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Cheap flights from Washington, D.C. Reagan-National Airport to Dublin from $371

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 Dublin departing on 1/15. 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 Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:15 pm - 5:10 pm
DCA
-
DUB
19h 55m2 stops
Multiple Airlines Logo
9:00 am - 10:35 pm
DUB
-
DCA
18h 35m1 stop
$572Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
United Airlines Logo
6:30 am - 8:10 am
DCA
-
DUB
20h 40m1 stop
United Airlines Logo
9:00 am - 3:23 pm
DUB
-
DCA
35h 23m2 stops
$573United Airlines
Tue, Feb 24 - Fri, Mar 6
United Airlines Logo
8:00 pm - 8:10 am
DCA
-
DUB
31h 10m1 stop
United Airlines Logo
9:00 am - 8:55 am
DUB
-
DCA
28h 55m1 stop
$574United Airlines
Tue, Feb 24 - Wed, Mar 4
British Airways Logo
6:34 pm - 2:05 pm
DCA
-
DUB
14h 31m2 stops
British Airways Logo
8:50 am - 6:56 pm
DUB
-
DCA
15h 06m2 stops
$584British Airways
Wed, Jan 21 - Wed, Jan 28
United Airlines Logo
3:30 pm - 8:10 am
DCA
-
DUB
11h 40m1 stop
United Airlines Logo
9:00 am - 6:05 pm
DUB
-
DCA
14h 05m1 stop
$585United Airlines
Wed, Jan 21 - Wed, Jan 28
KLM Logo
11:11 am - 8:45 am
DCA
-
DUB
16h 34m1 stop
KLM Logo
1:25 pm - 10:48 pm
DUB
-
DCA
14h 23m2 stops
$589KLM
Wed, Feb 4 - Wed, Feb 11
Lufthansa Logo
3:15 pm - 7:30 am
DCA
-
DUB
11h 15m1 stop
Lufthansa Logo
9:30 am - 3:39 pm
DUB
-
DCA
11h 09m1 stop
$590Lufthansa
Sun, Jan 11 - Tue, Jan 20
United Airlines Logo
4:15 pm - 7:30 am
DCA
-
DUB
10h 15m1 stop
United Airlines Logo
9:30 am - 4:34 pm
DUB
-
DCA
12h 04m1 stop
$591United Airlines
Sun, Jan 11 - Tue, Jan 20
Air Canada Logo
6:59 am - 6:10 am
DCA
-
DUB
19h 11m1 stop
Air Canada Logo
9:50 am - 6:03 pm
DUB
-
DCA
13h 13m1 stop
$592Air Canada
Sun, Mar 22 - Wed, Apr 1
Multiple Airlines Logo
9:40 am - 7:10 am
DCA
-
DUB
16h 30m1 stop
Multiple Airlines Logo
9:10 am - 7:45 pm
DUB
-
DCA
15h 35m2 stops
$594Multiple Airlines
Sun, Jan 11 - Tue, Jan 20

British Airways flights from Washington, D.C. Reagan-National Airport to Dublin

Our best British Airways deals on Washington, D.C. Reagan-National Airport to Dublin flight tickets
British Airways
Jan 21
DCA6:34 pmWashington, D.C. Reagan-National
14h 31m
2 stops
DUB2:05 pmDublin
Jan 28
DUB8:50 amDublin
15h 06m
2 stops
DCA6:56 pmWashington, D.C. Reagan-National
$584
Find similar
British Airways
Jan 6
DCA6:10 amWashington, D.C. Reagan-National
20h 45m
2 stops
DUB7:55 amDublin
Jan 20
DUB10:55 amDublin
16h 08m
2 stops
DCA10:03 pmWashington, D.C. Reagan-National
$633
Find similar
British Airways
Jan 1
DCA6:00 amWashington, D.C. Reagan-National
20h 55m
2 stops
DUB7:55 amDublin
Jan 12
DUB8:40 pmDublin
25h 10m
2 stops
DCA4:50 pmWashington, D.C. Reagan-National
$732
Find similar

KLM flights from Washington, D.C. Reagan-National Airport to Dublin

Our best KLM deals on Washington, D.C. Reagan-National Airport to Dublin flight tickets
KLM
Feb 4
DCA11:11 amWashington, D.C. Reagan-National
16h 34m
1 stop
DUB8:45 amDublin
Feb 11
DUB1:25 pmDublin
14h 23m
2 stops
DCA10:48 pmWashington, D.C. Reagan-National
$589
Find similar
KLM
Feb 18
DCA5:59 pmWashington, D.C. Reagan-National
13h 41m
2 stops
DUB12:40 pmDublin
Feb 24
DUB9:45 amDublin
13h 44m
1 stop
DCA6:29 pmWashington, D.C. Reagan-National
$611
Find similar
KLM
Jan 11
DCA5:00 pmWashington, D.C. Reagan-National
14h 40m
2 stops
DUB12:40 pmDublin
Jan 20
DUB5:55 amDublin
15h 34m
2 stops
DCA4:29 pmWashington, D.C. Reagan-National
$636
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National 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 December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Dublin 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 2/4

4:15 pm-5:10 pm

2 stops19h 55m

Dublin

Wed 2/11

9:00 am-10:35 pm

1 stop18h 35m

$572

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 2/24

6:30 am-8:10 am

1 stop20h 40m

Dublin

Fri 3/6

9:00 am-3:23 pm

2 stops35h 23m

$573

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 2/24

8:00 pm-8:10 am

1 stop31h 10m

Dublin

Wed 3/4

9:00 am-8:55 am

1 stop28h 55m

$574

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 1/21

6:34 pm-2:05 pm

2 stops14h 31m

Dublin

Wed 1/28

8:50 am-6:56 pm

2 stops15h 06m

$584

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 1/21

3:30 pm-8:10 am

1 stop11h 40m

Dublin

Wed 1/28

9:00 am-6:05 pm

1 stop14h 05m

$585

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 2/4

11:11 am-8:45 am

1 stop16h 34m

Dublin

Wed 2/11

1:25 pm-10:48 pm

2 stops14h 23m

$589

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 1/11

3:15 pm-7:30 am

1 stop11h 15m

Dublin

Tue 1/20

9:30 am-3:39 pm

1 stop11h 09m

$590

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 1/11

4:15 pm-7:30 am

1 stop10h 15m

Dublin

Tue 1/20

9:30 am-4:34 pm

1 stop12h 04m

$591

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 3/22

6:59 am-6:10 am

1 stop19h 11m

Dublin

Wed 4/1

9:50 am-6:03 pm

1 stop13h 13m

$592

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sun 1/11

9:40 am-7:10 am

1 stop16h 30m

Dublin

Tue 1/20

9:10 am-7:45 pm

2 stops15h 35m

$594

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. Reagan-National 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. Reagan-National Airport to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $551. If you’re not able to fly to Dublin in February, then September is your next best option. Flight prices from Washington, D.C. Reagan-National Airport to Dublin during September average around $633.

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

The cheapest day to depart from Washington, D.C. Reagan-National 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 $740. Flights from Washington, D.C. Reagan-National 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 evening is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Dublin when you can find flight prices for as low as $786. Flying to Dublin in the evening 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.

When to book flights from Washington, D.C. Reagan-National Airport to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National 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. Reagan-National Airport to Dublin (DCA to DUB) flight deals and tips

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

Fastest flight time

9h 25m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Dublin takes 9h 25m
There are no direct flights from Washington, D.C. Reagan-National Airport to Dublin. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Dublin.
Search flight deals

  • How far is Washington, D.C. Reagan-National to Dublin by plane?

    Dublin is 3381.7 mi away from Washington, D.C. Reagan-National. A reasonable flight in good conditions will take 9h 25m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Dublin Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Dublin Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Reagan-National 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 airline from Washington, D.C. Reagan-National Airport to Dublin?

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Dublin with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom $359Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
American AirlinesPriceFrom $469Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
JetBluePriceFrom $477Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights

Traveling to a place near Dublin?

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

Why use momondo?

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

Finding the right flight to Dublin from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.

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 all potential Washington, D.C. to Dublin flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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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