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Cheap flights from the United States to Belfast from £207

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 27/4. 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
23:00 - 20:25
BOS
-
BFS
16h 25m
2 stops
Multiple Airlines Logo
07:00 - 21:45
BFS
-
BOS
43h 45m
2 stops
£466Multiple Airlines
Mon, 13 Apr - Wed, 29 Apr
Multiple Airlines Logo
23:00 - 22:40
BOS
-
BFS
18h 40m
2 stops
Multiple Airlines Logo
06:10 - 21:45
BFS
-
BOS
20h 35m
2 stops
£469Multiple Airlines
Sat, 25 Apr - Thu, 30 Apr
British Airways Logo
19:35 - 12:55
BOS
-
BHD
12h 20m
1 stop
British Airways Logo
11:35 - 20:05
BHD
-
BOS
13h 30m
1 stop
£528British Airways
Mon, 4 May - Wed, 13 May
British Airways Logo
19:35 - 10:45
JFK
-
BHD
10h 10m
1 stop
British Airways Logo
09:35 - 15:20
BHD
-
JFK
10h 45m
1 stop
£529British Airways
Tue, 1 Sep - Thu, 10 Sep
American Airlines Logo
18:20 - 10:45
JFK
-
BHD
11h 25m
1 stop
American Airlines Logo
09:35 - 17:00
BHD
-
JFK
12h 25m
1 stop
£533American Airlines
Tue, 14 Apr - Thu, 30 Apr
American Airlines Logo
19:20 - 13:35
JFK
-
BHD
13h 15m
1 stop
American Airlines Logo
11:35 - 21:05
BHD
-
JFK
14h 30m
1 stop
£534American Airlines
Wed, 29 Apr - Wed, 6 May
Delta Logo
13:00 - 09:20
LGA
-
BHD
15h 20m
2 stops
Delta Logo
09:50 - 20:32
BHD
-
LGA
15h 42m
2 stops
£559Delta
Wed, 2 Sep - Wed, 9 Sep
Delta Logo
11:00 - 09:20
LGA
-
BHD
17h 20m
2 stops
Delta Logo
09:50 - 21:27
BHD
-
LGA
16h 37m
2 stops
£596Delta
Tue, 1 Sep - Thu, 10 Sep
KLM Logo
14:00 - 09:20
LGA
-
BHD
14h 20m
2 stops
KLM Logo
09:50 - 20:29
BHD
-
LGA
15h 39m
2 stops
£634KLM
Mon, 6 Apr - Mon, 13 Apr
KLM Logo
14:00 - 09:20
LGA
-
BHD
14h 20m
2 stops
KLM Logo
09:50 - 19:58
BHD
-
LGA
15h 08m
2 stops
£664KLM
Mon, 31 Aug - Thu, 10 Sep

American Airlines flights from United States to Belfast

Our best American Airlines deals on United States to Belfast flight tickets
American Airlines
14 Apr
JFK18:20New York John F Kennedy Intl
11h 25m
1 stop
BHD10:45Belfast City
30 Apr
BHD09:35Belfast City
12h 25m
1 stop
JFK17:00New York John F Kennedy Intl
£533
American Airlines
29 Apr
JFK19:20New York John F Kennedy Intl
13h 15m
1 stop
BHD13:35Belfast City
6 May
BHD11:35Belfast City
14h 30m
1 stop
JFK21:05New York John F Kennedy Intl
£534
American Airlines
3 May
BOS20:10Boston Logan Intl
16h 30m
1 stop
BHD17:40Belfast City
10 May
BHD13:10Belfast City
15h 42m
2 stops
BOS23:52Boston Logan Intl
£588

British Airways flights from United States to Belfast

Our best British Airways deals on United States to Belfast flight tickets
British Airways
18 Mar
JFK22:35New York John F Kennedy Intl
11h 40m
1 stop
BHD14:15Belfast City
27 Mar
BHD08:45Belfast City
10h 35m
1 stop
JFK15:20New York John F Kennedy Intl
£519
British Airways
4 May
BOS21:50Boston Logan Intl
12h 40m
1 stop
BHD15:30Belfast City
13 May
BHD11:35Belfast City
13h 30m
1 stop
BOS20:05Boston Logan Intl
£528
British Airways
4 May
BOS21:50Boston Logan Intl
10h 05m
1 stop
BHD12:55Belfast City
13 May
BHD11:35Belfast City
10h 25m
1 stop
BOS17:00Boston Logan Intl
£529

momondo Fare Finder

 
Customise your flight search to find flights from United States to Belfast 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 15 March 2026.
Use the filters below to find and compare flights from the United States to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 13/4

23:00-20:25

2 stops16h 25m

Belfast Intl

Wed 29/4

07:00-21:45

2 stops43h 45m

£466

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 25/4

23:00-22:40

2 stops18h 40m

Belfast Intl

Thu 30/4

06:10-21:45

2 stops20h 35m

£469

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 4/5

19:35-12:55

1 stop12h 20m

Belfast City

Wed 13/5

11:35-20:05

1 stop13h 30m

£528
Fastest return journey

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 1/9

19:35-10:45

1 stop10h 10m

Belfast City

Thu 10/9

09:35-15:20

1 stop10h 45m

£529

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 14/4

18:20-10:45

1 stop11h 25m

Belfast City

Thu 30/4

09:35-17:00

1 stop12h 25m

£533

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Wed 29/4

19:20-13:35

1 stop13h 15m

Belfast City

Wed 6/5

11:35-21:05

1 stop14h 30m

£534

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Wed 2/9

13:00-09:20

2 stops15h 20m

Belfast City

Wed 9/9

09:50-20:32

2 stops15h 42m

£559

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Tue 1/9

11:00-09:20

2 stops17h 20m

Belfast City

Thu 10/9

09:50-21:27

2 stops16h 37m

£596

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Mon 6/4

14:00-09:20

2 stops14h 20m

Belfast City

Mon 13/4

09:50-20:29

2 stops15h 39m

£634

New YorkBelfast

LGA - BHD

LGABHD

New York LaGuardia

Mon 31/8

14:00-09:20

2 stops14h 20m

Belfast City

Thu 10/9

09:50-19:58

2 stops15h 08m

£664

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

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?

The cheapest month to fly to Belfast from United States is in November. Flight prices, which tend to average around £348, 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 February is also cheap. Prices for this month can be found on momondo for an average of £461.

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 55m

Direct flights

None
The fastest flight from United States to Belfast takes 9h 55m
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.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport