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$228+ Cheap flights from Washington, D.C. (WAS) 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — DUB
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Dublin are usually found in January or February, booked 35 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$352
(Booking.com)

One-way from

$228
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$649

Good round-trip deal

$547 or less

Good one-way deal

$426 or less
From Washington, D.C. (WAS) to Dublin
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One-way flight from Washington, D.C. (WAS) to Dublin
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Highest demand for flights based on searches. 12% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Dublin.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Dublin.
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Find flight deals from Washington, D.C. to Dublin

Cheapest flights from Washington, D.C. to Dublin
Explore the most affordable flight options available from Washington, D.C. to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Booking.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:50 pmBWI - DUB
1 stop10h 30mPLAY
Sat 9/2011:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/14$352
This Booking.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:50 pmBWI - DUB
1 stop10h 20mPLAY
Thu 9/2511:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/12$360
This Booking.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:50 pmBWI - DUB
1 stop10h 30mPLAY
Fri 9/1911:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/12$361
This Booking.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:50 pmBWI - DUB
1 stop10h 25mPLAY
Sat 9/611:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/12$362
This Gotogate deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:50 pmBWI - DUB
1 stop10h 15mPLAY
Sat 9/2711:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/12$366
This PLAY deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:50 pmBWI - DUB
1 stop10h 20mPLAY
Sat 9/2011:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/14$368
This PLAY deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:50 pmBWI - DUB
1 stop10h 25mPLAY
Fri 9/511:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/12$369
This Kiwi.com deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/76:50 pmBWI - DUB
1 stop10h 20mPLAY
Sat 9/1311:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/14$370
This CheapOair deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:50 pmBWI - DUB
1 stop10h 20mPLAY
Sat 9/2711:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/12$371
This PLAY deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:50 pmBWI - DUB
1 stop10h 20mPLAY
Sun 9/2111:35 amDUB - BWI
1 stop11h 05mPLAY
Deal found 8/14$372
This United Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/173:05 pmDCA - DUB
1 stop15h 05mUnited Airlines
Tue 8/269:20 amDUB - DCA
1 stop10h 02mUnited Airlines
Deal found 8/14$457
This FlightHub deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:05 pmIAD - DUB
2 stops32h 25mScandinavian Airlines
Tue 10/2111:45 amDUB - IAD
2 stops37h 14mScandinavian Airlines
Deal found 8/14$457

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Dublin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Dublin that are best for you.

Fly from

Washington, D.C.

Fly to

Dublin

Route

Depart

Return

Price

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Wed 9/17

6:50 pm-10:10 am

1 stop10h 20m

Dublin

Thu 9/25

11:35 am-5:40 pm

1 stop11h 05m

$360

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Wed 9/17

6:50 pm-10:10 am

1 stop10h 20m

Dublin

Sun 9/21

11:35 am-5:40 pm

1 stop11h 05m

$360

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Wed 9/10

6:50 pm-10:10 am

1 stop10h 20m

Dublin

Sat 9/13

11:35 am-5:40 pm

1 stop11h 05m

$361

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sat 9/13

6:50 pm-10:20 am

1 stop10h 30m

Dublin

Fri 9/19

11:35 am-5:40 pm

1 stop11h 05m

$364

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Fri 9/19

6:50 pm-10:05 am

1 stop10h 15m

Dublin

Sat 9/27

11:35 am-5:40 pm

1 stop11h 05m

$366

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sat 9/20

6:50 pm-10:20 am

1 stop10h 30m

Dublin

Sat 9/27

11:35 am-5:40 pm

1 stop11h 05m

$368

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Wed 9/10

6:50 pm-10:10 am

1 stop10h 20m

Dublin

Sat 9/20

11:35 am-5:40 pm

1 stop11h 05m

$368

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sat 9/13

6:50 pm-10:20 am

1 stop10h 30m

Dublin

Sat 9/20

11:35 am-5:40 pm

1 stop11h 05m

$368

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Tue 8/26

6:50 pm-10:15 am

1 stop10h 25m

Dublin

Fri 9/5

11:35 am-5:40 pm

1 stop11h 05m

$368

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 8/17

3:05 pm-11:10 am

1 stop15h 05m

Dublin

Tue 8/26

9:20 am-2:22 pm

1 stop10h 02m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 57 results
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The best insider tips for Washington, D.C. to Dublin flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Dublin trip
Airports
IAD

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

Read more about IADby Ramsey Qubein
DUB

Upon arrival at DUB, use the Aircoach or Dublin Express for a quick 30-40 minute trip to central Dublin from Terminal 2.

Read more about DUBby James March
Our travel experts
James March

James March

Expert on DUB

James March

James March

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Dublin. Price data was last updated on August 8, 2025.

The price you pay for your flight from Washington, D.C. to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 35 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Dublin (average of $509). Flying from Washington, D.C. to Dublin in June is currently the most expensive (average of $925). 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 DUB?

Find hourly flight availability from Washington, D.C. 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 August 14, 2025.

It’s typically best to fly out from Washington, D.C. to Dublin in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

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

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

Explore weekly flight availability from Washington, D.C. 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 August 14, 2025.

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

How much does it cost to fly round-trip from Washington, D.C. to Dublin?

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

Share of 1-stop round-trip flights from Washington, D.C. to Dublin chosen by Cheapflights users in the past 12 months, using the same layover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 83% of 1-stop itineraries from Washington, D.C. to Dublin on Cheapflights.

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

Average round-trip fare for 1-stop flights from Washington, D.C. to Dublin, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $371.

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

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Dublin, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

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

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

Average layover duration for 1-stop one-way flights from Washington, D.C. to Dublin, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

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

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 August 14, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines, and Aer Lingus from Washington, D.C. to Dublin by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.1
Good
1,214 reviews
United Airlines
7.4
Good
8,916 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Icelandair
7.0
Good
526 reviews
United Airlines
7.4
Good
8,916 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
PLAY
7.0
Good
103 reviews
United Airlines
7.4
Good
8,916 reviews

Food

6.6

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

    Dublin (DUB), located 5.7 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Dublin. 12 airlines have flights to Dublin from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Dublin should not be difficult; the airport handles an average of 13 inbound flights from Washington, D.C. per day.

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

    According to our current data, PLAY ($283), Scandinavian Airlines ($330), and Icelandair ($424) offers the cheapest pricing from Washington, D.C. to Dublin. PLAY is currently priced 57% below the average price you’ll pay for this route.

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

    When deciding which route to take from Washington, D.C. to Dublin consider Washington, D.C. Dulles Intl - Dublin, Baltimore/Washington - Dublin or Washington, D.C. Reagan-National - Dublin as they are the most popular.

  • What are the most reliable airlines from Washington, D.C. 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. to Dublin on time: SWISS (59%), Lufthansa (59%), Air Canada (57%).

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

    While on average a flight from Washington, D.C. to Dublin is generally $1,895, our data shows the cheapest flight currently is $313. When looking at the most popular route, (Washington, D.C. Dulles Intl - Dublin), you can expect to pay $377 for that flight.

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

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

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

    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 Dublin.

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

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Dublin?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Dublin (average of $509). Flying from Washington, D.C. to Dublin in June is currently the most expensive (average of $925). 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

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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

Discover the top 10 airlines that operate flights from Washington, D.C. to Dublin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$283Average$411FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$330Average$488FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$424Average$661FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$428Average$587FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$457Average$711FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$457Average$677FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$496Average$796FlexibilityNo cancel feeOn-time69%
DeltaCheapest$496Average$799FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$526Average$673FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$537Average$892FlexibilityNo cancel feeOn-time71%

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