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

Departing from Belfast to Washington, D.C. will take you 10h 50m. 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 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 Belfast to Washington, D.C.?

When deciding which route to take from Belfast to Washington, D.C. consider Belfast Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Reagan-National as they are the most popular.

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

When flying from Belfast 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.

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

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

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

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

Yes. Cheapflights offers flight deals from Belfast 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.

£456+ Cheap Flights from Belfast to Washington, D.C.

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

Enter your travel dates to find the best prices.

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Best

Last-minute

One-way

Cheapest flights from Belfast to Washington, D.C.
Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Sat 10/1006:20 -

2 stops20h 55m

Sat 17/1023:20 -

2 stops14h 15m

Deal found 26/8£513

Mon 23/1106:05 -

2 stops17h 25m

Wed 2/1218:55 -

1 stop14h 20m

Deal found 26/8£615

Mon 21/1210:10 -

2 stops33h 35m

Sat 9/117:25 -

2 stops20h 30m

Deal found 24/8£620

Mon 21/1210:15 -

2 stops33h 30m

Sat 9/117:25 -

2 stops19h 25m

Deal found 24/8£621

Thu 26/1108:50 -

1 stop13h 15m

Thu 3/1218:55 -

1 stop12h 50m

Deal found 26/8£643

Thu 26/1107:40 -

1 stop13h 00m

Thu 3/1221:45 -

1 stop11h 20m

Deal found 26/8£643

Thu 26/1119:45 -

3 stops27h 55m

Thu 3/1219:40 -

3 stops19h 10m

Deal found 26/8£648

Mon 21/1211:40 -

1 stop13h 15m

Sat 9/121:45 -

1 stop14h 00m

Deal found 24/8£654

Thu 26/1107:40 -

2 stops15h 52m

Thu 3/1217:12 -

2 stops14h 33m

Deal found 26/8£662

Mon 21/1208:35 -

2 stops15h 43m

Sat 9/118:34 -

2 stops14h 41m

Deal found 24/8£665

Sat 19/1206:35 -

1 stop14h 05m

Sat 9/121:45 -

1 stop14h 00m

Deal found 24/8£669

Mon 23/1121:00 -

2 stops26h 30m

Tue 1/1218:55 -

1 stop12h 45m

Deal found 26/8£675

Best flights from Belfast to Washington, D.C.
Discover carefully curated flight deals from Belfast to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Mon 23/1106:05 -

2 stops17h 25m

Wed 2/1218:55 -

1 stop14h 20m

Deal found 26/8£615

Mon 21/1211:40 -

1 stop13h 15m

Sat 9/121:45 -

1 stop14h 00m

Deal found 24/8£654

Sun 20/909:45 -

1 stop10h 50m

Sat 17/1018:31 -

2 stops17h 24m

Deal found 27/8£677

Sun 20/909:45 -

1 stop10h 50m

Sat 17/1017:30 -

1 stop18h 25m

Deal found 27/8£677

Wed 25/1109:15 -

1 stop12h 50m

Thu 3/1218:55 -

1 stop12h 50m

Deal found 26/8£691

Mon 21/1210:10 -

2 stops33h 35m

Sat 9/117:25 -

2 stops20h 30m

Deal found 24/8£620

Thu 26/1107:40 -

2 stops15h 52m

Thu 3/1217:12 -

2 stops14h 33m

Deal found 26/8£662

Sun 20/909:45 -

2 stops18h 14m

Sat 17/1012:27 -

2 stops15h 48m

Deal found 27/8£680

Mon 21/1210:15 -

2 stops33h 30m

Sat 9/117:25 -

2 stops19h 25m

Deal found 24/8£621

Wed 25/1109:15 -

1 stop12h 50m

Tue 1/1218:55 -

1 stop11h 35m

Deal found 26/8£691

Mon 21/1208:35 -

2 stops15h 43m

Sat 9/118:34 -

2 stops14h 41m

Deal found 24/8£665

Mon 23/1108:35 -

1 stop13h 30m

Sun 6/1218:55 -

1 stop13h 55m

Deal found 26/8£691

Thu 26/1119:45 -

3 stops27h 55m

Thu 3/1219:40 -

2 stops18h 15m

Deal found 26/8£662

Mon 21/1209:25 -

1 stop12h 40m

Sat 9/118:55 -

1 stop11h 15m

Deal found 24/8£685

Tue 24/1110:00 -

1 stop14h 55m

Wed 2/1221:55 -

1 stop10h 20m

Deal found 26/8£691

Tue 24/1120:35 -

2 stops26h 55m

Tue 1/1218:55 -

1 stop12h 45m

Deal found 26/8£676

Thu 21/120:00 -

2 stops25h 20m

Mon 25/111:34 -

2 stops18h 16m

Deal found 27/8£689

Mon 23/1111:40 -

1 stop13h 15m

Tue 1/1221:45 -

1 stop12h 05m

Deal found 26/8£691

Sun 20/921:10 -

2 stops23h 35m

Sat 17/1020:30 -

2 stops19h 55m

Deal found 27/8£677

Fri 27/1108:35 -

2 stops17h 43m

Sat 5/1216:59 -

2 stops13h 11m

Deal found 26/8£695

Thu 21/117:50 -

1 stop28h 15m

Mon 25/118:55 -

1 stop10h 55m

Deal found 28/8£699

Thu 26/1121:00 -

3 stops27h 05m

Thu 3/1219:40 -

3 stops19h 10m

Deal found 26/8£678

Thu 26/1108:50 -

2 stops28h 04m

Sat 5/1216:59 -

2 stops13h 11m

Deal found 26/8£695

Thu 14/106:30 -

2 stops18h 06m

Sun 17/115:30 -

2 stops14h 15m

Deal found 28/8£703

Mon 21/1207:20 -

2 stops16h 20m

Sat 9/119:40 -

2 stops18h 15m

Deal found 24/8£684

Sat 19/1211:45 -

2 stops24h 39m

Sat 9/117:45 -

2 stops12h 25m

Deal found 24/8£725

Mon 21/1206:30 -

2 stops17h 10m

Sat 9/119:40 -

2 stops17h 10m

Deal found 24/8£685

Fri 9/1009:10 -

2 stops15h 15m

Fri 16/1020:30 -

3 stops21h 50m

Deal found 25/8£690

Sat 19/1223:00 -

3 stops24h 40m

Sat 9/119:40 -

3 stops19h 35m

Deal found 24/8£718

Fri 27/1107:45 -

2 stops16h 35m

Tue 1/1218:55 -

1 stop12h 45m

Deal found 26/8£765

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

Round-trip from	£513
One-way from	£456

10/10-17/10
4 total stops
35h 10m total
Belfast to Washington, D.C.

Search Deals

9/9
3 total stops
34h 45m total
Belfast to Washington, D.C.

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

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

BFSIAD

Belfast Intl

Mon 23/11

06:05-18:30

2 stops17h 25m

Washington, D.C. Dulles Intl

Wed 2/12

18:55-14:15

1 stop14h 20m

£615

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Mon 21/12

10:10-14:45

2 stops33h 35m

Washington, D.C. Dulles Intl

Sat 9/1

17:25-18:55

2 stops20h 30m

£620

BelfastWashington, D.C.

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

BFSIAD

Belfast Intl

Mon 21/12

10:15-14:45

2 stops33h 30m

Washington, D.C. Dulles Intl

Sat 9/1

17:25-17:50

2 stops19h 25m

£621

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Mon 21/12

11:40-19:55

1 stop13h 15m

Washington, D.C. Dulles Intl

Sat 9/1

21:45-16:45

1 stop14h 00m

£654

BelfastWashington, D.C.

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

BHDDCA

Belfast City

Thu 26/11

07:40-18:32

2 stops15h 52m

Washington, D.C. Reagan-National

Thu 3/12

17:12-12:45

2 stops14h 33m

£662

BelfastBaltimore

BFS Belfast Intl - BWI Baltimore/Washington

BFSBWI

Belfast Intl

Thu 26/11

19:45-18:40

3 stops27h 55m

Baltimore/Washington

Thu 3/12

19:40-18:55

2 stops18h 15m

£662

BelfastWashington, D.C.

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

BHDDCA

Belfast City

Mon 21/12

08:35-19:18

2 stops15h 43m

Washington, D.C. Reagan-National

Sat 9/1

18:34-14:15

2 stops14h 41m

£665

BelfastWashington, D.C.

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

BFSIAD

Belfast Intl

Tue 24/11

20:35-18:30

2 stops26h 55m

Washington, D.C. Dulles Intl

Tue 1/12

18:55-12:40

1 stop12h 45m

£676

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Sun 20/9

09:45-15:35

1 stop10h 50m

Washington, D.C. Dulles Intl

Sat 17/10

18:31-16:55

2 stops17h 24m

£677

BelfastWashington, D.C.

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

BHDIAD

Belfast City

Sun 20/9

09:45-15:35

1 stop10h 50m

Washington, D.C. Dulles Intl

Sat 17/10

17:30-16:55

1 stop18h 25m

£677

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Showing 1-10 of 32 resultsSorted by cheapest first

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

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

BF1-WAS

BHD-BWI

BFS-IAD

BHD-IAD

BHD-DCA

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 Belfast to Washington, D.C.

BF1-WAS

BHD-BWI

BFS-IAD

BHD-IAD

BHD-DCA

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

Related info for your journey

How long is the flight from Belfast to Washington, D.C.?
Departing from Belfast to Washington, D.C. will take you 10h 50m. 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 Belfast to Washington, D.C.?
When deciding which route to take from Belfast to Washington, D.C. consider Belfast Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Reagan-National as they are the most popular.
Can I find deals for flights from Belfast to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Belfast to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast 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 Belfast to Washington, D.C..
Can I find deals for business class flights from Belfast to Washington, D.C.?
Yes. Cheapflights offers flight deals from Belfast 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.

See more FAQs

Silver Spring

Alexandria

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Woodbridge

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Springfield

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Washington, D.C. flight routes

Alternative routes for Belfast to Washington, D.C.

Belfast City to Reagan-National flights

Belfast Intl to Dulles Intl flights

Belfast City to Dulles Intl flights

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

Cheapflights makes it easy to find Belfast to Washington, D.C. 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 Belfast to Washington, D.C.?

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 Washington, D.C. from Belfast.

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

Yes, we can. To see specific flights from Belfast to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

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Cheap flights from Belfast to Washington, D.C. from £456

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheapest flights from Belfast to Washington, D.C.Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Belfast to Washington, D.C.Discover carefully curated flight deals from Belfast to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Discover carefully curated flight deals from Belfast to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Last-minute flights from Belfast to Washington, D.C.Discover last-minute flight deals from Belfast to Washington, D.C.. Data last updated 29 August 2026 and is based on user searches.

Discover last-minute flight deals from Belfast to Washington, D.C.. Data last updated 29 August 2026 and is based on user searches.

One-way flights from Belfast to Washington, D.C.Search for one-way flight options from Belfast to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Search for one-way flight options from Belfast to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

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

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

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Related info for your journey

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Belfast to Washington, D.C.

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Complete your trip

Complete your trip to Washington, D.C. by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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

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

Belfast and Washington, D.C. flights

Browse other Belfast and Washington, D.C. flight options. Last updated on 29 August 2026.

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Belfast to Washington, D.C. flights

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

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Cheapest flights from Belfast to Washington, D.C.
Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Belfast to Washington, D.C.
Discover carefully curated flight deals from Belfast to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Last-minute flights from Belfast to Washington, D.C.
Discover last-minute flight deals from Belfast to Washington, D.C.. Data last updated 29 August 2026 and is based on user searches.

One-way flights from Belfast to Washington, D.C.
Search for one-way flight options from Belfast to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.