How long is the flight from Northern Ireland to Washington, D.C.?

A quick flight from Northern Ireland to Washington, D.C. can take about 17h 03m. British Airways provides one of the quickest options available for as low as $956. The distance from Northern Ireland to Washington, D.C. is about 3390 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

In terms of precipitation, rainfall in Washington, D.C. 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. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., 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 Northern Ireland to Washington, D.C.?

The most popular route from Northern Ireland to Washington, D.C. is Belfast Intl - Baltimore/Washington. You may also consider Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Baltimore/Washington.

What is the cheapest time of day to fly from NIR to WAS?

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

How can I find direct flights from Northern Ireland to Washington, D.C.?

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

Can I find deals for business class flights from Northern Ireland to Washington, D.C.?

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

$369+ Flights from Northern Ireland to Washington, D.C.

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Find flight deals from Northern Ireland to Washington, D.C.

Cheapest flights from Northern Ireland to Washington, D.C.
Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

Thu 12/46:35 amBHD - DCA

2 stops16h 08mAmerican Airlines

Mon 12/812:08 pmDCA - BHD

2 stops17h 32mAmerican Airlines

Deal found 11/18

$985

Thu 11/2011:05 amBHD - IAD

1 stop33h 30mAmerican Airlines

Mon 11/249:45 pmIAD - BHD

1 stop13h 20mAmerican Airlines

Deal found 11/17

$1,384

Thu 11/2010:35 amBHD - IAD

2 stops13h 55mBritish Airways

Mon 11/249:45 pmIAD - BHD

2 stops13h 35mBritish Airways

Deal found 11/17

$1,588

Best flights from Northern Ireland to Washington, D.C.
Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 20, 2025.

Wed 3/46:35 amBHD - IAD

1 stop18h 20mBritish Airways

Wed 3/1110:45 pmIAD - BHD

1 stop13h 50mBritish Airways

Deal found 11/18

$906

Wed 3/411:25 amBHD - IAD

2 stops17h 03mAmerican Airlines

Wed 3/1110:45 pmIAD - BHD

1 stop11h 30mAmerican Airlines

Deal found 11/18

$956

Wed 3/46:30 amBHD - IAD

2 stops15h 00mKLM

Wed 3/117:59 pmIAD - BHD

2 stops16h 51mKLM

Deal found 11/18

$964

Sat 1/310:25 pmBFS - IAD

2 stops22h 10mMultiple Airlines

Sat 1/105:30 pmIAD - BFS

3 stops24h 10mMultiple Airlines

Deal found 11/19

$1,068

Thu 1/229:05 amBHD - IAD

1 stop11h 30mAmerican Airlines

Mon 1/265:46 pmIAD - BHD

2 stops19h 49mAmerican Airlines

Deal found 11/19

$959

Thu 1/229:05 amBHD - IAD

1 stop15h 50mBritish Airways

Mon 1/269:45 pmIAD - BHD

1 stop13h 20mBritish Airways

Deal found 11/19

$962

Thu 1/2210:40 amBHD - DCA

2 stops16h 35mAmerican Airlines

Mon 1/265:55 pmDCA - BHD

2 stops15h 20mAmerican Airlines

Deal found 11/19

$964

Wed 5/131:50 pmBHD - BWI

1 stop10h 50mBritish Airways

Mon 5/259:30 pmBWI - BHD

1 stop13h 10mBritish Airways

Deal found 11/20

$1,010

Thu 1/299:05 amBHD - BWI

1 stop14h 40mAmerican Airlines

Mon 2/22:46 pmBWI - BHD

2 stops18h 29mAmerican Airlines

Deal found 11/18

$975

Thu 1/223:05 pmBHD - BWI

1 stop32h 40mBritish Airways

Sun 1/258:35 pmBWI - BHD

1 stop12h 20mBritish Airways

Deal found 11/19

$1,015

Sat 1/36:00 amBFS - BWI

3 stops32h 27mMultiple Airlines

Sat 1/1011:30 amBWI - BFS

2 stops25h 10mMultiple Airlines

Deal found 11/19

$1,300

Thu 12/46:35 amBHD - DCA

2 stops16h 08mAmerican Airlines

Mon 12/812:08 pmDCA - BHD

2 stops17h 32mAmerican Airlines

Deal found 11/18

$985

Thu 1/229:05 amBHD - BWI

1 stop14h 40mAmerican Airlines

Sun 1/256:31 pmBWI - BHD

2 stops35h 09mAmerican Airlines

Deal found 11/19

$990

Thu 1/226:35 amBHD - IAD

1 stop14h 00mAmerican Airlines

Sun 1/255:46 pmIAD - BHD

2 stops18h 04mAmerican Airlines

Deal found 11/19

$998

Sat 1/39:40 amBFS - DCA

2 stops29h 41mMultiple Airlines

Sat 1/104:10 pmDCA - BFS

2 stops22h 45mMultiple Airlines

Deal found 11/19

$2,183

Wed 4/16:50 amBHD - DCA

2 stops14h 39mAmerican Airlines

Sun 4/54:04 pmDCA - BHD

2 stops14h 26mAmerican Airlines

Deal found 11/18

$1,700

Last-minute flights from Northern Ireland to Washington, D.C.
Discover last-minute flight deals from Northern Ireland to Washington, D.C.. Data last updated November 20, 2025 and is based on user searches.

Thu 11/2011:05 amBHD - IAD

1 stop33h 30mAmerican Airlines

Mon 11/249:45 pmIAD - BHD

1 stop13h 20mAmerican Airlines

Deal found 11/17

$1,384

Thu 11/2010:35 amBHD - IAD

2 stops13h 55mBritish Airways

Mon 11/249:45 pmIAD - BHD

2 stops13h 35mBritish Airways

Deal found 11/17

$1,588

Thu 12/46:35 amBHD - DCA

2 stops16h 08mAmerican Airlines

Mon 12/812:08 pmDCA - BHD

2 stops17h 32mAmerican Airlines

Deal found 11/18

$985

One-way flights from Northern Ireland to Washington, D.C.
Search for one-way flight options from Northern Ireland to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated November 20, 2025.

Mon 1/1910:05 amBHD - IAD

3 stops35h 25mMultiple Airlines

Deal found 11/18

$369

Cheap flight deals from Northern Ireland to Washington, D.C.

Round-trip from	$946 (British Airways)
One-way from	$369 (Kiwi.com)

From Northern Ireland to Washington, D.C. (WAS)

Search Deals

One-way flight from Northern Ireland to Washington, D.C. (WAS)

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 3/4

6:35 am-7:55 pm

1 stop18h 20m

Washington, D.C. Dulles Intl

Wed 3/11

10:45 pm-4:35 pm

1 stop13h 50m

$906

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 3/4

11:25 am-11:28 pm

2 stops17h 03m

Washington, D.C. Dulles Intl

Wed 3/11

10:45 pm-2:15 pm

1 stop11h 30m

$956

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 1/22

9:05 am-3:35 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 1/26

5:46 pm-6:35 pm

2 stops19h 49m

$959

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 1/22

9:05 am-7:55 pm

1 stop15h 50m

Washington, D.C. Dulles Intl

Mon 1/26

9:45 pm-4:05 pm

1 stop13h 20m

$962

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 3/4

6:30 am-4:30 pm

2 stops15h 00m

Washington, D.C. Dulles Intl

Wed 3/11

7:59 pm-4:50 pm

2 stops16h 51m

$964

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 1/22

10:40 am-10:15 pm

2 stops16h 35m

Washington, D.C. Reagan-National

Mon 1/26

5:55 pm-2:15 pm

2 stops15h 20m

$964

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 1/29

9:05 am-6:45 pm

1 stop14h 40m

Baltimore/Washington

Mon 2/2

2:46 pm-2:15 pm

2 stops18h 29m

$975

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 12/4

6:35 am-5:43 pm

2 stops16h 08m

Washington, D.C. Reagan-National

Mon 12/8

12:08 pm-10:40 am

2 stops17h 32m

$985

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Thu 1/22

9:05 am-6:45 pm

1 stop14h 40m

Baltimore/Washington

Sun 1/25

6:31 pm-10:40 am

2 stops35h 09m

$990

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 1/22

6:35 am-3:35 pm

1 stop14h 00m

Washington, D.C. Dulles Intl

Sun 1/25

5:46 pm-4:50 pm

2 stops18h 04m

$998

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 17 results

Best time to book a flight from Northern Ireland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Northern 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 Northern Ireland to Washington, D.C.

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

Related info for your journey

How long is the flight from Northern Ireland to Washington, D.C.?
A quick flight from Northern Ireland to Washington, D.C. can take about 17h 03m. British Airways provides one of the quickest options available for as low as $956. The distance from Northern Ireland to Washington, D.C. is about 3390 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the most popular routes from Northern Ireland to Washington, D.C.?
The most popular route from Northern Ireland to Washington, D.C. is Belfast Intl - Baltimore/Washington. You may also consider Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Baltimore/Washington.
Can I find deals for flights from Northern Ireland to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Northern Ireland to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Washington, D.C..
Can I find deals for business class flights from Northern Ireland to Washington, D.C.?
Yes. Cheapflights offers flight deals from Northern Ireland to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alexandria

Tysons

Woodbridge

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fairfax

Fredericksburg

Falls Church

Linthicum Heights

Manassas

Laurel

Towson

National Harbor

Waldorf

Bowie

Largo

McLean

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$369+ Cheap flights from Northern Ireland to Washington, D.C. (WAS)

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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Northern Ireland to Washington, D.C. with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Northern Ireland to Washington, D.C.

Cheapest flights from Northern Ireland to Washington, D.C.Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.

Cheap flight deals from Northern Ireland to Washington, D.C.

Keep the following information in mind while searching for Northern Ireland to Washington, D.C. flight deals. Data was last updated November 20, 2025.

Round-trip from

One-way from

Cheapflights Fare Finder

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

Best time to book a flight from Northern Ireland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Northern Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Washington, D.C.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Washington, D.C.. 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 Northern Ireland to Washington, D.C.?

What are the most popular routes from Northern Ireland to Washington, D.C.?

Can I find deals for flights from Northern Ireland to Washington, D.C. that include hotel bookings?

How can I find direct flights from Northern Ireland to Washington, D.C.?

Can I find deals for business class flights from Northern Ireland to Washington, D.C.?

Traveling to a place near Washington, D.C.?

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Alternative routes for Northern Ireland to Washington, D.C.

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Cheapest flights from Northern Ireland to Washington, D.C.
Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2025.