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Cheap flights from Washington, D.C. Reagan-National Airport to Dublin from $300

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 5/2. 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.
JetBlue Logo
12:00 pm - 8:20 am
DCA
-
DUB
15h 20m
1 stop
JetBlue Logo
11:40 am - 10:59 pm
DUB
-
DCA
16h 19m
1 stop
$486JetBlue
Wed, Apr 22 - Wed, May 6
JetBlue Logo
12:00 pm - 8:20 am
DCA
-
DUB
15h 20m
1 stop
JetBlue Logo
10:40 am - 4:42 pm
DUB
-
DCA
11h 02m
1 stop
$487JetBlue
Wed, Apr 22 - Mon, May 4
JetBlue Logo
3:35 pm - 8:20 am
DCA
-
DUB
11h 45m
1 stop
JetBlue Logo
10:40 am - 3:42 pm
DUB
-
DCA
10h 02m
1 stop
$489JetBlue
Tue, Apr 28 - Fri, May 8
JetBlue Logo
3:35 pm - 8:20 am
DCA
-
DUB
11h 45m
1 stop
JetBlue Logo
10:40 am - 3:42 pm
DUB
-
DCA
10h 02m
1 stop
$490JetBlue
Wed, Apr 22 - Wed, May 6
JetBlue Logo
9:00 pm - 8:20 am
DCA
-
DUB
30h 20m
1 stop
JetBlue Logo
10:40 am - 3:42 pm
DUB
-
DCA
10h 02m
1 stop
$491JetBlue
Fri, May 1 - Wed, May 6
JetBlue Logo
7:00 am - 8:20 am
DCA
-
DUB
20h 20m
1 stop
JetBlue Logo
11:40 am - 10:59 pm
DUB
-
DCA
16h 19m
1 stop
$496JetBlue
Fri, May 1 - Wed, May 6
JetBlue Logo
6:00 am - 9:00 am
DCA
-
DUB
22h 00m
1 stop
JetBlue Logo
10:40 am - 11:10 am
DUB
-
DCA
29h 30m
1 stop
$503JetBlue
Sat, May 2 - Sun, May 10
JetBlue Logo
6:00 am - 9:00 am
DCA
-
DUB
22h 00m
1 stop
JetBlue Logo
11:40 am - 10:59 pm
DUB
-
DCA
16h 19m
1 stop
$506JetBlue
Thu, Apr 30 - Wed, May 6
JetBlue Logo
6:00 am - 9:00 am
DCA
-
DUB
22h 00m
1 stop
JetBlue Logo
10:40 am - 9:44 am
DUB
-
DCA
28h 04m
1 stop
$507JetBlue
Sat, May 2 - Sun, May 10
JetBlue Logo
6:30 am - 9:00 am
DCA
-
DUB
21h 30m
1 stop
JetBlue Logo
10:40 am - 7:59 pm
DUB
-
DCA
14h 19m
1 stop
$511JetBlue
Thu, Aug 13 - Tue, Aug 25

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

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Dublin flight tickets
Air Canada
Apr 14
DCA9:40 amWashington, D.C. Reagan-National
17h 35m
1 stop
DUB8:15 amDublin
Apr 21
DUB9:50 amDublin
15h 03m
1 stop
DCA7:53 pmWashington, D.C. Reagan-National
$571
Air Canada
Apr 14
DCA9:40 amWashington, D.C. Reagan-National
17h 35m
1 stop
DUB8:15 amDublin
Apr 21
DUB9:50 amDublin
13h 13m
1 stop
DCA6:03 pmWashington, D.C. Reagan-National
$573
Air Canada
Feb 28
DCA8:40 pmWashington, D.C. Reagan-National
29h 30m
1 stop
DUB7:10 amDublin
Mar 11
DUB8:00 amDublin
14h 05m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National
$592

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Dublin flight tickets
United Airlines
Apr 20
DCA6:30 amWashington, D.C. Reagan-National
22h 15m
1 stop
DUB9:45 amDublin
Apr 28
DUB9:50 amDublin
40h 41m
3 stops
DCA9:31 pmWashington, D.C. Reagan-National
$583
United Airlines
Mar 2
DCA3:30 pmWashington, D.C. Reagan-National
11h 40m
1 stop
DUB8:10 amDublin
Mar 11
DUB8:00 amDublin
14h 05m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National
$584
United Airlines
Feb 25
DCA12:00 pmWashington, D.C. Reagan-National
15h 10m
1 stop
DUB8:10 amDublin
Mar 6
DUB9:00 amDublin
14h 05m
1 stop
DCA6:05 pmWashington, D.C. Reagan-National
$588

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 February 21, 2026.
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 4/22

12:00 pm-8:20 am

1 stop15h 20m

Dublin

Wed 5/6

11:40 am-10:59 pm

1 stop16h 19m

$486

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 4/22

12:00 pm-8:20 am

1 stop15h 20m

Dublin

Mon 5/4

10:40 am-4:42 pm

1 stop11h 02m

$487

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 4/28

3:35 pm-8:20 am

1 stop11h 45m

Dublin

Fri 5/8

10:40 am-3:42 pm

1 stop10h 02m

$489

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 4/22

3:35 pm-8:20 am

1 stop11h 45m

Dublin

Wed 5/6

10:40 am-3:42 pm

1 stop10h 02m

$490

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Fri 5/1

9:00 pm-8:20 am

1 stop30h 20m

Dublin

Wed 5/6

10:40 am-3:42 pm

1 stop10h 02m

$491

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Fri 5/1

7:00 am-8:20 am

1 stop20h 20m

Dublin

Wed 5/6

11:40 am-10:59 pm

1 stop16h 19m

$496

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sat 5/2

6:00 am-9:00 am

1 stop22h 00m

Dublin

Sun 5/10

10:40 am-11:10 am

1 stop29h 30m

$503

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Thu 4/30

6:00 am-9:00 am

1 stop22h 00m

Dublin

Wed 5/6

11:40 am-10:59 pm

1 stop16h 19m

$506

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Sat 5/2

6:00 am-9:00 am

1 stop22h 00m

Dublin

Sun 5/10

10:40 am-9:44 am

1 stop28h 04m

$507

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Thu 8/13

6:30 am-9:00 am

1 stop21h 30m

Dublin

Tue 8/25

10:40 am-7:59 pm

1 stop14h 19m

$511

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 typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Dublin?

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 Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $727. Flights from Washington, D.C. Reagan-National Airport to Dublin on a Friday will generally be more expensive and average around $881. 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 $771. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $796.

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

8h 39m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Dublin takes 8h 39m
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 8h 39m.

  • 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 $457Free CancellationRating
7.2
1,458 reviews
Search Aer Lingus flights
American AirlinesPriceFrom $459Free CancellationRating
7.2
11,333 reviews
Search American Airlines flights
JetBluePriceFrom $477Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
9,334 reviews
Search United Airlines flights

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
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Kildare
Wicklow
Drogheda
Portmarnock
Arklow
Castleknock
Malahide
Leixlip
Carlingford
Cavan
Maynooth
Naas
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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