What are the cheapest airlines flying from Washington, D.C. to Belfast round-trip?

Cheapflights users have booked flights from Washington, D.C. to Belfast round-trip from $665. Other airlines that can offer you cheap pricing are British Airways, from $680, and Aer Lingus, from $1,084. You may be able to fly from Washington, D.C. to Belfast for 28% less than the average price by searching for these airlines.

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

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

Can I find flights from Washington, D.C. to Belfast for under $700 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. to Belfast for under $700. The cheapest flight booked recently is on Multiple Airlines for just $651, but on average you can expect to pay $794.

Are there last-minute flights available from Washington, D.C. to Belfast for under $1,300?

There are currently 20+ open flights from Washington, D.C. to Belfast within the next 7 days for less than $1,300.

Which airlines flying from Washington, D.C. to Belfast have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like British Airways and American Airlines flying from Washington, D.C. to Belfast have implemented new flexible cancellation policies.

What is the cheapest month to fly from Washington, D.C. to Belfast?

Our data shows that November tends to be the cheapest month to fly to Belfast from Washington, D.C.. Users have commonly found prices around $931 for the month, but tickets can be as low as $564. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Washington, D.C. to Belfast (WAS - 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.

Cheap Flights from Washington, D.C., DC to Belfast, Northern Ireland from $629 - Find Tickets & Airfare Deals at Cheapflights.com

How to find the cheapest flight from Washington, D.C. (WAS) to Belfast

Popular in	December
Cheapest in	November
Round-trip from	$647
One-way from	$629

High demand for flights, 35% potential price rise

Search Deals

Best time to find cheap flights, 30% potential price drop

Search Deals

From Washington, D.C. (WAS) to Belfast

Search Deals

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

Search Deals

WAS - BFS Price	$647 - $1,461
BFS Temperature	41 - 60.8 °F
BFS Rainfall	2 - 3.5 inches

WAS - BFS

Price

$647 - $1,461

BFS

Temperature

41 - 60.8 °F

BFS

Rainfall

2 - 3.5 inches

Cheap flights from Washington, D.C. to Belfast in June, July 2023

Scroll through some of the best deals on flights from Washington, D.C. to Belfast in 2023. For more flight deals, be sure to check back very soon.

Jul 17 - Jul 29

DCA

Washington, D.C. Reagan-National

BHD

Belfast City

2 stops

13h 57m

BHD

Belfast City

DCA

Washington, D.C. Reagan-National

2 stops

21h 30m

$944

American Airlines

Deal found 6/6

Jul 17 - Jul 29

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

29h 50m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

1 stop

26h 05m

$983

Multiple Airlines

Deal found 6/6

Jul 17 - Jul 29

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

30h 45m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

16h 05m

$990

Multiple Airlines

Deal found 6/6

Jul 17 - Jul 29

BWI

Baltimore/Washington

BHD

Belfast City

1 stop

19h 00m

BHD

Belfast City

BWI

Baltimore/Washington

2 stops

17h 02m

$1,206

American Airlines

Deal found 6/6

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

29h 45m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

26h 35m

$1,234

Multiple Airlines

Deal found 6/7

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

15h 00m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

1 stop

26h 30m

$1,261

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

21h 40m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

1 stop

17h 25m

$1,288

Multiple Airlines

Deal found 6/7

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

15h 00m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

2 stops

25h 20m

$1,298

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

30h 25m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

14h 20m

$1,302

Multiple Airlines

Deal found 6/7

Washington, D.C. to Belfast 2023 flight deals

Scroll through some of the best deals on flights from Washington, D.C. to Belfast in 2023. For more flight deals, be sure to check back very soon.

Sep 20 - Sep 29

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

10h 20m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

2 stops

14h 55m

$651

Multiple Airlines

Deal found 6/7

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

11h 30m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

28h 20m

$665

American Airlines

Deal found 6/6

Dec 25 - Jan 8

DCA

Washington, D.C. Reagan-National

BHD

Belfast City

2 stops

16h 20m

BHD

Belfast City

DCA

Washington, D.C. Reagan-National

2 stops

17h 25m

$665

American Airlines

Deal found 6/6

Sep 20 - Sep 29

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

10h 20m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

1 stop

12h 05m

$667

Multiple Airlines

Deal found 6/7

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

2 stops

18h 13m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

28h 20m

$668

American Airlines

Deal found 6/6

Sep 20 - Sep 29

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

11h 10m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

18h 45m

$672

Multiple Airlines

Deal found 6/7

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

17h 05m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

28h 20m

$673

American Airlines

Deal found 6/7

Oct 8 - Oct 14

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

2 stops

18h 30m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

27h 20m

$677

Delta

Deal found 6/7

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

2 stops

22h 47m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

28h 20m

$678

American Airlines

Deal found 6/7

Cheap American Airlines flights from Washington, D.C. to Belfast

Peruse some of the lowest-priced American Airlines flights we've found from Washington, D.C. to Belfast. Deals update often to give you more flight options matching your criteria

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

11h 30m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

28h 20m

$665

American Airlines

Deal found 6/6

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

2 stops

18h 13m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

28h 20m

$668

American Airlines

Deal found 6/6

Aug 10 - Aug 18

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

13h 10m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

15h 35m

$805

American Airlines

Deal found 6/6

Aug 10 - Aug 18

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

10h 55m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

17h 11m

$813

American Airlines

Deal found 6/6

Aug 10 - Aug 18

DCA

Washington, D.C. Reagan-National

BHD

Belfast City

2 stops

12h 07m

BHD

Belfast City

DCA

Washington, D.C. Reagan-National

2 stops

14h 09m

$819

American Airlines

Deal found 6/6

Jul 17 - Jul 29

DCA

Washington, D.C. Reagan-National

BHD

Belfast City

2 stops

13h 57m

BHD

Belfast City

DCA

Washington, D.C. Reagan-National

2 stops

21h 30m

$944

American Airlines

Deal found 6/6

Aug 10 - Aug 18

BWI

Baltimore/Washington

BHD

Belfast City

2 stops

17h 52m

BHD

Belfast City

BWI

Baltimore/Washington

2 stops

17h 07m

$988

American Airlines

Deal found 6/6

Aug 10 - Aug 18

BWI

Baltimore/Washington

BHD

Belfast City

1 stop

12h 50m

BHD

Belfast City

BWI

Baltimore/Washington

1 stop

14h 15m

$1,151

American Airlines

Deal found 6/6

Jul 17 - Jul 29

BWI

Baltimore/Washington

BHD

Belfast City

1 stop

19h 00m

BHD

Belfast City

BWI

Baltimore/Washington

2 stops

17h 02m

$1,206

American Airlines

Deal found 6/6

Cheap British Airways flights from Washington, D.C. to Belfast

Take a gander at the lowest prices we've found on British Airways flights from Washington, D.C. to Belfast. Make sure to examine the flight information before completing your reservation.

Sep 23 - Sep 30

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

11h 30m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

18h 30m

$680

British Airways

Deal found 6/6

Aug 10 - Aug 18

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

13h 10m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

15h 35m

$810

British Airways

Deal found 6/6

Aug 10 - Aug 18

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

13h 10m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

2 stops

37h 26m

$841

British Airways

Deal found 6/6

Aug 10 - Aug 18

DCA

Washington, D.C. Reagan-National

BHD

Belfast City

2 stops

17h 26m

BHD

Belfast City

DCA

Washington, D.C. Reagan-National

2 stops

17h 14m

$844

British Airways

Deal found 6/6

Aug 10 - Aug 18

BWI

Baltimore/Washington

BHD

Belfast City

1 stop

12h 50m

BHD

Belfast City

BWI

Baltimore/Washington

2 stops

17h 07m

$1,062

British Airways

Deal found 6/6

Aug 10 - Aug 18

BWI

Baltimore/Washington

BHD

Belfast City

2 stops

15h 14m

BHD

Belfast City

BWI

Baltimore/Washington

2 stops

17h 07m

$1,065

British Airways

Deal found 6/6

Aug 10 - Aug 18

BWI

Baltimore/Washington

BHD

Belfast City

1 stop

12h 50m

BHD

Belfast City

BWI

Baltimore/Washington

1 stop

14h 15m

$1,179

British Airways

Deal found 6/6

Jun 14 - Jun 20

BWI

Baltimore/Washington

BHD

Belfast City

1 stop

9h 45m

BHD

Belfast City

BWI

Baltimore/Washington

2 stops

27h 09m

$2,613

British Airways

Deal found 6/7

Jun 17 - Jun 22

BWI

Baltimore/Washington

BHD

Belfast City

2 stops

33h 23m

BHD

Belfast City

BWI

Baltimore/Washington

1 stop

17h 30m

$2,881

British Airways

Deal found 6/7

Last minute flights from Washington, D.C. to Belfast

Have a look at some of the flights available from Washington, D.C. to Belfast departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

29h 45m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

26h 35m

$1,234

Multiple Airlines

Deal found 6/7

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

15h 00m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

1 stop

26h 30m

$1,261

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

21h 40m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

1 stop

17h 25m

$1,288

Multiple Airlines

Deal found 6/7

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

15h 00m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

2 stops

25h 20m

$1,298

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

30h 25m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

14h 20m

$1,302

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

21h 40m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

2 stops

16h 45m

$1,344

Multiple Airlines

Deal found 6/7

Jun 14 - Jun 20

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

1 stop

15h 00m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

3 stops

31h 40m

$1,366

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BFS

Belfast Intl

2 stops

15h 15m

BFS

Belfast Intl

IAD

Washington, D.C. Dulles Intl

2 stops

16h 45m

$1,434

Multiple Airlines

Deal found 6/7

Jun 17 - Jun 22

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

2 stops

14h 20m

BHD

Belfast City

IAD

Washington, D.C. Dulles Intl

1 stop

14h 20m

$1,559

Multiple Airlines

Deal found 6/7

One-way flights to Belfast from Washington, D.C.

Some of the best available deals we've found on one-way flights from Washington, D.C. to Belfast. Users in need of a round-trip flight from Washington, D.C. to Belfast instead should update the search form at the top of page.

Sep 5

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

2 stops

14h 40m

$629

Aer Lingus

Deal found 6/6

Sep 5

IAD

Washington, D.C. Dulles Intl

BHD

Belfast City

1 stop

13h 25m

$808

Multiple Airlines

Deal found 6/6

Find flights from Washington, D.C. to Belfast within your budget

Fly from

Fly to

Budget

$651 - $1,602

Route

Depart

Return

Price

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 9/20

1 stop10h 20m

Belfast Intl

Fri 9/29

2 stops14h 55m

$651

Pick Dates

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/23

1 stop11h 30m

Belfast City

Sat 9/30

2 stops28h 20m

$665

Pick Dates

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 9/20

1 stop10h 20m

Belfast Intl

Fri 9/29

1 stop12h 05m

$667

Pick Dates

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/23

2 stops18h 13m

Belfast City

Sat 9/30

2 stops28h 20m

$668

Pick Dates

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/23

1 stop11h 30m

Belfast City

Sat 9/30

1 stop18h 30m

$680

Pick Dates

Washington, D.C. Dulles IntlBelfast Intl

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 10/8

1 stop22h 00m

Belfast Intl

Sat 10/14

1 stop25h 25m

$685

Pick Dates

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 8/10

1 stop13h 10m

Belfast City

Fri 8/18

1 stop15h 35m

$810

Pick Dates

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 8/10

2 stops14h 40m

Belfast City

Fri 8/18

2 stops13h 50m

$1,084

Pick Dates

Washington, D.C. Dulles IntlBelfast City

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 7/17

2 stops17h 20m

Belfast City

Sat 7/29

2 stops28h 05m

$1,602

Pick Dates

Flights are sorted by cheapest first

Deals found on 6/7

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown American Airlines, British Airways and Lufthansa from Washington, D.C. to Belfast. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Air France

7.7

Good

198 reviews

Check prices

Reviews

1 / 10

Sorry, I try to avoid flight travelling in the future. Never mind....Sorry

Air France

7.7

Good

198 reviews

Air France

7.7

Good

198 reviews

Check prices

Reviews

1 / 10

Sorry, I try to avoid flight travelling in the future. Never mind....Sorry

American Airlines

7.3

Good

2,149 reviews

Air France

7.7

Good

198 reviews

Check prices

Reviews

1 / 10

Sorry, I try to avoid flight travelling in the future. Never mind....Sorry

Lufthansa

6.8

Okay

1,199 reviews

Air France

7.7

Good

198 reviews

Check prices

Reviews

1 / 10

Sorry, I try to avoid flight travelling in the future. Never mind....Sorry

Aer Lingus

6.7

Okay

273 reviews

Air France

7.7

Good

198 reviews

Check prices

Reviews

1 / 10

Sorry, I try to avoid flight travelling in the future. Never mind....Sorry

British Airways

6.6

Okay

557 reviews

Air France

7.7

Good

198 reviews

Check prices

Reviews

1 / 10

Sorry, I try to avoid flight travelling in the future. Never mind....Sorry

Related info for your journey

IAD and BFS are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. IAD to BFS refers to a flight route from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: Belfast City Airport (BHD), Glasgow Prestwick Airport (PIK), Londonderry Eglinton Airport (LDY), Isle of Islay Glenegedale Airport (ILY), Campbeltown Machrihanish Airport (CAL).

Top airline flying from Washington, D.C. to Belfast

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
British Airways	Cheapest$623	Average$843	FlexibilityNo cancel fee	On-time70%	COVID-19 safety	Search British Airways flights

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Cheap flights from Washington, D.C. (WAS) to Belfast from $629

This is the cheapest one-way flight price, found on 6/6. Prices may vary by date and flight preferences.

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How to find the cheapest flight from Washington, D.C. (WAS) to Belfast

All the information you need to plan the best WAS to BF1 flight in 2023: compare Washington, D.C. to Belfast flight prices with the expected peak season, weather and rainfall in Belfast.

Popular in

Cheapest in

Round-trip from

One-way from

What is the cheapest month to fly from Washington, D.C. to Belfast?

When is the cheapest time to fly from Washington, D.C. to Belfast (WAS - BFS)?

Cheap flights from Washington, D.C. to Belfast in June, July 2023

The best prices found for WAS to Belfast flights for June, July

Scroll through some of the best deals on flights from Washington, D.C. to Belfast in 2023. For more flight deals, be sure to check back very soon.

Washington, D.C. to Belfast 2023 flight deals

Cheap flights to Belfast from Washington, D.C. found for this year

Scroll through some of the best deals on flights from Washington, D.C. to Belfast in 2023. For more flight deals, be sure to check back very soon.

Cheap American Airlines flights from Washington, D.C. to Belfast

Peruse some of the lowest-priced American Airlines flights we've found from Washington, D.C. to Belfast. Deals update often to give you more flight options matching your criteria

Cheap British Airways flights from Washington, D.C. to Belfast

Take a gander at the lowest prices we've found on British Airways flights from Washington, D.C. to Belfast. Make sure to examine the flight information before completing your reservation.

Last minute flights from Washington, D.C. to Belfast

Late deals on return flights to Belfast from Washington, D.C., departing today and this week

Have a look at some of the flights available from Washington, D.C. to Belfast departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Belfast from Washington, D.C.

The cheapest one-way flights from Washington, D.C. to Belfast

Some of the best available deals we've found on one-way flights from Washington, D.C. to Belfast. Users in need of a round-trip flight from Washington, D.C. to Belfast instead should update the search form at the top of page.

Find flights from Washington, D.C. to Belfast within your budget

Use the slider to find flights from Washington, D.C. to Belfast that fit your budget.

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown American Airlines, British Airways and Lufthansa from Washington, D.C. to Belfast. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Useful info, stats and facts about Washington, D.C. to Belfast flights.

Which airlines flying from Washington, D.C. to Belfast have flexible cancellations due to COVID-19?

Can I find flights from Washington, D.C. to Belfast for under $700 on Cheapflights?

Are there last-minute flights available from Washington, D.C. to Belfast for under $1,300?

What are the cheapest airlines flying from Washington, D.C. to Belfast round-trip?

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

What does IAD to BFS mean?

Other flights from Washington, D.C.

Flights to Belfast from Washington, D.C.

Rent a Car

Top airline flying from Washington, D.C. to Belfast

The chart below displays the airlines Cheapflights users traveling from Washington, D.C. to Belfast choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2023