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

There are many flights that can get you from Northern Ireland to Washington, D.C. in 27h 40m. Fly via American Airlines, British Airways, or KLM to get the fastest option. Airlines will cover a distance of 3390 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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

Most travelers choose Belfast City - Baltimore/Washington, Belfast City - Washington, D.C. Reagan-National or Belfast City - Washington, D.C. Dulles Intl when deciding on the best route from Northern Ireland to Washington, D.C..

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.

£414+ Cheap Flights from Northern Ireland to Washington, D.C.

Cheap flight deals from 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 23 October 2026.

Thu 12/1111:05 -

1 stop33h 35m

Mon 16/1121:45 -

1 stop11h 30m

Deal found 21/10£692

Thu 12/1117:15 -

1 stop27h 40m

Mon 16/1112:35 -

2 stops15h 35m

Deal found 21/10£713

Thu 12/1111:05 -

2 stops17h 49m

Mon 16/1117:15 -

2 stops17h 40m

Deal found 21/10£734

Thu 12/1114:10 -

1 stop30h 30m

Mon 16/1121:45 -

1 stop11h 30m

Deal found 21/10£997

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

Round-trip from	£692
One-way from	£414

American Airlines
12/11-16/11
2 total stops
45h 05m total
Northern Ireland to Washington, D.C.

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10/1-31/12
3 total stops
40h 59m total
Northern Ireland to Washington, D.C.

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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BFS Belfast Intl - DCA Washington, D.C. Reagan-National

BFSDCA

Belfast Intl

Sun 10/1

20:00-07:59

3 stops40h 59m

Washington, D.C. Reagan-National

Wed 31/12

00:00-06:00

Nonstop0h 00m

£414

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

11:05-15:40

1 stop33h 35m

Washington, D.C. Dulles Intl

Mon 16/11

21:45-14:15

1 stop11h 30m

£692

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 21/1

15:25-16:20

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 25/1

21:45-15:55

1 stop13h 10m

£706

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 12/11

17:15-15:55

1 stop27h 40m

Washington, D.C. Dulles Intl

Mon 16/11

12:35-09:10

2 stops15h 35m

£713

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Sun 10/1

18:20-14:40

3 stops49h 20m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£927

Fastest return journey

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Sun 10/1

09:40-15:40

1 stop11h 00m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£1,517

Flights are sorted by cheapest return flights first.

Deals found on 18/10

Sorted by cheapest first

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.

BFS-DCA

BHD-IAD

Estimated return 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.

GBNIR-WAS

BFS-DCA

BHD-IAD

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.?
There are many flights that can get you from Northern Ireland to Washington, D.C. in 27h 40m. Fly via American Airlines, British Airways, or KLM to get the fastest option. Airlines will cover a distance of 3390 mi. This flight may include one or multiple stops.
What are the most popular routes from Northern Ireland to Washington, D.C.?
Most travelers choose Belfast City - Baltimore/Washington, Belfast City - Washington, D.C. Reagan-National or Belfast City - Washington, D.C. Dulles Intl when deciding on the best route from Northern Ireland to Washington, D.C..
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 holiday 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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Alternative routes for Northern Ireland to Washington, D.C.

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How does Cheapflights help users find flights from Northern Ireland to Washington, D.C.?

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Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Washington, D.C.?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to Washington, D.C..

Can Cheapflights find flights from Northern Ireland to Washington, D.C. with no change fees?

Need flexible booking options for your flight to Washington, D.C. from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Northern Ireland to Washington, D.C. become cheaper?

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Cheap flights from Northern Ireland to Washington, D.C. from £414

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 23 October 2026.

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 23 October 2026.

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 stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

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 23 October 2026 and is based on user searches.

Discover last-minute flight deals from Northern Ireland to Washington, D.C.. Data last updated 23 October 2026 and is based on user searches.

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 23 October 2026.

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 23 October 2026.

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Related info for your journey

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.?

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

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

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Northern Ireland and Washington, D.C. flights

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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 23 October 2026.

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 stopovers in mind to ensure you get the best travel experience. Data last updated 23 October 2026.

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 23 October 2026 and is based on user searches.

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 23 October 2026.