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Cheap flights from the United States to Belfast from £158

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
1 Aug — 8 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from USA to Belfast
Explore the most affordable flight options available from USA to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2026.

Thu 8/1018:20
JFK
-
BFS
1 stop16h 00m
Multiple Airlines
Wed 21/1020:15
BFS
-
JFK
1 stop24h 40m
Multiple Airlines
Deal found 1/7£439
Sat 3/1000:30
JFK
-
BFS
2 stops30h 50m
Multiple Airlines
Wed 21/1020:15
BFS
-
JFK
1 stop24h 40m
Multiple Airlines
Deal found 1/7£449
Sat 10/1018:20
JFK
-
BFS
1 stop12h 35m
Multiple Airlines
Wed 21/1020:15
BFS
-
JFK
1 stop24h 40m
Multiple Airlines
Deal found 1/7£451
Wed 7/1020:30
JFK
-
BFS
2 stops18h 45m
Multiple Airlines
Wed 21/1020:15
BFS
-
JFK
1 stop24h 40m
Multiple Airlines
Deal found 1/7£454
Tue 6/1018:20
JFK
-
BFS
1 stop15h 15m
Multiple Airlines
Thu 22/1006:35
BFS
-
JFK
1 stop14h 20m
Multiple Airlines
Deal found 1/7£460
Thu 1/1018:20
JFK
-
BFS
1 stop10h 35m
Multiple Airlines
Mon 5/1020:55
BFS
-
JFK
1 stop24h 00m
Multiple Airlines
Deal found 28/6£462
Thu 8/1018:20
JFK
-
BFS
1 stop16h 00m
Multiple Airlines
Thu 22/1020:40
BFS
-
JFK
1 stop24h 15m
Multiple Airlines
Deal found 1/7£468
Sat 10/1018:20
JFK
-
BFS
1 stop12h 35m
Multiple Airlines
Thu 22/1020:40
BFS
-
JFK
1 stop24h 15m
Multiple Airlines
Deal found 1/7£480
Thu 8/1023:10
JFK
-
BFS
2 stops18h 50m
Multiple Airlines
Tue 13/1020:15
BFS
-
JFK
3 stops31h 10m
Multiple Airlines
Deal found 29/6£486
Tue 6/1018:20
JFK
-
BFS
1 stop10h 35m
Multiple Airlines
Wed 21/1014:35
BFS
-
JFK
1 stop30h 20m
Multiple Airlines
Deal found 1/7£487
Wed 7/1020:30
JFK
-
BFS
2 stops16h 25m
Multiple Airlines
Thu 22/1020:40
BFS
-
JFK
1 stop24h 15m
Multiple Airlines
Deal found 1/7£489
Sun 16/819:10
BOS
-
BFS
1 stop21h 45m
Multiple Airlines
Tue 1/907:35
BFS
-
BOS
2 stops42h 30m
Multiple Airlines
Deal found 30/6£506

Find flight deals from USA to Belfast

Keep the following information in mind while searching for USA to Belfast flight deals. Data was last updated 2 July 2026.

Round-trip from

£439

One-way from

£158

Popular in

December

Cheapest in

November

Average price

£548
8/10-21/10
  • 8/10-21/10
  • 2 total stops
  • 40h 40m total
  • USA to Belfast
Search Deals
27/7
  • 27/7
  • 1 total stop
  • 16h 55m total
  • USA to Belfast
Search Deals
High demand for flights, 7% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from USA 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, Cheapflights users made 858,174 searches. Data last updated 2 July 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

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 8/10

23:10-23:00

2 stops18h 50m

Belfast Intl

Wed 21/10

20:15-15:55

1 stop24h 40m

£452

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 6/10

18:20-14:35

1 stop15h 15m

Belfast Intl

Thu 22/10

06:35-15:55

1 stop14h 20m

£460

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 1/10

18:20-09:55

1 stop10h 35m

Belfast Intl

Mon 5/10

20:55-15:55

1 stop24h 00m

£462

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sat 10/10

18:20-11:55

1 stop12h 35m

Belfast Intl

Thu 22/10

20:40-15:55

1 stop24h 15m

£480

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 16/8

19:10-21:55

1 stop21h 45m

Belfast Intl

Tue 1/9

07:35-21:05

2 stops42h 30m

£506

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 8/10

23:10-23:00

2 stops18h 50m

Belfast Intl

Tue 13/10

08:50-12:20

2 stops32h 30m

£516

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Fri 13/11

19:35-22:00

3 stops21h 25m

Belfast Intl

Sun 15/11

07:45-22:10

3 stops43h 25m

£549

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 3/8

18:20-09:55

1 stop10h 35m

Belfast Intl

Wed 19/8

20:20-22:25

3 stops31h 05m

£552

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Mon 12/10

20:25-23:20

2 stops21h 55m

Belfast Intl

Fri 16/10

12:15-21:00

3 stops37h 45m

£557

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 16/8

16:55-15:20

2 stops17h 25m

Belfast Intl

Sun 23/8

19:35-19:20

3 stops28h 45m

£559

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from USA to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from USA with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Belfast

What is the cheapest month to book a flight from USA to Belfast?

Currently, November is the cheapest month in which you can book a flight from USA to Belfast (average of £347). Flying from USA to Belfast in December is currently the most expensive (average of £477). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from USA to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from USA to Belfast?

    There are many flights that can get you from USA to Belfast in 15h 32m. Fly via British Airways to get the fastest option. USA and Belfast are separated by a distance of 2981 mi.

  • What are the most popular routes from USA to Belfast?

    When deciding which route to take from USA to Belfast consider Detroit Metropolitan Wayne County - Belfast Intl, New York John F Kennedy Intl - Belfast Intl or Washington, D.C. Dulles Intl - Belfast Intl as they are the most popular.

  • Can I find deals for flights from USA to Belfast that include hotel bookings?

    Yes. In addition to deals on USA to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from USA to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Belfast.

  • Can I find deals for business class flights from USA to Belfast?

    Yes. Cheapflights offers flight deals from USA to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from USA to Belfast?

    Currently, November is the cheapest month in which you can book a flight from USA to Belfast (average of £347). Flying from USA to Belfast in December is currently the most expensive (average of £477). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from USA to Belfast?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from USA to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from USA to Belfast?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from USA to Belfast for you. Better yet — we are completely free to use.

Can Cheapflights find flights from USA to Belfast with no change fees?

Certainly. Search results for flights to Belfast from USA shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from USA to Belfast become cheaper?

Of course! You can now track prices for flights from USA to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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