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Cheap flights from Dublin to Washington, D.C. from $378

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Washington, D.C. departing on 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Dublin to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
9:45 am - 6:14 pm
DUB
-
DCA
12h 29m
1 stop
Delta Logo
1:45 pm - 7:45 am
DCA
-
DUB
13h 00m
1 stop
$608Delta
Wed, Oct 28 - Sun, Nov 1
United Airlines Logo
9:00 am - 7:58 pm
DUB
-
DCA
15h 58m
1 stop
United Airlines Logo
7:00 pm - 9:55 am
DCA
-
DUB
9h 55m
1 stop
$609United Airlines
Tue, Dec 22 - Wed, Dec 30
Delta Logo
9:45 am - 6:14 pm
DUB
-
DCA
12h 29m
1 stop
Delta Logo
1:45 pm - 7:45 am
DCA
-
DUB
13h 00m
1 stop
$610Delta
Wed, Oct 28 - Sun, Nov 1
Multiple Airlines Logo
3:00 pm - 10:03 pm
DUB
-
DCA
12h 03m
1 stop
Multiple Airlines Logo
5:00 pm - 10:00 am
DCA
-
DUB
12h 00m
1 stop
$612Multiple Airlines
Thu, Oct 1 - Thu, Oct 15
Delta Logo
1:25 pm - 10:59 pm
DUB
-
DCA
14h 34m
2 stops
Delta Logo
12:55 pm - 10:45 am
DCA
-
DUB
16h 50m
1 stop
$613Delta
Tue, Aug 25 - Tue, Sep 22
United Airlines Logo
9:50 am - 3:38 pm
DUB
-
DCA
10h 48m
1 stop
United Airlines Logo
8:20 pm - 11:10 am
DCA
-
DUB
9h 50m
1 stop
$614United Airlines
Tue, Aug 25 - Tue, Sep 22
Delta Logo
1:25 pm - 10:59 pm
DUB
-
DCA
14h 34m
2 stops
Delta Logo
2:45 pm - 8:45 am
DCA
-
DUB
13h 00m
2 stops
$615Delta
Tue, Aug 25 - Tue, Sep 22
KLM Logo
11:55 am - 11:30 pm
DUB
-
DCA
16h 35m
1 stop
KLM Logo
5:00 pm - 8:45 am
DCA
-
DUB
10h 45m
1 stop
$616KLM
Wed, Dec 23 - Mon, Dec 28
Finnair Logo
9:30 am - 11:59 pm
DUB
-
DCA
19h 29m
1 stop
Finnair Logo
5:22 pm - 11:50 am
DCA
-
DUB
13h 28m
1 stop
$617Finnair
Thu, Jul 9 - Thu, Jul 16
Delta Logo
1:25 pm - 10:59 pm
DUB
-
DCA
14h 34m
2 stops
Delta Logo
12:27 pm - 8:45 am
DCA
-
DUB
15h 18m
1 stop
$618Delta
Fri, Aug 28 - Sun, Aug 30

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

Our best Air Canada deals on Dublin to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
Dec 22
DUB9:00 amDublin
15h 58m
1 stop
DCA7:58 pmWashington, D.C. Reagan-National
Dec 31
DCA11:05 amWashington, D.C. Reagan-National
15h 05m
2 stops
DUB7:10 amDublin
$623
Air Canada
Aug 25
DUB9:50 amDublin
15h 07m
2 stops
DCA7:57 pmWashington, D.C. Reagan-National
Sep 22
DCA12:40 pmWashington, D.C. Reagan-National
14h 35m
2 stops
DUB8:15 amDublin
$632
Air Canada
Jul 3
DUB9:20 amDublin
17h 28m
2 stops
DCA9:48 pmWashington, D.C. Reagan-National
Jul 12
DCA4:20 pmWashington, D.C. Reagan-National
10h 25m
1 stop
DUB7:45 amDublin
$809

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

Our best United Airlines deals on Dublin to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Dec 22
DUB9:00 amDublin
15h 58m
1 stop
DCA7:58 pmWashington, D.C. Reagan-National
Dec 30
DCA7:00 pmWashington, D.C. Reagan-National
9h 55m
1 stop
DUB9:55 amDublin
$609
United Airlines
Aug 25
DUB9:50 amDublin
10h 48m
1 stop
DCA3:38 pmWashington, D.C. Reagan-National
Sep 22
DCA8:20 pmWashington, D.C. Reagan-National
9h 50m
1 stop
DUB11:10 amDublin
$614
United Airlines
Dec 20
DUB9:30 amDublin
9h 48m
1 stop
DCA2:18 pmWashington, D.C. Reagan-National
Dec 30
DCA5:00 pmWashington, D.C. Reagan-National
9h 30m
1 stop
DUB7:30 amDublin
$630

momondo Fare Finder

 
Customize your flight search to find flights from Dublin to Washington, D.C. Reagan-National Airport 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 June 28, 2026.
Use the filters below to find and compare flights from Dublin to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 10/28

9:45 am-6:14 pm

1 stop12h 29m

Washington, D.C. Reagan-National

Sun 11/1

1:45 pm-7:45 am

1 stop13h 00m

$608

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 12/22

9:00 am-7:58 pm

1 stop15h 58m

Washington, D.C. Reagan-National

Wed 12/30

7:00 pm-9:55 am

1 stop9h 55m

$609

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 10/28

9:45 am-6:14 pm

1 stop12h 29m

Washington, D.C. Reagan-National

Sun 11/1

1:45 pm-7:45 am

1 stop13h 00m

$610

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 10/1

3:00 pm-10:03 pm

1 stop12h 03m

Washington, D.C. Reagan-National

Thu 10/15

5:00 pm-10:00 am

1 stop12h 00m

$612

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 8/25

1:25 pm-10:59 pm

2 stops14h 34m

Washington, D.C. Reagan-National

Tue 9/22

12:55 pm-10:45 am

1 stop16h 50m

$613
Quickest round-trip

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 8/25

9:50 am-3:38 pm

1 stop10h 48m

Washington, D.C. Reagan-National

Tue 9/22

8:20 pm-11:10 am

1 stop9h 50m

$614

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 8/25

1:25 pm-10:59 pm

2 stops14h 34m

Washington, D.C. Reagan-National

Tue 9/22

2:45 pm-8:45 am

2 stops13h 00m

$615

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 12/23

11:55 am-11:30 pm

1 stop16h 35m

Washington, D.C. Reagan-National

Mon 12/28

5:00 pm-8:45 am

1 stop10h 45m

$616

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 7/9

9:30 am-11:59 pm

1 stop19h 29m

Washington, D.C. Reagan-National

Thu 7/16

5:22 pm-11:50 am

1 stop13h 28m

$617

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 8/28

1:25 pm-10:59 pm

2 stops14h 34m

Washington, D.C. Reagan-National

Sun 8/30

12:27 pm-8:45 am

1 stop15h 18m

$618

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 Washington, D.C. from

How to get the cheapest flight ticket from Dublin to Washington, D.C. Reagan-National Airport

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 airline that flies from Dublin to Washington, D.C. Reagan-National?

JetBlue is the most popular carrier operating from Dublin to Washington, D.C. Reagan-National

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

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dublin to Washington, D.C. Reagan-National Airport (DUB to DCA) flight deals and tips

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

Fastest flight time

13h 24m

Direct flights

None
The fastest flight from Dublin to Washington, D.C. Reagan-National Airport takes 13h 24m
There are no direct flights from Dublin to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Dublin to Washington, D.C. Reagan-National Airport.
Search flight deals

Frequently asked questions about flying from Dublin to Washington, D.C. Reagan-National Airport

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

    Dublin and Washington, D.C. Reagan-National are 3381.7 mi apart from one another. 13h 24m is a normal flight duration for this route.

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

    Prices for flights from Dublin Airport to Washington, D.C. Reagan-National Airport were last updated today.

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

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Colonial Beach
Linthicum Heights
Rockville
Silver Spring
Towson
Manassas
Tysons
Springfield
Fairfax
Bethesda
Glen Burnie

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Dublin to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search for Dublin to Washington, D.C. 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 Dublin to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Dublin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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