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$483	Average$804	FlexibilityNo cancel fee	On-time70%
KLM	Cheapest$491	Average$596	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$572	Average$802	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$644	Average$962	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$663	Average$910	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$666	Average$990	FlexibilityNo cancel fee	On-time76%

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$262+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Ireland with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

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 June 12, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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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 June 12, 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 June 12, 2025.

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Best time to book a flight from Dulles Intl to Ireland

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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 June 12, 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 June 12, 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 Transat 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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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 June 12, 2025.