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 $421. Users have also found prices from $492 and $577 on British Airways and American 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 53 days in advance to save up to 109% 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 53 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 $722 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 $560. You can even find prices in January for less than $560, 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 35%.

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.

$722+ Save on 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	$517 (American Airlines)
One-way from	$382 (Mytrip)
Popular in	July
Cheapest in	January
Average price	$505

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. 20% potential increase in price ($146 potential increase over avg. RT price).

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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 February 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 February 20, 2025.

Thu 2/278:50 amDUB - DCA

2 stops18h 10mDelta

Wed 3/510:35 amDCA - DUB

1 stop16h 50mDelta

Deal found 2/20

$503

Mon 4/149:30 amDUB - DCA

1 stop26h 19mAmerican Airlines

Sun 4/2010:15 pmDCA - DUB

1 stop27h 15mAmerican Airlines

Deal found 2/20

$517

Tue 4/18:20 pmDUB - DCA

2 stops24h 39mBritish Airways

Tue 4/156:30 amDCA - DUB

1 stop19h 00mBritish Airways

Deal found 2/19

$537

Thu 2/279:00 amDUB - DCA

1 stop11h 25mUnited Airlines

Wed 3/55:00 pmDCA - DUB

1 stop9h 00mUnited Airlines

Deal found 2/20

$570

Sat 3/86:00 amORK - DCA

2 stops16h 30mDelta

Wed 3/1211:39 amDCA - ORK

2 stops21h 16mDelta

Deal found 2/20

$581

Fri 4/412:30 pmSNN - DCA

1 stop27h 06mUnited Airlines

Tue 4/86:00 amDCA - SNN

1 stop23h 15mUnited Airlines

Deal found 2/20

$626

Fri 4/47:40 amSNN - DCA

2 stops32h 10mAmerican Airlines

Tue 4/85:09 pmDCA - SNN

2 stops18h 01mAmerican Airlines

Deal found 2/20

$640

Thu 2/277:45 amSNN - DCA

2 stops16h 30mBritish Airways

Mon 3/34:10 pmDCA - SNN

2 stops14h 20mBritish Airways

Deal found 2/20

$642

Tue 4/12:40 pmSNN - DCA

1 stop13h 25mMultiple Airlines

Mon 4/76:05 pmDCA - SNN

2 stops17h 05mMultiple Airlines

Deal found 2/20

$647

Tue 5/612:15 pmDUB - DCA

2 stops33h 37mIcelandair

Tue 6/243:00 pmDCA - DUB

2 stops15h 05mIcelandair

Deal found 2/19

$669

Thu 10/29:45 amDUB - DCA

2 stops18h 15mFinnair

Mon 10/67:45 pmDCA - DUB

2 stops16h 30mFinnair

Deal found 2/20

$674

Mon 11/102:05 pmDUB - DCA

1 stop21h 54mMultiple Airlines

Fri 11/144:40 pmDCA - DUB

1 stop11h 00mMultiple Airlines

Deal found 2/20

$677

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 February 20, 2025.

Mon 4/149:30 amDUB - DCA

1 stop26h 19mAmerican Airlines

Sun 4/2010:15 pmDCA - DUB

1 stop27h 15mAmerican Airlines

Deal found 2/20

$517

Tue 4/18:20 pmDUB - DCA

2 stops24h 39mBritish Airways

Tue 4/156:30 amDCA - DUB

1 stop19h 00mBritish Airways

Deal found 2/19

$537

Tue 4/16:00 amDUB - DCA

2 stops16h 08mDelta

Mon 4/76:55 pmDCA - DUB

2 stops15h 05mDelta

Deal found 2/20

$562

Fri 4/1111:35 amDUB - DCA

1 stop11h 26mUnited Airlines

Sun 4/205:00 pmDCA - DUB

1 stop11h 45mUnited Airlines

Deal found 2/20

$626

Tue 4/12:40 pmSNN - DCA

1 stop13h 25mMultiple Airlines

Mon 4/76:05 pmDCA - SNN

2 stops17h 05mMultiple Airlines

Deal found 2/20

$647

Tue 5/612:15 pmDUB - DCA

2 stops33h 37mIcelandair

Tue 6/243:00 pmDCA - DUB

2 stops15h 05mIcelandair

Deal found 2/19

$669

Thu 6/2610:00 amDUB - DCA

1 stop14h 18mKLM

Wed 7/95:00 pmDCA - DUB

1 stop12h 45mKLM

Deal found 2/20

$678

Thu 6/269:20 amDUB - DCA

2 stops15h 32mAir Canada

Wed 7/912:55 pmDCA - DUB

2 stops13h 50mAir Canada

Deal found 2/20

$722

Thu 3/134:25 amDUB - DCA

2 stops20h 34mTAP AIR PORTUGAL

Thu 3/2011:04 amDCA - DUB

2 stops25h 06mTAP AIR PORTUGAL

Deal found 2/20

$1,071

Sat 3/86:00 amORK - DCA

2 stops16h 30mDelta

Wed 3/1211:39 amDCA - ORK

2 stops21h 16mDelta

Deal found 2/20

$581

Fri 4/412:30 pmSNN - DCA

1 stop27h 06mUnited Airlines

Tue 4/86:00 amDCA - SNN

1 stop23h 15mUnited Airlines

Deal found 2/20

$626

Fri 4/47:40 amSNN - DCA

2 stops32h 10mAmerican Airlines

Tue 4/83:59 pmDCA - SNN

2 stops19h 11mAmerican Airlines

Deal found 2/20

$640

Last-minute flights from Ireland to Reagan-National
Discover last-minute flight deals from Ireland to Reagan-National. Data last updated February 20, 2025 and is based on user searches.

Mon 2/241:10 pmDUB - DCA

1 stop11h 21mAer Lingus

Tue 2/2511:06 amDCA - DUB

1 stop12h 59mAer Lingus

Deal found 2/20

$907

Tue 2/252:05 pmDUB - DCA

1 stop11h 15mAmerican Airlines

Tue 3/44:10 pmDCA - DUB

1 stop11h 30mAmerican Airlines

Deal found 2/20

$621

Tue 2/255:00 amDUB - DCA

2 stops15h 29mMultiple Airlines

Tue 3/411:10 amDCA - DUB

2 stops15h 00mMultiple Airlines

Deal found 2/20

$710

Wed 2/2611:30 amDUB - DCA

2 stops32h 35mIcelandair

Wed 3/512:29 pmDCA - DUB

2 stops16h 46mIcelandair

Deal found 2/19

$685

Wed 2/264:25 amDUB - DCA

2 stops22h 06mTAP AIR PORTUGAL

Thu 3/611:04 amDCA - DUB

2 stops24h 06mTAP AIR PORTUGAL

Deal found 2/20

$1,102

Thu 2/278:50 amDUB - DCA

2 stops18h 10mDelta

Wed 3/510:35 amDCA - DUB

1 stop16h 50mDelta

Deal found 2/20

$503

Thu 2/279:00 amDUB - DCA

1 stop11h 25mUnited Airlines

Wed 3/55:00 pmDCA - DUB

1 stop9h 00mUnited Airlines

Deal found 2/20

$570

Thu 2/277:45 amSNN - DCA

2 stops16h 30mBritish Airways

Mon 3/34:10 pmDCA - SNN

2 stops14h 20mBritish Airways

Deal found 2/20

$642

Thu 2/279:45 amDUB - DCA

2 stops17h 50mFinnair

Wed 3/57:05 pmDCA - DUB

2 stops17h 15mFinnair

Deal found 2/20

$959

Fri 2/289:00 amDUB - DCA

1 stop15h 57mAir Canada

Thu 3/611:10 amDCA - DUB

2 stops15h 00mAir Canada

Deal found 2/20

$1,013

Sat 3/86:00 amORK - DCA

2 stops16h 30mDelta

Wed 3/1211:39 amDCA - ORK

2 stops21h 16mDelta

Deal found 2/20

$581

Thu 3/134:25 amDUB - DCA

2 stops20h 34mTAP AIR PORTUGAL

Thu 3/2011:04 amDCA - DUB

2 stops25h 06mTAP AIR PORTUGAL

Deal found 2/20

$1,071

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 February 20, 2025.

Mon 4/2111:30 amDUB - DCA

2 stops29h 31mMultiple Airlines

Deal found 2/20

$382

Wed 5/711:30 amDUB - DCA

2 stops16h 27mWestJet

Deal found 2/20

$421

Wed 5/711:45 amDUB - DCA

1 stop11h 15mBritish Airways

Deal found 2/20

$492

Wed 3/262:05 pmDUB - DCA

1 stop10h 10mAmerican Airlines

Deal found 2/20

$577

Thu 2/274:25 amDUB - DCA

2 stops22h 06mTAP AIR PORTUGAL

Deal found 2/20

$610

Wed 3/2611:30 amDUB - DCA

2 stops31h 34mIcelandair

Deal found 2/20

$659

Tue 3/257:40 amORK - DCA

2 stops18h 50mBritish Airways

Deal found 2/19

$662

Tue 3/259:50 pmORK - DCA

3 stops45h 14mMultiple Airlines

Deal found 2/19

$700

Sat 4/266:20 amDUB - DCA

2 stops17h 28mIberia

Deal found 2/20

$1,809

Sat 4/2611:50 amDUB - DCA

1 stop14h 09mJetBlue

Deal found 2/20

$1,950

Find flights from Ireland to Reagan-National within your budget

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Mon 4/14

9:30 am-6:49 am

1 stop26h 19m

Washington, D.C. Reagan-National

Sun 4/20

10:15 pm-6:30 am

1 stop27h 15m

$517

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 4/1

8:20 pm-3:59 pm

2 stops24h 39m

Washington, D.C. Reagan-National

Tue 4/15

6:30 am-6:30 am

1 stop19h 00m

$537

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 4/1

6:00 am-5:08 pm

2 stops16h 08m

Washington, D.C. Reagan-National

Mon 4/7

6:55 pm-3:00 pm

2 stops15h 05m

$562

CorkWashington, D.C.

ORK - DCA

ORKDCA

Cork

Sat 3/8

6:00 am-5:30 pm

2 stops16h 30m

Washington, D.C. Reagan-National

Wed 3/12

11:39 am-12:55 pm

2 stops21h 16m

$581

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 4/11

11:35 am-6:01 pm

1 stop11h 26m

Washington, D.C. Reagan-National

Sun 4/20

5:00 pm-9:45 am

1 stop11h 45m

$626

ShannonWashington, D.C.

SNN - DCA

SNNDCA

Shannon

Fri 4/4

12:30 pm-10:36 am

1 stop27h 06m

Washington, D.C. Reagan-National

Tue 4/8

6:00 am-10:15 am

1 stop23h 15m

$626

ShannonWashington, D.C.

SNN - DCA

SNNDCA

Shannon

Fri 4/4

7:40 am-10:50 am

2 stops32h 10m

Washington, D.C. Reagan-National

Tue 4/8

3:59 pm-4:10 pm

2 stops19h 11m

$640

ShannonWashington, D.C.

SNN - DCA

SNNDCA

Shannon

Tue 4/1

2:40 pm-11:05 pm

1 stop13h 25m

Washington, D.C. Reagan-National

Mon 4/7

6:05 pm-4:10 pm

2 stops17h 05m

$647

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 5/6

12:15 pm-4:52 pm

2 stops33h 37m

Washington, D.C. Reagan-National

Tue 6/24

3:00 pm-11:05 am

2 stops15h 05m

$669

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 6/26

10:00 am-7:18 pm

1 stop14h 18m

Washington, D.C. Reagan-National

Wed 7/9

5:00 pm-10:45 am

1 stop12h 45m

$678

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 25 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.

Travel insights for flights from Ireland to Reagan-National

Get recent, data-driven insights about flights from Ireland to Reagan-National including ideal travel times, pricing trends, and more.

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 JetBlue. 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

8,219 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

8,219 reviews

Delta

8.0

Very good

8,219 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

1,333 reviews

Delta

8.0

Very good

8,219 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

7.4

Good

3,070 reviews

Delta

8.0

Very good

8,219 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

8,765 reviews

Delta

8.0

Very good

8,219 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

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,219 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 $421. Users have also found prices from $492 and $577 on British Airways and American 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

Springfield

Rockville

Tysons

Gaithersburg

Silver Spring

Fredericksburg

Linthicum Heights

Laurel

Falls Church

Woodbridge

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Bowie

Reston

National Harbor

Oxon Hill

Gettysburg

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$382+ 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 4/21. 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

2. Select your favorite providers

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 February 20, 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 February 20, 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 February 20, 2025.

Find flights from Ireland to Reagan-National within your budget

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.

Travel insights for flights from Ireland to Reagan-National

Get recent, data-driven insights about flights from Ireland to Reagan-National including ideal travel times, pricing trends, and more.

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 JetBlue. 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 February 20, 2025.