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Cheap flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Dublin departing on 10/11. 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. Dulles Intl Airport to Dublin

Cheap round-trip flights

Logo
10:55 pm - 5:10 pmIAD-DUB
13h 15m1 stop
Logo
9:00 am - 3:51 pmDUB-IAD
11h 51m1 stop
$455
Find Deal
Wed, Nov 26 - Wed, Dec 3
United Airlines Logo
10:20 pm - 10:20 amIAD-DUB
7h 00mnonstop
United Airlines Logo
9:00 am - 3:51 pmDUB-IAD
11h 51m1 stop
$456United Airlines
Find Deal
Tue, Nov 4 - Fri, Nov 14
Icelandair Logo
8:30 pm - 1:15 pmIAD-DUB
11h 45m1 stop
Icelandair Logo
11:30 am - 7:30 pmDUB-IAD
12h 00m1 stop
$458Icelandair
Find Deal
Fri, Oct 24 - Wed, Oct 29
United Airlines Logo
6:30 am - 6:10 amIAD-DUB
19h 40m2 stops
United Airlines Logo
9:30 am - 4:25 pmDUB-IAD
11h 55m1 stop
$459United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Aer Lingus Logo
5:20 pm - 5:10 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
12:15 pm - 3:35 pmDUB-IAD
8h 20mnonstop
$466Aer Lingus
Find Deal
Sun, Oct 12 - Fri, 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
$468Aer Lingus
Find Deal
Sun, Nov 2 - Thu, Nov 6
Lufthansa Logo
10:55 pm - 5:10 pmIAD-DUB
13h 15m1 stop
Lufthansa Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
$471Lufthansa
Find Deal
Sun, Nov 2 - Tue, Nov 11
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
Icelandair Logo
11:30 am - 6:30 pmDUB-IAD
12h 00m1 stop
$473Icelandair
Find Deal
Mon, Dec 8 - Mon, Dec 15
Lufthansa Logo
10:55 pm - 5:10 pmIAD-DUB
13h 15m1 stop
Lufthansa Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
$476Lufthansa
Find Deal
Wed, Nov 12 - Tue, Nov 18
British Airways Logo
6:20 pm - 12:05 pmIAD-DUB
12h 45m1 stop
British Airways Logo
8:50 am - 3:35 pmDUB-IAD
11h 45m1 stop
$496British Airways
Find Deal
Fri, Nov 7 - Tue, Nov 11

Lufthansa flights from Washington, D.C. Dulles Intl Airport to Dublin

Our best Lufthansa deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
Lufthansa
Nov 2
IAD10:55 pmWashington, D.C. Dulles Intl
13h 15m
1 stop
DUB5:10 pmDublin
Nov 11
DUB12:05 pmDublin
8h 15m
IAD3:20 pmWashington, D.C. Dulles Intl
$471
Find similar
Lufthansa
Nov 12
IAD10:55 pmWashington, D.C. Dulles Intl
13h 15m
1 stop
DUB5:10 pmDublin
Nov 18
DUB12:05 pmDublin
8h 15m
IAD3:20 pmWashington, D.C. Dulles Intl
$476
Find similar
Lufthansa
Nov 6
IAD10:55 pmWashington, D.C. Dulles Intl
13h 15m
1 stop
DUB5:10 pmDublin
Nov 11
DUB5:00 amDublin
15h 50m
1 stop
IAD3:50 pmWashington, D.C. Dulles Intl
$501
Find similar

Icelandair flights from Washington, D.C. Dulles Intl Airport to Dublin

Our best Icelandair deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
Icelandair
Oct 24
IAD8:30 pmWashington, D.C. Dulles Intl
11h 45m
1 stop
DUB1:15 pmDublin
Oct 29
DUB11:30 amDublin
12h 00m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$458
Find similar
Icelandair
Dec 8
IAD7:40 pmWashington, D.C. Dulles Intl
9h 35m
1 stop
DUB10:15 amDublin
Dec 15
DUB11:30 amDublin
12h 00m
1 stop
IAD6:30 pmWashington, D.C. Dulles Intl
$473
Find similar
Icelandair
Oct 27
IAD8:40 pmWashington, D.C. Dulles Intl
9h 35m
1 stop
DUB10:15 amDublin
Oct 31
DUB11:30 amDublin
12h 00m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$495
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 September 15, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 11/26

10:55 pm-5:10 pm

1 stop13h 15m

Dublin

Wed 12/3

9:00 am-3:51 pm

1 stop11h 51m

$455

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 11/4

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Fri 11/14

9:00 am-3:51 pm

1 stop11h 51m

$456

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 10/24

8:30 pm-1:15 pm

1 stop11h 45m

Dublin

Wed 10/29

11:30 am-7:30 pm

1 stop12h 00m

$458

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 10/28

6:30 am-6:10 am

2 stops19h 40m

Dublin

Tue 11/4

9:30 am-4:25 pm

1 stop11h 55m

$459

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 10/12

5:20 pm-5:10 am

Nonstop6h 50m

Dublin

Fri 11/14

12:15 pm-3:35 pm

Nonstop8h 20m

$466

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 11/2

5:05 pm-4:55 am

Nonstop6h 50m

Dublin

Thu 11/6

4:20 pm-7:30 pm

Nonstop8h 10m

$468

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 11/2

10:55 pm-5:10 pm

1 stop13h 15m

Dublin

Tue 11/11

12:05 pm-3:20 pm

Nonstop8h 15m

$471

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 12/8

7:40 pm-10:15 am

1 stop9h 35m

Dublin

Mon 12/15

11:30 am-6:30 pm

1 stop12h 00m

$473

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 11/12

10:55 pm-5:10 pm

1 stop13h 15m

Dublin

Tue 11/18

12:05 pm-3:20 pm

Nonstop8h 15m

$476

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 11/7

6:20 pm-12:05 pm

1 stop12h 45m

Dublin

Tue 11/11

8:50 am-3:35 pm

1 stop11h 45m

$496

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. Dulles Intl Airport 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, February is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $580. If you’re not able to fly to Dublin in February, then January is your next best option. Flight prices from Washington, D.C. Dulles Intl Airport to Dublin during January average around $588.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Dublin is on a Tuesday. Travelers who choose to depart for Dublin on a Tuesday will often find tickets for as low as $739. Flights from Washington, D.C. Dulles Intl Airport to Dublin on a Friday will generally be more expensive and average around $894. 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. Dulles Intl Airport to Dublin when you can find flight prices for as low as $791. 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. Dulles Intl to Dublin flight route?

Fly from Washington, D.C. Dulles Intl to Dublin for the best Washington, D.C. Dulles Intl - 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. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $702 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. Dulles Intl Airport for as low as $581 on momondo.

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

There are 3 cabin classes available to choose from on Washington, D.C. Dulles Intl 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. Dulles Intl Airport to Dublin flights?

You could potentially save up to 2% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Dublin flight.

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

As of September 2025, prices for Washington, D.C. Dulles Intl Airport to Dublin flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Dublin (IAD to DUB) flight deals and tips

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

Best Price Found

$465

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. Dulles Intl Airport in the past 72 hours is $465. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Dublin found on momondo in the last 72 hours is $591.
The fastest flight from Washington, D.C. Dulles Intl Airport to Dublin takes 6h 50m
Direct flights go from Washington, D.C. Dulles Intl Airport to Dublin every day.
There is 1 airport near Dublin: Dublin (DUB)
Search flight deals

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

    There are 3393.9 mi between Washington, D.C. Dulles Intl and Dublin. Flights usually cover this in 6h 50m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Dublin Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Dublin Airport.

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

    The travel and health documents you'll need for your trip to Dublin Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Washington, D.C. Dulles Intl Airport to Dublin

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Dublin with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $282Free CancellationRating
7.0
103 reviews
Search PLAY flights
IcelandairPriceFrom $409Free CancellationRating
7.0
544 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $427Free CancellationRating
7.1
1,975 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $469Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
Scandinavian AirlinesPriceFrom $472Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $484Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
United AirlinesPriceFrom $540Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
American AirlinesPriceFrom $601Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $661Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights

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

    United Airlines is one of the most popular airlines flying from Washington, D.C. Dulles Intl Airport to Dublin, operating 14 flights/week on average for this route. A good United Airlines flight deal for Washington, D.C. Dulles Intl Airport to Dublin starts from $540 round-trip, up to an average price of $859. Our users have rated United Airlines at 7.4/10.

  • Aer Lingus Flights From Washington, D.C. Dulles Intl Airport to Dublin

    Another popular option for Washington, D.C. Dulles Intl Airport to Dublin flights is Aer Lingus (7.2/10, 1,270 ratings). Aer Lingus flies from Washington, D.C. Dulles Intl Airport to Dublin around 9 times per week, with deals starting from $469 round-trip and rising to an average price of around $680.

Traveling to a place near Dublin?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Dublin. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Dublin from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Washington, D.C. to Dublin flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Washington, D.C. and alert you when they change.

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