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

British Airways is the most popular carrier operating from United States to Northern Ireland

How long is the flight from United States to Northern Ireland?

The average flight duration from United States to Northern Ireland depends on which airport you fly into and out of. Flying from Boston to Belfast Intl Airport is 10h 10m on average, while flying from New York to Belfast Intl Airport is 10h 40m on average. Belfast Intl Airport is the most popular airport in Northern Ireland.

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

Prices for flights from United States to Northern Ireland were last updated today.

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

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 Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£182 Cheap Flights from the United States to Northern Ireland in 2026

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Find the cheapest flights from the United States to Northern Ireland

Round-trip

One-way

Last minute

Recent return flight deals from the United States to Northern Ireland

Enter your travel dates to find the best prices.

18:20 - 07:35

JFK

BFS

32h 15m

1 stop

20:15 - 22:30

BFS

JFK

55h 15m

2 stops

£462Multiple Airlines

Mon, 30 Mar - Tue, 14 Apr

18:20 - 20:30

JFK

BHD

21h 10m

1 stop

07:00 - 15:55

BHD

JFK

13h 55m

1 stop

£463Multiple Airlines

Fri, 1 May - Sat, 9 May

23:10 - 20:30

JFK

BHD

16h 20m

2 stops

07:00 - 22:05

BHD

JFK

20h 05m

2 stops

£479Multiple Airlines

Fri, 1 May - Sat, 9 May

18:20 - 23:00

JFK

BFS

23h 40m

1 stop

06:35 - 22:30

BFS

JFK

20h 55m

2 stops

£479Multiple Airlines

Thu, 16 Apr - Thu, 23 Apr

18:20 - 15:30

JFK

BFS

16h 10m

1 stop

06:10 - 15:55

BFS

JFK

14h 45m

1 stop

£490Multiple Airlines

Thu, 30 Apr - Thu, 7 May

18:20 - 13:50

JFK

BFS

14h 30m

1 stop

06:00 - 15:55

BFS

JFK

14h 55m

1 stop

£491Multiple Airlines

Fri, 1 May - Sat, 9 May

20:20 - 18:55

SEA

BHD

14h 35m

1 stop

09:40 - 18:25

BHD

SEA

16h 45m

1 stop

£629British Airways

Tue, 1 Sep - Tue, 22 Sep

20:20 - 20:35

SEA

BHD

16h 15m

1 stop

19:40 - 11:35

BHD

SEA

23h 55m

1 stop

£630British Airways

Wed, 2 Sep - Wed, 9 Sep

21:25 - 15:20

EWR

BHD

12h 55m

1 stop

12:45 - 19:25

BHD

EWR

11h 40m

1 stop

£645British Airways

Tue, 1 Sep - Thu, 10 Sep

15:19 - 15:20

LGA

BHD

19h 01m

2 stops

09:40 - 21:29

BHD

LGA

16h 49m

2 stops

£709American Airlines

Tue, 14 Apr - Tue, 21 Apr

British Airways flights from United States to Northern Ireland

Our best British Airways deals on United States to Northern Ireland flight tickets

British Airways

1 Sept

SEA20:20Seattle/Tacoma Intl

14h 35m

1 stop

BHD18:55Belfast City

22 Sept

BHD09:40Belfast City

16h 45m

1 stop

SEA18:25Seattle/Tacoma Intl

£629

British Airways

2 Sept

SEA20:20Seattle/Tacoma Intl

16h 15m

1 stop

BHD20:35Belfast City

9 Sept

BHD19:40Belfast City

23h 55m

1 stop

SEA11:35Seattle/Tacoma Intl

£630

British Airways

26 Aug

JFK09:35New York John F Kennedy Intl

18h 15m

1 stop

BHD08:50Belfast City

5 Sept

BHD07:05Belfast City

13h 15m

1 stop

JFK15:20New York John F Kennedy Intl

£633

American Airlines flights from United States to Northern Ireland

Our best American Airlines deals on United States to Northern Ireland flight tickets

American Airlines

29 Apr

JFK18:20New York John F Kennedy Intl

14h 15m

1 stop

BHD13:35Belfast City

6 May

BHD11:35Belfast City

14h 30m

1 stop

JFK21:05New York John F Kennedy Intl

£647

American Airlines

13 Apr

EWR21:25Newark

10h 30m

1 stop

BHD12:55Belfast City

27 Apr

BHD11:35Belfast City

12h 50m

1 stop

EWR19:25Newark

£686

American Airlines

2 Sept

SEA13:32Seattle/Tacoma Intl

16h 03m

2 stops

BHD13:35Belfast City

9 Sept

BHD06:30Belfast City

18h 59m

2 stops

SEA17:29Seattle/Tacoma Intl

£707

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 30/3

18:20-07:35

1 stop32h 15m

Belfast Intl

Tue 14/4

20:15-22:30

2 stops55h 15m

£462

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Fri 1/5

18:20-20:30

1 stop21h 10m

Belfast City

Sat 9/5

07:00-15:55

1 stop13h 55m

£463

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Fri 1/5

23:10-20:30

2 stops16h 20m

Belfast City

Sat 9/5

07:00-22:05

2 stops20h 05m

£479

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 16/4

18:20-23:00

1 stop23h 40m

Belfast Intl

Thu 23/4

06:35-22:30

2 stops20h 55m

£479

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 30/4

18:20-15:30

1 stop16h 10m

Belfast Intl

Thu 7/5

06:10-15:55

1 stop14h 45m

£490

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 1/5

18:20-13:50

1 stop14h 30m

Belfast Intl

Sat 9/5

06:00-15:55

1 stop14h 55m

£491

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 1/9

20:20-18:55

1 stop14h 35m

Belfast City

Tue 22/9

09:40-18:25

1 stop16h 45m

£629

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 2/9

20:20-20:35

1 stop16h 15m

Belfast City

Wed 9/9

19:40-11:35

1 stop23h 55m

£630

Fastest return journey

NewarkBelfast

EWR - BHD

EWRBHD

Newark

Tue 1/9

21:25-15:20

1 stop12h 55m

Belfast City

Thu 10/9

12:45-19:25

1 stop11h 40m

£645

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Tue 14/4

15:19-15:20

2 stops19h 01m

Belfast City

Tue 21/4

09:40-21:29

2 stops16h 49m

£709

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 Northern Ireland

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 Northern Ireland?

In general, November is the cheapest month to fly from United States to Northern Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £345. If you’re not able to fly to Northern Ireland in November, then February is your next best option. Flight prices from United States to Northern Ireland during February average around £458.

Can stopping save me money on United States to Northern Ireland flights?

You could potentially save up to 8% on your flight if you consider stops on a United States to Northern Ireland flight.

Cheap United States to Northern Ireland flight deals and tips

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

Fastest flight time	9h 50m
Direct flights	None

The fastest flight from United States to Northern Ireland takes 9h 50m

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

Search flight deals

When did momondo last update prices for flights from United States to Northern Ireland?
Prices for flights from United States to Northern Ireland were last updated today.
How old do you have to be to fly from United States to Northern Ireland?
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 Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from United States to Northern Ireland for you.

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

Yes. momondo enables you to select and highlight flights to Northern Ireland from United States with this policy.

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

Once you have performed a search for United States to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Northern Ireland from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.