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Cheap flights from Washington, D.C. Reagan-National Airport to Dublin from $243

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 10/4. 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 Dublin (DCA-DUB)

Cheap round-trip flights

Logo
3:00 pm - 9:20 amDCA-DUB
14h 20m1 stop
Logo
10:45 am - 10:59 pmDUB-DCA
17h 14m2 stops
$455
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dom., oct. 26 - mar., nov. 4
Delta Logo
4:50 pm - 9:20 amDCA-DUB
12h 30m1 stop
Delta Logo
10:45 am - 10:59 pmDUB-DCA
17h 14m2 stops
$457Delta
Find Deal
mar., oct. 28 - mar., nov. 4
Air Canada Logo
6:50 pm - 7:10 amDCA-DUB
32h 20m1 stop
Air Canada Logo
9:00 am - 6:05 pmDUB-DCA
14h 05m1 stop
$462Air Canada
Find Deal
sáb., nov. 1 - mié., nov. 12
Logo
11:05 am - 6:10 amDCA-DUB
15h 05m2 stops
Logo
5:10 am - 3:31 pmDUB-DCA
15h 21m2 stops
$464
Find Deal
mar., oct. 28 - mié., nov. 5
United Airlines Logo
10:30 am - 8:10 amDCA-DUB
16h 40m1 stop
United Airlines Logo
9:30 am - 2:27 pmDUB-DCA
9h 57m1 stop
$475United Airlines
Find Deal
mié., nov. 19 - jue., nov. 27
United Airlines Logo
8:00 pm - 8:10 amDCA-DUB
31h 10m1 stop
United Airlines Logo
9:00 am - 8:55 amDUB-DCA
28h 55m1 stop
$476United Airlines
Find Deal
lun., feb. 9 - dom., feb. 22
JetBlue Logo
6:25 am - 8:20 amDCA-DUB
20h 55m1 stop
JetBlue Logo
10:40 am - 6:00 pmDUB-DCA
12h 20m1 stop
$482JetBlue
Find Deal
lun., oct. 13 - mar., oct. 21
Air Canada Logo
12:55 pm - 6:10 amDCA-DUB
13h 15m2 stops
Air Canada Logo
9:00 am - 6:05 pmDUB-DCA
14h 05m1 stop
$485Air Canada
Find Deal
mar., oct. 28 - vie., nov. 7
Lufthansa Logo
6:59 am - 6:10 amDCA-DUB
19h 11m1 stop
Lufthansa Logo
9:30 am - 3:53 pmDUB-DCA
11h 23m1 stop
$495Lufthansa
Find Deal
dom., oct. 26 - mar., nov. 4
JetBlue Logo
6:55 pm - 9:00 amDCA-DUB
9h 05m1 stop
JetBlue Logo
11:30 am - 7:22 pmDUB-DCA
12h 52m1 stop
$508JetBlue
Find Deal
sáb., oct. 11 - mié., oct. 15

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
Nov 19
DCA10:30 amWashington, D.C. Reagan-National
16h 40m
1 stop
DUB8:10 amDublin
Nov 27
DUB9:30 amDublin
9h 57m
1 stop
DCA2:27 pmWashington, D.C. Reagan-National
$475
Find similar
United Airlines
Feb 9
DCA8:00 pmWashington, D.C. Reagan-National
31h 10m
1 stop
DUB8:10 amDublin
Feb 22
DUB9:00 amDublin
28h 55m
1 stop
DCA8:55 amWashington, D.C. Reagan-National
$476
Find similar
United Airlines
Oct 28
DCA12:55 pmWashington, D.C. Reagan-National
13h 15m
2 stops
DUB6:10 amDublin
Nov 5
DUB9:30 amDublin
12h 16m
1 stop
DCA4:46 pmWashington, D.C. Reagan-National
$477
Find similar

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

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to Dublin flight tickets
JetBlue
Oct 13
DCA6:25 amWashington, D.C. Reagan-National
20h 55m
1 stop
DUB8:20 amDublin
Oct 21
DUB10:40 amDublin
12h 20m
1 stop
DCA6:00 pmWashington, D.C. Reagan-National
$482
Find similar
JetBlue
Sep 6
DCA1:20 pmWashington, D.C. Reagan-National
14h 40m
1 stop
DUB9:00 amDublin
Sep 12
DUB11:30 amDublin
12h 52m
1 stop
DCA7:22 pmWashington, D.C. Reagan-National
$508
Find similar
JetBlue
Sep 14
DCA5:30 pmWashington, D.C. Reagan-National
9h 50m
1 stop
DUB8:20 amDublin
Sep 24
DUB11:30 amDublin
12h 52m
1 stop
DCA7:22 pmWashington, D.C. Reagan-National
$526
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 septiembre 4, 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

dom. 10/26

3:00 pm-9:20 am

1 stop14h 20m

Dublin

mar. 11/4

10:45 am-10:59 pm

2 stops17h 14m

$455

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mar. 10/28

4:50 pm-9:20 am

1 stop12h 30m

Dublin

mar. 11/4

10:45 am-10:59 pm

2 stops17h 14m

$457

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

sáb. 11/1

6:50 pm-7:10 am

1 stop32h 20m

Dublin

mié. 11/12

9:00 am-6:05 pm

1 stop14h 05m

$462

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mar. 10/28

11:05 am-6:10 am

2 stops15h 05m

Dublin

mié. 11/5

5:10 am-3:31 pm

2 stops15h 21m

$464

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mié. 11/19

10:30 am-8:10 am

1 stop16h 40m

Dublin

jue. 11/27

9:30 am-2:27 pm

1 stop9h 57m

$475

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 2/9

8:00 pm-8:10 am

1 stop31h 10m

Dublin

dom. 2/22

9:00 am-8:55 am

1 stop28h 55m

$476

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 10/13

6:25 am-8:20 am

1 stop20h 55m

Dublin

mar. 10/21

10:40 am-6:00 pm

1 stop12h 20m

$482

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mar. 10/28

12:55 pm-6:10 am

2 stops13h 15m

Dublin

vie. 11/7

9:00 am-6:05 pm

1 stop14h 05m

$485

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

dom. 10/26

6:59 am-6:10 am

1 stop19h 11m

Dublin

mar. 11/4

9:30 am-3:53 pm

1 stop11h 23m

$495

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

sáb. 10/11

6:55 pm-9:00 am

1 stop9h 05m

Dublin

mié. 10/15

11:30 am-7:22 pm

1 stop12h 52m

$508

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, January 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 $586. If you’re not able to fly to Dublin in January, then September is your next best option. Flight prices from Washington, D.C. Reagan-National Airport to Dublin during September average around $642.

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 $736. Flights from Washington, D.C. Reagan-National Airport to Dublin on a Friday will generally be more expensive and average around $893. 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 afternoon 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 $791. Flying to Dublin in the afternoon 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

Direct flights

None
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.
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  • 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 05m.

  • 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
1,252 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $496Free CancellationRating
7.4
8,939 reviews
Search United Airlines flights
JetBluePriceFrom $507Free CancellationRating
7.2
2,916 reviews
Search JetBlue flights
American AirlinesPriceFrom $537Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Dublin?

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