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.

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).

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, Cork - Washington, D.C. Reagan-National or Shannon - Washington, D.C. Reagan-National as they are the most popular.

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.

$454+ Flights from Ireland to Washington, D.C. Reagan-National Airport

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Cheap 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 December 21, 2025.

Fri 12/2611:30 amDUB - DCA

1 stop10h 05mMultiple Airlines

Thu 1/14:59 pmDCA - DUB

1 stop10h 41mMultiple Airlines

Deal found 12/19

$549

Fri 12/2611:30 amDUB - DCA

1 stop10h 05mMultiple Airlines

Wed 12/311:44 pmDCA - DUB

1 stop13h 56mMultiple Airlines

Deal found 12/20

$711

Fri 12/269:30 amDUB - DCA

1 stop10h 59mUnited Airlines

Thu 1/112:59 pmDCA - DUB

2 stops13h 11mUnited Airlines

Deal found 12/19

$769

Fri 12/269:00 amDUB - DCA

2 stops19h 59mUnited Airlines

Wed 12/311:00 pmDCA - DUB

1 stop14h 10mUnited Airlines

Deal found 12/20

$786

Sun 12/219:30 amDUB - DCA

1 stop10h 21mUnited Airlines

Sun 1/42:00 pmDCA - DUB

1 stop13h 10mUnited Airlines

Deal found 12/18

$803

Sat 12/201:35 pmDUB - DCA

1 stop30h 16mUnited Airlines

Thu 12/254:05 pmDCA - DUB

1 stop10h 25mUnited Airlines

Deal found 12/20

$879

Fri 12/191:35 pmDUB - DCA

1 stop24h 53mUnited Airlines

Tue 12/232:00 pmDCA - DUB

1 stop13h 10mUnited Airlines

Deal found 12/19

$880

Fri 12/199:45 amDUB - DCA

1 stop14h 45mDelta

Tue 12/238:20 amDCA - DUB

2 stops18h 25mDelta

Deal found 12/19

$884

Sun 12/215:55 amDUB - DCA

2 stops17h 24mDelta

Sun 1/412:55 pmDCA - DUB

1 stop15h 25mDelta

Deal found 12/18

$924

Fri 12/2611:15 amORK - DCA

2 stops16h 35mDelta

Wed 12/312:25 pmDCA - ORK

2 stops15h 20mDelta

Deal found 12/18

$928

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 December 21, 2025.

Sat 1/248:55 amDUB - DCA

2 stops17h 04mBritish Airways

Mon 2/912:10 pmDCA - DUB

2 stops16h 40mBritish Airways

Deal found 12/21

$494

Sat 1/249:45 amDUB - DCA

2 stops17h 13mMultiple Airlines

Mon 2/91:44 pmDCA - DUB

1 stop13h 56mMultiple Airlines

Deal found 12/20

$505

Mon 3/28:50 amDUB - DCA

2 stops16h 09mAmerican Airlines

Tue 3/104:35 pmDCA - DUB

1 stop12h 05mAmerican Airlines

Deal found 12/21

$512

Wed 3/410:20 amDUB - DCA

2 stops16h 45mBritish Airways

Sun 3/151:30 pmDCA - DUB

2 stops16h 20mBritish Airways

Deal found 12/21

$494

Thu 1/1511:30 amDUB - DCA

1 stop10h 20mMultiple Airlines

Thu 1/224:43 pmDCA - DUB

1 stop10h 57mMultiple Airlines

Deal found 12/20

$514

Fri 1/233:00 pmDUB - DCA

2 stops24h 03mBritish Airways

Mon 2/96:34 pmDCA - DUB

2 stops13h 01mBritish Airways

Deal found 12/21

$494

Mon 2/211:30 amDUB - DCA

1 stop10h 20mMultiple Airlines

Mon 2/94:43 pmDCA - DUB

1 stop10h 57mMultiple Airlines

Deal found 12/19

$514

Thu 3/510:30 amDUB - DCA

2 stops16h 35mBritish Airways

Fri 3/135:00 pmDCA - DUB

2 stops15h 05mBritish Airways

Deal found 12/21

$494

Thu 2/267:50 amSNN - DCA

2 stops16h 08mAmerican Airlines

Mon 3/21:44 pmDCA - SNN

2 stops16h 46mAmerican Airlines

Deal found 12/19

$653

Tue 3/38:50 amDUB - DCA

2 stops15h 08mBritish Airways

Fri 3/135:00 pmDCA - DUB

2 stops15h 05mBritish Airways

Deal found 12/21

$494

Thu 1/297:50 amSNN - DCA

2 stops30h 00mAmerican Airlines

Mon 2/24:43 pmDCA - SNN

2 stops13h 47mAmerican Airlines

Deal found 12/18

$654

Tue 3/38:50 amDUB - DCA

2 stops15h 08mBritish Airways

Sun 3/151:30 pmDCA - DUB

2 stops16h 20mBritish Airways

Deal found 12/21

$494

Wed 1/217:40 amORK - DCA

2 stops16h 56mAmerican Airlines

Sun 1/251:35 pmDCA - ORK

2 stops16h 35mAmerican Airlines

Deal found 12/19

$654

Tue 3/38:50 amDUB - DCA

2 stops15h 08mBritish Airways

Mon 3/94:35 pmDCA - DUB

2 stops13h 15mBritish Airways

Deal found 12/21

$494

Fri 1/92:45 pmSNN - DCA

2 stops23h 15mAmerican Airlines

Tue 1/131:59 pmDCA - SNN

2 stops16h 31mAmerican Airlines

Deal found 12/20

$656

Thu 2/52:45 pmSNN - DCA

1 stop12h 52mAmerican Airlines

Mon 2/93:30 pmDCA - SNN

1 stop9h 50mAmerican Airlines

Deal found 12/21

$675

Mon 1/1912:00 pmORK - DCA

3 stops39h 35mMultiple Airlines

Mon 1/264:15 pmDCA - ORK

3 stops17h 45mMultiple Airlines

Deal found 12/20

$875

Thu 2/57:50 amSNN - DCA

2 stops19h 13mBritish Airways

Mon 2/95:45 pmDCA - SNN

2 stops18h 00mBritish Airways

Deal found 12/21

$655

Fri 1/235:35 pmORK - DCA

2 stops28h 15mBritish Airways

Tue 1/274:43 pmDCA - ORK

2 stops13h 27mBritish Airways

Deal found 12/20

$656

Mon 1/197:40 amORK - DCA

2 stops16h 14mBritish Airways

Mon 1/264:43 pmDCA - ORK

2 stops13h 27mBritish Airways

Deal found 12/20

$666

Mon 1/197:50 amSNN - DCA

2 stops16h 46mBritish Airways

Mon 1/263:30 pmDCA - SNN

2 stops15h 00mBritish Airways

Deal found 12/20

$770

Last-minute flights from Ireland to Reagan-National
Discover last-minute flight deals from Ireland to Reagan-National. Data last updated December 21, 2025 and is based on user searches.

Mon 1/121:25 pmDUB - DCA

2 stops14h 23mDelta

Sun 1/185:00 pmDCA - DUB

2 stops17h 45mDelta

Deal found 12/20

$519

Thu 1/1511:30 amDUB - DCA

1 stop10h 20mMultiple Airlines

Tue 1/204:43 pmDCA - DUB

1 stop10h 57mMultiple Airlines

Deal found 12/18

$514

Thu 1/155:55 amDUB - DCA

2 stops16h 58mDelta

Wed 1/215:00 pmDCA - DUB

2 stops17h 45mDelta

Deal found 12/19

$520

Thu 1/155:55 amDUB - DCA

2 stops16h 58mDelta

Tue 1/205:00 pmDCA - DUB

2 stops17h 45mDelta

Deal found 12/18

$521

Thu 1/151:25 pmDUB - DCA

2 stops14h 23mKLM

Tue 1/205:00 pmDCA - DUB

1 stop10h 45mKLM

Deal found 12/18

$524

Fri 1/1611:30 amDUB - DCA

2 stops13h 35mAmerican Airlines

Mon 1/1910:10 amDCA - DUB

2 stops17h 30mAmerican Airlines

Deal found 12/20

$513

Fri 1/161:25 pmDUB - DCA

2 stops14h 23mDelta

Fri 1/235:00 pmDCA - DUB

1 stop10h 45mDelta

Deal found 12/19

$523

Sat 1/175:55 amDUB - DCA

2 stops17h 47mDelta

Sat 1/2411:10 amDCA - DUB

2 stops15h 40mDelta

Deal found 12/20

$522

Wed 1/217:40 amORK - DCA

2 stops16h 56mAmerican Airlines

Sun 1/251:35 pmDCA - ORK

2 stops16h 35mAmerican Airlines

Deal found 12/19

$654

Fri 1/233:00 pmDUB - DCA

2 stops24h 03mBritish Airways

Mon 2/96:34 pmDCA - DUB

2 stops13h 01mBritish Airways

Deal found 12/21

$494

Sat 1/249:45 amDUB - DCA

2 stops17h 13mMultiple Airlines

Mon 2/91:44 pmDCA - DUB

1 stop13h 56mMultiple Airlines

Deal found 12/20

$505

Thu 1/297:50 amSNN - DCA

2 stops30h 00mAmerican Airlines

Mon 2/24:43 pmDCA - SNN

2 stops13h 47mAmerican Airlines

Deal found 12/18

$654

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 December 21, 2025.

Sat 2/71:30 pmDUB - DCA

3 stops37h 33mMultiple Airlines

Deal found 12/20

$454

Sun 2/156:50 pmDUB - DCA

3 stops32h 15mMultiple Airlines

Deal found 12/20

$455

Thu 1/154:40 pmDUB - DCA

1 stop11h 19mMultiple Airlines

Deal found 12/20

$472

Fri 2/206:40 amDUB - DCA

2 stops14h 39mBritish Airways

Deal found 12/19

$478

Mon 2/97:50 amSNN - DCA

2 stops20h 05mBritish Airways

Deal found 12/19

$480

Sat 1/317:00 amDUB - DCA

3 stops40h 05mMultiple Airlines

Deal found 12/20

$484

Tue 2/36:00 amDUB - DCA

3 stops44h 59mMultiple Airlines

Deal found 12/21

$488

Sun 3/225:25 pmDUB - DCA

3 stops32h 05mMultiple Airlines

Deal found 12/19

$491

Fri 1/231:00 pmDUB - DCA

1 stop11h 45mAer Lingus

Deal found 12/20

$497

Mon 1/1211:30 amDUB - DCA

1 stop10h 20mMultiple Airlines

Deal found 12/21

$501

Thu 5/141:45 pmSNN - DCA

1 stop11h 14mMultiple Airlines

Deal found 12/19

$505

Thu 5/147:40 amSNN - DCA

2 stops15h 19mBritish Airways

Deal found 12/19

$522

Find flight deals from Ireland to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$494 (British Airways)
One-way from	$454 (Kiwi.com)
Popular in	August
Cheapest in	February
Average price	$616

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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($87 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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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

Sat 1/24

8:55 am-8:59 pm

2 stops17h 04m

Washington, D.C. Reagan-National

Mon 2/9

12:10 pm-9:50 am

2 stops16h 40m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 3/4

10:20 am-10:05 pm

2 stops16h 45m

Washington, D.C. Reagan-National

Sun 3/15

1:30 pm-9:50 am

2 stops16h 20m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Fri 1/23

3:00 pm-10:03 am

2 stops24h 03m

Washington, D.C. Reagan-National

Mon 2/9

6:34 pm-12:35 pm

2 stops13h 01m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 3/5

10:30 am-10:05 pm

2 stops16h 35m

Washington, D.C. Reagan-National

Fri 3/13

5:00 pm-12:05 pm

2 stops15h 05m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 3/3

8:50 am-6:58 pm

2 stops15h 08m

Washington, D.C. Reagan-National

Fri 3/13

5:00 pm-12:05 pm

2 stops15h 05m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 3/3

8:50 am-6:58 pm

2 stops15h 08m

Washington, D.C. Reagan-National

Sun 3/15

1:30 pm-9:50 am

2 stops16h 20m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Tue 3/3

8:50 am-6:58 pm

2 stops15h 08m

Washington, D.C. Reagan-National

Mon 3/9

4:35 pm-9:50 am

2 stops13h 15m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sat 1/24

9:45 am-9:58 pm

2 stops17h 13m

Washington, D.C. Reagan-National

Mon 2/9

1:44 pm-8:40 am

1 stop13h 56m

$505

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Mon 3/2

8:50 am-7:59 pm

2 stops16h 09m

Washington, D.C. Reagan-National

Tue 3/10

4:35 pm-8:40 am

1 stop12h 05m

$512

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Thu 1/15

11:30 am-4:50 pm

1 stop10h 20m

Washington, D.C. Reagan-National

Thu 1/22

4:43 pm-8:40 am

1 stop10h 57m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 36 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

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Ireland to Washington, D.C. Reagan-National Airport?
For as low as $653, British Airways can have you in Washington, D.C. Reagan-National Airport from Ireland in 16h 08m. Ireland and Washington, D.C. Reagan-National Airport are separated by a distance of 3284 mi. This flight may include one or multiple stops.
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, Cork - Washington, D.C. Reagan-National or Shannon - 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.

See more FAQs

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$454+ 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 2/7. 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

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Cheap 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 December 21, 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 December 21, 2025.

Find 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 December 21, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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.

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

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?

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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 December 21, 2025.