Cheap flights from Dublin to Washington, D.C. from £325

DUB — WAS
17 Sep — 24 Sep1
1 adult
1 adult, Economy, 0 bags
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 Tuesday or Thursday and return on a Monday

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

Enter your travel dates to find the best prices.

Cheapest flights from Dublin to Washington, D.C.

Wed 2/912:15 -
1 stop12h 05m
Wed 9/920:30 -
1 stop11h 45m
Deal found 17/8£407
Fri 6/1111:30 -
1 stop12h 00m
Tue 10/1119:40 -
1 stop9h 35m
Deal found 17/8£412
Tue 20/1014:15 -
1 stop10h 05m
Tue 10/1119:40 -
1 stop9h 35m
Deal found 17/8£421
Fri 2/1019:05 -
1 stop26h 55m
Fri 9/1020:20 -
2 stops18h 50m
Deal found 18/8£426
Fri 16/1012:15 -
1 stop12h 05m
Mon 19/1020:30 -
1 stop11h 45m
Deal found 17/8£427
Tue 1/914:15 -
1 stop10h 05m
Sat 3/1020:30 -
1 stop9h 35m
Deal found 13/8£432
Tue 1/914:15 -
1 stop10h 05m
Tue 29/920:30 -
1 stop9h 35m
Deal found 13/8£436
Wed 2/912:15 -
1 stop12h 05m
Tue 29/920:30 -
1 stop9h 35m
Deal found 13/8£437
Sat 5/1208:50 -
1 stop13h 15m
Tue 8/1217:12 -
2 stops21h 33m
Deal found 13/8£438
Fri 6/1113:35 -
1 stop11h 20m
Tue 10/1121:45 -
1 stop17h 00m
Deal found 13/8£438
Sat 12/908:55 -
1 stop11h 40m
Sat 19/915:15 -
1 stop12h 30m
Deal found 15/8£438
Thu 12/1115:00 -
2 stops22h 04m
Sun 15/1117:12 -
2 stops16h 43m
Deal found 13/8£442

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

Round-trip from

£407

One-way from

£325

Popular in

March

Cheapest in

February

Average price

£594

Good round-trip deal

£526 or less

Good one-way deal

£523 or less
Icelandair
  • Icelandair
  • 2/9-9/9
  • 2 total stops
  • 23h 50m total
  • Dublin to Washington, D.C.
19/9
  • 19/9
  • 3 total stops
  • 44h 30m total
  • Dublin to Washington, D.C.
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in August 2026
Price to beat on a round-trip flight from Dublin to Washington, D.C. (WAS).
Price to beat on a one-way flight from Dublin to Washington, D.C. (WAS).

Cheapflights Fare Finder

 
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 return flight
Fastest return journey

DublinWashington, D.C.

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

DUBIAD

Dublin

Tue 20/10

14:15-19:20

1 stop10h 05m

Washington, D.C. Dulles Intl

Tue 10/11

19:40-10:15

1 stop9h 35m

£422

DublinWashington, D.C.

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

DUBIAD

Dublin

Tue 20/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 10/11

12:35-09:00

2 stops15h 25m

£452

DublinWashington, D.C.

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

DUBIAD

Dublin

Sun 6/9

05:55-15:35

1 stop14h 40m

Washington, D.C. Dulles Intl

Tue 15/9

18:26-18:25

2 stops18h 59m

£453

DublinWashington, D.C.

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

DUBIAD

Dublin

Fri 23/10

05:55-15:35

1 stop14h 40m

Washington, D.C. Dulles Intl

Fri 6/11

06:00-07:45

1 stop20h 45m

£454

DublinWashington, D.C.

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

DUBIAD

Dublin

Wed 21/10

05:55-17:33

2 stops16h 38m

Washington, D.C. Dulles Intl

Wed 4/11

12:30-14:25

2 stops20h 55m

£455

DublinWashington, D.C.

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

DUBIAD

Dublin

Tue 20/10

08:55-15:35

1 stop11h 40m

Washington, D.C. Dulles Intl

Tue 3/11

15:04-07:45

1 stop11h 41m

£455

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Wed 30/9

13:25-22:59

2 stops14h 34m

Washington, D.C. Reagan-National

Wed 7/10

13:20-08:15

2 stops13h 55m

£457

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Fri 23/10

11:10-22:00

2 stops15h 50m

Washington, D.C. Reagan-National

Sun 1/11

17:05-08:45

1 stop10h 40m

£457

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Mon 28/9

13:25-22:59

2 stops14h 34m

Washington, D.C. Reagan-National

Mon 5/10

14:00-10:00

2 stops15h 00m

£458

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Thu 15/10

11:10-22:00

2 stops15h 50m

Washington, D.C. Reagan-National

Wed 21/10

14:00-08:45

2 stops13h 45m

£459

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 49 resultsSorted by cheapest first
1
2
3
...
5

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 return price

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 £387). Flying from Dublin to Washington, D.C. in August is currently the most expensive (average of £594). 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?

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.

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 for a return flight 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 £487 and £650 in September.
The cheapest return price found within the last 5 days was £407 on Icelandair (2 Sept–9 Sept).

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

Boston (BOS) – chosen by Cheapflights users on 33% of one-stop itineraries from Dublin to Washington, D.C. on Cheapflights.

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

Copenhagen (CPH) is the most affordable one-stop option, with an average return flight price of £314.

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

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 10h 05m.

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

Flights via London (LHR) offer the fastest connection on this route, with an average stopover time of 1h 50m.

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 past 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.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Aer Lingus,JetBlue, andIcelandair from Dublin to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.1

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.1

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.1

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Boarding

7.5

Food

6.7

Overall

7.3

Crew

8.1

Entertainment

7.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

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

    Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Dublin; the airport handles an average of 12 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 4 airlines have flights from the Dublin airport to Washington, D.C.. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.

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

    Airlines like Icelandair, Delta, and British Airways fly from Dublin to Washington, D.C. in about 10h 05m. The time it takes to get you to your destination can typically vary by up to 1h 40m. There are 3393 mi between Dublin and Washington, D.C.. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Cheapflights users have booked flights from Dublin to Washington, D.C. round-trip from £330. Another airline that can offer you cheap pricing is Aer Lingus. You may be able to fly from Dublin to Washington, D.C. for 32% less than the average price by searching for these airlines.

  • What are the most popular routes 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 £584, our data indicates the cheapest price to be £422. The most popular route (Dublin - Washington, D.C. Dulles Intl), is priced around £454.

  • 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 holiday 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 £387). Flying from Dublin to Washington, D.C. in August is currently the most expensive (average of £594). 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Dublin to Washington, D.C.

Top 4 airlines flying from Dublin to Washington, D.C.

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£320Average£414FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£330Average£694FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£337Average£453FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
IcelandairCheapest£368Average£470FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

How does Cheapflights help users find flights from Dublin to Washington, D.C.?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Dublin to Washington, D.C.. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Dublin to Washington, D.C.?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Dublin to Washington, D.C..

Can Cheapflights find flights from Dublin to Washington, D.C. with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Washington, D.C. flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Dublin to Washington, D.C. become cheaper?

Of course! You can now track prices for flights from Dublin to Washington, D.C. and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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.