Cheap flights from Washington, D.C. to Ireland from €149

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. to Ireland departing on 31/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Washington, D.C. to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
20:30 - 13:15
BWI
-
DUB
11h 45m
1 stop
Icelandair Logo
14:15 - 19:25
DUB
-
BWI
10h 10m
1 stop
€442Icelandair
Wed, 9 Sep - Thu, 17 Sep
Icelandair Logo
20:30 - 13:15
BWI
-
DUB
11h 45m
1 stop
Icelandair Logo
14:15 - 19:25
DUB
-
BWI
10h 10m
1 stop
€445Icelandair
Sun, 6 Sep - Thu, 17 Sep
Lufthansa Logo
22:20 - 22:15
IAD
-
DUB
18h 55m
2 stops
Lufthansa Logo
17:45 - 13:35
DUB
-
IAD
24h 50m
2 stops
€526Lufthansa
Tue, 21 Jul - Wed, 5 Aug
SWISS Logo
20:20 - 08:15
IAD
-
DUB
30h 55m
1 stop
SWISS Logo
18:35 - 16:45
DUB
-
IAD
27h 10m
1 stop
€528SWISS
Mon, 13 Jul - Fri, 21 Aug
Multiple Airlines Logo
19:15 - 07:20
IAD
-
DUB
7h 05mdirect
Multiple Airlines Logo
09:20 - 07:44
DUB
-
IAD
27h 24m
2 stops
€532Multiple Airlines
Thu, 30 Jul - Sat, 8 Aug
Aer Lingus Logo
06:59 - 05:10
DCA
-
DUB
17h 11m
1 stop
Aer Lingus Logo
13:20 - 19:59
DUB
-
DCA
11h 39m
1 stop
€534Aer Lingus
Thu, 3 Sep - Thu, 10 Sep
Lufthansa Logo
19:15 - 07:20
IAD
-
DUB
7h 05mdirect
Lufthansa Logo
08:50 - 11:50
DUB
-
IAD
8h 00mdirect
€535Lufthansa
Thu, 30 Jul - Sat, 8 Aug
Aer Lingus Logo
06:59 - 05:10
DCA
-
DUB
17h 11m
1 stop
Aer Lingus Logo
13:20 - 19:59
DUB
-
DCA
11h 39m
1 stop
€535Aer Lingus
Thu, 3 Sep - Thu, 10 Sep
Multiple Airlines Logo
06:59 - 05:10
DCA
-
DUB
17h 11m
1 stop
Multiple Airlines Logo
13:20 - 19:57
DUB
-
DCA
11h 37m
1 stop
€551Multiple Airlines
Wed, 2 Sep - Mon, 7 Sep
SWISS Logo
20:20 - 13:00
IAD
-
ORK
11h 40m
1 stop
SWISS Logo
13:45 - 16:45
ORK
-
IAD
32h 00m
1 stop
€619SWISS
Mon, 3 Aug - Tue, 18 Aug

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Aer Lingus flights from Washington, D.C. to Ireland

Our best Aer Lingus deals on Washington, D.C. to Ireland flight tickets
Aer Lingus
3 Sept
DCA06:59Washington, D.C. Reagan-National
17h 11m
1 stop
DUB05:10Dublin
10 Sept
DUB13:20Dublin
11h 39m
1 stop
DCA19:59Washington, D.C. Reagan-National
€534
Aer Lingus
3 Sept
DCA06:59Washington, D.C. Reagan-National
17h 11m
1 stop
DUB05:10Dublin
10 Sept
DUB13:20Dublin
11h 39m
1 stop
DCA19:59Washington, D.C. Reagan-National
€535
Aer Lingus
7 Sept
IAD17:15Washington, D.C. Dulles Intl
7h 00m
DUB05:15Dublin
18 Sept
DUB16:25Dublin
8h 00m
IAD19:25Washington, D.C. Dulles Intl
€550

British Airways flights from Washington, D.C. to Ireland

Our best British Airways deals on Washington, D.C. to Ireland flight tickets
British Airways
3 Sept
IAD19:15Washington, D.C. Dulles Intl
17h 40m
1 stop
DUB17:55Dublin
12 Sept
DUB08:35Dublin
16h 45m
1 stop
IAD20:20Washington, D.C. Dulles Intl
€560
British Airways
19 Aug
IAD21:30Washington, D.C. Dulles Intl
12h 05m
1 stop
DUB14:35Dublin
31 Aug
DUB20:30Dublin
24h 25m
1 stop
IAD15:55Washington, D.C. Dulles Intl
€564
British Airways
10 Jul
IAD22:25Washington, D.C. Dulles Intl
28h 20m
1 stop
DUB07:45Dublin
25 Aug
DUB12:50Dublin
11h 50m
1 stop
IAD19:40Washington, D.C. Dulles Intl
€591

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 13,528 searches. Data last updated 29 June 2026.
Use the filters below to find and compare flights from Washington, D.C. to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Wed 9/9

20:30-13:15

1 stop11h 45m

Dublin

Thu 17/9

14:15-19:25

1 stop10h 10m

€442

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sun 6/9

20:30-13:15

1 stop11h 45m

Dublin

Thu 17/9

14:15-19:25

1 stop10h 10m

€445

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 21/7

22:20-22:15

2 stops18h 55m

Dublin

Wed 5/8

17:45-13:35

2 stops24h 50m

€526

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 13/7

20:20-08:15

1 stop30h 55m

Dublin

Fri 21/8

18:35-16:45

1 stop27h 10m

€528

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 30/7

19:15-07:20

Nonstop7h 05m

Dublin

Sat 8/8

09:20-07:44

2 stops27h 24m

€532

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Thu 3/9

06:59-05:10

1 stop17h 11m

Dublin

Thu 10/9

13:20-19:59

1 stop11h 39m

€534
Fastest return journey

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 30/7

19:15-07:20

Nonstop7h 05m

Dublin

Sat 8/8

08:50-11:50

Nonstop8h 00m

€535

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Thu 3/9

06:59-05:10

1 stop17h 11m

Dublin

Thu 10/9

13:20-19:59

1 stop11h 39m

€535

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 2/9

06:59-05:10

1 stop17h 11m

Dublin

Mon 7/9

13:20-19:57

1 stop11h 37m

€551

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Mon 3/8

20:20-13:00

1 stop11h 40m

Cork

Tue 18/8

13:45-16:45

1 stop32h 00m

€619

Flights are sorted by cheapest return 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. 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?

The month of October is another great option to travel to Ireland, with average flight prices from Washington, D.C. averaging around €126.

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

In the evening is the cheapest time of day to fly from Washington, D.C. to Ireland when you can find flight prices for as low as €684. Flying to Ireland in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around €684.

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

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

How far in advance should I book a flight from Washington, D.C. to Ireland?

You are more likely to see cheaper flights to Ireland from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €663 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Washington, D.C. for as low as €584 on momondo.

What cabin class options are available on Washington, D.C. to Ireland flights?

There are 2 cabin classes available to choose from on Washington, D.C. 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. to Ireland flights?

You could potentially save up to 44% on your flight if you consider stops on a Washington, D.C. to Ireland flight.

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

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

Best price found

€701

Fastest flight time

6h 50m

Direct flights

Every day

Airports in Ireland

77 airports
The best flight deal from Washington, D.C. to Ireland found on momondo in the last 72 hours is €701
The fastest flight from Washington, D.C. to Ireland takes 6h 50m
Direct flights go from Washington, D.C. to Ireland every day.
There are 77 airports in Ireland. From Washington, D.C. there are direct flights to Dublin (DUB).

Frequently asked questions about flying from Washington, D.C. to Ireland

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

    Prices for flights from Washington, D.C. to Ireland are updated daily.

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

    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 stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Ireland.

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

    The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Washington, D.C. to Ireland?

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?

All flight searches from Washington, D.C. to Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Washington, D.C. to Ireland 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 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.

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1 adult
Wed 29/7
Wed 5/8

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