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 13h 50m. American Airlines provides one of the quickest options available for as low as $671. 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 is the cheapest month to book a flight from Northern Ireland to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of $292). Flying from Northern Ireland to Washington, D.C. in April is currently the most expensive (average of $337). 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.

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 - Washington, D.C. Reagan-National.

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.

$384+ Flights from Northern Ireland to Washington, D.C.

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

Round-trip from	$671 (American Airlines)
One-way from	$384 (Kiwi.com)

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

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

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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 September 16, 2025.

Thu 11/2011:05 amBHD - IAD

1 stop13h 50mAmerican Airlines

Mon 11/2411:25 amIAD - BHD

2 stops21h 50mAmerican Airlines

Deal found 9/13

$671

Thu 12/46:35 amBHD - DCA

2 stops14h 29mAmerican Airlines

Mon 12/87:48 pmDCA - BHD

2 stops17h 47mAmerican Airlines

Deal found 9/13

$677

Thu 10/96:30 amBHD - DCA

2 stops21h 29mDelta

Thu 10/167:55 pmDCA - BHD

2 stops16h 00mDelta

Deal found 9/15

$683

Thu 10/96:30 amBHD - IAD

1 stop14h 05mKLM

Thu 10/169:20 pmIAD - BHD

2 stops14h 35mKLM

Deal found 9/15

$703

Fri 10/109:45 pmBFS - BWI

3 stops24h 55mMultiple Airlines

Sun 10/126:50 pmBWI - BFS

2 stops23h 30mMultiple Airlines

Deal found 9/15

$709

Fri 10/105:25 pmBHD - BWI

3 stops29h 15mMultiple Airlines

Sun 10/126:50 pmBWI - BHD

3 stops21h 25mMultiple Airlines

Deal found 9/15

$729

Sun 10/126:50 amBHD - IAD

1 stop18h 30mMultiple Airlines

Sun 10/191:09 pmIAD - BHD

2 stops17h 21mMultiple Airlines

Deal found 9/14

$739

Thu 10/96:35 amBHD - BWI

2 stops16h 55mAmerican Airlines

Thu 10/169:35 pmBWI - BHD

1 stop12h 55mAmerican Airlines

Deal found 9/15

$745

Sun 10/1211:00 amBHD - IAD

2 stops17h 53mBritish Airways

Sun 10/195:41 pmIAD - BHD

2 stops15h 59mBritish Airways

Deal found 9/14

$745

Fri 10/106:30 amBHD - DCA

2 stops20h 37mVirgin Atlantic

Sun 10/124:50 pmDCA - BHD

2 stops47h 25mVirgin Atlantic

Deal found 9/15

$771

Fri 10/106:30 amBHD - IAD

1 stop14h 05mKLM

Sun 10/125:25 pmIAD - BHD

1 stop22h 50mKLM

Deal found 9/15

$772

Thu 10/304:15 pmBFS - IAD

3 stops33h 45mMultiple Airlines

Thu 11/65:30 pmIAD - BFS

2 stops23h 50mMultiple Airlines

Deal found 9/14

$788

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 September 16, 2025.

Thu 11/2011:05 amBHD - IAD

1 stop13h 50mAmerican Airlines

Mon 11/246:20 pmIAD - BHD

1 stop11h 20mAmerican Airlines

Deal found 9/13

$671

Thu 10/96:30 amBHD - DCA

2 stops21h 29mDelta

Thu 10/167:55 pmDCA - BHD

2 stops16h 00mDelta

Deal found 9/15

$683

Fri 10/109:45 pmBFS - BWI

3 stops24h 55mMultiple Airlines

Sun 10/126:50 pmBWI - BFS

2 stops23h 30mMultiple Airlines

Deal found 9/15

$709

Thu 10/96:30 amBHD - IAD

1 stop14h 05mKLM

Thu 10/165:25 pmIAD - BHD

1 stop22h 50mKLM

Deal found 9/15

$714

Sun 10/1211:00 amBHD - IAD

2 stops17h 53mBritish Airways

Sun 10/195:41 pmIAD - BHD

2 stops15h 59mBritish Airways

Deal found 9/14

$745

Fri 10/106:30 amBHD - DCA

2 stops20h 37mVirgin Atlantic

Sun 10/124:50 pmDCA - BHD

2 stops47h 25mVirgin Atlantic

Deal found 9/15

$771

Thu 12/46:35 amBHD - DCA

2 stops14h 29mAmerican Airlines

Mon 12/87:48 pmDCA - BHD

2 stops17h 47mAmerican Airlines

Deal found 9/13

$677

Sun 10/128:30 amBFS - BWI

2 stops14h 10mMultiple Airlines

Sun 10/196:50 pmBWI - BFS

2 stops22h 35mMultiple Airlines

Deal found 9/14

$709

Fri 10/106:30 amBHD - IAD

1 stop14h 05mKLM

Sun 10/125:25 pmIAD - BHD

1 stop22h 50mKLM

Deal found 9/15

$772

Fri 3/68:45 amBHD - BWI

1 stop15h 00mAmerican Airlines

Tue 3/109:35 pmBWI - BHD

1 stop9h 55mAmerican Airlines

Deal found 9/13

$713

Sun 10/126:50 amBHD - IAD

1 stop18h 30mMultiple Airlines

Sun 10/191:09 pmIAD - BHD

2 stops17h 21mMultiple Airlines

Deal found 9/14

$739

Sun 10/128:05 pmBHD - BWI

2 stops27h 25mBritish Airways

Sun 10/197:45 pmBWI - BHD

2 stops36h 10mBritish Airways

Deal found 9/14

$864

Fri 10/106:05 amBFS - IAD

2 stops21h 05mMultiple Airlines

Sun 10/128:30 pmIAD - BFS

2 stops18h 50mMultiple Airlines

Deal found 9/15

$793

Thu 10/91:15 pmBHD - BWI

1 stop11h 30mAmerican Airlines

Thu 10/169:35 pmBWI - BHD

1 stop12h 55mAmerican Airlines

Deal found 9/15

$819

Thu 10/306:30 amBFS - BWI

2 stops17h 10mMultiple Airlines

Thu 11/67:40 pmBWI - BFS

2 stops21h 40mMultiple Airlines

Deal found 9/14

$811

Sun 10/1211:00 amBHD - BWI

2 stops15h 54mMultiple Airlines

Sun 10/197:45 pmBWI - BHD

2 stops16h 55mMultiple Airlines

Deal found 9/14

$826

Thu 10/306:30 amBFS - IAD

2 stops17h 00mMultiple Airlines

Thu 11/67:40 pmIAD - BFS

2 stops21h 40mMultiple Airlines

Deal found 9/14

$840

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 September 16, 2025 and is based on user searches.

Thu 10/96:30 amBHD - DCA

2 stops21h 29mDelta

Thu 10/167:55 pmDCA - BHD

2 stops16h 00mDelta

Deal found 9/15

$683

Thu 10/96:30 amBHD - IAD

1 stop14h 05mKLM

Thu 10/169:20 pmIAD - BHD

2 stops14h 35mKLM

Deal found 9/15

$703

Thu 10/96:35 amBHD - BWI

2 stops16h 55mAmerican Airlines

Thu 10/169:35 pmBWI - BHD

1 stop12h 55mAmerican Airlines

Deal found 9/15

$745

Fri 10/109:45 pmBFS - BWI

3 stops24h 55mMultiple Airlines

Sun 10/126:50 pmBWI - BFS

2 stops23h 30mMultiple Airlines

Deal found 9/15

$709

Fri 10/105:25 pmBHD - BWI

3 stops29h 15mMultiple Airlines

Sun 10/126:50 pmBWI - BHD

3 stops21h 25mMultiple Airlines

Deal found 9/15

$729

Fri 10/106:30 amBHD - DCA

2 stops20h 37mVirgin Atlantic

Sun 10/124:50 pmDCA - BHD

2 stops47h 25mVirgin Atlantic

Deal found 9/15

$771

Fri 10/106:30 amBHD - IAD

1 stop14h 05mKLM

Sun 10/125:25 pmIAD - BHD

1 stop22h 50mKLM

Deal found 9/15

$772

Fri 10/106:05 amBFS - IAD

2 stops21h 05mMultiple Airlines

Sun 10/128:30 pmIAD - BFS

2 stops18h 50mMultiple Airlines

Deal found 9/15

$793

Sun 10/126:50 amBHD - IAD

1 stop18h 30mMultiple Airlines

Sun 10/191:09 pmIAD - BHD

2 stops17h 21mMultiple Airlines

Deal found 9/14

$739

Sun 10/1211:00 amBHD - IAD

1 stop14h 20mBritish Airways

Sun 10/195:50 pmIAD - BHD

1 stop14h 15mBritish Airways

Deal found 9/14

$758

Thu 10/304:15 pmBFS - IAD

3 stops33h 45mMultiple Airlines

Thu 11/65:30 pmIAD - BFS

2 stops23h 50mMultiple Airlines

Deal found 9/14

$788

Thu 10/306:30 amBFS - BWI

2 stops17h 10mMultiple Airlines

Thu 11/67:40 pmBWI - BFS

2 stops21h 40mMultiple Airlines

Deal found 9/14

$811

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 September 16, 2025.

Tue 10/149:05 pmBFS - BWI

3 stops49h 35mMultiple Airlines

Deal found 9/14

$384

Tue 10/149:25 pmBFS - IAD

3 stops46h 55mMultiple Airlines

Deal found 9/14

$388

Tue 10/146:00 pmBHD - IAD

3 stops31h 50mMultiple Airlines

Deal found 9/14

$463

Tue 10/148:15 amBFS - DCA

3 stops32h 49mMultiple Airlines

Deal found 9/14

$554

Tue 10/146:35 amBHD - BWI

1 stop18h 10mAer Lingus

Deal found 9/14

$752

Tue 10/146:35 amBHD - IAD

1 stop14h 20mBritish Airways

Deal found 9/14

$752

Tue 10/1410:20 amBHD - BWI

2 stops14h 05mMultiple Airlines

Deal found 9/14

$765

Tue 10/141:40 pmBHD - DCA

2 stops14h 17mMultiple Airlines

Deal found 9/14

$841

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

Thu 11/20

11:05 am-7:55 pm

1 stop13h 50m

Washington, D.C. Dulles Intl

Mon 11/24

6:20 pm-10:40 am

1 stop11h 20m

$671

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 12/4

6:35 am-4:04 pm

2 stops14h 29m

Washington, D.C. Reagan-National

Mon 12/8

7:48 pm-6:35 pm

2 stops17h 47m

$677

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 10/9

6:30 am-10:59 pm

2 stops21h 29m

Washington, D.C. Reagan-National

Thu 10/16

7:55 pm-4:55 pm

2 stops16h 00m

$683

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Fri 10/10

9:45 pm-5:40 pm

3 stops24h 55m

Baltimore/Washington

Sun 10/12

6:50 pm-11:20 pm

2 stops23h 30m

$709

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Sun 10/12

8:30 am-5:40 pm

2 stops14h 10m

Baltimore/Washington

Sun 10/19

6:50 pm-10:25 pm

2 stops22h 35m

$709

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Fri 3/6

8:45 am-6:45 pm

1 stop15h 00m

Baltimore/Washington

Tue 3/10

9:35 pm-11:30 am

1 stop9h 55m

$713

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 10/9

6:30 am-3:35 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Thu 10/16

5:25 pm-9:15 pm

1 stop22h 50m

$714

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 10/12

6:50 am-8:20 pm

1 stop18h 30m

Washington, D.C. Dulles Intl

Sun 10/19

1:09 pm-11:30 am

2 stops17h 21m

$739

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sun 10/12

11:00 am-11:53 pm

2 stops17h 53m

Washington, D.C. Dulles Intl

Sun 10/19

5:41 pm-2:40 pm

2 stops15h 59m

$745

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 10/10

6:30 am-10:07 pm

2 stops20h 37m

Washington, D.C. Reagan-National

Sun 10/12

4:50 pm-9:15 pm

2 stops47h 25m

$771

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 25 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 13h 50m. American Airlines provides one of the quickest options available for as low as $671. 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 - Washington, D.C. Reagan-National.
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.
What is the cheapest month to book a flight from Northern Ireland to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of $292). Flying from Northern Ireland to Washington, D.C. in April is currently the most expensive (average of $337). 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

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

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Oxon Hill

Laurel

Towson

National Harbor

Dundalk

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$384+ 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 10/14. 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

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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 September 16, 2025.

Round-trip from

One-way from

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 September 16, 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 September 16, 2025.

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.?

What is the cheapest month to book a flight 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 September 16, 2025.