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Cheap flights from Washington, D.C. to Dublin from $235

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Dublin departing on 10/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Dublin (WAS-DUB)

Cheap round-trip flights

PLAY Logo
6:50 pm - 10:20 amBWI-DUB
10h 30m1 stop
PLAY Logo
11:35 am - 5:40 pmDUB-BWI
11h 05m1 stop
$292PLAY
Find Deal
sáb., sep. 20 - jue., sep. 25
PLAY Logo
6:50 pm - 10:10 amBWI-DUB
10h 20m1 stop
PLAY Logo
11:35 am - 5:40 pmDUB-BWI
11h 05m1 stop
$301PLAY
Find Deal
mié., sep. 17 - dom., sep. 21
PLAY Logo
6:50 pm - 10:10 amBWI-DUB
10h 20m1 stop
PLAY Logo
11:35 am - 5:40 pmDUB-BWI
11h 05m1 stop
$312PLAY
Find Deal
dom., sep. 7 - jue., sep. 18
Icelandair Logo
7:40 pm - 10:15 amBWI-DUB
9h 35m1 stop
Icelandair Logo
11:30 am - 6:40 pmDUB-BWI
12h 10m1 stop
$404Icelandair
Find Deal
dom., nov. 9 - mar., nov. 18
British Airways Logo
9:35 pm - 12:10 pmBWI-DUB
10h 35m1 stop
British Airways Logo
8:50 am - 6:45 pmDUB-BWI
14h 55m1 stop
$413British Airways
Find Deal
mar., oct. 28 - mar., nov. 4
Aer Lingus Logo
5:20 pm - 5:10 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
12:50 pm - 3:50 pmDUB-IAD
8h 00mnonstop
$454Aer Lingus
Find Deal
mié., sep. 3 - dom., sep. 21
United Airlines Logo
5:33 pm - 9:55 amIAD-DUB
11h 22m1 stop
United Airlines Logo
9:00 am - 11:52 amDUB-IAD
31h 52m2 stops
$455United Airlines
Find Deal
mié., nov. 19 - dom., nov. 23
United Airlines Logo
3:27 pm - 7:20 amDCA-DUB
10h 53m1 stop
United Airlines Logo
9:30 am - 5:25 pmDUB-DCA
12h 55m1 stop
$458United Airlines
Find Deal
dom., oct. 12 - vie., nov. 14
Aer Lingus Logo
5:05 pm - 4:55 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
4:20 pm - 7:30 pmDUB-IAD
8h 10mnonstop
$459Aer Lingus
Find Deal
mié., nov. 19 - dom., nov. 23
British Airways Logo
7:20 pm - 2:20 pmIAD-DUB
15h 00m1 stop
British Airways Logo
8:50 am - 3:35 pmDUB-IAD
11h 45m1 stop
$478British Airways
Find Deal
vie., oct. 31 - mar., nov. 4

United Airlines flights from Washington, D.C. to Dublin

Our best United Airlines deals on Washington, D.C. to Dublin flight tickets
United Airlines
Nov 19
IAD5:33 pmWashington, D.C. Dulles Intl
11h 22m
1 stop
DUB9:55 amDublin
Nov 23
DUB9:00 amDublin
31h 52m
2 stops
IAD11:52 amWashington, D.C. Dulles Intl
$455
Find similar
United Airlines
Oct 12
DCA3:27 pmWashington, D.C. Reagan-National
10h 53m
1 stop
DUB7:20 amDublin
Nov 14
DUB9:30 amDublin
12h 55m
1 stop
DCA5:25 pmWashington, D.C. Reagan-National
$458
Find similar
United Airlines
Oct 19
IAD7:05 pmWashington, D.C. Dulles Intl
7h 05m
DUB7:10 amDublin
Nov 1
DUB8:00 amDublin
11h 54m
1 stop
IAD3:54 pmWashington, D.C. Dulles Intl
$464
Find similar

JetBlue flights from Washington, D.C. to Dublin

Our best JetBlue deals on Washington, D.C. to Dublin flight tickets
JetBlue
Sep 1
DCA6:30 amWashington, D.C. Reagan-National
20h 50m
1 stop
DUB8:20 amDublin
Sep 10
DUB11:30 amDublin
16h 26m
1 stop
DCA10:56 pmWashington, D.C. Reagan-National
$467
Find similar
JetBlue
Sep 1
DCA6:30 amWashington, D.C. Reagan-National
20h 50m
1 stop
DUB8:20 amDublin
Sep 10
DUB11:30 amDublin
16h 26m
1 stop
DCA10:56 pmWashington, D.C. Reagan-National
$469
Find similar
JetBlue
Sep 7
DCA5:30 pmWashington, D.C. Reagan-National
9h 50m
1 stop
DUB8:20 amDublin
Sep 16
DUB11:30 amDublin
12h 52m
1 stop
DCA7:22 pmWashington, D.C. Reagan-National
$472
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated agosto 21, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

sáb. 9/20

6:50 pm-10:20 am

1 stop10h 30m

Dublin

jue. 9/25

11:35 am-5:40 pm

1 stop11h 05m

$292

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

mié. 9/17

6:50 pm-10:10 am

1 stop10h 20m

Dublin

dom. 9/21

11:35 am-5:40 pm

1 stop11h 05m

$301

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

dom. 9/7

6:50 pm-10:10 am

1 stop10h 20m

Dublin

jue. 9/18

11:35 am-5:40 pm

1 stop11h 05m

$312

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

dom. 11/9

7:40 pm-10:15 am

1 stop9h 35m

Dublin

mar. 11/18

11:30 am-6:40 pm

1 stop12h 10m

$404

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

mar. 10/28

9:35 pm-12:10 pm

1 stop10h 35m

Dublin

mar. 11/4

8:50 am-6:45 pm

1 stop14h 55m

$413

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

mié. 9/3

5:20 pm-5:10 am

Nonstop6h 50m

Dublin

dom. 9/21

12:50 pm-3:50 pm

Nonstop8h 00m

$454

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

mié. 11/19

5:33 pm-9:55 am

1 stop11h 22m

Dublin

dom. 11/23

9:00 am-11:52 am

2 stops31h 52m

$455

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

dom. 10/12

3:27 pm-7:20 am

1 stop10h 53m

Dublin

vie. 11/14

9:30 am-5:25 pm

1 stop12h 55m

$458

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

mié. 11/19

5:05 pm-4:55 am

Nonstop6h 50m

Dublin

dom. 11/23

4:20 pm-7:30 pm

Nonstop8h 10m

$459

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

vie. 10/31

7:20 pm-2:20 pm

1 stop15h 00m

Dublin

mar. 11/4

8:50 am-3:35 pm

1 stop11h 45m

$478

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Washington, D.C. to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Dublin?

In general, January is the cheapest month to fly from Washington, D.C. to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $528. If you’re not able to fly to Dublin in January, then February is your next best option. Flight prices from Washington, D.C. to Dublin during February average around $552.

What is the cheapest day to depart on your flight to Dublin?

The cheapest day to depart from Washington, D.C. to Dublin is on a Tuesday. Travelers who choose to depart for Dublin on a Tuesday will often find tickets for as low as $737. Flights from Washington, D.C. to Dublin on a Friday will generally be more expensive and average around $891. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Dublin?

In the afternoon is the cheapest time of day to fly from Washington, D.C. to Dublin when you can find flight prices for as low as $793. Flying to Dublin in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $929.

What is the cheapest Washington, D.C. to Dublin flight route?

Fly from Washington, D.C. Dulles Intl to Dublin for the best Washington, D.C. - Dublin flight prices

How far in advance should I book a flight to Dublin?

You are more likely to see cheaper flights to Dublin from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $707 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Washington, D.C. for as low as $586 on momondo.

What cabin class options are available on Washington, D.C. to Dublin flights?

There are 3 cabin classes available to choose from on Washington, D.C. to Dublin flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Dublin flights?

You could potentially save up to 54% on your flight if you consider stops on a Washington, D.C. to Dublin flight.

How have Washington, D.C. to Dublin flight prices changed over time?

As of August 2025, prices for Washington, D.C. to Dublin flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Dublin according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Dublin (WAS to DUB) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Dublin

Best Price Found

$426

Fastest flight time

6h 50m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from Washington, D.C. in the past 72 hours is $426. The best round-trip flight deal from Washington, D.C. to Dublin found on momondo in the last 72 hours is $566.
The fastest flight from Washington, D.C. to Dublin takes 6h 50m
Direct flights go from Washington, D.C. to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

  • How far is Washington, D.C. to Dublin by plane?

    The straight-line distance from Washington, D.C. to Dublin is 3379.2 mi. 6h 50m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. to Dublin Airport?

    Prices for flights from Washington, D.C. to Dublin Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to Dublin Airport?

  • How old do you have to be to fly from Washington, D.C. to Dublin Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The required travel and health documents for your Dublin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dublin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Washington, D.C. to Dublin?

  • What is the most popular airline from Washington, D.C. to Dublin?

Best airlines flying from Washington, D.C. to Dublin

Compare and see reviews for airlines that fly from Washington, D.C. to Dublin with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $281Free CancellationRating
7.0
103 reviews
Search PLAY flights
Scandinavian AirlinesPriceFrom $330Free CancellationRating
7.4
1,471 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $424Free CancellationRating
7.0
529 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $428Free CancellationRating
7.1
1,959 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $457Free CancellationRating
7.1
1,228 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $457Free CancellationRating
6.7
7,291 reviews
Search British Airways flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
DeltaPriceFrom $496Free CancellationRating
7.9
7,981 reviews
Search Delta flights
JetBluePriceFrom $507Free CancellationRating
7.2
2,916 reviews
Search JetBlue flights
American AirlinesPriceFrom $537Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • United Airlines Flights From Washington, D.C. to Dublin

    United Airlines flight deals from Washington, D.C. to Dublin start from $496 round-trip. Over the 14 United Airlines flights for this route in a normal week, average airfare is usually $809 round-trip - but some users have found much cheaper deals with momondo.

  • American Airlines Flights From Washington, D.C. to Dublin

    The best American Airlines deal for Washington, D.C. to Dublin flight tickets found on momondo in the last 72 hours was $537, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $893 round-trip. American Airlines operates 13 flights out of Washington, D.C. into Dublin in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Athlone
Dundalk
Malahide
Maynooth
Leixlip
Bray
Castleknock
Kildare
Naas
Mullingar
Arklow
Cavan
Enniscorthy
Wicklow
Drogheda
Thurles
Slane

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Dublin?

Finding the right flight to Dublin from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Dublin with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Dublin flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Dublin?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Dublin from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Dublin right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Dublin trip

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