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Cheap flights from Washington, D.C. Reagan-National Airport to Ireland from $332

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. Reagan-National Airport to Ireland departing on 11/4. 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. Reagan-National Airport to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 pm - 9:55 amDCA-DUB
10h 55m1 stop
United Airlines Logo
9:00 am - 6:05 pmDUB-DCA
14h 05m1 stop
$483United Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
United Airlines Logo
6:30 am - 8:10 amDCA-DUB
20h 40m1 stop
United Airlines Logo
9:00 am - 7:45 pmDUB-DCA
15h 45m1 stop
$487United Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
Multiple Airlines Logo
11:05 am - 7:10 amDCA-DUB
15h 05m2 stops
Multiple Airlines Logo
5:00 am - 3:31 pmDUB-DCA
15h 31m2 stops
$488Multiple Airlines
Find Deal
Sun, Nov 16 - Tue, Nov 25
Air Canada Logo
12:55 pm - 7:10 amDCA-DUB
13h 15m2 stops
Air Canada Logo
9:00 am - 9:56 pmDUB-DCA
17h 56m2 stops
$489Air Canada
Find Deal
Tue, Dec 2 - Fri, Dec 12
Multiple Airlines Logo
9:40 am - 7:10 amDCA-DUB
16h 30m1 stop
Multiple Airlines Logo
5:00 am - 3:31 pmDUB-DCA
15h 31m2 stops
$491Multiple Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Delta Logo
11:10 am - 8:45 amDCA-DUB
16h 35m1 stop
Delta Logo
5:55 am - 5:05 pmDUB-DCA
16h 10m2 stops
$501Delta
Find Deal
Wed, Nov 26 - Wed, Dec 3
Delta Logo
1:15 pm - 9:20 amDCA-DUB
15h 05m1 stop
Delta Logo
10:45 am - 10:56 pmDUB-DCA
17h 11m1 stop
$502Delta
Find Deal
Tue, Nov 4 - Tue, Nov 11
American Airlines Logo
5:45 pm - 11:30 amDCA-SNN
12h 45m2 stops
American Airlines Logo
7:50 am - 9:30 pmSNN-DCA
18h 40m2 stops
$504American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
American Airlines Logo
1:44 pm - 11:10 amDCA-ORK
16h 26m2 stops
American Airlines Logo
7:40 am - 5:55 pmORK-DCA
15h 15m2 stops
$505American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
Air Canada Logo
8:40 pm - 7:10 amDCA-DUB
29h 30m1 stop
Air Canada Logo
9:00 am - 10:35 pmDUB-DCA
18h 35m1 stop
$539Air Canada
Find Deal
Mon, Dec 29 - Sat, Jan 10

United Airlines flights from Washington, D.C. Reagan-National Airport to Ireland

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Ireland flight tickets
United Airlines
Dec 3
DCA6:00 pmWashington, D.C. Reagan-National
10h 55m
1 stop
DUB9:55 amDublin
Dec 10
DUB9:00 amDublin
14h 05m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National
$483
Find similar
United Airlines
Oct 27
DCA10:30 amWashington, D.C. Reagan-National
17h 40m
1 stop
DUB8:10 amDublin
Nov 12
DUB9:00 amDublin
14h 05m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National
$485
Find similar
United Airlines
Nov 26
DCA6:30 amWashington, D.C. Reagan-National
20h 40m
1 stop
DUB8:10 amDublin
Dec 3
DUB9:00 amDublin
15h 45m
1 stop
DCA7:45 pmWashington, D.C. Reagan-National
$487
Find similar

Air Canada flights from Washington, D.C. Reagan-National Airport to Ireland

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Ireland flight tickets
Air Canada
Dec 2
DCA12:55 pmWashington, D.C. Reagan-National
13h 15m
2 stops
DUB7:10 amDublin
Dec 12
DUB9:00 amDublin
17h 56m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
$489
Find similar
Air Canada
Dec 29
DCA8:40 pmWashington, D.C. Reagan-National
29h 30m
1 stop
DUB7:10 amDublin
Jan 10
DUB9:00 amDublin
18h 35m
1 stop
DCA10:35 pmWashington, D.C. Reagan-National
$539
Find similar
Air Canada
Oct 26
DCA9:40 amWashington, D.C. Reagan-National
16h 30m
1 stop
DUB6:10 amDublin
Nov 4
DUB8:45 amDublin
16h 00m
2 stops
DCA7:45 pmWashington, D.C. Reagan-National
$707
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National 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. Reagan-National Airport to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 12/3

6:00 pm-9:55 am

1 stop10h 55m

Dublin

Wed 12/10

9:00 am-6:05 pm

1 stop14h 05m

$483

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 11/26

6:30 am-8:10 am

1 stop20h 40m

Dublin

Wed 12/3

9:00 am-7:45 pm

1 stop15h 45m

$487

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 11/16

11:05 am-7:10 am

2 stops15h 05m

Dublin

Tue 11/25

5:00 am-3:31 pm

2 stops15h 31m

$488

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 12/2

12:55 pm-7:10 am

2 stops13h 15m

Dublin

Fri 12/12

9:00 am-9:56 pm

2 stops17h 56m

$489

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 12/2

9:40 am-7:10 am

1 stop16h 30m

Dublin

Tue 12/9

5:00 am-3:31 pm

2 stops15h 31m

$491

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 11/26

11:10 am-8:45 am

1 stop16h 35m

Dublin

Wed 12/3

5:55 am-5:05 pm

2 stops16h 10m

$501

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 11/4

1:15 pm-9:20 am

1 stop15h 05m

Dublin

Tue 11/11

10:45 am-10:56 pm

1 stop17h 11m

$502

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Tue 12/2

5:45 pm-11:30 am

2 stops12h 45m

Shannon

Tue 12/9

7:50 am-9:30 pm

2 stops18h 40m

$504

Washington, D.C.Cork

DCA - ORK

DCAORK

Washington, D.C. Reagan-National

Tue 12/2

1:44 pm-11:10 am

2 stops16h 26m

Cork

Tue 12/9

7:40 am-5:55 pm

2 stops15h 15m

$505

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Mon 12/29

8:40 pm-7:10 am

1 stop29h 30m

Dublin

Sat 1/10

9:00 am-10:35 pm

1 stop18h 35m

$539

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. Reagan-National 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, September is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $633. If you aren’t able to travel to Ireland during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $690.

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 $752. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. Reagan-National Airport to Ireland on a Monday will generally be more expensive and average around $871. 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 afternoon. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Ireland in the afternoon for as low as $789. 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 at noon when prices are around $890.

Cheap Washington, D.C. Reagan-National Airport to Ireland flight deals and tips

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

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Ireland. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Ireland.
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  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Ireland?

    Prices for flights from Washington, D.C. Reagan-National Airport to Ireland refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Ireland?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Ireland.

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

    The necessary travel and health documents for your Ireland trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Washington, D.C. Reagan-National Airport to Ireland

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Ireland with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $144Free CancellationRating
7.9
7,976 reviews
Search Delta flights
Aer LingusPriceFrom $450Free CancellationRating
7.2
1,347 reviews
Search Aer Lingus flights
American AirlinesPriceFrom $469Free CancellationRating
7.2
11,024 reviews
Search American Airlines flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
8,994 reviews
Search United Airlines flights
JetBluePriceFrom $496Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ireland from Washington, D.C..

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

Yes. All flights to Ireland 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 Ireland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from Washington, D.C..

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

Price alerts on flights to Ireland from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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