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Washington, D.C.

$325+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
Sep 17 — Sep 241
Thu 9/17
Thu 9/24
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Dublin to Washington, D.C. are usually found in February or January, booked 9 days in advance, depart on a Monday or Thursday and return on a Wednesday

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 August 18, 2026.

This Booking.com deal was found by Cheapflights users on 8/13. 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 9/312:35 pm -
Nonstop8h 10m
Tue 9/89:05 pm -
Nonstop7h 00m
Deal found 8/13$427
This lastminute.com deal was found by Cheapflights users on 8/13. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:35 pm -
Nonstop8h 10m
Sun 9/275:15 pm -
Nonstop7h 00m
Deal found 8/13$537
This SmartFares deal was found by Cheapflights users on 8/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:15 pm -
1 stop13h 00m
Mon 9/78:30 pm -
1 stop11h 45m
Deal found 8/17$551
This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:55 am -
1 stop11h 40m
Mon 10/55:15 pm -
1 stop11h 00m
Deal found 8/14$556
This Icelandair deal was found by Cheapflights users on 8/17. 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 11/611:30 am -
1 stop12h 00m
Tue 11/107:40 pm -
1 stop9h 35m
Deal found 8/17$559
This Icelandair deal was found by Cheapflights users on 8/17. 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.
Tue 10/202:15 pm -
1 stop10h 05m
Tue 11/37:40 pm -
1 stop9h 35m
Deal found 8/17$571
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:35 am -
2 stops17h 40m
Thu 10/158:30 pm -
2 stops21h 55m
Deal found 8/14$573
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.
Wed 10/712:15 pm -
1 stop15h 00m
Tue 10/138:30 pm -
1 stop9h 35m
Deal found 8/14$577
This Mytrip deal was found by Cheapflights users on 8/15. 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 9/295:30 pm -
2 stops33h 45m
Tue 10/68:30 pm -
2 stops21h 55m
Deal found 8/15$578
This Icelandair deal was found by Cheapflights users on 8/17. 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 10/1612:15 pm -
1 stop12h 05m
Tue 10/208:30 pm -
1 stop9h 35m
Deal found 8/17$579
This Mytrip deal was found by Cheapflights users on 8/16. 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.
Wed 9/3012:30 pm -
2 stops35h 50m
Wed 10/711:20 pm -
2 stops14h 35m
Deal found 8/16$580
This Travelis 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:00 pm -
1 stop12h 03m
Mon 10/55:35 pm -
1 stop10h 40m
Deal found 8/14$590

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 August 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$427
(Booking.com)

One-way from

$325
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$805

Good round-trip deal

$647 or less

Good one-way deal

$655 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
High demand for flights, 0% potential price rise
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 August 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 August 18, 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 Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Sun 9/27

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Sun 10/4

9:45 pm-3:25 pm

1 stop12h 40m

$613

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Sun 9/6

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 9/15

9:45 pm-3:25 pm

1 stop12h 40m

$613

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Sun 9/6

5:55 am-3:35 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Tue 9/15

6:26 pm-6:25 pm

2 stops18h 59m

$614

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Tue 10/20

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 11/10

12:35 pm-9:00 am

2 stops15h 25m

$615

DublinBaltimore

DUB Dublin - BWI Baltimore/Washington

DUBBWI

Dublin

Wed 10/21

5:50 pm-7:40 pm

1 stop30h 50m

Baltimore/Washington

Wed 11/4

6:55 pm-5:00 pm

1 stop17h 05m

$616

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Wed 10/21

10:30 am-5:25 pm

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 11/4

6:05 pm-9:55 am

1 stop10h 50m

$616

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Tue 10/13

5:55 am-3:35 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Wed 10/21

3:03 pm-8:45 am

1 stop12h 42m

$617

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Wed 9/9

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Mon 9/14

6:26 pm-10:00 am

1 stop10h 34m

$617

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Wed 10/7

5:55 am-5:33 pm

2 stops16h 38m

Washington, D.C. Dulles Intl

Thu 10/15

6:15 pm-3:25 pm

1 stop16h 10m

$617

DublinWashington, D.C.

DUB Dublin - IAD Washington, D.C. Dulles Intl

DUBIAD

Dublin

Thu 9/3

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 9/8

12:25 pm-10:25 am

2 stops17h 00m

$617

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 56 resultsSorted by cheapest first
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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 August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 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.

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

Currently, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. (average of $524). Flying from Dublin to Washington, D.C. in August is currently the most expensive (average of $805). 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 August 18, 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 August 18, 2026.

The most flights from DUB to WAS are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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

Airfare is below average for this route at the moment.
Dublin to Washington, D.C. flights typically cost between $660 and $881 in September.
The cheapest round-trip price found within the last 5 days was $427 on Aer Lingus (Sep 3-Sep 8).

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 149 minutes.

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

Historically, flights departing in the evening 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.

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

To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C., you should look to book at least 36 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.

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 August 18, 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
10,106 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,106 reviews
United Airlines
7.4
Good
10,106 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.3
Good
1,708 reviews
United Airlines
7.4
Good
10,106 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 11h 38m. Icelandair provides one of the quickest options available for as low as $591. 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 Icelandair is currently your cheapest option to Washington, D.C., with prices starting at $452. Another option worth looking into is Aer Lingus, starting at $454 round trip. Icelandair is 31% 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 Aer Lingus, which is currently one of the cheapest options available, starting at $477. American Airlines flights start at $611 while deals on United Airlines start at $1,079 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 Qatar Airways (90%), American Airlines (86%) and Aer Lingus (86%).

  • 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 $1,821, our data indicates the cheapest price to be $415. The most popular route (Dublin - Washington, D.C. Dulles Intl), is priced around $551.

  • 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, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. (average of $524). Flying from Dublin to Washington, D.C. in August is currently the most expensive (average of $805). 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
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Woodbridge
Silver Spring
Largo

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 August 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$452Average$467FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$454Average$652FlexibilityNo cancel feeOn-timeN/A

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