Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from $270

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 3/24. 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

Enter your travel dates to find the best prices.
American Airlines Logo
6:20 pm - 5:45 pmIAD-DUB
18h 25m1 stop
American Airlines Logo
6:40 am - 3:35 pmDUB-IAD
13h 55m1 stop
$486American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
5:19 pm - 9:55 amIAD-DUB
11h 36m1 stop
United Airlines Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
$487United Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 17
Aer Lingus Logo
9:00 pm - 8:50 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
12:15 pm - 3:35 pmDUB-IAD
8h 20mnonstop
$488Aer Lingus
Find Deal
Wed, Nov 19 - Wed, Nov 26
Icelandair Logo
8:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
Icelandair Logo
12:15 pm - 7:20 pmDUB-IAD
12h 05m1 stop
$494Icelandair
Find Deal
Tue, Mar 17 - Sun, Mar 29
Lufthansa Logo
6:00 pm - 11:00 amIAD-DUB
12h 00m1 stop
Lufthansa Logo
10:50 am - 8:05 pmDUB-IAD
14h 15m1 stop
$497Lufthansa
Find Deal
Wed, Dec 3 - Wed, Dec 17
Icelandair Logo
8:30 pm - 11:05 amIAD-DUB
9h 35m1 stop
Icelandair Logo
2:15 pm - 7:20 pmDUB-IAD
10h 05m1 stop
$498Icelandair
Find Deal
Thu, Apr 2 - Mon, Apr 6
Scandinavian Airlines Logo
12:30 pm - 11:45 amIAD-DUB
18h 15m2 stops
Scandinavian Airlines Logo
7:05 pm - 7:12 pmDUB-IAD
29h 07m2 stops
$502Scandinavian Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
Lufthansa Logo
10:55 pm - 5:10 pmIAD-DUB
13h 15m1 stop
Lufthansa Logo
5:55 pm - 8:05 pmDUB-IAD
31h 10m1 stop
$504Lufthansa
Find Deal
Thu, Nov 13 - Tue, Nov 18
Scandinavian Airlines Logo
9:30 pm - 6:20 pmIAD-DUB
16h 50m1 stop
Scandinavian Airlines Logo
10:10 am - 7:50 pmDUB-IAD
13h 40m1 stop
$509Scandinavian Airlines
Find Deal
Wed, Mar 11 - Sat, Mar 14
Aer Lingus Logo
5:05 pm - 4:55 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
12:15 pm - 3:35 pmDUB-IAD
8h 20mnonstop
$513Aer Lingus
Find Deal
Wed, Jan 7 - Thu, Jan 22

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
American Airlines
Nov 19
IAD6:20 pmWashington, D.C. Dulles Intl
18h 25m
1 stop
DUB5:45 pmDublin
Nov 26
DUB6:40 amDublin
13h 55m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
American Airlines
Nov 19
IAD6:20 pmWashington, D.C. Dulles Intl
10h 55m
1 stop
DUB10:15 amDublin
Nov 27
DUB7:35 amDublin
17h 20m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl

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

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
Aer Lingus
Nov 19
IAD9:00 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:50 amDublin
Nov 26
DUB12:15 pmDublin
8h 20m
IAD3:35 pmWashington, D.C. Dulles Intl
Aer Lingus
Jan 7
IAD5:05 pmWashington, D.C. Dulles Intl
6h 50m
DUB4:55 amDublin
Jan 22
DUB12:15 pmDublin
8h 20m
IAD3:35 pmWashington, D.C. Dulles Intl
Aer Lingus
Nov 13
IAD5:05 pmWashington, D.C. Dulles Intl
6h 50m
DUB4:55 amDublin
Nov 26
DUB4:20 pmDublin
8h 10m
IAD7:30 pmWashington, D.C. Dulles Intl

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 October 31, 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 11/19

6:20 pm-5:45 pm

1 stop18h 25m

Dublin

Wed 11/26

6:40 am-3:35 pm

1 stop13h 55m

$486

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 12/10

5:19 pm-9:55 am

1 stop11h 36m

Dublin

Wed 12/17

12:05 pm-3:20 pm

Nonstop8h 15m

$487

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 11/19

9:00 pm-8:50 am

Nonstop6h 50m

Dublin

Wed 11/26

12:15 pm-3:35 pm

Nonstop8h 20m

$488

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 3/17

8:40 pm-10:15 am

1 stop9h 35m

Dublin

Sun 3/29

12:15 pm-7:20 pm

1 stop12h 05m

$494

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 12/3

6:00 pm-11:00 am

1 stop12h 00m

Dublin

Wed 12/17

10:50 am-8:05 pm

1 stop14h 15m

$497

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 4/2

8:30 pm-11:05 am

1 stop9h 35m

Dublin

Mon 4/6

2:15 pm-7:20 pm

1 stop10h 05m

$498

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 2/19

12:30 pm-11:45 am

2 stops18h 15m

Dublin

Mon 2/23

7:05 pm-7:12 pm

2 stops29h 07m

$502

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 11/13

10:55 pm-5:10 pm

1 stop13h 15m

Dublin

Tue 11/18

5:55 pm-8:05 pm

1 stop31h 10m

$504

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 3/11

9:30 pm-6:20 pm

1 stop16h 50m

Dublin

Sat 3/14

10:10 am-7:50 pm

1 stop13h 40m

$509

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 1/7

5:05 pm-4:55 am

Nonstop6h 50m

Dublin

Thu 1/22

12:15 pm-3:35 pm

Nonstop8h 20m

$513

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, January 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 $582. If you’re not able to fly to Dublin in January, then February is your next best option. Flight prices from Washington, D.C. Dulles Intl Airport to Dublin during February average around $599.

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 $737. Flights from Washington, D.C. Dulles Intl Airport to Dublin on a Friday will generally be more expensive and average around $896. 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 evening 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 $792. Flying to Dublin in the evening 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 $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. Dulles Intl Airport for as low as $595 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 19% 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 October 2025, prices for Washington, D.C. Dulles Intl Airport 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. 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

$413

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 $413. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Dublin found on momondo in the last 72 hours is $635.
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)
  • 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 $316Free CancellationRating
7.0
103 reviews
Search PLAY flights
IcelandairPriceFrom $371Free CancellationRating
7.1
562 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $427Free CancellationRating
7.1
2,041 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $456Free CancellationRating
7.4
1,550 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $469Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $484Free CancellationRating
6.7
7,489 reviews
Search British Airways flights
United AirlinesPriceFrom $527Free CancellationRating
7.4
8,995 reviews
Search United Airlines flights
American AirlinesPriceFrom $601Free CancellationRating
7.2
11,033 reviews
Search American Airlines flights
LufthansaPriceFrom $696Free CancellationRating
6.8
7,543 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 3 flights/week on average for this route. A good United Airlines flight deal for Washington, D.C. Dulles Intl Airport to Dublin starts from $527 round-trip, up to an average price of $836. 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, 1,365 ratings). Aer Lingus flies from Washington, D.C. Dulles Intl Airport to Dublin around 8 times per week, with deals starting from $469 round-trip and rising to an average price of around $682.

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
Mullingar
Naas
Arklow
Castleknock
Cavan
Drogheda
Wicklow
Leixlip
Kildare
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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1 adult
Sun 11/30
Sun 12/7

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