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

For one-way options, check prices for WestJet. According to our data, you can fly for as low as $452. Users have also found prices from $466 and $506 on JetBlue and Scandinavian Airlines, respectively.

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

Currently, February is the cheapest month in which you can book a flight from Ireland to Washington, D.C. Reagan-National Airport (average of $278). Flying from Ireland to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). 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 are the most popular routes from Ireland to Washington, D.C. Reagan-National Airport?

When deciding which route to take from Ireland to Washington, D.C. Reagan-National Airport consider Dublin - Washington, D.C. Reagan-National, Shannon - Washington, D.C. Reagan-National or Cork - Washington, D.C. Reagan-National as they are the most popular.

How far in advance should I book a flight from Ireland to Washington, D.C. Reagan-National Airport?

Travelers have found it’s best to book a flight 27 days in advance to save up to 154% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 27 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Ireland to Washington, D.C. Reagan-National Airport 1-2 weeks in advance for as low as $497, or $729 for flights within the next 24 hours.

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

The best pricing can be found in the month of January. Prices to Washington, D.C. Reagan-National Airport from Ireland average $561. You can even find prices in January for less than $561, as users have found deals to Washington, D.C. Reagan-National Airport from as low as $276. The month of July appears to be one of the more expensive times to travel to Washington, D.C. Reagan-National Airport from Ireland. Flying in the targeted month can save you up to 33%.

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

When flying from Ireland to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

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

$672+ Flights from Ireland to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Ireland to Reagan-National

Most accurate provider	Gurufare 3 stars
Most trusted provider	Gurufare 3 stars
Round-trip from	$477 (oojo)
One-way from	$427 (Mytrip)
Popular in	July
Cheapest in	January
Average price	$502

Provider with most accurate pricing for Dublin-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Dublin-Washington, D.C. (WAS) flights.

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From Ireland to Washington, D.C. Reagan-National

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One-way flight from Ireland to Washington, D.C. Reagan-National

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Highest demand for flights based on searches. 18% potential increase in price ($131 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from Ireland to Reagan-National

Cheapest flights from Ireland to Reagan-National
Explore the most affordable flight options available from Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

Fri 5/27:05 pmDUB - DCA

2 stops33h 34mScandinavian Airlines

Sat 5/316:05 amDCA - DUB

2 stops29h 05mScandinavian Airlines

Deal found 3/30

$477

Fri 5/28:15 pmDUB - DCA

2 stops24h 55mBritish Airways

Mon 5/55:44 amDCA - DUB

2 stops21h 01mBritish Airways

Deal found 3/30

$499

Fri 5/21:15 pmDUB - DCA

1 stop14h 30mKLM

Sat 5/3112:00 pmDCA - DUB

1 stop14h 45mKLM

Deal found 3/30

$500

Tue 5/61:20 pmDUB - DCA

2 stops13h 44mDelta

Tue 5/136:55 pmDCA - DUB

1 stop10h 50mDelta

Deal found 3/31

$513

Wed 4/3011:45 amDUB - DCA

1 stop11h 14mAmerican Airlines

Tue 6/31:44 pmDCA - DUB

1 stop10h 46mAmerican Airlines

Deal found 3/30

$518

Fri 5/231:05 pmSNN - DCA

1 stop14h 40mKLM

Tue 5/275:00 pmDCA - SNN

1 stop13h 10mKLM

Deal found 3/30

$533

Tue 4/2910:40 amDUB - DCA

1 stop11h 19mJetBlue

Thu 5/296:45 pmDCA - DUB

1 stop9h 15mJetBlue

Deal found 3/30

$583

Wed 5/149:15 amDUB - DCA

2 stops18h 21mMultiple Airlines

Wed 5/2111:40 amDCA - DUB

2 stops16h 20mMultiple Airlines

Deal found 3/30

$591

Tue 5/69:50 amDUB - DCA

1 stop14h 53mAir Canada

Sun 5/1812:55 pmDCA - DUB

2 stops14h 20mAir Canada

Deal found 3/31

$614

Tue 5/69:50 amDUB - DCA

1 stop14h 53mUnited Airlines

Sun 5/183:20 pmDCA - DUB

1 stop11h 00mUnited Airlines

Deal found 3/30

$624

Mon 4/146:00 amORK - DCA

2 stops22h 10mDelta

Sun 4/203:50 pmDCA - ORK

2 stops19h 45mDelta

Deal found 3/31

$635

Fri 5/239:30 amSNN - DCA

1 stop11h 18mUnited Airlines

Tue 5/2712:00 pmDCA - SNN

1 stop14h 30mUnited Airlines

Deal found 3/30

$647

Best flights from Ireland to Reagan-National
Discover carefully curated flight deals from Ireland to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 31, 2025.

Fri 5/27:05 pmDUB - DCA

2 stops33h 34mScandinavian Airlines

Sat 5/316:05 amDCA - DUB

2 stops29h 05mScandinavian Airlines

Deal found 3/30

$477

Fri 5/28:15 pmDUB - DCA

2 stops24h 55mBritish Airways

Mon 5/55:44 amDCA - DUB

2 stops21h 01mBritish Airways

Deal found 3/30

$499

Fri 5/21:15 pmDUB - DCA

1 stop14h 30mKLM

Sat 5/3112:00 pmDCA - DUB

1 stop14h 45mKLM

Deal found 3/30

$500

Tue 5/65:55 amDUB - DCA

2 stops16h 15mDelta

Tue 5/132:59 pmDCA - DUB

1 stop14h 46mDelta

Deal found 3/30

$513

Wed 4/309:30 amDUB - DCA

2 stops13h 29mAmerican Airlines

Tue 6/38:22 amDCA - DUB

1 stop16h 08mAmerican Airlines

Deal found 3/30

$518

Tue 4/2910:40 amDUB - DCA

1 stop11h 19mJetBlue

Thu 5/296:45 pmDCA - DUB

1 stop9h 15mJetBlue

Deal found 3/30

$583

Wed 5/149:15 amDUB - DCA

2 stops18h 21mMultiple Airlines

Wed 5/2111:40 amDCA - DUB

2 stops16h 20mMultiple Airlines

Deal found 3/30

$591

Tue 5/69:50 amDUB - DCA

1 stop14h 53mAir Canada

Sun 5/1812:55 pmDCA - DUB

2 stops14h 20mAir Canada

Deal found 3/31

$614

Tue 5/69:50 amDUB - DCA

1 stop14h 53mUnited Airlines

Sun 5/183:20 pmDCA - DUB

1 stop11h 00mUnited Airlines

Deal found 3/30

$624

Fri 5/91:15 pmDUB - DCA

1 stop14h 30mAir France

Sun 5/255:00 pmDCA - DUB

1 stop11h 15mAir France

Deal found 3/31

$688

Wed 6/2512:15 pmDUB - DCA

2 stops26h 26mIcelandair

Wed 7/308:00 amDCA - DUB

2 stops24h 15mIcelandair

Deal found 3/31

$804

Fri 5/231:45 pmSNN - DCA

1 stop11h 15mAer Lingus

Tue 5/277:00 amDCA - SNN

1 stop17h 25mAer Lingus

Deal found 3/30

$880

Last-minute flights from Ireland to Reagan-National
Discover last-minute flight deals from Ireland to Reagan-National. Data last updated March 31, 2025 and is based on user searches.

Thu 4/39:50 amDUB - DCA

1 stop17h 38mUnited Airlines

Fri 4/257:18 pmDCA - DUB

1 stop10h 52mUnited Airlines

Deal found 3/30

$699

Fri 4/47:05 pmDUB - DCA

2 stops33h 34mScandinavian Airlines

Tue 4/291:25 pmDCA - DUB

2 stops17h 25mScandinavian Airlines

Deal found 3/30

$666

Sat 4/59:50 amDUB - DCA

2 stops16h 18mAir Canada

Sat 4/128:40 pmDCA - DUB

1 stop30h 35mAir Canada

Deal found 3/29

$699

Sun 4/69:30 amDUB - DCA

1 stop31h 16mAmerican Airlines

Mon 4/141:44 pmDCA - DUB

1 stop10h 46mAmerican Airlines

Deal found 3/30

$520

Sun 4/69:15 amDUB - DCA

2 stops59h 41mIberia

Mon 4/1412:30 pmDCA - DUB

2 stops15h 20mIberia

Deal found 3/30

$807

Sun 4/610:45 amDUB - DCA

2 stops26h 40mTAP AIR PORTUGAL

Mon 4/145:00 pmDCA - DUB

2 stops20h 05mTAP AIR PORTUGAL

Deal found 3/30

$1,895

Thu 4/105:55 amDUB - DCA

2 stops17h 14mDelta

Thu 4/1710:19 amDCA - DUB

1 stop17h 26mDelta

Deal found 3/30

$513

Thu 4/1012:00 pmDUB - DCA

1 stop12h 56mKLM

Thu 4/174:31 pmDCA - DUB

1 stop11h 44mKLM

Deal found 3/31

$606

Thu 4/102:15 pmDUB - DCA

2 stops23h 10mIcelandair

Thu 4/179:00 amDCA - DUB

2 stops21h 05mIcelandair

Deal found 3/31

$1,611

Sat 4/125:10 pmORK - DCA

2 stops31h 06mKLM

Fri 4/184:31 pmDCA - ORK

2 stops19h 04mKLM

Deal found 3/31

$855

Sun 4/1311:35 amDUB - DCA

1 stop12h 26mMultiple Airlines

Sun 4/206:00 pmDCA - DUB

1 stop10h 45mMultiple Airlines

Deal found 3/30

$644

Mon 4/145:55 amDUB - DCA

2 stops17h 04mDelta

Sun 4/2010:19 amDCA - DUB

1 stop17h 26mDelta

Deal found 3/31

$513

One-way flights from Ireland to Reagan-National
Search for one-way flight options from Ireland to Reagan-National. Find affordable one-way fares based on user searches. Data last updated March 31, 2025.

Sat 5/311:30 amDUB - DCA

1 stop11h 33mMultiple Airlines

Deal found 3/30

$427

Wed 5/711:30 amDUB - DCA

2 stops14h 18mWestJet

Deal found 3/31

$452

Wed 5/711:30 amDUB - DCA

1 stop16h 28mJetBlue

Deal found 3/31

$466

Wed 8/2012:40 pmDUB - DCA

2 stops39h 48mScandinavian Airlines

Deal found 3/31

$506

Wed 9/312:15 pmDUB - DCA

2 stops26h 29mIcelandair

Deal found 3/31

$530

Tue 5/205:35 pmORK - DCA

3 stops34h 10mMultiple Airlines

Deal found 3/31

$589

Fri 9/512:45 pmDUB - DCA

2 stops15h 15mBritish Airways

Deal found 3/30

$590

Sun 5/1811:45 amDUB - DCA

1 stop13h 50mAmerican Airlines

Deal found 3/30

$598

Sun 8/319:15 amDUB - DCA

2 stops18h 46mIberia

Deal found 3/30

$599

Tue 5/206:00 amORK - DCA

2 stops17h 59mKLM

Deal found 3/31

$626

Mon 5/261:05 pmSNN - DCA

1 stop14h 40mKLM

Deal found 3/30

$627

Sun 6/112:00 pmDUB - DCA

1 stop15h 01mDelta

Deal found 3/30

$643

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 5/2

7:05 pm-11:39 pm

2 stops33h 34m

Washington, D.C. Reagan-National

Sat 5/31

6:05 am-4:10 pm

2 stops29h 05m

$477

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 5/2

8:15 pm-4:10 pm

2 stops24h 55m

Washington, D.C. Reagan-National

Mon 5/5

5:44 am-7:45 am

2 stops21h 01m

$499

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 5/2

1:15 pm-10:45 pm

1 stop14h 30m

Washington, D.C. Reagan-National

Sat 5/31

12:00 pm-7:45 am

1 stop14h 45m

$500

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 5/6

5:55 am-5:10 pm

2 stops16h 15m

Washington, D.C. Reagan-National

Tue 5/13

2:59 pm-10:45 am

1 stop14h 46m

$513

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 4/30

9:30 am-5:59 pm

2 stops13h 29m

Washington, D.C. Reagan-National

Tue 6/3

8:22 am-5:30 am

1 stop16h 08m

$518

ShannonWashington, D.C.

SNN - DCA

SNNDCA

Shannon

Fri 5/23

1:05 pm-11:43 pm

2 stops15h 38m

Washington, D.C. Reagan-National

Tue 5/27

1:53 pm-11:10 am

2 stops16h 17m

$533

ShannonWashington, D.C.

SNN - DCA

SNNDCA

Shannon

Fri 5/23

1:05 pm-11:43 pm

2 stops15h 38m

Washington, D.C. Reagan-National

Tue 5/27

5:00 pm-11:10 am

1 stop13h 10m

$542

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 4/29

10:40 am-4:59 pm

1 stop11h 19m

Washington, D.C. Reagan-National

Thu 5/29

6:45 pm-9:00 am

1 stop9h 15m

$583

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 5/14

9:15 am-10:36 pm

2 stops18h 21m

Washington, D.C. Reagan-National

Wed 5/21

11:40 am-9:00 am

2 stops16h 20m

$591

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 5/6

9:50 am-7:43 pm

1 stop14h 53m

Washington, D.C. Reagan-National

Sun 5/18

12:55 pm-8:15 am

2 stops14h 20m

$614

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 41 results

...

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Ireland 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 Ireland to Washington, D.C. Reagan-National Airport

Rainfall in Reagan-National by month

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

Temperature in Reagan-National by month

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Reagan-National

To help decide which airline to fly from Ireland to Washington, D.C., see what other customers have to say about Delta, KLM and Air France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,899 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France

7.4

Good

1,425 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,614 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

JetBlue

7.3

Good

2,924 reviews

Delta

8.0

Very good

7,899 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from Ireland to Washington, D.C. Reagan-National Airport one-way?
For one-way options, check prices for WestJet. According to our data, you can fly for as low as $452. Users have also found prices from $466 and $506 on JetBlue and Scandinavian Airlines, respectively.
What are the most popular routes from Ireland to Washington, D.C. Reagan-National Airport?
When deciding which route to take from Ireland to Washington, D.C. Reagan-National Airport consider Dublin - Washington, D.C. Reagan-National, Shannon - Washington, D.C. Reagan-National or Cork - Washington, D.C. Reagan-National as they are the most popular.
Can I find deals for flights from Ireland to Reagan-National that include hotel bookings?
Yes. In addition to deals on Ireland to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ireland to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Reagan-National.
Can I find deals for business class flights from Ireland to Reagan-National?
Yes. Cheapflights offers flight deals from Ireland to Reagan-National 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 Ireland to Washington, D.C. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from Ireland to Washington, D.C. Reagan-National Airport (average of $278). Flying from Ireland to Washington, D.C. Reagan-National Airport in June is currently the most expensive (average of $345). 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

Arlington

Alexandria

Fairfax

Tysons

Springfield

Rockville

Woodbridge

Gaithersburg

Fredericksburg

Linthicum Heights

Silver Spring

Falls Church

Laurel

Easton

Herndon

Bowie

Gettysburg

National Harbor

Oxon Hill

Reston

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$427+ Cheap flights from Ireland to Reagan-National (DCA)

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ireland to Reagan-National with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheap flight deals from Ireland to Reagan-National

Keep the following information in mind while searching for Ireland to Reagan-National flight deals. Data was last updated March 31, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ireland to Reagan-National

Cheapest flights from Ireland to Reagan-NationalExplore the most affordable flight options available from Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

Explore the most affordable flight options available from Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ireland to Washington, D.C. Reagan-National Airport that are best for you.

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Ireland with our price prediction graph.

Cheapflights Insights

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

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

Reviews of airlines servicing Reagan-National

To help decide which airline to fly from Ireland to Washington, D.C., see what other customers have to say about Delta, KLM and Air France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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

Traveling to a place near Ireland?

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Alternative routes for Ireland to Reagan-National

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Cheapest flights from Ireland to Reagan-National
Explore the most affordable flight options available from Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.