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 $481. Other airlines that can offer you cheap pricing are United Airlines, from $483, and Aer Lingus, from $485. Scandinavian Airlines is 32% 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 $310. However, be on the lookout for offers from TAP AIR PORTUGAL and Aer Lingus, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Dublin for a low price.

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

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Dublin 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.

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 $2,082 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $398 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $349.

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: SWISS (70%), Lufthansa (70%), American Airlines (64%).

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 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 Dublin?

Flights from Washington, D.C. Dulles Intl Airport to Dublin are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Dublin.

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

January is one of the best times of the year to fly to Dublin from Washington, D.C. Dulles Intl Airport. Prices for January average $665 per person but you can even find prices for as low as $294. The most expensive prices can be found in the month of June. Opting for a January flight can save you 30% on your journey compared to booking in June

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.

$307+ 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 March, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to Dublin

Round-trip from	$481 (oojo)
One-way from	$307 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$830
Good round-trip deal	$603 or less
Good one-way deal	$493 or less

From Washington, D.C. Dulles Intl to Dublin

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

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Highest demand for flights based on searches. 15% potential increase in price ($129 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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

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

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Find 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 July 2, 2025.

Fri 10/310:05 pmIAD - DUB

2 stops16h 10mScandinavian Airlines

Sun 10/125:00 pmDUB - IAD

1 stop31h 59mScandinavian Airlines

Deal found 6/30

$481

Mon 8/115:31 pmIAD - DUB

1 stop9h 14mUnited Airlines

Fri 8/2211:35 amDUB - IAD

1 stop10h 55mUnited Airlines

Deal found 7/2

$483

Fri 10/35:00 pmIAD - DUB

1 stop26h 05mTAP AIR PORTUGAL

Sun 10/126:50 pmDUB - IAD

1 stop31h 00mTAP AIR PORTUGAL

Deal found 6/30

$484

Sun 8/1010:40 pmIAD - DUB

1 stop12h 05mAer Lingus

Tue 8/1912:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Deal found 7/1

$485

Mon 8/1810:40 pmIAD - DUB

1 stop11h 00mBritish Airways

Tue 8/2610:25 amDUB - IAD

1 stop14h 45mBritish Airways

Deal found 6/30

$489

Sat 9/68:30 pmIAD - DUB

1 stop9h 35mIcelandair

Thu 9/252:15 pmDUB - IAD

1 stop10h 05mIcelandair

Deal found 6/30

$494

Sun 8/105:23 pmIAD - DUB

1 stop11h 37mDelta

Wed 8/209:10 amDUB - IAD

1 stop12h 10mDelta

Deal found 7/2

$497

Sun 8/1010:20 pmIAD - DUB

1 stop13h 35mLufthansa

Tue 8/199:00 amDUB - IAD

1 stop11h 50mLufthansa

Deal found 7/1

$498

Wed 8/65:20 pmIAD - DUB

Nonstop6h 50mIberia

Wed 9/1012:50 pmDUB - IAD

Nonstop8h 00mIberia

Deal found 6/30

$513

Mon 12/15:05 pmIAD - DUB

Nonstop6h 50mMultiple Airlines

Sun 12/141:15 pmDUB - IAD

1 stop14h 50mMultiple Airlines

Deal found 7/2

$519

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 July 2, 2025.

Fri 9/2610:05 pmIAD - DUB

1 stop30h 20mScandinavian Airlines

Sat 10/48:05 pmDUB - IAD

2 stops28h 54mScandinavian Airlines

Deal found 6/30

$481

Mon 8/115:31 pmIAD - DUB

1 stop9h 14mUnited Airlines

Fri 8/2211:35 amDUB - IAD

1 stop10h 55mUnited Airlines

Deal found 7/2

$483

Sun 8/1010:40 pmIAD - DUB

1 stop12h 05mAer Lingus

Tue 8/1912:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Deal found 7/1

$485

Mon 8/1810:40 pmIAD - DUB

1 stop11h 00mBritish Airways

Tue 8/2610:25 amDUB - IAD

1 stop14h 45mBritish Airways

Deal found 6/30

$489

Sat 9/68:30 pmIAD - DUB

1 stop9h 35mIcelandair

Thu 9/252:15 pmDUB - IAD

1 stop10h 05mIcelandair

Deal found 6/30

$494

Sun 8/105:23 pmIAD - DUB

1 stop11h 37mDelta

Tue 8/199:10 amDUB - IAD

1 stop15h 05mDelta

Deal found 7/2

$497

Sun 8/1010:20 pmIAD - DUB

1 stop13h 35mLufthansa

Tue 8/199:00 amDUB - IAD

1 stop11h 50mLufthansa

Deal found 7/1

$498

Tue 8/510:20 pmIAD - DUB

1 stop20h 35mTAP AIR PORTUGAL

Tue 9/26:50 pmDUB - IAD

1 stop25h 30mTAP AIR PORTUGAL

Deal found 6/30

$503

Wed 8/65:20 pmIAD - DUB

Nonstop6h 50mIberia

Wed 9/1012:50 pmDUB - IAD

Nonstop8h 00mIberia

Deal found 6/30

$513

Wed 8/65:23 pmIAD - DUB

1 stop11h 37mKLM

Tue 9/91:15 pmDUB - IAD

1 stop11h 28mKLM

Deal found 7/1

$519

Wed 9/1010:20 amIAD - DUB

2 stops16h 25mMultiple Airlines

Fri 9/199:00 amDUB - IAD

1 stop11h 50mMultiple Airlines

Deal found 6/30

$520

Last-minute flights from Dulles Intl to Dublin
Discover last-minute flight deals from Dulles Intl to Dublin. Data last updated July 2, 2025 and is based on user searches.

Tue 7/810:15 pmIAD - DUB

Nonstop7h 05mLufthansa

Tue 7/225:55 amDUB - IAD

1 stop12h 35mLufthansa

Deal found 7/2

$572

Tue 7/83:37 pmIAD - DUB

1 stop12h 08mDelta

Tue 7/229:10 amDUB - IAD

1 stop15h 05mDelta

Deal found 7/1

$574

Tue 7/810:20 pmIAD - DUB

1 stop13h 35mMultiple Airlines

Fri 7/188:45 amDUB - IAD

1 stop12h 30mMultiple Airlines

Deal found 6/30

$589

Wed 7/97:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Wed 7/238:50 amDUB - IAD

Nonstop8h 00mUnited Airlines

Deal found 6/30

$550

Wed 7/910:40 pmIAD - DUB

1 stop10h 55mBritish Airways

Wed 7/168:20 pmDUB - IAD

1 stop28h 50mBritish Airways

Deal found 6/30

$555

Wed 7/98:45 pmIAD - DUB

1 stop34h 25mSWISS

Wed 7/166:40 pmDUB - IAD

1 stop26h 35mSWISS

Deal found 7/1

$578

Wed 7/92:25 pmIAD - DUB

2 stops12h 20mAir Canada

Thu 7/179:50 amDUB - IAD

2 stops16h 29mAir Canada

Deal found 7/1

$652

Mon 8/410:20 amIAD - DUB

2 stops16h 25mMultiple Airlines

Tue 8/199:00 amDUB - IAD

1 stop11h 50mMultiple Airlines

Deal found 7/2

$481

Tue 8/510:20 pmIAD - DUB

1 stop20h 35mTAP AIR PORTUGAL

Tue 9/26:50 pmDUB - IAD

1 stop25h 30mTAP AIR PORTUGAL

Deal found 6/30

$503

Wed 8/65:20 pmIAD - DUB

Nonstop6h 50mIberia

Wed 9/1012:50 pmDUB - IAD

Nonstop8h 00mIberia

Deal found 6/30

$513

Wed 8/65:23 pmIAD - DUB

1 stop11h 37mKLM

Tue 9/91:15 pmDUB - IAD

1 stop11h 28mKLM

Deal found 7/1

$519

Sun 8/1010:40 pmIAD - DUB

1 stop12h 05mAer Lingus

Tue 8/1912:50 pmDUB - IAD

Nonstop8h 00mAer Lingus

Deal found 7/1

$485

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 July 2, 2025.

Fri 8/16:10 amIAD - DUB

3 stops33h 35mMultiple Airlines

Deal found 7/1

$307

Wed 7/3011:15 pmIAD - DUB

1 stop9h 00mIcelandair

Deal found 7/1

$310

Sun 7/2010:20 pmIAD - DUB

1 stop14h 45mTAP AIR PORTUGAL

Deal found 6/30

$322

Mon 9/15:20 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 7/1

$364

Sun 8/107:05 pmIAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 6/30

$394

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

Fri 10/3

10:05 pm-9:25 am

1 stop30h 20m

Dublin

Sun 10/12

10:15 am-7:59 pm

1 stop14h 44m

$481

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 8/11

5:31 pm-7:45 am

1 stop9h 14m

Dublin

Wed 8/20

11:35 am-5:30 pm

1 stop10h 55m

$483

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 10/3

5:00 pm-12:05 am

1 stop26h 05m

Dublin

Sun 10/12

6:50 pm-8:50 pm

1 stop31h 00m

$484

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

10:40 pm-3:45 pm

1 stop12h 05m

Dublin

Tue 8/19

12:50 pm-3:50 pm

Nonstop8h 00m

$485

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 8/18

10:40 pm-2:40 pm

1 stop11h 00m

Dublin

Tue 8/26

10:25 am-8:10 pm

1 stop14h 45m

$489

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 9/6

8:30 pm-11:05 am

1 stop9h 35m

Dublin

Thu 9/25

2:15 pm-7:20 pm

1 stop10h 05m

$494

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

5:23 pm-10:00 am

1 stop11h 37m

Dublin

Tue 8/19

9:10 am-7:15 pm

1 stop15h 05m

$497

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

10:20 pm-4:55 pm

1 stop13h 35m

Dublin

Tue 8/19

9:00 am-3:50 pm

1 stop11h 50m

$498

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 8/6

5:20 pm-5:10 am

Nonstop6h 50m

Dublin

Wed 9/10

12:50 pm-3:50 pm

Nonstop8h 00m

$513

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 12/1

5:05 pm-4:55 am

Nonstop6h 50m

Dublin

Sun 12/14

1:15 pm-11:05 pm

1 stop14h 50m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 15 results

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

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

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 37 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $509). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $929). 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 afternoon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

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

The most flights from IAD to DUB are scheduled on a Tuesday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Dublin

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines 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.

Delta

8.0

Very good

7,975 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

7,975 reviews

Delta

8.0

Very good

7,975 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

1,366 reviews

Delta

8.0

Very good

7,975 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,975 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!

Scandinavian Airlines

7.3

Good

1,414 reviews

Delta

8.0

Very good

7,975 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!

Aer Lingus

7.1

Good

1,140 reviews

Delta

8.0

Very good

7,975 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 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.
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 $481. Other airlines that can offer you cheap pricing are United Airlines, from $483, and Aer Lingus, from $485. Scandinavian Airlines is 32% 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 $310. However, be on the lookout for offers from TAP AIR PORTUGAL and Aer Lingus, 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: SWISS (70%), Lufthansa (70%), American Airlines (64%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Dublin?
On average you can expect to pay $2,082 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $398 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $349.
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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $509). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $929). 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

Swords

Wicklow

Leixlip

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dulles Intl to Dublin

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Baltimore to Milltown (Kerry) flights

Reagan-National to Donegal flights

Dulles Intl to Milltown (Kerry) flights

Complete your trip

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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$288	Average$410	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$322	Average$496	FlexibilityNo cancel fee	On-time77%
Icelandair	Cheapest$424	Average$669	FlexibilityNo cancel fee	On-time76%
TAP AIR PORTUGAL	Cheapest$434	Average$644	FlexibilityNo cancel fee	On-timeN/A
Aer Lingus	Cheapest$470	Average$692	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$484	Average$644	FlexibilityNo cancel fee	On-time70%
United Airlines	Cheapest$557	Average$884	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$648	Average$891	FlexibilityNo cancel fee	On-time71%
Lufthansa	Cheapest$661	Average$893	FlexibilityNo cancel fee	On-time76%

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$307+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Dublin with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or March, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to Dublin

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 July 2, 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 July 2, 2025.

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.

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

DUB

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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.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Dublin. Price data was last updated on June 27, 2025.

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

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

Find hourly flight availability from Dulles Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 2, 2025.

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

Explore weekly flight availability from Dulles Intl to Dublin. 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 July 2, 2025.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dublin. Reviews last updated July 2, 2025.

Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines 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.

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.

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

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

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

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

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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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 July 2, 2025.