What is the cheapest airline that flies from United States to Belfast?

Aer Lingus, British Airways, and KLM are the most popular carriers operating from United States to Belfast

How long does it take to fly to Belfast?

Flight times from United States to Belfast vary, but if you’re flying out of Boston and flying into Belfast Intl Airport (one of the most popular routes), then the duration is 9h 35m on average. Another popular route from United States to Belfast is flying from New York to Belfast Intl Airport, which will take roughly 10h 05m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from United States to Belfast?

Prices for flights from United States to Belfast are updated daily.

How old do you have to be to fly from United States to Belfast?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Belfast.

What documentation or ID do you need to fly to Belfast?

The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£175 Cheap Flights from the United States to Belfast in 2026

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Find the cheapest flights from the United States to Belfast

Round-trip

One-way

Last minute

Recent return flight deals from the United States to Belfast

Enter your travel dates to find the best prices.

18:20 - 20:25

JFK

BFS

21h 05m

1 stop

21:10 - 15:55

BFS

JFK

23h 45m

1 stop

£382Multiple Airlines

Mon, 4 May - Wed, 13 May

18:20 - 18:50

JFK

BFS

19h 30m

1 stop

06:10 - 15:55

BFS

JFK

14h 45m

1 stop

£382Multiple Airlines

Mon, 4 May - Mon, 11 May

18:20 - 09:50

JFK

BHD

10h 30m

1 stop

12:45 - 22:30

BHD

JFK

38h 45m

2 stops

£389Multiple Airlines

Mon, 4 May - Wed, 13 May

18:05 - 10:05

JFK

BFS

11h 00m

1 stop

17:35 - 16:55

BFS

JFK

27h 20m

1 stop

£394Multiple Airlines

Wed, 18 Feb - Tue, 10 Mar

19:15 - 10:15

JFK

BHD

11h 00m

1 stop

11:25 - 18:15

BHD

JFK

10h 50m

1 stop

£400British Airways

Wed, 11 Mar - Wed, 18 Mar

22:35 - 16:35

EWR

BHD

14h 00m

1 stop

06:35 - 14:50

BHD

EWR

12h 15m

1 stop

£400British Airways

Wed, 11 Mar - Wed, 18 Mar

19:20 - 21:00

EWR

BHD

21h 40m

2 stops

06:30 - 23:39

BHD

EWR

21h 09m

2 stops

£427Delta

Wed, 11 Mar - Wed, 18 Mar

14:00 - 16:50

LGA

BHD

21h 50m

2 stops

06:30 - 17:29

BHD

LGA

15h 59m

2 stops

£463Delta

Wed, 25 Feb - Mon, 2 Mar

22:59 - 19:50

DFW

BHD

14h 51m

1 stop

06:30 - 20:50

BHD

DFW

20h 20m

1 stop

£538American Airlines

Wed, 13 May - Wed, 20 May

22:59 - 19:50

DFW

BHD

14h 51m

1 stop

10:05 - 21:45

BHD

DFW

17h 40m

2 stops

£545American Airlines

Wed, 13 May - Wed, 20 May

American Airlines flights from United States to Belfast

Our best American Airlines deals on United States to Belfast flight tickets

American Airlines

11 Mar

EWR19:30Newark

9h 40m

1 stop

BHD09:10Belfast City

18 Mar

BHD06:35Belfast City

18h 25m

2 stops

EWR21:00Newark

£429

American Airlines

26 Feb

JFK21:50New York John F Kennedy Intl

13h 50m

1 stop

BHD16:40Belfast City

5 Mar

BHD10:40Belfast City

13h 00m

1 stop

JFK18:40New York John F Kennedy Intl

£440

American Airlines

8 Feb

JFK18:25New York John F Kennedy Intl

10h 55m

1 stop

BHD10:20Belfast City

21 Feb

BHD06:35Belfast City

17h 05m

1 stop

JFK18:40New York John F Kennedy Intl

£518

British Airways flights from United States to Belfast

Our best British Airways deals on United States to Belfast flight tickets

British Airways

11 Mar

JFK19:15New York John F Kennedy Intl

11h 00m

1 stop

BHD10:15Belfast City

18 Mar

BHD11:25Belfast City

10h 50m

1 stop

JFK18:15New York John F Kennedy Intl

£400

British Airways

1 Mar

EWR21:35Newark

11h 20m

1 stop

BHD13:55Belfast City

10 Mar

BHD06:35Belfast City

12h 15m

1 stop

EWR14:50Newark

£403

British Airways

24 Feb

JFK18:50New York John F Kennedy Intl

10h 40m

1 stop

BHD10:30Belfast City

2 Mar

BHD19:25Belfast City

22h 10m

1 stop

JFK12:35New York John F Kennedy Intl

£405

Fly from

Fly to

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 4/5

18:20-20:25

1 stop21h 05m

Belfast Intl

Wed 13/5

21:10-15:55

1 stop23h 45m

£382

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 4/5

18:20-18:50

1 stop19h 30m

Belfast Intl

Mon 11/5

06:10-15:55

1 stop14h 45m

£382

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Mon 4/5

18:20-09:50

1 stop10h 30m

Belfast City

Wed 13/5

12:45-22:30

2 stops38h 45m

£389

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Wed 18/2

18:05-10:05

1 stop11h 00m

Belfast Intl

Tue 10/3

17:35-16:55

1 stop27h 20m

£394

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Wed 11/3

19:15-10:15

1 stop11h 00m

Belfast City

Wed 18/3

11:25-18:15

1 stop10h 50m

£400

NewarkBelfast

EWR - BHD

EWRBHD

Newark

Wed 11/3

22:35-16:35

1 stop14h 00m

Belfast City

Wed 18/3

06:35-14:50

1 stop12h 15m

£400

NewarkBelfast

EWR - BHD

EWRBHD

Newark

Wed 11/3

19:20-21:00

2 stops21h 40m

Belfast City

Wed 18/3

06:30-23:39

2 stops21h 09m

£427

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Wed 25/2

14:00-16:50

2 stops21h 50m

Belfast City

Mon 2/3

06:30-17:29

2 stops15h 59m

£463

DallasBelfast

DFW - BHD

DFWBHD

Dallas/Fort Worth

Wed 13/5

22:59-19:50

1 stop14h 51m

Belfast City

Wed 20/5

06:30-20:50

1 stop20h 20m

£538

DallasBelfast

DFW - BHD

DFWBHD

Dallas/Fort Worth

Wed 13/5

22:59-19:50

1 stop14h 51m

Belfast City

Wed 20/5

10:05-21:45

2 stops17h 40m

£545

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from United States is in November. Flight prices, which tend to average around £335, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £405.

Cheap United States to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Belfast

Fastest flight time	9h 35m
Direct flights	None

The fastest flight from United States to Belfast takes 9h 35m

There are no direct flights from United States to Belfast. There are no popular flight routes from United States to Belfast.

Search flight deals

When did momondo last update prices for flights from United States to Belfast?
Prices for flights from United States to Belfast are updated daily.
How old do you have to be to fly from United States to Belfast?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Belfast.
What documentation or ID do you need to fly to Belfast?
The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from United States to Belfast?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from United States.

Can I find flights from United States to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from United States to Belfast?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United States to Belfast.

I’m not ready to book a flight from United States to Belfast right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from United States and alert you when they change.