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Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from $257

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 3/21. 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.
TAP AIR PORTUGAL Logo
10:35 pm - 6:05 pm
IAD
-
DUB
14h 30m
1 stop
TAP AIR PORTUGAL Logo
10:45 am - 3:05 pm
DUB
-
IAD
33h 20m
1 stop
$444TAP AIR PORTUGAL
Sun, Apr 26 - Wed, May 6
TAP AIR PORTUGAL Logo
10:35 pm - 6:05 pm
IAD
-
DUB
14h 30m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 3:05 pm
DUB
-
IAD
25h 15m
1 stop
$456TAP AIR PORTUGAL
Mon, Apr 27 - Mon, May 4
TAP AIR PORTUGAL Logo
10:35 pm - 6:05 pm
IAD
-
DUB
14h 30m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 3:05 pm
DUB
-
IAD
25h 15m
1 stop
$461TAP AIR PORTUGAL
Sun, Apr 26 - Tue, May 5
TAP AIR PORTUGAL Logo
10:35 pm - 6:05 pm
IAD
-
DUB
14h 30m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 3:05 pm
DUB
-
IAD
25h 15m
1 stop
$462TAP AIR PORTUGAL
Sun, Apr 26 - Mon, May 4
TAP AIR PORTUGAL Logo
10:35 pm - 6:05 pm
IAD
-
DUB
14h 30m
1 stop
TAP AIR PORTUGAL Logo
10:45 am - 3:05 pm
DUB
-
IAD
33h 20m
1 stop
$463TAP AIR PORTUGAL
Sun, Apr 12 - Wed, Apr 22
Scandinavian Airlines Logo
8:20 pm - 6:20 pm
IAD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
10:15 am - 4:50 pm
DUB
-
IAD
11h 35m
1 stop
$467Scandinavian Airlines
Mon, Apr 20 - Sat, Apr 25
Scandinavian Airlines Logo
8:20 pm - 6:20 pm
IAD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
10:15 am - 4:50 pm
DUB
-
IAD
11h 35m
1 stop
$468Scandinavian Airlines
Mon, Apr 13 - Sat, Apr 18
TAP AIR PORTUGAL Logo
10:35 pm - 12:05 am
IAD
-
DUB
20h 30m
1 stop
TAP AIR PORTUGAL Logo
10:45 am - 3:05 pm
DUB
-
IAD
33h 20m
1 stop
$470TAP AIR PORTUGAL
Sat, Apr 18 - Wed, Apr 29
Scandinavian Airlines Logo
8:20 pm - 6:20 pm
IAD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
10:15 am - 4:50 pm
DUB
-
IAD
11h 35m
1 stop
$473Scandinavian Airlines
Thu, Apr 9 - Sat, Apr 18
Scandinavian Airlines Logo
8:20 pm - 6:20 pm
IAD
-
DUB
17h 00m
1 stop
Scandinavian Airlines Logo
11:10 am - 4:50 pm
DUB
-
IAD
34h 40m
2 stops
$475Scandinavian Airlines
Fri, Apr 24 - Fri, May 1

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

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
Scandinavian Airlines
Apr 20
IAD8:20 pmWashington, D.C. Dulles Intl
17h 00m
1 stop
DUB6:20 pmDublin
Apr 25
DUB10:15 amDublin
11h 35m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
$467
Scandinavian Airlines
Apr 13
IAD8:20 pmWashington, D.C. Dulles Intl
17h 00m
1 stop
DUB6:20 pmDublin
Apr 18
DUB10:15 amDublin
11h 35m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
$468
Scandinavian Airlines
Apr 9
IAD8:20 pmWashington, D.C. Dulles Intl
17h 00m
1 stop
DUB6:20 pmDublin
Apr 18
DUB10:15 amDublin
11h 35m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
$473

TAP AIR PORTUGAL flights from Washington, D.C. Dulles Intl Airport to Dublin

Our best TAP AIR PORTUGAL deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
TAP AIR PORTUGAL
Apr 26
IAD10:35 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
DUB6:05 pmDublin
May 6
DUB10:45 amDublin
33h 20m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
$444
TAP AIR PORTUGAL
Feb 4
IAD10:30 pmWashington, D.C. Dulles Intl
19h 50m
1 stop
DUB11:20 pmDublin
Feb 11
DUB4:55 pmDublin
27h 20m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
$447
TAP AIR PORTUGAL
Apr 27
IAD10:35 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
DUB6:05 pmDublin
May 4
DUB6:50 pmDublin
25h 15m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
$456

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 January 29, 2026.
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

Sun 4/26

10:35 pm-6:05 pm

1 stop14h 30m

Dublin

Wed 5/6

10:45 am-3:05 pm

1 stop33h 20m

$444

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 4/27

10:35 pm-6:05 pm

1 stop14h 30m

Dublin

Mon 5/4

6:50 pm-3:05 pm

1 stop25h 15m

$456

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 4/26

10:35 pm-6:05 pm

1 stop14h 30m

Dublin

Tue 5/5

6:50 pm-3:05 pm

1 stop25h 15m

$461

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 4/26

10:35 pm-6:05 pm

1 stop14h 30m

Dublin

Mon 5/4

6:50 pm-3:05 pm

1 stop25h 15m

$462

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 4/12

10:35 pm-6:05 pm

1 stop14h 30m

Dublin

Wed 4/22

10:45 am-3:05 pm

1 stop33h 20m

$463

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 4/20

8:20 pm-6:20 pm

1 stop17h 00m

Dublin

Sat 4/25

10:15 am-4:50 pm

1 stop11h 35m

$467

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 4/13

8:20 pm-6:20 pm

1 stop17h 00m

Dublin

Sat 4/18

10:15 am-4:50 pm

1 stop11h 35m

$468

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 4/18

10:35 pm-12:05 am

1 stop20h 30m

Dublin

Wed 4/29

10:45 am-3:05 pm

1 stop33h 20m

$470

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 4/9

8:20 pm-6:20 pm

1 stop17h 00m

Dublin

Sat 4/18

10:15 am-4:50 pm

1 stop11h 35m

$473

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 4/24

8:20 pm-6:20 pm

1 stop17h 00m

Dublin

Fri 5/1

11:10 am-4:50 pm

2 stops34h 40m

$475

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 $563. 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 $594.

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 $735. Flights from Washington, D.C. Dulles Intl Airport to Dublin on a Friday will generally be more expensive and average around $885. 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 $777. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $800.

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 $609 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?

No. A direct flight is the cheapest option for a flight between Washington, D.C. Dulles Intl Airport to Dublin.

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

As of January 2026, prices for Washington, D.C. Dulles Intl Airport to Dublin flights are approximately 7% 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

$395

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 $395. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Dublin found on momondo in the last 72 hours is $587.
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 in Dublin. From Washington, D.C. Dulles Intl Airport there are direct flights to 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 $367Free CancellationRating
7.0
103 reviews
Search PLAY flights
IcelandairPriceFrom $371Free CancellationRating
7.1
606 reviews
Search Icelandair flights
IberiaPriceFrom $386Free CancellationRating
7.0
3,099 reviews
Search Iberia flights
TAP AIR PORTUGALPriceFrom $428Free CancellationRating
7.1
2,130 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $445Free CancellationRating
7.2
11,206 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $456Free CancellationRating
7.3
1,674 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $467Free CancellationRating
7.2
1,443 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $483Free CancellationRating
6.7
7,705 reviews
Search British Airways flights
United AirlinesPriceFrom $524Free CancellationRating
7.4
9,216 reviews
Search United Airlines flights
LufthansaPriceFrom $590Free CancellationRating
6.8
7,752 reviews
Search Lufthansa flights

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

    American Airlines is one of the most popular airlines flying from Washington, D.C. Dulles Intl Airport to Dublin, operating 7 flights/week on average for this route. A good American Airlines flight deal for Washington, D.C. Dulles Intl Airport to Dublin starts from $445 round-trip, up to an average price of $816. Our users have rated American Airlines at 7.2/10.

  • 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, 1,443 ratings). Aer Lingus flies from Washington, D.C. Dulles Intl Airport to Dublin around 7 times per week, with deals starting from $467 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
Swords
Athlone
Dundalk
Malahide
Mullingar
Bray
Kildare
Wicklow
Drogheda
Portmarnock
Arklow
Castleknock
Naas
Leixlip
Carlingford
Cavan
Maynooth
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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