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Cheap flights from Washington, D.C. Dulles Intl Airport to Ireland from $271

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 Ireland departing on 12/1. 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 Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
9:00 pm - 8:50 amIAD-DUB
6h 50mnonstop
Aer Lingus Logo
12:15 pm - 3:35 pmDUB-IAD
8h 20mnonstop
$485Aer Lingus
Find Deal
Sun, Nov 16 - Tue, Nov 25
Multiple Airlines Logo
8:30 am - 8:10 amIAD-DUB
19h 40m1 stop
Multiple Airlines Logo
5:00 am - 3:50 pmDUB-IAD
15h 50m1 stop
$486Multiple Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
American Airlines Logo
9:45 pm - 5:45 pmIAD-DUB
15h 00m1 stop
American Airlines Logo
10:00 am - 7:55 pmDUB-IAD
14h 55m1 stop
$487American Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 12
American Airlines Logo
6:20 pm - 9:00 pmIAD-ORK
21h 40m1 stop
American Airlines Logo
7:40 am - 3:35 pmORK-IAD
12h 55m1 stop
$490American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
1:05 pm - 8:10 amIAD-DUB
14h 05m1 stop
United Airlines Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
$492United Airlines
Find Deal
Sun, Feb 1 - Tue, Feb 24
United Airlines Logo
5:38 pm - 9:55 amIAD-DUB
12h 17m1 stop
United Airlines Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
$493United Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Icelandair Logo
8:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
Icelandair Logo
2:15 pm - 7:20 pmDUB-IAD
10h 05m1 stop
$502Icelandair
Find Deal
Wed, Mar 25 - Tue, Mar 31
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
Icelandair Logo
11:30 am - 6:30 pmDUB-IAD
12h 00m1 stop
$514Icelandair
Find Deal
Thu, Dec 11 - Sun, Dec 21
British Airways Logo
9:45 pm - 8:45 pmIAD-DUB
18h 00m1 stop
British Airways Logo
8:40 pm - 3:35 pmDUB-IAD
23h 55m1 stop
$515British Airways
Find Deal
Tue, Dec 9 - Thu, Jan 8
British Airways Logo
9:45 pm - 9:00 pmIAD-ORK
18h 15m1 stop
British Airways Logo
11:55 am - 7:55 pmORK-IAD
13h 00m1 stop
$673British Airways
Find Deal
Tue, Dec 2 - Wed, Dec 10

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

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Ireland flight tickets
Aer Lingus
Nov 16
IAD9:00 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:50 amDublin
Nov 25
DUB12:15 pmDublin
8h 20m
IAD3:35 pmWashington, D.C. Dulles Intl
$485
Find similar
Aer Lingus
Oct 29
IAD10:00 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:50 amDublin
Nov 4
DUB4:20 pmDublin
8h 10m
IAD7:30 pmWashington, D.C. Dulles Intl
$513
Find similar
Aer Lingus
Dec 1
IAD5:05 pmWashington, D.C. Dulles Intl
6h 50m
DUB4:55 amDublin
Dec 8
DUB12:15 pmDublin
8h 20m
IAD3:35 pmWashington, D.C. Dulles Intl
$530
Find similar

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Ireland flight tickets
American Airlines
Nov 5
IAD9:45 pmWashington, D.C. Dulles Intl
15h 00m
1 stop
DUB5:45 pmDublin
Nov 12
DUB10:00 amDublin
14h 55m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
$487
Find similar
American Airlines
Dec 2
IAD6:20 pmWashington, D.C. Dulles Intl
21h 40m
1 stop
ORK9:00 pmCork
Dec 9
ORK7:40 amCork
12h 55m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$490
Find similar
American Airlines
Oct 31
IAD7:20 pmWashington, D.C. Dulles Intl
10h 55m
1 stop
DUB10:15 amDublin
Nov 7
DUB7:35 amDublin
13h 00m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$561
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Ireland 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 19, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ireland 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 11/16

9:00 pm-8:50 am

Nonstop6h 50m

Dublin

Tue 11/25

12:15 pm-3:35 pm

Nonstop8h 20m

$485

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 10/29

8:30 am-8:10 am

1 stop19h 40m

Dublin

Tue 11/4

5:00 am-3:50 pm

1 stop15h 50m

$486

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 11/5

9:45 pm-5:45 pm

1 stop15h 00m

Dublin

Wed 11/12

10:00 am-7:55 pm

1 stop14h 55m

$487

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Tue 12/2

6:20 pm-9:00 pm

1 stop21h 40m

Cork

Tue 12/9

7:40 am-3:35 pm

1 stop12h 55m

$490

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 2/1

1:05 pm-8:10 am

1 stop14h 05m

Dublin

Tue 2/24

12:05 pm-3:20 pm

Nonstop8h 15m

$492

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 10/28

5:38 pm-9:55 am

1 stop12h 17m

Dublin

Tue 11/4

12:05 pm-3:20 pm

Nonstop8h 15m

$493

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 3/25

8:40 pm-10:15 am

1 stop9h 35m

Dublin

Tue 3/31

2:15 pm-7:20 pm

1 stop10h 05m

$502

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 12/11

7:40 pm-10:15 am

1 stop9h 35m

Dublin

Sun 12/21

11:30 am-6:30 pm

1 stop12h 00m

$514

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 12/9

9:45 pm-8:45 pm

1 stop18h 00m

Dublin

Thu 1/8

8:40 pm-3:35 pm

1 stop23h 55m

$515

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Tue 12/2

9:45 pm-9:00 pm

1 stop18h 15m

Cork

Wed 12/10

11:55 am-7:55 pm

1 stop13h 00m

$673

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 Ireland from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Ireland

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 Ireland?

In general, January is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $573. If you aren’t able to travel to Ireland during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $600.

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

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $737. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. Dulles Intl Airport to Ireland on a Friday will generally be more expensive and average around $900. 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 Ireland?

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Ireland in the evening for as low as $792. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around $1,049.

What is the cheapest Washington, D.C. Dulles Intl to Ireland flight route?

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

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

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

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

You could potentially save up to 19% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Ireland flight.

Cheap Washington, D.C. Dulles Intl Airport to Ireland flight deals and tips

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

Best Price Found

$444

Fastest flight time

6h 50m

Direct flights

Every day

Airports in Ireland

1 airport
The best one-way flight to Ireland from Washington, D.C. Dulles Intl Airport in the past 72 hours is $444. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Ireland found on momondo in the last 72 hours is $617.
The fastest flight from Washington, D.C. Dulles Intl Airport to Ireland takes 6h 50m
Direct flights go from Washington, D.C. Dulles Intl Airport to Ireland every day.
There is 1 airport near Ireland: Dublin (DUB)
Search flight deals

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland 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 Ireland. 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 Ireland?

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Ireland with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $157Free CancellationRating
7.9
7,976 reviews
Search Delta flights
PLAYPriceFrom $316Free CancellationRating
7.0
103 reviews
Search PLAY flights
IcelandairPriceFrom $371Free CancellationRating
7.1
558 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $427Free CancellationRating
7.1
2,022 reviews
Search TAP AIR PORTUGAL flights
American AirlinesPriceFrom $435Free CancellationRating
7.2
11,024 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $456Free CancellationRating
7.4
1,533 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $469Free CancellationRating
7.2
1,347 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $484Free CancellationRating
6.7
7,461 reviews
Search British Airways flights
United AirlinesPriceFrom $529Free CancellationRating
7.4
8,994 reviews
Search United Airlines flights
KLMPriceFrom $643Free CancellationRating
7.7
1,402 reviews
Search KLM flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Ireland. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Ireland from Washington, D.C. with this policy.

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

momondo provides multiple filters to help you find the best flight to Ireland from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your Ireland trip

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