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$300+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — DUB
ago. 2 — ago. 91
sáb. 8/2
sáb. 8/9
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 julio 28, 2025.

Round-trip from

$476
(lastminute.com)

One-way from

$300
(Expedia)

Popular in

December

Cheapest in

January

Average price

$861
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, 5% 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 July 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 julio 28, 2025.

This lastminute.com deal was found by Cheapflights users on 7/28. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/85:42 pmDCA - DUB
1 stop9h 38mJetBlue
lun. 9/1510:40 amDUB - DCA
1 stop11h 25mJetBlue
Deal found 7/28$476
This United Airlines deal was found by Cheapflights users on 7/28. 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. 8/115:00 pmDCA - DUB
1 stop11h 45mUnited Airlines
mié. 8/2011:35 amDUB - DCA
1 stop12h 28mUnited Airlines
Deal found 7/28$478
This Delta deal was found by Cheapflights users on 7/25. 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. 8/116:59 pmDCA - DUB
1 stop10h 46mDelta
mié. 8/201:15 pmDUB - DCA
2 stops15h 31mDelta
Deal found 7/25$492
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
lun. 8/115:30 pmDCA - DUB
1 stop11h 30mAir France
mié. 8/209:10 amDUB - DCA
2 stops16h 37mAir France
Deal found 7/28$495
This Air Canada deal was found by Cheapflights users on 7/26. 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.
mié. 8/66:00 amDCA - DUB
1 stop20h 45mAir Canada
mar. 9/99:20 amDUB - DCA
1 stop11h 31mAir Canada
Deal found 7/26$499
This Iberia deal was found by Cheapflights users on 7/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/102:00 pmDCA - DUB
2 stops13h 55mIberia
mié. 11/199:40 amDUB - DCA
2 stops36h 11mIberia
Deal found 7/26$503
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/911:00 amDCA - DUB
3 stops27h 35mMultiple Airlines
mié. 9/177:55 amDUB - DCA
2 stops18h 56mMultiple Airlines
Deal found 7/27$510
This KLM deal was found by Cheapflights users on 7/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/153:10 pmDCA - DUB
1 stop11h 35mKLM
mar. 11/259:45 amDUB - DCA
1 stop13h 15mKLM
Deal found 7/25$533

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 julio 28, 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

lun. 9/8

5:42 pm-8:20 am

1 stop9h 38m

Dublin

lun. 9/15

10:40 am-5:05 pm

1 stop11h 25m

$476

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 8/11

5:00 pm-9:45 am

1 stop11h 45m

Dublin

mié. 8/20

11:35 am-7:03 pm

1 stop12h 28m

$478

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 8/11

6:59 pm-10:45 am

1 stop10h 46m

Dublin

mié. 8/20

1:15 pm-11:46 pm

2 stops15h 31m

$492

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

lun. 8/11

5:30 pm-10:00 am

1 stop11h 30m

Dublin

mié. 8/20

9:10 am-8:47 pm

2 stops16h 37m

$495

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mié. 8/6

6:00 am-7:45 am

1 stop20h 45m

Dublin

mar. 9/9

9:20 am-3:51 pm

1 stop11h 31m

$499

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mar. 9/9

9:40 am-7:35 pm

2 stops28h 55m

Dublin

mié. 9/17

7:55 am-10:20 am

2 stops31h 25m

$503

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mar. 8/5

4:45 pm-10:45 am

1 stop13h 00m

Dublin

mar. 8/19

3:00 pm-10:12 pm

1 stop12h 12m

$547

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mié. 10/22

5:20 pm-8:20 am

1 stop10h 00m

$300

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

mié. 10/15

11:00 am-6:05 pm

2 stops26h 05m

$328

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

dom. 8/3

4:30 pm-7:45 am

1 stop10h 15m

$394

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 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 julio 28, 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 julio 28, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Dublin, such as Delta, KLM, and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,381 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,446 reviews
Delta
8.0
Very good
7,971 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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. 5 airlines have flights to Dublin from Washington, D.C. Reagan-National on a regular basis.

  • 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 $476. Other airlines that can offer you cheap pricing are United Airlines, from $478, and Delta, from $492. You may be able to fly from Washington, D.C. Reagan-National Airport to Dublin for 37% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Dublin one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $300. Users have also found prices from $394 and $398 on Air Canada and Scandinavian Airlines, respectively.

  • 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 5 airlines flying from Reagan-National to Dublin

Discover the top 5 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 julio 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$457Average$668FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$496Average$742FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$526Average$673FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$560Average$880FlexibilityNo cancel feeOn-time71%
DeltaCheapest$703Average$1,086FlexibilityNo cancel feeOn-timeN/A

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