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

To fly one-way, consider booking your trip with PLAY, which is currently one of the cheapest options available, starting at $255. Icelandair flights start at $339 while deals on WorldTicket start at $343 one-way.

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

The most popular route from Washington, D.C. to Ireland is Washington, D.C. Dulles Intl - Dublin. You may also consider Baltimore/Washington - Dublin or Washington, D.C. Reagan-National - Dublin.

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

The cheapest flight price from Washington, D.C. to Ireland is $407. On average you can expect to pay $3,335. The most popular route, (Washington, D.C. Dulles Intl - Dublin), can usually be booked for $415.

What are the most reliable airlines from Washington, D.C. 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. to Ireland on time: SWISS (89%), Lufthansa (89%), Air Canada (86%).

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

When booking a flight from Washington, D.C. 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. to Ireland?

Users have found that flying from Washington, D.C. to Ireland on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save up to 65% on this flight, we recommend booking at least 36 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. to Ireland from $697 1-2 weeks out and tickets from $867 for flights departing within the next 72 hours.

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

Our data shows that January tends to be the cheapest month to fly to Ireland from Washington, D.C.. Users have commonly found prices around $677 for the month, but tickets can be as low as $303. Due to multiple factors, prepare for potentially higher prices in June.

Can I find deals for flights from Washington, D.C. to Ireland that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Ireland?

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

Can I find deals for business class flights from Washington, D.C. to Ireland?

Yes. Cheapflights offers flight deals from Washington, D.C. 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.

$528+ Flights from Washington, D.C. to Ireland - Compare & Save Big

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Cheap flight deals from Washington, D.C. to Ireland

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$374 (Booking.com)
One-way from	$255 (PLAY)
Popular in	June
Cheapest in	January
Average price	$796
Good round-trip deal	$698 or less
Good one-way deal	$489 or less

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

Search Deals

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

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From Washington, D.C. (WAS) to Ireland

Search Deals

One-way flight from Washington, D.C. (WAS) to Ireland

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($152 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ireland.

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Price to beat on a one-way flight from Washington, D.C. (WAS) to Ireland.

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Find flight deals from Washington, D.C. to Ireland

Cheapest flights from Washington, D.C. to Ireland
Explore the most affordable flight options available from Washington, D.C. to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Tue 10/146:50 pmBWI - DUB

1 stop10h 25mPLAY

Wed 10/2211:35 amDUB - BWI

1 stop11h 05mPLAY

Deal found 4/29

$374

Sun 9/218:30 pmBWI - DUB

1 stop11h 45mIcelandair

Mon 10/62:15 pmDUB - BWI

1 stop10h 10mIcelandair

Deal found 4/28

$536

Tue 4/294:45 pmBWI - DUB

1 stop11h 00mKLM

Tue 5/612:00 pmDUB - BWI

1 stop11h 50mKLM

Deal found 4/28

$538

Sun 5/256:23 pmBWI - DUB

1 stop10h 37mDelta

Tue 6/311:00 amDUB - BWI

1 stop14h 43mDelta

Deal found 4/29

$539

Sun 5/49:20 pmBWI - DUB

1 stop11h 55mAmerican Airlines

Tue 5/1311:45 amDUB - BWI

1 stop12h 42mAmerican Airlines

Deal found 4/28

$540

Sun 5/259:20 pmBWI - DUB

1 stop11h 55mBritish Airways

Tue 6/312:45 pmDUB - BWI

1 stop11h 50mBritish Airways

Deal found 4/28

$546

Wed 8/134:16 pmIAD - SNN

2 stops14h 04mAmerican Airlines

Thu 8/217:40 amSNN - IAD

2 stops21h 19mAmerican Airlines

Deal found 4/29

$562

Tue 9/93:59 pmDCA - DUB

1 stop9h 31mAmerican Airlines

Wed 9/241:45 pmDUB - DCA

1 stop13h 15mAmerican Airlines

Deal found 4/29

$568

Tue 5/139:00 pmIAD - DUB

Nonstop6h 50mAer Lingus

Tue 5/2012:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Deal found 4/29

$568

Wed 8/612:40 pmDCA - DUB

1 stop14h 40mJetBlue

Wed 9/1011:30 amDUB - DCA

1 stop16h 29mJetBlue

Deal found 4/29

$569

Tue 7/810:59 amBWI - DUB

2 stops39h 46mUnited Airlines

Tue 7/2210:00 amDUB - BWI

2 stops32h 48mUnited Airlines

Deal found 4/29

$569

Tue 4/298:00 pmDCA - DUB

1 stop32h 45mUnited Airlines

Wed 5/79:50 amDUB - DCA

2 stops31h 11mUnited Airlines

Deal found 4/29

$570

Best flights from Washington, D.C. to Ireland
Discover carefully curated flight deals from Washington, D.C. to Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Tue 10/146:50 pmBWI - DUB

1 stop10h 25mPLAY

Wed 10/2211:35 amDUB - BWI

1 stop11h 05mPLAY

Deal found 4/29

$374

Sun 9/218:30 pmBWI - DUB

1 stop11h 45mIcelandair

Mon 10/62:15 pmDUB - BWI

1 stop10h 10mIcelandair

Deal found 4/28

$536

Sun 5/256:23 pmBWI - DUB

1 stop10h 37mDelta

Tue 6/311:00 amDUB - BWI

1 stop14h 43mDelta

Deal found 4/29

$539

Wed 9/179:20 pmBWI - DUB

1 stop15h 10mAmerican Airlines

Thu 9/259:30 amDUB - BWI

2 stops13h 09mAmerican Airlines

Deal found 4/28

$544

Sun 5/259:20 pmBWI - DUB

1 stop11h 55mBritish Airways

Tue 6/312:45 pmDUB - BWI

1 stop11h 50mBritish Airways

Deal found 4/28

$546

Tue 5/274:47 pmBWI - DUB

1 stop10h 58mKLM

Tue 6/310:00 amDUB - BWI

1 stop11h 23mKLM

Deal found 4/28

$547

Sun 5/111:52 pmBWI - DUB

1 stop13h 53mAir France

Tue 5/2011:00 amDUB - BWI

1 stop14h 43mAir France

Deal found 4/29

$567

Tue 5/139:00 pmIAD - DUB

Nonstop6h 50mAer Lingus

Tue 5/2012:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Deal found 4/29

$568

Mon 9/156:35 amIAD - DUB

2 stops20h 10mUnited Airlines

Wed 9/249:50 amDUB - IAD

2 stops31h 05mUnited Airlines

Deal found 4/28

$569

Wed 7/168:45 pmIAD - DUB

1 stop30h 05mMultiple Airlines

Wed 7/239:50 amDUB - IAD

2 stops16h 11mMultiple Airlines

Deal found 4/29

$570

Fri 10/1010:05 pmIAD - DUB

2 stops16h 10mScandinavian Airlines

Tue 10/2112:40 pmDUB - IAD

1 stop12h 19mScandinavian Airlines

Deal found 4/27

$574

Tue 5/2712:55 pmDCA - DUB

2 stops14h 20mAir Canada

Tue 6/39:20 amDUB - DCA

1 stop11h 29mAir Canada

Deal found 4/28

$577

Last-minute flights from Washington, D.C. to Ireland
Discover last-minute flight deals from Washington, D.C. to Ireland. Data last updated April 30, 2025 and is based on user searches.

Tue 4/294:45 pmBWI - DUB

1 stop11h 00mKLM

Tue 5/612:00 pmDUB - BWI

1 stop11h 50mKLM

Deal found 4/28

$538

Tue 4/298:00 pmDCA - DUB

1 stop32h 45mUnited Airlines

Wed 5/79:50 amDUB - DCA

2 stops31h 11mUnited Airlines

Deal found 4/29

$570

Sun 5/43:43 pmBWI - DUB

1 stop11h 12mKLM

Tue 5/1310:00 amDUB - BWI

1 stop11h 23mKLM

Deal found 4/28

$538

Sun 5/49:20 pmBWI - DUB

1 stop11h 55mAmerican Airlines

Tue 5/1311:45 amDUB - BWI

1 stop12h 42mAmerican Airlines

Deal found 4/28

$540

Sun 5/47:00 pmIAD - DUB

Nonstop7h 10mMultiple Airlines

Tue 5/139:50 amDUB - IAD

1 stop28h 49mMultiple Airlines

Deal found 4/28

$578

Sun 5/49:20 pmBWI - DUB

1 stop11h 55mBritish Airways

Thu 5/88:15 pmDUB - BWI

2 stops25h 22mBritish Airways

Deal found 4/28

$585

Sun 5/46:55 pmDCA - DUB

1 stop10h 50mDelta

Fri 5/1610:00 amDUB - DCA

1 stop12h 59mDelta

Deal found 4/29

$597

Mon 5/58:25 pmIAD - DUB

Nonstop6h 50mAer Lingus

Fri 5/164:00 pmDUB - IAD

Nonstop7h 55mAer Lingus

Deal found 4/29

$568

Mon 5/52:25 pmIAD - DUB

1 stop12h 50mAir Canada

Tue 5/139:50 amDUB - IAD

1 stop28h 49mAir Canada

Deal found 4/28

$582

Mon 5/57:25 pmIAD - DUB

1 stop11h 25mBritish Airways

Wed 5/148:30 amDUB - IAD

1 stop12h 15mBritish Airways

Deal found 4/27

$594

Tue 5/68:30 pmBWI - DUB

1 stop9h 35mIcelandair

Mon 5/122:15 pmDUB - BWI

1 stop10h 10mIcelandair

Deal found 4/29

$567

Tue 5/68:30 pmIAD - DUB

1 stop9h 35mIcelandair

Mon 5/122:15 pmDUB - IAD

1 stop10h 05mIcelandair

Deal found 4/28

$576

One-way flights from Washington, D.C. to Ireland
Search for one-way flight options from Washington, D.C. to Ireland. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Mon 7/286:50 pmBWI - DUB

1 stop10h 15mPLAY

Deal found 4/28

$255

Tue 8/56:50 pmBWI - DUB

2 stops20h 45mMultiple Airlines

Deal found 4/28

$289

Thu 8/78:30 pmBWI - DUB

1 stop9h 35mIcelandair

Deal found 4/29

$339

Sun 10/267:05 pmBWI - DUB

1 stop10h 35mWorldTicket

Deal found 4/28

$343

Sun 6/16:00 amDCA - SNN

3 stops28h 10mMultiple Airlines

Deal found 4/28

$391

Sat 7/56:00 amBWI - DUB

2 stops22h 05mWestJet

Deal found 4/28

$424

Mon 5/268:30 pmBWI - SNN

3 stops42h 50mMultiple Airlines

Deal found 4/29

$426

Sat 5/104:20 pmIAD - DUB

3 stops48h 45mMultiple Airlines

Deal found 4/29

$435

Sun 5/48:30 pmIAD - DUB

1 stop11h 45mIcelandair

Deal found 4/29

$437

Thu 5/2912:26 pmDCA - DUB

2 stops16h 34mWestJet

Deal found 4/29

$440

Sun 6/89:40 amIAD - DUB

2 stops19h 20mWestJet

Deal found 4/29

$440

Tue 5/204:15 pmDCA - DUB

1 stop11h 45mJetBlue

Deal found 4/28

$443

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Tue 10/14

6:50 pm-10:15 am

1 stop10h 25m

Dublin

Wed 10/22

11:35 am-5:40 pm

1 stop11h 05m

$374

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sun 9/21

8:30 pm-1:15 pm

1 stop11h 45m

Dublin

Mon 10/6

2:15 pm-7:25 pm

1 stop10h 10m

$536

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sun 5/25

6:23 pm-10:00 am

1 stop10h 37m

Dublin

Tue 6/3

11:00 am-8:43 pm

1 stop14h 43m

$539

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Wed 9/17

9:20 pm-5:30 pm

1 stop15h 10m

Dublin

Thu 9/25

9:30 am-5:39 pm

2 stops13h 09m

$544

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sun 5/25

9:20 pm-2:15 pm

1 stop11h 55m

Dublin

Tue 6/3

12:45 pm-7:35 pm

1 stop11h 50m

$546

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Tue 9/23

2:10 pm-9:15 am

2 stops14h 05m

Dublin

Tue 9/30

3:00 pm-9:43 pm

1 stop11h 43m

$551

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 5/13

9:00 pm-8:50 am

Nonstop6h 50m

Dublin

Tue 5/20

12:50 pm-3:50 pm

Nonstop8h 00m

$568

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 9/15

6:35 am-7:45 am

2 stops20h 10m

Dublin

Wed 9/24

9:50 am-11:55 am

2 stops31h 05m

$569

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Tue 7/8

10:59 am-7:45 am

2 stops39h 46m

Dublin

Tue 7/22

10:00 am-1:48 pm

2 stops32h 48m

$569

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 5/11

5:00 pm-9:15 am

1 stop11h 15m

Dublin

Tue 5/20

11:00 am-6:22 pm

1 stop12h 22m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 60 results

...

Best time to book a flight from Washington, D.C. to Ireland

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

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Ireland (average of $509). Flying from Washington, D.C. to Ireland in June is currently the most expensive (average of $981). 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 WAS to IE?

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Ireland in the morning. If you’re flexible enough to do this you can expect to save up to 6% on your trip compared to booking a flight at noon.

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

Travelers seeking maximum savings on their Washington, D.C. 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.

Weekly flight availability from Washington, D.C. to Ireland

The most flights from WAS 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 through reviews of airlines operating flights from Washington, D.C. to Ireland, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,929 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

7,929 reviews

Delta

8.0

Very good

7,929 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

1,334 reviews

Delta

8.0

Very good

7,929 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.

Finnair

7.6

Good

1,275 reviews

Delta

8.0

Very good

7,929 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.

Austrian Airlines

7.6

Good

780 reviews

Delta

8.0

Very good

7,929 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

1,588 reviews

Delta

8.0

Very good

7,929 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. to Ireland one-way?
To fly one-way, consider booking your trip with PLAY, which is currently one of the cheapest options available, starting at $255. Icelandair flights start at $339 while deals on WorldTicket start at $343 one-way.
What are the most popular routes from Washington, D.C. to Ireland?
The most popular route from Washington, D.C. to Ireland is Washington, D.C. Dulles Intl - Dublin. You may also consider Baltimore/Washington - Dublin or Washington, D.C. Reagan-National - Dublin.
What are the most reliable airlines from Washington, D.C. 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. to Ireland on time: SWISS (89%), Lufthansa (89%), Air Canada (86%).
What are the cheapest flights from Washington, D.C. to Ireland?
The cheapest flight price from Washington, D.C. to Ireland is $407. On average you can expect to pay $3,335. The most popular route, (Washington, D.C. Dulles Intl - Dublin), can usually be booked for $415.
Can I find deals for flights from Washington, D.C. to Ireland that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Ireland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ireland.
Can I find deals for business class flights from Washington, D.C. to Ireland?
Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Ireland?
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Ireland (average of $509). Flying from Washington, D.C. to Ireland in June is currently the most expensive (average of $981). 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 Washington, D.C. to Ireland

Dulles Intl to Heathrow flights

Dulles Intl to Charles de Gaulle flights

Dulles Intl to Leonardo da Vinci/Fiumicino flights

Dulles Intl to Istanbul flights

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Reagan-National to Heathrow flights

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Dulles Intl to Barcelona-El Prat flights

Dulles Intl to Orly flights

Reagan-National to Gatwick flights

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Reagan-National to Leonardo da Vinci/Fiumicino flights

Dulles Intl to Dublin flights

Dulles Intl to Frankfurt flights

Reagan-National to Istanbul flights

Reagan-National to Orly flights

Dulles Intl to Amsterdam flights

Reagan-National to Madrid flights

Reagan-National to Athens flights

Dulles Intl to Bruxelles-National flights

Dulles Intl to Edinburgh flights

Reagan-National to Lisbon flights

Dulles Intl to Zurich flights

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Reagan-National to Dublin flights

Dulles Intl to Copenhagen flights

Dulles Intl to Munich flights

Dulles Intl to Linate flights

Reagan-National to Barcelona-El Prat flights

Dulles Intl to Vienna flights

Reagan-National to Malpensa flights

Dulles Intl to Stansted flights

Dulles Intl to Florence flights

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Dulles Intl to Frederic Chopin flights

Dulles Intl to Geneva flights

Dulles Intl to Oslo Gardermoen flights

Reagan-National to Amsterdam flights

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Reagan-National to Edinburgh flights

Reagan-National to Linate flights

Reagan-National to Frankfurt flights

Dulles Intl to Naples flights

Reagan-National to Vicenza flights

Washington, D.C. to Ireland flights

Baltimore to Dublin flights

Baltimore to Shannon flights

Dulles Intl to Shannon flights

Reagan-National to Shannon flights

Dulles Intl to Cork flights

Reagan-National to Cork flights

Baltimore to Cork flights

Dulles Intl to Milltown (Kerry) flights

Dulles Intl to Knock flights

Baltimore to Donegal flights

Baltimore to Milltown (Kerry) flights

Reagan-National to Donegal flights

Dulles Intl to Donegal flights

Top 10 airlines flying from Washington, D.C. to Ireland

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$283	Average$415	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$303	Average$494	FlexibilityNo cancel fee	On-time77%
Icelandair	Cheapest$423	Average$716	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$457	Average$797	FlexibilityNo cancel fee	On-time70%
Aer Lingus	Cheapest$476	Average$752	FlexibilityNo cancel fee	On-timeN/A
TAP AIR PORTUGAL	Cheapest$514	Average$673	FlexibilityNo cancel fee	On-timeN/A
Delta	Cheapest$548	Average$1,006	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$558	Average$938	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$571	Average$907	FlexibilityNo cancel fee	On-time71%
JetBlue	Cheapest$577	Average$725	FlexibilityNo cancel fee	On-time62%

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$255+ Cheap flights from Washington, D.C. (WAS) 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Ireland with Cheapflights

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Cheap flight deals from Washington, D.C. to Ireland

Keep the following information in mind while searching for Washington, D.C. to Ireland flight deals. Data was last updated April 30, 2025.

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Find flight deals from Washington, D.C. to Ireland

Cheapest flights from Washington, D.C. to IrelandExplore the most affordable flight options available from Washington, D.C. to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from Washington, D.C. to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

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

Best time to book a flight from Washington, D.C. to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Washington, D.C. with our price prediction graph.

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

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

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

Find hourly flight availability from Washington, D.C. 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 30, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Ireland. Price data was last updated on September 8, 2024.

Weekly flight availability from Washington, D.C. to Ireland

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 through reviews of airlines operating flights from Washington, D.C. to Ireland, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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. to Ireland one-way?

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

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

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

Can I find deals for flights from Washington, D.C. to Ireland that include hotel bookings?

How can I find direct flights from Washington, D.C. to Ireland?

Can I find deals for business class flights from Washington, D.C. to Ireland?

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

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Alternative routes for Washington, D.C. to Ireland

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Top 10 airlines flying from Washington, D.C. to Ireland

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Cheapest flights from Washington, D.C. to Ireland
Explore the most affordable flight options available from Washington, D.C. to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.