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

Delta, KLM, and British Airways can get you from Washington, D.C. to Belfast in just under 10h 10m. Your travel time can differ by up to 7h 35m. 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, Washington, D.C. Dulles Intl - Belfast City and Baltimore/Washington - Belfast Intl.

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.

£192+ 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 10 September 2026.

Thu 15/1021:30 -

1 stop13h 00m

Fri 23/1009:35 -

1 stop15h 05m

Deal found 6/9£522

Thu 15/1022:25 -

1 stop12h 05m

Fri 23/1009:35 -

1 stop12h 50m

Deal found 6/9£548

Wed 7/1022:25 -

1 stop10h 10m

Tue 13/1006:30 -

1 stop14h 25m

Deal found 6/9£549

Wed 7/1021:30 -

1 stop11h 05m

Tue 13/1012:40 -

1 stop12h 00m

Deal found 6/9£564

Tue 1/1219:40 -

2 stops20h 15m

Wed 9/1208:30 -

2 stops15h 00m

Deal found 7/9£596

Tue 1/1219:40 -

2 stops20h 15m

Wed 9/1208:30 -

2 stops15h 10m

Deal found 7/9£599

Tue 1/1219:40 -

2 stops18h 50m

Wed 9/1207:25 -

2 stops16h 05m

Deal found 7/9£601

Tue 1/1219:40 -

2 stops18h 50m

Wed 9/1207:25 -

2 stops16h 15m

Deal found 7/9£601

Fri 11/1219:40 -

2 stops20h 00m

Fri 18/1208:25 -

2 stops15h 15m

Deal found 10/9£635

Mon 23/1119:40 -

2 stops18h 30m

Mon 30/1106:30 -

2 stops17h 00m

Deal found 7/9£636

Wed 7/1017:45 -

1 stop14h 50m

Sun 11/1013:10 -

1 stop12h 10m

Deal found 9/9£655

Mon 23/1119:40 -

2 stops20h 25m

Mon 30/1107:20 -

2 stops16h 10m

Deal found 7/9£660

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 10 September 2026.

Tue 1/1219:40 -

2 stops20h 15m

Wed 9/1208:30 -

2 stops15h 00m

Deal found 7/9£596

Mon 28/918:10 -

1 stop17h 45m

Tue 6/1009:50 -

2 stops18h 36m

Deal found 8/9£666

Mon 28/918:10 -

1 stop10h 10m

Tue 6/1009:50 -

2 stops18h 26m

Deal found 9/9£666

Wed 7/1018:33 -

2 stops16h 07m

Tue 13/1012:40 -

2 stops16h 19m

Deal found 6/9£751

Tue 1/1219:40 -

2 stops20h 15m

Wed 9/1208:30 -

2 stops15h 10m

Deal found 7/9£599

Thu 21/117:45 -

1 stop18h 05m

Tue 26/109:40 -

2 stops18h 22m

Deal found 10/9£703

Thu 21/112:59 -

2 stops15h 11m

Tue 26/109:40 -

2 stops18h 13m

Deal found 10/9£706

Wed 7/1022:35 -

2 stops19h 35m

Tue 13/1006:40 -

2 stops37h 30m

Deal found 6/9£666

Thu 8/1017:45 -

1 stop11h 25m

Thu 15/1012:45 -

1 stop12h 35m

Deal found 8/9£758

Thu 21/113:00 -

2 stops15h 10m

Tue 26/109:40 -

2 stops17h 57m

Deal found 10/9£706

Wed 7/1012:01 -

2 stops16h 19m

Tue 13/1009:50 -

1 stop10h 45m

Deal found 6/9£751

Mon 19/1020:30 -

2 stops19h 10m

Mon 26/1006:45 -

2 stops17h 35m

Deal found 5/9£686

Thu 21/118:55 -

1 stop11h 00m

Tue 26/106:35 -

2 stops16h 01m

Deal found 10/9£773

Sat 24/1020:40 -

2 stops20h 15m

Sat 31/1007:10 -

2 stops16h 20m

Deal found 10/9£686

Thu 15/1019:40 -

2 stops16h 15m

Fri 23/1009:50 -

2 stops18h 08m

Deal found 6/9£795

Thu 8/1011:05 -

2 stops17h 15m

Tue 13/1009:50 -

2 stops18h 05m

Deal found 8/9£795

Sun 4/1013:00 -

2 stops16h 30m

Sun 11/1011:00 -

2 stops17h 06m

Deal found 6/9£805

Mon 23/1119:40 -

3 stops19h 35m

Mon 30/1106:30 -

2 stops17h 00m

Deal found 7/9£688

Mon 28/921:30 -

1 stop13h 00m

Tue 6/1016:25 -

1 stop32h 15m

Deal found 5/9£822

Thu 17/1217:45 -

1 stop18h 05m

Wed 23/1209:40 -

1 stop11h 15m

Deal found 10/9£864

Sat 24/1020:40 -

3 stops19h 35m

Sat 31/1023:00 -

2 stops24h 40m

Deal found 8/9£717

Mon 23/1114:58 -

2 stops14h 52m

Mon 30/1108:35 -

2 stops17h 09m

Deal found 7/9£837

Sun 22/1113:30 -

2 stops22h 35m

Mon 30/1117:55 -

2 stops30h 30m

Deal found 7/9£722

Thu 21/119:40 -

2 stops15h 40m

Tue 26/110:00 -

3 stops39h 35m

Deal found 10/9£725

Tue 20/1021:30 -

1 stop12h 50m

Sun 25/1006:30 -

1 stop15h 35m

Deal found 9/9£909

Thu 22/1020:30 -

3 stops22h 00m

Thu 29/1006:30 -

2 stops17h 10m

Deal found 7/9£728

Thu 17/1217:20 -

2 stops14h 25m

Wed 23/1208:40 -

2 stops15h 25m

Deal found 10/9£913

Thu 21/119:40 -

3 stops16h 50m

Tue 26/118:20 -

3 stops29h 20m

Deal found 10/9£742

Sat 26/1213:34 -

2 stops25h 51m

Fri 1/106:45 -

2 stops20h 15m

Deal found 6/9£952

Sun 4/1013:15 -

2 stops27h 40m

Sun 11/1007:00 -

2 stops33h 30m

Deal found 6/9£760

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

Round-trip from	£522
One-way from	£192

British Airways
15/10-23/10
2 total stops
28h 05m total
Washington, D.C. to Belfast

Search Deals

19/10-31/12
2 total stops
35h 26m 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

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Mon 19/10

15:04-07:30

2 stops35h 26m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£192

BaltimoreBelfast

BWI Baltimore/Washington - BHD Belfast City

BWIBHD

Baltimore/Washington

Mon 19/10

15:04-13:40

2 stops17h 36m

Belfast City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£201

Washington, D.C.Belfast

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

IADBFS

Washington, D.C. Dulles Intl

Mon 2/11

17:25-22:00

3 stops47h 35m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£253

BaltimoreBelfast

BWI Baltimore/Washington - BHD Belfast City

BWIBHD

Baltimore/Washington

Tue 3/11

10:54-19:00

3 stops51h 06m

Belfast City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£261

Fastest return journey

Washington, D.C.Belfast

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

IADBHD

Washington, D.C. Dulles Intl

Tue 3/11

17:45-09:10

1 stop10h 25m

Belfast City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£345

BaltimoreBelfast

BWI Baltimore/Washington - BHD Belfast City

BWIBHD

Baltimore/Washington

Mon 19/10

21:30-15:30

1 stop13h 00m

Belfast City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£394

Washington, D.C.Belfast

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

IADBHD

Washington, D.C. Dulles Intl

Tue 3/11

19:40-17:05

3 stops16h 25m

Belfast City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£403

Washington, D.C.Belfast

DCA Washington, D.C. Reagan-National - BHD Belfast City

DCABHD

Washington, D.C. Reagan-National

Tue 3/11

17:12-11:30

2 stops13h 18m

Belfast City

Wed 31/12

00:00-18:00

Nonstop0h 00m

£403

Washington, D.C.Belfast

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

IADBFS

Washington, D.C. Dulles Intl

Tue 3/11

22:55-22:10

2 stops18h 15m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£406

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Tue 3/11

18:55-14:30

1 stop14h 35m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£504

Flights are sorted by cheapest return flights first.

Deals found on 9/9

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

BWI-BHD

IAD-BHD

IAD-BFS

BWI-BFS

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

BWI-BHD

IAD-BHD

IAD-BFS

BWI-BFS

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?
Delta, KLM, and British Airways can get you from Washington, D.C. to Belfast in just under 10h 10m. Your travel time can differ by up to 7h 35m. 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, Washington, D.C. Dulles Intl - Belfast City and Baltimore/Washington - Belfast Intl.
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 £192

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. 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 10 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 10 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 10 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 10 September 2026.

Last-minute flights from Washington, D.C. to BelfastDiscover last-minute flight deals from Washington, D.C. to Belfast. Data last updated 10 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Belfast. Data last updated 10 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 10 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 10 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 10 September 2026.

Other flights from Washington, D.C.

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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 10 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 10 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 10 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 10 September 2026.