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$265+ Cheap flights from Reagan-National (DCA) to Ireland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — DUB
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
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Cheap flight deals from Reagan-National to Ireland

Keep the following information in mind while searching for Reagan-National to Ireland flight deals. Data was last updated septembre 15, 2025.

Round-trip from

$452
(Finnair)

One-way from

$265
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$628
From Washington, D.C. Reagan-National to Ireland
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One-way flight from Washington, D.C. Reagan-National to Ireland
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Highest demand for flights based on searches. 11% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Reagan-National to Ireland

Cheapest flights from Reagan-National to Ireland
Explore the most affordable flight options available from Reagan-National to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 15, 2025.

This Finnair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/301:44 pmDCA - DUB
1 stop13h 56mMultiple Airlines
mar. 1/2011:30 amDUB - DCA
1 stop13h 29mMultiple Airlines
Deal found 9/15$452
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/275:00 pmDCA - DUB
1 stop11h 45mDelta
mer. 11/510:45 amDUB - DCA
2 stops15h 58mDelta
Deal found 9/15$457
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 11/25:00 amDCA - DUB
1 stop22h 20mDelta
ven. 11/1411:30 amDUB - DCA
1 stop10h 30mDelta
Deal found 9/15$458
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:30 amDCA - DUB
2 stops43h 40mUnited Airlines
mar. 11/181:35 pmDUB - DCA
1 stop11h 00mUnited Airlines
Deal found 9/14$459
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/127:00 pmDCA - DUB
1 stop9h 55mUnited Airlines
ven. 11/219:00 amDUB - DCA
1 stop15h 45mUnited Airlines
Deal found 9/14$460
This Air Canada deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/412:55 pmDCA - DUB
2 stops13h 15mAir Canada
mer. 11/129:00 amDUB - DCA
1 stop18h 35mAir Canada
Deal found 9/13$462
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2812:55 pmDCA - DUB
2 stops13h 15mMultiple Airlines
mar. 11/45:00 amDUB - DCA
2 stops15h 31mMultiple Airlines
Deal found 9/14$464
This Air Canada deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/276:50 pmDCA - DUB
1 stop31h 20mMultiple Airlines
mer. 11/55:10 amDUB - DCA
2 stops15h 21mMultiple Airlines
Deal found 9/14$465
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/198:59 amDCA - DUB
1 stop17h 46mDelta
jeu. 11/278:45 amDUB - DCA
2 stops17h 30mDelta
Deal found 9/15$471
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/298:40 pmDCA - DUB
2 stops15h 05mDelta
mar. 11/410:45 amDUB - DCA
1 stop17h 17mDelta
Deal found 9/13$472
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/58:59 amDCA - DUB
1 stop17h 46mDelta
ven. 11/1411:30 amDUB - DCA
1 stop10h 30mDelta
Deal found 9/14$475
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/298:40 pmDCA - DUB
2 stops15h 05mDelta
mer. 11/510:45 amDUB - DCA
2 stops15h 58mDelta
Deal found 9/14$477

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated septembre 15, 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

Reagan-National

Fly to

Ireland

Route

Depart

Return

Price

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 1/12

9:00 am-8:45 am

2 stops18h 45m

Dublin

mar. 1/20

10:45 am-11:08 pm

1 stop17h 23m

$457

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mer. 11/12

7:00 pm-9:55 am

1 stop9h 55m

Dublin

ven. 11/21

9:00 am-7:45 pm

1 stop15h 45m

$460

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mer. 3/11

11:00 am-9:55 am

1 stop18h 55m

Dublin

mer. 3/25

8:00 am-10:35 pm

1 stop18h 35m

$460

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mer. 10/29

8:40 pm-3:45 pm

2 stops15h 05m

Dublin

mar. 11/4

10:45 am-11:02 pm

1 stop17h 17m

$472

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 12/29

7:30 am-8:10 am

1 stop19h 40m

Dublin

ven. 1/9

9:30 am-3:18 pm

1 stop10h 48m

$475

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

ven. 11/7

4:00 pm-7:30 am

1 stop10h 30m

Dublin

ven. 11/14

9:00 am-6:05 pm

1 stop14h 05m

$487

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mer. 11/19

4:00 pm-7:30 am

1 stop10h 30m

Dublin

dim. 11/23

9:00 am-6:05 pm

1 stop14h 05m

$487

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 12/1

1:44 pm-8:40 am

1 stop13h 56m

Dublin

dim. 12/14

11:30 am-8:58 pm

1 stop14h 28m

$502

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

ven. 12/5

4:49 pm-8:40 am

1 stop10h 51m

Dublin

mar. 12/9

11:30 am-4:55 pm

1 stop10h 25m

$502

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

jeu. 11/6

4:36 pm-8:40 am

1 stop11h 04m

Dublin

mar. 11/11

11:30 am-8:58 pm

1 stop14h 28m

$502

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 40 results
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Best time to book a flight from Reagan-National to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Ireland

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Ireland?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Ireland (average of $509). Flying from Washington, D.C. Reagan-National Airport to Ireland in June is currently the most expensive (average of $923). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DCA to IE?

Find hourly flight availability from Reagan-National to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Ireland as you normally would.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated septembre 15, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and JetBlue from Washington, D.C. Reagan-National Airport to Ireland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.2
Good
2,912 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Aer Lingus
7.2
Good
1,270 reviews
United Airlines
7.4
Good
8,929 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Ireland?

    There are many flights that can get you from Washington, D.C. Reagan-National Airport to Ireland in 9h 55m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. There are 3381 mi between Washington, D.C. Reagan-National Airport and Ireland. This flight may include one or multiple stops.

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to Ireland?

    Most travelers choose Washington, D.C. Reagan-National - Dublin, Washington, D.C. Reagan-National - Shannon or Washington, D.C. Reagan-National - Cork when deciding on the best route from Washington, D.C. Reagan-National Airport to Ireland.

  • Can I find deals for flights from Reagan-National to Ireland that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Ireland.

  • Can I find deals for business class flights from Reagan-National to Ireland?

    Yes. Cheapflights offers flight deals from Reagan-National to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Ireland?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Ireland (average of $509). Flying from Washington, D.C. Reagan-National Airport to Ireland in June is currently the most expensive (average of $923). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Reagan-National to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Reagan-National to Ireland

Discover the top 4 airlines that operate flights from Reagan-National to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$457Average$668FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$469Average$937FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$496Average$797FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$507Average$673FlexibilityNo cancel feeOn-time62%

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