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$261+ Cheap flights from Reagan-National (DCA) to Dublin (DUB)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — DUB
out 11 — out 181
sáb 10/11
sáb 10/18
1 adult, Economy
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Cheap flight deals from Reagan-National to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated setembro 11, 2025.

Round-trip from

$458
(Delta)

One-way from

$261
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$642
From Washington, D.C. Reagan-National to Dublin
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One-way flight from Washington, D.C. Reagan-National to Dublin
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($12 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 Dublin

Cheapest flights from Reagan-National to Dublin
Explore the most affordable flight options available from Reagan-National to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on setembro 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. 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.
dom 11/25:00 amDCA - DUB
1 stop22h 20mDelta
ter 11/119:45 amDUB - DCA
1 stop13h 14mDelta
Deal found 9/11$458
This United Airlines deal was found by Cheapflights users on 9/11. 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.
ter 11/45:00 pmDCA - DUB
1 stop11h 55mUnited Airlines
qua 11/129:00 amDUB - DCA
1 stop14h 05mUnited Airlines
Deal found 9/11$460
This Air Canada deal was found by Cheapflights users on 9/11. 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.
ter 11/412:55 pmDCA - DUB
2 stops13h 15mAir Canada
qua 11/129:00 amDUB - DCA
1 stop15h 45mAir Canada
Deal found 9/11$462
This Air Canada deal was found by Cheapflights users on 9/11. 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.
seg 10/276:50 pmDCA - DUB
1 stop31h 20mMultiple Airlines
qua 11/55:10 amDUB - DCA
2 stops15h 21mMultiple Airlines
Deal found 9/11$463
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 10/278:05 pmDCA - DUB
1 stop9h 50mUnited Airlines
qua 11/59:00 amDUB - DCA
2 stops32h 19mUnited Airlines
Deal found 9/9$464
This Delta deal was found by Cheapflights users on 9/11. 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.
ter 10/286:45 pmDCA - DUB
1 stop10h 35mDelta
ter 11/46:00 amDUB - DCA
2 stops16h 10mDelta
Deal found 9/11$471
This Delta deal was found by Cheapflights users on 9/8. 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.
qua 10/298:40 pmDCA - DUB
2 stops15h 05mDelta
ter 11/410:45 amDUB - DCA
1 stop17h 17mDelta
Deal found 9/8$472
This United Airlines deal was found by Cheapflights users on 9/11. 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.
qua 11/53:00 pmDCA - DUB
1 stop11h 30mUnited Airlines
ter 11/119:30 amDUB - DCA
1 stop9h 55mUnited Airlines
Deal found 9/11$475
This Air Canada deal was found by Cheapflights users on 9/10. 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.
seg 10/276:50 pmDCA - DUB
1 stop31h 20mAir Canada
qua 11/59:00 amDUB - DCA
1 stop15h 45mAir Canada
Deal found 9/10$480

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated setembro 11, 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

Reagan-National

Fly to

Dublin

Route

Depart

Return

Price

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

ter 11/4

5:00 pm-9:55 am

1 stop11h 55m

Dublin

sex 11/14

9:00 am-6:05 pm

1 stop14h 05m

$460

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

qua 11/5

3:00 pm-7:30 am

1 stop11h 30m

Dublin

sex 11/14

9:00 am-7:45 pm

1 stop15h 45m

$460

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

ter 10/28

6:45 pm-9:20 am

1 stop10h 35m

Dublin

ter 11/4

6:00 am-5:10 pm

2 stops16h 10m

$471

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

qua 11/19

5:00 pm-7:30 am

1 stop9h 30m

Dublin

qui 11/27

9:30 am-2:27 pm

1 stop9h 57m

$475

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

qua 11/5

3:00 pm-7:30 am

1 stop11h 30m

Dublin

qui 11/13

1:35 pm-7:35 pm

1 stop11h 00m

$475

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

qua 10/29

8:40 pm-3:45 pm

2 stops15h 05m

Dublin

ter 11/4

10:45 am-10:59 pm

2 stops17h 14m

$476

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

qua 11/19

4:00 pm-7:30 am

1 stop10h 30m

Dublin

dom 11/23

9:00 am-6:05 pm

1 stop14h 05m

$487

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

seg 11/3

8:40 pm-7:10 am

1 stop29h 30m

Dublin

ter 11/18

9:30 am-2:25 pm

1 stop9h 55m

$494

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

qui 11/6

3:00 pm-9:20 am

1 stop13h 20m

Dublin

qui 11/13

9:45 am-5:59 pm

1 stop13h 14m

$502

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

dom 10/19

6:45 pm-10:45 am

1 stop11h 00m

Dublin

sáb 11/1

10:45 am-6:00 pm

1 stop11h 15m

$502

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Showing 1-10 of 20 results
1
2

Best time to book a flight from Reagan-National to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Dublin (average of $509). Flying from Washington, D.C. Reagan-National Airport to Dublin in June is currently the most expensive (average of $924). 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 DUB?

Find hourly flight availability from Reagan-National to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated setembro 11, 2025.

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Dublin in the afternoon. Doing so could potentially save you 12% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Dublin?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Dublin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Dublin flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Dublin?

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated setembro 11, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Dublin, such as United Airlines, American Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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
2,913 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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
1,271 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

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 Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Dublin, you will be flying into Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 4 airlines have flights to Dublin from Washington, D.C. Reagan-National on a regular basis.

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

    A quick flight from Washington, D.C. Reagan-National Airport to Dublin can take about 10h 35m. United Airlines provides one of the quickest options available for as low as $471. The distance from Washington, D.C. Reagan-National Airport to Dublin is about 3381 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Dublin round-trip?

    Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to Dublin round-trip from $457. Other airlines that can offer you cheap pricing are United Airlines, from $496, and JetBlue, from $507. You may be able to fly from Washington, D.C. Reagan-National Airport to Dublin for 39% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Dublin 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 Dublin?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Dublin (average of $509). Flying from Washington, D.C. Reagan-National Airport to Dublin in June is currently the most expensive (average of $924). 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

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 4 airlines flying from Reagan-National to Dublin

Discover the top 4 airlines that operate flights from Reagan-National to Dublin. 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 setembro 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$457Average$668FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$496Average$742FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$507Average$673FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$537Average$878FlexibilityNo cancel feeOn-time71%

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