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Cheap flights from the United States to Belfast Intl Airport from £241

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 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
29 May — 5 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from USA to Belfast Intl
Explore the most affordable flight options available from USA to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2026.

Thu 24/923:00
BOS
-
BFS
2 stops17h 00m
Multiple Airlines
Thu 22/1010:15
BFS
-
BOS
1 stop16h 00m
Multiple Airlines
Deal found 26/4£440
Tue 13/1018:20
JFK
-
BFS
1 stop21h 35m
Multiple Airlines
Mon 19/1020:55
BFS
-
JFK
1 stop24h 00m
Multiple Airlines
Deal found 28/4£503
Thu 17/923:00
BOS
-
BFS
2 stops17h 00m
Multiple Airlines
Thu 1/1010:15
BFS
-
BOS
1 stop16h 00m
Multiple Airlines
Deal found 26/4£515
Sat 3/1018:20
JFK
-
BFS
1 stop32h 25m
Multiple Airlines
Sat 10/1006:20
BFS
-
JFK
1 stop14h 35m
Multiple Airlines
Deal found 27/4£523
Tue 28/418:20
JFK
-
BFS
1 stop10h 35m
Multiple Airlines
Thu 7/506:35
BFS
-
JFK
1 stop14h 20m
Multiple Airlines
Deal found 27/4£541
Wed 16/920:25
EWR
-
BFS
2 stops21h 45m
Multiple Airlines
Wed 23/916:55
BFS
-
EWR
2 stops33h 05m
Multiple Airlines
Deal found 27/4£559
Wed 27/520:25
EWR
-
BFS
2 stops19h 35m
Multiple Airlines
Wed 3/620:15
BFS
-
EWR
3 stops29h 45m
Multiple Airlines
Deal found 27/4£572
Wed 27/520:30
JFK
-
BFS
2 stops19h 30m
Multiple Airlines
Wed 3/620:15
BFS
-
JFK
3 stops28h 50m
Multiple Airlines
Deal found 27/4£572
Thu 30/418:20
JFK
-
BFS
1 stop33h 05m
Multiple Airlines
Thu 7/506:35
BFS
-
JFK
1 stop14h 20m
Multiple Airlines
Deal found 29/4£574
Sun 10/523:00
EWR
-
BFS
1 stop14h 25m
Multiple Airlines
Mon 18/514:40
BFS
-
EWR
2 stops35h 15m
Multiple Airlines
Deal found 24/4£578
Sat 2/518:20
JFK
-
BFS
1 stop10h 05m
Multiple Airlines
Thu 7/506:35
BFS
-
JFK
1 stop14h 20m
Multiple Airlines
Deal found 27/4£579
Tue 12/518:20
JFK
-
BFS
1 stop10h 35m
Multiple Airlines
Mon 18/521:00
BFS
-
JFK
1 stop23h 55m
Multiple Airlines
Deal found 24/4£580

Find flight deals from USA to Belfast Intl

Keep the following information in mind while searching for USA to Belfast Intl flight deals. Data was last updated 29 April 2026.

Round-trip from

£440

One-way from

£241

Popular in

December

Cheapest in

November

Average price

£387
24/9-22/10
  • 24/9-22/10
  • 3 total stops
  • 33h 00m total
  • USA to Belfast
Search Deals
13/9
  • 13/9
  • 3 total stops
  • 38h 50m total
  • USA to Belfast
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from USA to Belfast Intl 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 29 April 2026.
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

Cheapest return flight

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 24/9

23:00-21:00

2 stops17h 00m

Belfast Intl

Thu 22/10

10:15-21:15

1 stop16h 00m

£440

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 13/10

18:20-20:55

1 stop21h 35m

Belfast Intl

Mon 19/10

20:55-15:55

1 stop24h 00m

£503

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Wed 16/9

17:30-23:10

3 stops24h 40m

Belfast Intl

Wed 23/9

16:55-21:00

2 stops33h 05m

£570

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Sun 10/5

23:00-18:25

1 stop14h 25m

Belfast Intl

Mon 18/5

14:40-20:55

2 stops35h 15m

£578

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 12/5

18:20-09:55

1 stop10h 35m

Belfast Intl

Mon 18/5

21:00-15:55

1 stop23h 55m

£580

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Sun 10/5

23:00-18:25

1 stop14h 25m

Belfast Intl

Fri 15/5

11:25-16:50

2 stops34h 25m

£581

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Tue 13/10

20:25-16:20

2 stops14h 55m

Belfast Intl

Mon 19/10

09:10-15:30

2 stops35h 20m

£608

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 9/6

18:20-09:55

1 stop10h 35m

Belfast Intl

Tue 16/6

20:55-15:55

1 stop24h 00m

£612

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 12/5

18:20-09:55

1 stop10h 35m

Belfast Intl

Fri 15/5

21:10-15:55

1 stop23h 45m

£631
Fastest return journey

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 1/6

18:20-09:55

1 stop10h 35m

Belfast Intl

Tue 9/6

06:15-15:55

1 stop14h 40m

£632

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from USA to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Intl Airport

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

Currently, November is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £340). Flying from USA to Belfast Intl Airport in June is currently the most expensive (average of £464). 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 Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The most popular route from USA to Belfast Intl Airport is New York John F Kennedy Intl - Belfast Intl. You may also consider Newark - Belfast Intl or New York LaGuardia - Belfast Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from USA to Belfast Intl 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 Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £340). Flying from USA to Belfast Intl Airport in June is currently the most expensive (average of £464). 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

Travelling to a place near Belfast Intl Airport?

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

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

Millions of users choose and trust Cheapflights to book the best flight deals from USA to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from USA to Belfast Intl, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from USA to Belfast Intl 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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