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

British Airways, KLM, and Delta can get you from Washington, D.C. to Belfast in just under 11h 05m. Your travel time can differ by up to 4h 49m. Airlines will cover a distance of 3390 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

The most popular flight routes from Washington, D.C. to Belfast are Washington, D.C. Dulles Intl - Belfast Intl, Baltimore/Washington - Belfast Intl and Washington, D.C. Dulles Intl - Belfast City.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. to Belfast as you normally would.

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

Yes. In addition to deals on Washington, D.C. to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

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

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

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

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

£217+ Cheap Flights from Washington, D.C. to Belfast

Cheap flight deals from Washington, D.C. to Belfast

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Washington, D.C. to Belfast
Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 September 2026.

Tue 13/1020:30 -

2 stops14h 50m

Tue 20/1010:30 -

2 stops13h 50m

Deal found 29/8£548

Tue 13/1023:20 -

2 stops15h 20m

Tue 20/1010:30 -

2 stops13h 55m

Deal found 29/8£548

Mon 5/1020:30 -

3 stops21h 50m

Wed 28/1006:25 -

2 stops17h 05m

Deal found 30/8£606

Mon 5/1020:30 -

3 stops21h 50m

Wed 28/1006:25 -

2 stops17h 15m

Deal found 31/8£608

Mon 12/1020:30 -

2 stops14h 05m

Mon 19/1008:40 -

2 stops15h 45m

Deal found 28/8£633

Mon 12/1020:30 -

2 stops19h 10m

Mon 19/1006:40 -

2 stops17h 40m

Deal found 28/8£636

Wed 9/1219:40 -

2 stops19h 05m

Thu 17/1206:30 -

2 stops17h 10m

Deal found 30/8£676

Sat 26/920:30 -

2 stops21h 55m

Sat 3/1021:40 -

3 stops26h 20m

Deal found 27/8£692

Mon 21/920:30 -

2 stops18h 55m

Sat 26/906:20 -

2 stops20h 55m

Deal found 29/8£695

Wed 9/1219:40 -

2 stops17h 25m

Thu 17/1206:30 -

2 stops17h 00m

Deal found 30/8£696

Fri 9/1015:25 -

2 stops28h 30m

Tue 13/1017:10 -

3 stops30h 50m

Deal found 29/8£698

Wed 18/1118:05 -

1 stop14h 10m

Wed 25/1109:15 -

1 stop11h 25m

Deal found 30/8£723

Best flights from Washington, D.C. to Belfast
Discover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 September 2026.

Tue 13/1020:30 -

2 stops14h 50m

Tue 20/1010:30 -

2 stops13h 50m

Deal found 29/8£548

Sun 8/1121:45 -

1 stop11h 05m

Mon 16/1119:40 -

1 stop25h 00m

Deal found 28/8£741

Mon 28/912:26 -

2 stops15h 54m

Tue 6/1009:50 -

1 stop10h 45m

Deal found 31/8£751

Mon 5/1011:10 -

2 stops24h 45m

Sat 24/1017:30 -

2 stops44h 49m

Deal found 27/8£796

Fri 11/917:15 -

2 stops13h 40m

Wed 16/907:00 -

2 stops17h 25m

Deal found 28/8£903

Tue 13/1023:20 -

2 stops15h 20m

Tue 20/1010:30 -

2 stops13h 55m

Deal found 29/8£548

Mon 5/1020:30 -

3 stops21h 50m

Wed 28/1006:25 -

2 stops17h 05m

Deal found 30/8£606

Mon 5/1020:30 -

3 stops21h 50m

Wed 28/1006:25 -

2 stops17h 15m

Deal found 31/8£608

Mon 28/921:30 -

1 stop13h 00m

Tue 6/1006:30 -

2 stops21h 40m

Deal found 30/8£762

Mon 5/1018:10 -

1 stop10h 10m

Sat 24/1017:30 -

1 stop28h 15m

Deal found 27/8£785

Thu 1/1011:10 -

2 stops24h 45m

Sat 24/1017:30 -

2 stops44h 49m

Deal found 27/8£833

Mon 12/1020:30 -

2 stops14h 05m

Mon 19/1008:40 -

2 stops15h 45m

Deal found 28/8£633

Fri 15/118:55 -

1 stop11h 00m

Sun 17/115:15 -

1 stop30h 50m

Deal found 27/8£805

Sat 3/1017:30 -

1 stop18h 25m

Sat 24/1017:30 -

1 stop28h 15m

Deal found 27/8£822

Mon 12/1020:30 -

2 stops19h 10m

Mon 19/1006:40 -

2 stops17h 40m

Deal found 28/8£636

Fri 11/917:30 -

1 stop18h 25m

Wed 16/909:50 -

2 stops18h 33m

Deal found 29/8£873

Fri 15/117:45 -

2 stops12h 10m

Sun 17/120:30 -

2 stops25h 38m

Deal found 27/8£808

Fri 15/112:30 -

2 stops15h 40m

Sun 17/109:40 -

2 stops19h 40m

Deal found 27/8£829

Fri 11/917:05 -

2 stops18h 50m

Wed 16/909:50 -

2 stops18h 45m

Deal found 29/8£876

Sat 9/119:40 -

3 stops19h 35m

Sun 17/122:00 -

3 stops25h 40m

Deal found 30/8£681

Fri 15/108:10 -

2 stops20h 00m

Sun 17/109:40 -

2 stops18h 36m

Deal found 29/8£921

Sat 26/920:30 -

2 stops21h 55m

Sat 3/1021:40 -

3 stops26h 20m

Deal found 27/8£692

Mon 19/1021:30 -

1 stop13h 00m

Wed 21/1019:40 -

1 stop29h 00m

Deal found 30/8£990

Thu 28/119:40 -

2 stops21h 15m

Mon 1/208:30 -

2 stops15h 10m

Deal found 29/8£708

Mon 21/916:59 -

2 stops14h 56m

Sat 26/907:05 -

2 stops19h 05m

Deal found 29/8£1,008

Mon 21/920:30 -

3 stops20h 30m

Sat 26/921:40 -

3 stops26h 20m

Deal found 29/8£720

Mon 21/920:30 -

3 stops21h 50m

Sat 26/906:20 -

2 stops20h 55m

Deal found 29/8£770

Sun 18/1017:10 -

2 stops16h 25m

Wed 21/1011:35 -

2 stops15h 45m

Deal found 29/8£1,142

Thu 8/1006:59 -

2 stops21h 41m

Tue 13/1008:20 -

3 stops31h 00m

Deal found 28/8£845

Thu 8/1011:00 -

2 stops17h 45m

Tue 13/1007:00 -

3 stops34h 09m

Deal found 28/8£848

Find flight deals from Washington, D.C. to Belfast

Round-trip from	£548
One-way from	£217

13/10-20/10
4 total stops
28h 40m total
Washington, D.C. to Belfast

Search Deals

12/10
3 total stops
30h 35m total
Washington, D.C. to Belfast

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Tue 13/10

20:30-16:20

2 stops14h 50m

Belfast Intl

Tue 20/10

10:30-19:20

2 stops13h 50m

£548

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Tue 13/10

23:20-19:40

2 stops15h 20m

Belfast Intl

Tue 20/10

10:30-19:25

2 stops13h 55m

£548

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Mon 5/10

20:30-23:20

3 stops21h 50m

Belfast Intl

Wed 28/10

06:25-19:30

2 stops17h 05m

£606

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Mon 5/10

20:30-23:20

3 stops21h 50m

Belfast Intl

Wed 28/10

06:25-19:40

2 stops17h 15m

£608

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Mon 12/10

20:30-15:35

2 stops14h 05m

Belfast Intl

Mon 19/10

08:40-19:25

2 stops15h 45m

£633

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Mon 12/10

20:30-20:40

2 stops19h 10m

Belfast Intl

Mon 19/10

06:40-19:20

2 stops17h 40m

£636

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Sat 9/1

19:40-20:15

3 stops19h 35m

Belfast Intl

Sun 17/1

22:00-18:40

3 stops25h 40m

£681

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Sat 26/9

20:30-23:25

2 stops21h 55m

Belfast Intl

Sat 3/10

21:40-19:00

3 stops26h 20m

£692

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Thu 28/1

19:40-21:55

2 stops21h 15m

Belfast Intl

Mon 1/2

08:30-18:40

2 stops15h 10m

£708

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Mon 21/9

20:30-22:00

3 stops20h 30m

Belfast Intl

Sat 26/9

21:40-19:00

3 stops26h 20m

£720

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 40 resultsSorted by cheapest first

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

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

WAS-BF1

IAD-BFS

IAD-BHD

BWI-BFS

BWI-BHD

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 Washington, D.C. to Belfast

WAS-BF1

IAD-BFS

IAD-BHD

BWI-BFS

BWI-BHD

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

Related info for your journey

How long is the flight from Washington, D.C. to Belfast?
British Airways, KLM, and Delta can get you from Washington, D.C. to Belfast in just under 11h 05m. Your travel time can differ by up to 4h 49m. Airlines will cover a distance of 3390 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Washington, D.C. to Belfast?
The most popular flight routes from Washington, D.C. to Belfast are Washington, D.C. Dulles Intl - Belfast Intl, Baltimore/Washington - Belfast Intl and Washington, D.C. Dulles Intl - Belfast City.
Can I find deals for flights from Washington, D.C. to Belfast that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Belfast.
Can I find deals for business class flights from Washington, D.C. to Belfast?
Yes. Cheapflights offers flight deals from Washington, D.C. to Belfast 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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How does Cheapflights help users find flights from Washington, D.C. to Belfast?

Cheapflights makes it easy to find Washington, D.C. to Belfast flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from Washington, D.C..

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Washington, D.C. to Belfast, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Washington, D.C. to Belfast flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Washington, D.C. to Belfast from £217

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Washington, D.C. to Belfast

Cheapest flights from Washington, D.C. to BelfastExplore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 September 2026.

Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 September 2026.

Best flights from Washington, D.C. to BelfastDiscover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 September 2026.

Discover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 September 2026.

Last-minute flights from Washington, D.C. to BelfastDiscover last-minute flight deals from Washington, D.C. to Belfast. Data last updated 1 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Belfast. Data last updated 1 September 2026 and is based on user searches.

One-way flights from Washington, D.C. to BelfastSearch for one-way flight options from Washington, D.C. to Belfast. Find affordable one-way fares based on user searches. Data last updated 1 September 2026.

Search for one-way flight options from Washington, D.C. to Belfast. Find affordable one-way fares based on user searches. Data last updated 1 September 2026.

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

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

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Related info for your journey

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Belfast by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Northern Ireland

Book a non-stop flight to one of these other cities located in Northern Ireland.

Search flights from Washington, D.C. to Belfast by cabin class

Find flights from Washington, D.C. to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Washington, D.C. and Belfast flights

Browse other Washington, D.C. and Belfast flight options. Last updated on 1 September 2026.

Other flights from Washington, D.C.

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

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Cheapest flights from Washington, D.C. to Belfast
Explore the most affordable flight options available from Washington, D.C. to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 September 2026.

Best flights from Washington, D.C. to Belfast
Discover carefully curated flight deals from Washington, D.C. to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 1 September 2026.

Last-minute flights from Washington, D.C. to Belfast
Discover last-minute flight deals from Washington, D.C. to Belfast. Data last updated 1 September 2026 and is based on user searches.

One-way flights from Washington, D.C. to Belfast
Search for one-way flight options from Washington, D.C. to Belfast. Find affordable one-way fares based on user searches. Data last updated 1 September 2026.