HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$291+ Cheap flights from Dublin (DUB) to Washington, D.C. (WAS)

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
Apr 29 — May 61
Wed 4/29
Wed 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Dublin to Washington, D.C. are usually found in September or February, booked 78 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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

Cheapest flights from Dublin to Washington, D.C.
Explore the most affordable flight options available from Dublin to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.

This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am
DUB
-
IAD
1 stop12h 00m
Icelandair
Tue 12/87:40 pm
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/25$450
This Booking.com deal was found by Cheapflights users on 3/25. 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.
Thu 11/1911:30 am
DUB
-
IAD
1 stop12h 00m
Icelandair
Sun 11/297:40 pm
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/25$467
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Fri 11/2011:30 am
DUB
-
IAD
1 stop12h 00m
Icelandair
Mon 11/307:40 pm
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/26$479
This Kiwi.com deal was found by Cheapflights users on 3/26. 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.
Sat 11/2111:30 am
DUB
-
IAD
1 stop12h 00m
Icelandair
Sat 11/287:40 pm
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/26$480
This Icelandair deal was found by Cheapflights users on 3/26. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:30 am
DUB
-
IAD
1 stop12h 00m
Icelandair
Thu 11/267:40 pm
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/26$481
This FlightHub deal was found by Cheapflights users on 3/25. 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.
Thu 11/1911:30 am
DUB
-
BWI
1 stop12h 10m
Icelandair
Sun 11/297:40 pm
BWI
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/25$505
This Gotogate deal was found by Cheapflights users on 3/29. 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.
Sat 10/102:15 pm
DUB
-
IAD
1 stop10h 05m
Icelandair
Sat 10/178:30 pm
IAD
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/29$505
This Expedia deal was found by Cheapflights users on 3/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:30 am
DUB
-
BWI
1 stop12h 10m
Icelandair
Fri 11/277:40 pm
BWI
-
DUB
1 stop9h 35m
Icelandair
Deal found 3/26$509
This Gotogate deal was found by Cheapflights users on 3/29. 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.
Thu 4/302:15 pm
DUB
-
IAD
1 stop10h 05m
Icelandair
Mon 5/48:30 pm
IAD
-
DUB
1 stop11h 45m
Icelandair
Deal found 3/29$512
This Gotogate deal was found by Cheapflights users on 3/26. 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.
Wed 4/2212:15 pm
DUB
-
IAD
1 stop12h 05m
Icelandair
Sun 5/178:30 pm
IAD
-
DUB
1 stop11h 45m
Icelandair
Deal found 3/26$513
This TravelUp deal was found by Cheapflights users on 3/30. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:30 am
DUB
-
DCA
1 stop16h 29m
JetBlue
Wed 5/66:00 am
DCA
-
DUB
1 stop22h 00m
JetBlue
Deal found 3/30$515
This TravelUp deal was found by Cheapflights users on 3/29. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:40 am
DUB
-
DCA
1 stop15h 19m
JetBlue
Wed 5/137:59 pm
DCA
-
DUB
1 stop31h 21m
JetBlue
Deal found 3/29$517

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

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Washington, D.C. (WAS). 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 March 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$512
(Gotogate)

One-way from

$291
(JetBlue)

Popular in

August

Cheapest in

September

Average price

$569

Good round-trip deal

$662 or less

Good one-way deal

$559 or less
Provider with most accurate pricing for Dublin-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Washington, D.C. (WAS) flights.
Search Deals
From Dublin to Washington, D.C. (WAS)
Search Deals
One-way flight from Dublin to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Dublin to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Dublin to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin to Washington, D.C. 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 March 30, 2026.
Use the filters below to find and compare flights from Dublin to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 4/16

2:15 pm-7:20 pm

1 stop10h 05m

Washington, D.C. Dulles Intl

Mon 4/20

8:30 pm-1:15 pm

1 stop11h 45m

$544

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 8/25

2:15 pm-10:15 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

Tue 9/22

8:30 pm-11:05 am

1 stop9h 35m

$563

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 4/24

12:15 pm-7:25 pm

1 stop12h 10m

Baltimore/Washington

Tue 4/28

8:30 pm-11:05 am

1 stop9h 35m

$568

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 4/29

10:40 am-3:42 pm

1 stop10h 02m

Washington, D.C. Reagan-National

Tue 5/5

3:35 pm-8:20 am

1 stop11h 45m

$572

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 5/13

7:45 pm-7:40 pm

1 stop28h 55m

Baltimore/Washington

Mon 5/25

9:30 pm-7:35 pm

1 stop17h 05m

$598

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 4/30

1:45 pm-8:10 pm

1 stop11h 25m

Washington, D.C. Dulles Intl

Sun 5/3

7:15 pm-7:45 am

1 stop31h 30m

$619

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 6/3

10:40 am-5:47 pm

1 stop12h 07m

Washington, D.C. Reagan-National

Wed 7/29

5:24 pm-8:20 am

1 stop9h 56m

$622

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 5/1

8:35 am-10:29 pm

2 stops18h 54m

Washington, D.C. Reagan-National

Mon 5/4

5:31 pm-2:30 pm

2 stops15h 59m

$623

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sat 5/2

8:35 am-10:47 pm

2 stops19h 12m

Washington, D.C. Reagan-National

Mon 5/4

5:31 pm-2:30 pm

2 stops15h 59m

$623

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 4/9

5:55 am-7:19 pm

2 stops18h 24m

Washington, D.C. Dulles Intl

Tue 4/14

9:45 pm-3:25 pm

1 stop12h 40m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 56 resultsSorted by cheapest first
1
2
3
...
6

Compare providers for flights from Dublin to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dublin to Washington, D.C. in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Washington, D.C.. Price data was last updated on March 13, 2026.

To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C., you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Dublin to Washington, D.C. (average of $317). Flying from Dublin to Washington, D.C. in July is currently the most expensive (average of $510). 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 DUB to WAS?

Find hourly flight availability from Dublin to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 30, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Washington, D.C. as you normally would.

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

Explore weekly flight availability from Dublin to Washington, D.C.. 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 March 30, 2026.

The most flights from DUB to WAS are scheduled on a Friday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

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

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

About 14% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 153 minutes.

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

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

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

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

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

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 13% of flights being delayed.

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Washington, D.C. trip
Our travel experts
Evie Carrick

Evie Carrick

Expert on Aer Lingus

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
James March

James March

Expert on DUB

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

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

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated March 30, 2026.
Peruse reviews from past customers who have flown with United Airlines and Aer Lingus from Dublin to Washington, D.C. 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
9,522 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,522 reviews
United Airlines
7.4
Good
9,522 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Aer Lingus
7.2
Good
1,493 reviews
United Airlines
7.4
Good
9,522 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

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

    Most people fly from Dublin (DUB) if they book a flight from Dublin to Washington, D.C.. On average, Dublin has 12 outbound flights to Washington, D.C. per day from 2 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

  • How long is the flight from Dublin to Washington, D.C.?

    A quick flight from Dublin to Washington, D.C. can take about 10h 02m. Icelandair provides one of the quickest options available for as low as $572. The distance from Dublin to Washington, D.C. is about 3381 mi. This flight may include one or multiple stops.

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

    Flying on Aer Lingus is currently your cheapest option to Washington, D.C., with prices starting at $455. Another option worth looking into is United Airlines, starting at $645 round trip. Aer Lingus is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $335. Aer Lingus flights start at $436 while deals on American Airlines start at $494 one-way.

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

    While some choose either Dublin - Baltimore/Washington or Dublin - Washington, D.C. Reagan-National, Dublin - Washington, D.C. Dulles Intl is the most popular route from Dublin to Washington, D.C..

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

    The top 3 most reliable airlines when flying from Dublin to Washington, D.C. are American Airlines (75%), Aer Lingus (75%) and Iberia (75%).

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

    Looking for the cheapest flight from Dublin to Washington, D.C.? While on average our users pay $727, our data indicates the cheapest price to be $485. The most popular route (Dublin - Washington, D.C. Dulles Intl), is priced around $512.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Dublin to Washington, D.C. (average of $317). Flying from Dublin to Washington, D.C. in July is currently the most expensive (average of $510). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Dulles Intl flights
Shannon to Dulles Intl flights

Top 2 airlines flying from Dublin to Washington, D.C.

Discover the top 2 airlines that operate flights from Dublin to Washington, D.C.. 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 March 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$455Average$665FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$645Average$874FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.