Cheap flights from the United States to Belfast from £191

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Belfast departing on 14/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from the United States to Belfast

Recent return flight deals from the United States to Belfast

Enter your travel dates to find the best prices.
Multiple Airlines Logo
18:05 - 19:35
JFK
-
BFS
20h 30m1 stop
Multiple Airlines Logo
20:45 - 15:55
BFS
-
JFK
24h 10m1 stop
£413Multiple Airlines
Wed, 28 Jan - Sun, 1 Feb
Multiple Airlines Logo
19:50 - 18:15
BOS
-
BFS
17h 25m2 stops
Multiple Airlines Logo
06:30 - 17:50
BFS
-
BOS
16h 20m2 stops
£425Multiple Airlines
Sun, 11 Jan - Tue, 27 Jan
Multiple Airlines Logo
20:00 - 18:15
BOS
-
BFS
17h 15m1 stop
Multiple Airlines Logo
06:00 - 16:00
BFS
-
BOS
15h 00m1 stop
£438Multiple Airlines
Sun, 11 Jan - Tue, 27 Jan
Multiple Airlines Logo
17:05 - 18:15
BOS
-
BFS
20h 10m2 stops
Multiple Airlines Logo
06:00 - 16:00
BFS
-
BOS
15h 00m1 stop
£439Multiple Airlines
Sun, 11 Jan - Tue, 27 Jan
Multiple Airlines Logo
19:50 - 18:15
BOS
-
BFS
17h 25m2 stops
Multiple Airlines Logo
06:30 - 17:50
BFS
-
BOS
16h 20m2 stops
£452Multiple Airlines
Sun, 11 Jan - Tue, 27 Jan
Multiple Airlines Logo
19:35 - 22:00
EWR
-
BFS
21h 25m2 stops
Multiple Airlines Logo
08:05 - 18:25
BFS
-
EWR
15h 20m2 stops
£452Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
19:01 - 16:15
JFK
-
BFS
16h 14m1 stop
Multiple Airlines Logo
06:00 - 22:55
BFS
-
JFK
21h 55m1 stop
£452Multiple Airlines
Mon, 12 Jan - Tue, 27 Jan
Multiple Airlines Logo
14:35 - 22:00
SEA
-
BFS
23h 25m2 stops
Multiple Airlines Logo
08:05 - 17:00
BFS
-
SEA
16h 55m2 stops
£452Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
18:30 - 22:00
ORD
-
BFS
21h 30m2 stops
Multiple Airlines Logo
08:05 - 17:20
BFS
-
ORD
15h 15m2 stops
£452Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb
Multiple Airlines Logo
18:05 - 10:05
JFK
-
BFS
11h 00m1 stop
Multiple Airlines Logo
06:30 - 15:55
BFS
-
JFK
14h 25m1 stop
£455Multiple Airlines
Fri, 30 Jan - Fri, 6 Feb

momondo Fare Finder

 
Customise your flight search to find flights from United States to Belfast Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from the United States to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Wed 28/1

18:05-19:35

1 stop20h 30m

Belfast Intl

Sun 1/2

20:45-15:55

1 stop24h 10m

£413

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 11/1

19:50-18:15

2 stops17h 25m

Belfast Intl

Tue 27/1

06:30-17:50

2 stops16h 20m

£425

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 11/1

20:00-18:15

1 stop17h 15m

Belfast Intl

Tue 27/1

06:00-16:00

1 stop15h 00m

£438

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 11/1

17:05-18:15

2 stops20h 10m

Belfast Intl

Tue 27/1

06:00-16:00

1 stop15h 00m

£439

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 11/1

19:50-18:15

2 stops17h 25m

Belfast Intl

Tue 27/1

06:30-17:50

2 stops16h 20m

£452

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Fri 30/1

19:35-22:00

2 stops21h 25m

Belfast Intl

Fri 6/2

08:05-18:25

2 stops15h 20m

£452

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 12/1

19:01-16:15

1 stop16h 14m

Belfast Intl

Tue 27/1

06:00-22:55

1 stop21h 55m

£452

SeattleBelfast

SEA - BFS

SEABFS

Seattle/Tacoma Intl

Fri 30/1

14:35-22:00

2 stops23h 25m

Belfast Intl

Fri 6/2

08:05-17:00

2 stops16h 55m

£452

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 30/1

18:30-22:00

2 stops21h 30m

Belfast Intl

Fri 6/2

08:05-17:20

2 stops15h 15m

£452

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 30/1

18:05-10:05

1 stop11h 00m

Belfast Intl

Fri 6/2

06:30-15:55

1 stop14h 25m

£455

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Belfast from

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

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

What is the cheapest month to fly to Belfast Intl Airport?

The month of November is, on average, the cheapest month to fly to Belfast Intl Airport from United States, with most prices found around £344. If you’re not able to fly to Belfast Intl Airport in November, then September is your next best option. Flight prices from United States to Belfast Intl Airport during September average around £416.

Cheap United States to Belfast Intl Airport flight deals and tips

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

Fastest flight time

9h 15m

Direct flights

None
The fastest flight from United States to Belfast Intl Airport takes 9h 15m
There are no direct flights from United States to Belfast Intl Airport. There are no popular flight routes from United States to Belfast Intl Airport.
  • When did momondo last update prices for flights from United States to Belfast Intl Airport?

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

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

    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 Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The required travel and health documents for your Belfast Intl Airport 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 Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Ballymena
Newry
Armagh
Cookstown
Dungannon
Portadown

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 provides multiple filters to help you find the best flight to Belfast from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Belfast from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Sat 17/1
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