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Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from $230

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 11/10. 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

Aer Lingus Logo
8:25 pm - 8:15 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
4:35 pm - 7:30 pmDUB-IAD
7h 55mnonstop
$401Aer Lingus
Find Deal
Mon, Sep 1 - Tue, Sep 9
Aer Lingus Logo
8:25 pm - 8:15 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
12:50 pm - 3:50 pmDUB-IAD
8h 00mnonstop
$402Aer Lingus
Find Deal
Mon, Sep 1 - Wed, Sep 10
TAP AIR PORTUGAL Logo
10:20 pm - 6:05 pmIAD-DUB
14h 45m1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 3:20 pmDUB-IAD
25h 30m1 stop
$417TAP AIR PORTUGAL
Find Deal
Sun, Sep 7 - Tue, Sep 16
TAP AIR PORTUGAL Logo
6:30 pm - 11:20 pmIAD-DUB
24h 50m1 stop
TAP AIR PORTUGAL Logo
4:55 pm - 3:15 pmDUB-IAD
27h 20m1 stop
$422TAP AIR PORTUGAL
Find Deal
Tue, Oct 28 - Wed, Nov 5
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
Icelandair Logo
11:30 am - 6:20 pmDUB-IAD
11h 50m1 stop
$428Icelandair
Find Deal
Fri, Nov 14 - Sat, Nov 22
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
Icelandair Logo
11:30 am - 6:20 pmDUB-IAD
11h 50m1 stop
$429Icelandair
Find Deal
Tue, Nov 18 - Sat, Nov 22
Air Canada Logo
9:35 am - 7:45 amIAD-DUB
17h 10m1 stop
Air Canada Logo
9:50 am - 9:37 amDUB-IAD
28h 47m1 stop
$432Air Canada
Find Deal
Sun, Aug 10 - Tue, Aug 26
United Airlines Logo
10:20 pm - 10:20 amIAD-DUB
7h 00mnonstop
United Airlines Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
$436United Airlines
Find Deal
Tue, Nov 11 - Wed, Nov 19
Air Canada Logo
7:05 pm - 7:10 amIAD-DUB
7h 05mnonstop
Air Canada Logo
9:50 am - 9:37 amDUB-IAD
28h 47m1 stop
$450Air Canada
Find Deal
Sun, Aug 10 - Tue, Aug 26
United Airlines Logo
5:15 pm - 9:45 amIAD-DUB
11h 30m1 stop
United Airlines Logo
9:00 am - 11:52 amDUB-IAD
31h 52m2 stops
$455United Airlines
Find Deal
Wed, Oct 22 - Wed, Nov 5

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
Sep 1
IAD8:25 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:15 amDublin
Sep 9
DUB4:35 pmDublin
7h 55m
IAD7:30 pmWashington, D.C. Dulles Intl
$401
Find similar
Aer Lingus
Sep 1
IAD8:25 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:15 amDublin
Sep 10
DUB12:50 pmDublin
8h 00m
IAD3:50 pmWashington, D.C. Dulles Intl
$402
Find similar
Aer Lingus
Sep 14
IAD5:20 pmWashington, D.C. Dulles Intl
6h 50m
DUB5:10 amDublin
Sep 18
DUB12:50 pmDublin
8h 00m
IAD3:50 pmWashington, D.C. Dulles Intl
$409
Find similar

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

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
Air Canada
Aug 10
IAD9:35 amWashington, D.C. Dulles Intl
17h 10m
1 stop
DUB7:45 amDublin
Aug 26
DUB9:50 amDublin
28h 47m
1 stop
IAD9:37 amWashington, D.C. Dulles Intl
$432
Find similar
Air Canada
Aug 10
IAD7:05 pmWashington, D.C. Dulles Intl
7h 05m
DUB7:10 amDublin
Aug 26
DUB9:50 amDublin
28h 47m
1 stop
IAD9:37 amWashington, D.C. Dulles Intl
$450
Find similar
Air Canada
Aug 10
IAD7:05 pmWashington, D.C. Dulles Intl
7h 05m
DUB7:10 amDublin
Aug 26
DUB12:30 pmDublin
8h 00m
IAD3:30 pmWashington, D.C. Dulles Intl
$458
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 July 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

Mon 9/1

8:25 pm-8:15 am

Nonstop6h 50m

Dublin

Tue 9/9

4:35 pm-7:30 pm

Nonstop7h 55m

$401

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 9/1

8:25 pm-8:15 am

Nonstop6h 50m

Dublin

Wed 9/10

12:50 pm-3:50 pm

Nonstop8h 00m

$402

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 9/7

10:20 pm-6:05 pm

1 stop14h 45m

Dublin

Tue 9/16

6:50 pm-3:20 pm

1 stop25h 30m

$417

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 10/28

6:30 pm-11:20 pm

1 stop24h 50m

Dublin

Wed 11/5

4:55 pm-3:15 pm

1 stop27h 20m

$422

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 11/14

7:40 pm-10:15 am

1 stop9h 35m

Dublin

Sat 11/22

11:30 am-6:20 pm

1 stop11h 50m

$428

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 11/18

7:40 pm-10:15 am

1 stop9h 35m

Dublin

Sat 11/22

11:30 am-6:20 pm

1 stop11h 50m

$429

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

9:35 am-7:45 am

1 stop17h 10m

Dublin

Tue 8/26

9:50 am-9:37 am

1 stop28h 47m

$432

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 11/11

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 11/19

12:05 pm-3:20 pm

Nonstop8h 15m

$436

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

7:05 pm-7:10 am

Nonstop7h 05m

Dublin

Tue 8/26

9:50 am-9:37 am

1 stop28h 47m

$450

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 10/22

5:15 pm-9:45 am

1 stop11h 30m

Dublin

Wed 11/5

9:00 am-11:52 am

2 stops31h 52m

$455

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 $585. 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 $600.

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 $895. 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 $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. 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 $710 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 $618 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 7% 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 July 2025, prices for Washington, D.C. Dulles Intl Airport to Dublin flights are approximately 9% 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

$230

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 $230. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Dublin found on momondo in the last 72 hours is $401.
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 $287Free CancellationRating
7.0
102 reviews
Search PLAY flights
Scandinavian AirlinesPriceFrom $330Free CancellationRating
7.3
1,457 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $424Free CancellationRating
7.0
520 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $428Free CancellationRating
7.1
1,933 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $472Free CancellationRating
7.1
1,192 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $484Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
United AirlinesPriceFrom $543Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
American AirlinesPriceFrom $643Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $654Free CancellationRating
6.8
7,275 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 $543 round-trip, up to an average price of $858. Our users have rated United Airlines at 7.4/10.

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

    Another popular option for Washington, D.C. Dulles Intl Airport to Dublin flights is American Airlines (7.2/10, 10,000 ratings). American Airlines flies from Washington, D.C. Dulles Intl Airport to Dublin around 13 times per week, with deals starting from $643 round-trip and rising to an average price of around $889.

Traveling to a place near Dublin?

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