What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Dublin?

Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $481.

Which airline has the best punctuality record on Washington, D.C. to Dublin flights?

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 16% of flights being delayed.

How often are flights from Washington, D.C. to Dublin delayed?

About 20% of weekly flights between Washington, D.C. and Dublin have experienced delays in the past year, with the average delay time being 166 minutes.

What is the most punctual flight time for Washington, D.C. to Dublin flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Dublin?

Reykjavik (KEF) – chosen by Cheapflights users on 67% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Dublin on Cheapflights.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Dublin?

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 44m.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Dublin?

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 9h 35m.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

How long is the flight from Washington, D.C. Dulles Intl Airport to Dublin?

Departing from Washington, D.C. Dulles Intl Airport to Dublin will take you 22h 30m. Airlines will cover a distance of 3393 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Dublin round-trip?

Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Dublin round-trip from $322. Other airlines that can offer you cheap pricing are Icelandair, from $371, and TAP AIR PORTUGAL, from $427. PLAY is 54% cheaper than the average price of flights available within the next 90 days to this destination.

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

The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $248. However, be on the lookout for offers from Aer Lingus and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Dublin for a low price.

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

The most flights from IAD to DUB are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

In terms of precipitation, rainfall in Dublin 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 Dublin when rainfall is around 1.9 in.

If weather is an important factor for your trip to Dublin, 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).

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

On average you can expect to pay $1,074 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $375 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $362.

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

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 Dublin on time: Aer Lingus (92%), Qatar Airways (90%), British Airways (88%).

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

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

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Dublin flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Washington, D.C. Dulles Intl Airport-Dublin flight deals on Cheapflights vs. Gotogate >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Dublin flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Dublin flights, Cheapflights users trust Gotogate the most. Gotogate has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Dublin from Washington, D.C. Dulles Intl?

Most people fly into Dublin (DUB) if they book a flight to Dublin from Washington, D.C. Dulles Intl. On average, Dublin has 12 inbound flights from Washington, D.C. Dulles Intl per day from 9 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

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

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

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

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

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

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

$224+ Flights from Washington, D.C. Dulles Intl Airport to Dublin

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or February, booked 58 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to Dublin

Cheapest flights from Dulles Intl to Dublin
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

Mon 12/295:31 pmIAD - DUB

1 stop33h 39mUnited Airlines

Fri 1/99:00 amDUB - IAD

2 stops31h 49mUnited Airlines

Deal found 12/1

$513

Sun 12/78:20 amIAD - DUB

1 stop18h 50mLufthansa

Tue 12/1612:05 pmDUB - IAD

Nonstop8h 15mLufthansa

Deal found 11/30

$531

Mon 12/89:00 pmIAD - DUB

Nonstop6h 50mAer Lingus

Mon 12/154:20 pmDUB - IAD

Nonstop8h 10mAer Lingus

Deal found 12/1

$533

Sat 12/1310:20 pmIAD - DUB

Nonstop7h 00mMultiple Airlines

Mon 12/226:35 pmDUB - IAD

1 stop27h 05mMultiple Airlines

Deal found 12/1

$537

Thu 12/115:05 pmIAD - DUB

Nonstop6h 50mAer Lingus

Wed 12/174:20 pmDUB - IAD

Nonstop8h 10mAer Lingus

Deal found 12/2

$538

Thu 12/118:20 amIAD - DUB

1 stop18h 50mUnited Airlines

Wed 12/1712:05 pmDUB - IAD

Nonstop8h 15mUnited Airlines

Deal found 12/1

$542

Mon 12/83:38 pmIAD - DUB

1 stop11h 07mDelta

Mon 12/158:50 amDUB - IAD

2 stops15h 29mDelta

Deal found 12/1

$550

Best flights from Dulles Intl to Dublin
Discover carefully curated flight deals from Dulles Intl to Dublin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 3, 2025.

Sat 1/178:30 pmIAD - DUB

2 stops34h 15mScandinavian Airlines

Sat 1/2410:10 amDUB - IAD

1 stop13h 40mScandinavian Airlines

Deal found 12/2

$505

Tue 4/216:15 amIAD - DUB

1 stop22h 30mUnited Airlines

Sun 4/269:50 amDUB - IAD

2 stops31h 00mUnited Airlines

Deal found 12/1

$529

Wed 1/2810:08 amIAD - DUB

2 stops17h 37mDelta

Sun 2/18:50 amDUB - IAD

2 stops15h 19mDelta

Deal found 11/30

$555

Thu 1/2212:23 pmIAD - DUB

2 stops24h 57mScandinavian Airlines

Wed 1/2811:30 amDUB - IAD

2 stops34h 45mScandinavian Airlines

Deal found 12/2

$528

Sun 4/510:25 pmIAD - DUB

Nonstop7h 15mUnited Airlines

Sun 4/128:50 amDUB - IAD

Nonstop8h 00mUnited Airlines

Deal found 12/2

$542

Tue 3/171:19 pmIAD - DUB

2 stops18h 26mScandinavian Airlines

Sun 3/297:15 pmDUB - IAD

2 stops26h 35mScandinavian Airlines

Deal found 12/1

$528

Tue 3/175:35 pmIAD - DUB

1 stop9h 55mUnited Airlines

Sun 3/298:50 amDUB - IAD

Nonstop8h 00mUnited Airlines

Deal found 12/1

$542

Wed 4/158:20 pmIAD - DUB

2 stops33h 00mScandinavian Airlines

Sun 4/197:15 pmDUB - IAD

2 stops26h 35mScandinavian Airlines

Deal found 12/2

$537

Wed 4/157:10 pmIAD - DUB

Nonstop7h 10mUnited Airlines

Sun 4/1912:30 pmDUB - IAD

Nonstop8h 05mUnited Airlines

Deal found 12/2

$542

Wed 4/87:10 pmIAD - DUB

Nonstop7h 10mUnited Airlines

Mon 4/1312:30 pmDUB - IAD

Nonstop8h 05mUnited Airlines

Deal found 12/1

$542

Mon 4/205:20 pmIAD - DUB

1 stop11h 25mUnited Airlines

Mon 4/2712:30 pmDUB - IAD

Nonstop8h 05mUnited Airlines

Deal found 12/2

$547

Last-minute flights from Dulles Intl to Dublin
Discover last-minute flight deals from Dulles Intl to Dublin. Data last updated December 3, 2025 and is based on user searches.

Mon 12/295:31 pmIAD - DUB

1 stop33h 39mUnited Airlines

Fri 1/99:00 amDUB - IAD

2 stops31h 49mUnited Airlines

Deal found 12/1

$513

Mon 1/57:40 pmIAD - DUB

1 stop9h 35mIcelandair

Sun 1/2511:30 amDUB - IAD

1 stop12h 00mIcelandair

Deal found 12/2

$519

Fri 1/97:40 pmIAD - DUB

2 stops24h 25mMultiple Airlines

Tue 1/136:15 pmDUB - IAD

2 stops29h 15mMultiple Airlines

Deal found 12/2

$511

Wed 1/145:26 pmIAD - DUB

2 stops14h 14mDelta

Wed 1/211:25 pmDUB - IAD

2 stops15h 59mDelta

Deal found 12/1

$510

Thu 1/158:30 pmIAD - DUB

1 stop16h 15mSWISS

Tue 1/2012:55 pmDUB - IAD

1 stop31h 15mSWISS

Deal found 11/30

$506

Thu 1/159:00 amIAD - DUB

1 stop17h 10mMultiple Airlines

Thu 1/225:00 amDUB - IAD

2 stops16h 24mMultiple Airlines

Deal found 11/30

$517

Fri 1/166:20 pmIAD - DUB

1 stop15h 45mBritish Airways

Thu 1/228:50 amDUB - IAD

1 stop11h 45mBritish Airways

Deal found 12/2

$514

Sat 1/178:30 pmIAD - DUB

2 stops34h 15mScandinavian Airlines

Sat 1/2410:10 amDUB - IAD

1 stop13h 40mScandinavian Airlines

Deal found 12/2

$505

Sat 1/178:30 pmIAD - DUB

2 stops34h 15mScandinavian Airlines

Sun 1/2510:55 amDUB - IAD

2 stops33h 25mScandinavian Airlines

Deal found 12/1

$515

Sun 1/189:45 pmIAD - DUB

1 stop12h 20mBritish Airways

Sat 4/188:35 amDUB - IAD

1 stop12h 15mBritish Airways

Deal found 12/2

$518

Tue 1/204:30 pmIAD - DUB

1 stop9h 40mMultiple Airlines

Sun 1/256:35 pmDUB - IAD

2 stops48h 25mMultiple Airlines

Deal found 12/2

$512

One-way flights from Dulles Intl to Dublin
Search for one-way flight options from Dulles Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated December 3, 2025.

Mon 1/261:31 pmIAD - DUB

2 stops39h 44mMultiple Airlines

Deal found 12/1

$224

Wed 1/2810:30 pmIAD - DUB

2 stops30h 30mMultiple Airlines

Deal found 12/1

$235

Sun 1/112:53 pmIAD - DUB

3 stops42h 57mMultiple Airlines

Deal found 12/2

$258

Thu 1/158:49 amIAD - DUB

2 stops29h 21mMultiple Airlines

Deal found 12/2

$264

Thu 1/295:30 pmIAD - DUB

3 stops21h 05mMultiple Airlines

Deal found 12/1

$266

Wed 1/1410:30 pmIAD - DUB

2 stops30h 30mMultiple Airlines

Deal found 12/2

$268

Find flight deals from Dulles Intl to Dublin

Most accurate provider	Gotogate 3 stars
Most trusted provider	Gotogate 3 stars
Round-trip from	$505 (Delta)
One-way from	$224 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$961
Good round-trip deal	$684 or less
Good one-way deal	$432 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Dublin flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Dublin flights.

Search Deals

From Washington, D.C. Dulles Intl to Dublin

Search Deals

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

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Dublin.

Search Deals

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

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin 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

Sat 1/17

8:30 pm-11:45 am

2 stops34h 15m

Dublin

Sat 1/24

10:10 am-6:50 pm

1 stop13h 40m

$505

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 1/22

12:23 pm-6:20 pm

2 stops24h 57m

Dublin

Wed 1/28

11:30 am-5:15 pm

2 stops34h 45m

$528

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 3/17

1:19 pm-11:45 am

2 stops18h 26m

Dublin

Sun 3/29

7:15 pm-4:50 pm

2 stops26h 35m

$528

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 4/21

6:15 am-9:45 am

1 stop22h 30m

Dublin

Sun 4/26

9:50 am-11:50 am

2 stops31h 00m

$529

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 4/15

8:20 pm-10:20 am

2 stops33h 00m

Dublin

Sun 4/19

7:15 pm-4:50 pm

2 stops26h 35m

$537

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 4/5

10:25 pm-10:40 am

Nonstop7h 15m

Dublin

Sun 4/12

8:50 am-11:50 am

Nonstop8h 00m

$542

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 3/17

5:35 pm-7:30 am

1 stop9h 55m

Dublin

Sun 3/29

8:50 am-11:50 am

Nonstop8h 00m

$542

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 4/15

7:10 pm-7:20 am

Nonstop7h 10m

Dublin

Sun 4/19

12:30 pm-3:35 pm

Nonstop8h 05m

$542

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 4/8

7:10 pm-7:20 am

Nonstop7h 10m

Dublin

Mon 4/13

12:30 pm-3:35 pm

Nonstop8h 05m

$542

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 4/20

5:20 pm-9:45 am

1 stop11h 25m

Dublin

Mon 4/27

12:30 pm-3:35 pm

Nonstop8h 05m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 22 results

Compare providers for flights from Dulles Intl to Dublin

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Dublin in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
AranGrant	Price Accuracy2 stars	Trust Score*3 stars
Justfly.com	Price Accuracy3 stars	Trust Score*3 stars
Gotogate	Price Accuracy3 stars	Trust Score*3 stars
Ovago	Price Accuracy2 stars	Trust Score*2 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Gurufare	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Dublin flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Washington, D.C. Dulles Intl Airport-Dublin flight deals on Cheapflights vs. Gotogate >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Dublin flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Dublin flights, Cheapflights users trust Gotogate the most. Gotogate has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

Prices

Airlines

Delays

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Dublin?

The best time to book flights from Washington, D.C. Dulles Intl Airport to Dublin is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $371). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $536). 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 DUB?

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Dublin in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

The best insider tips for Washington, D.C. Dulles Intl Airport to Dublin flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Dublin trip

Airports

IAD

For a smooth departure, use the Aerotrain to navigate between terminals, but be prepared for long walks from the train to certain gates.

DUB

Upon arrival at DUB, use the Aircoach or Dublin Express for a quick 30-40 minute ride into central Dublin.

Our travel experts

James March

Expert on DUB

Ramsey Qubein

Expert on IAD

Reviews of airlines servicing Dublin

Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Aer Lingus from Washington, D.C. Dulles Intl Airport to Dublin 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.

United Airlines

7.4

Good

9,064 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,064 reviews

United Airlines

7.4

Good

9,064 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

American Airlines

7.2

Good

11,045 reviews

United Airlines

7.4

Good

9,064 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Aer Lingus

7.2

Good

1,384 reviews

United Airlines

7.4

Good

9,064 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Icelandair

7.0

Good

584 reviews

United Airlines

7.4

Good

9,064 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

British Airways

6.7

Okay

7,550 reviews

United Airlines

7.4

Good

9,064 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

What airport do you fly into for flights to Dublin from Washington, D.C. Dulles Intl?
Most people fly into Dublin (DUB) if they book a flight to Dublin from Washington, D.C. Dulles Intl. On average, Dublin has 12 inbound flights from Washington, D.C. Dulles Intl per day from 9 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.
How long is the flight from Washington, D.C. Dulles Intl Airport to Dublin?
Departing from Washington, D.C. Dulles Intl Airport to Dublin will take you 22h 30m. Airlines will cover a distance of 3393 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Dublin round-trip?
Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Dublin round-trip from $322. Other airlines that can offer you cheap pricing are Icelandair, from $371, and TAP AIR PORTUGAL, from $427. PLAY is 54% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Dublin one-way?
The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $248. However, be on the lookout for offers from Aer Lingus and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Dublin for a low price.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Dublin?
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 Dublin on time: Aer Lingus (92%), Qatar Airways (90%), British Airways (88%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Dublin?
On average you can expect to pay $1,074 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $375 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $362.
Can I find deals for flights from Dulles Intl to Dublin that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Dublin?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Dublin.
Can I find deals for business class flights from Dulles Intl to Dublin?
Yes. Cheapflights offers flight deals from Dulles Intl to Dublin 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 Dublin?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $371). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $536). 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

Maynooth

Castleknock

Wicklow

Leixlip

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Dublin

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Other flights to Dublin

Top 9 airlines flying from Dulles Intl to Dublin

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$322	Average$512	FlexibilityNo cancel fee	On-timeN/A
Icelandair	Cheapest$371	Average$601	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$427	Average$587	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$456	Average$497	FlexibilityNo cancel fee	On-time77%
Aer Lingus	Cheapest$470	Average$687	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$484	Average$630	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$525	Average$819	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$618	Average$887	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$661	Average$891	FlexibilityNo cancel fee	On-time76%

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$224+ Cheap flights from Dulles Intl (IAD) to Dublin (DUB)

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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or February, booked 58 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to Dublin

Cheapest flights from Dulles Intl to DublinExplore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

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

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

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What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Dublin?

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The best insider tips for Washington, D.C. Dulles Intl Airport to Dublin flights

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Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Dublin trip

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Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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Alternative routes for Dulles Intl to Dublin

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Top 9 airlines flying from Dulles Intl to Dublin

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Cheapest flights from Dulles Intl to Dublin
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.