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Cheap flights from the United States to Belfast Intl Airport from £164

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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
9 Nov — 16 Nov1
1 adult
1 adult, Economy

Find 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 10 October 2025.

Wed 12/1118:05JFK - BFS
1 stop11h 00mMultiple Airlines
Wed 19/1106:30BFS - JFK
1 stop14h 25mMultiple Airlines
Deal found 10/10£402
Wed 12/1117:45EWR - BFS
2 stops17h 30mMultiple Airlines
Wed 19/1118:25BFS - EWR
3 stops32h 45mMultiple Airlines
Deal found 10/10£440
Fri 7/1117:45EWR - BFS
2 stops23h 15mMultiple Airlines
Sun 9/1123:05BFS - EWR
2 stops22h 10mMultiple Airlines
Deal found 10/10£451
Fri 7/1117:00JFK - BFS
2 stops17h 10mMultiple Airlines
Sun 9/1123:05BFS - JFK
2 stops25h 20mMultiple Airlines
Deal found 10/10£451
Sun 9/1110:15BOS - BFS
3 stops30h 00mMultiple Airlines
Sun 16/1105:45BFS - BOS
2 stops17h 50mMultiple Airlines
Deal found 10/10£451
Fri 14/1118:05BOS - BFS
3 stops23h 40mMultiple Airlines
Sun 16/1116:45BFS - BOS
2 stops26h 50mMultiple Airlines
Deal found 10/10£465
Tue 18/1117:30IAD - BFS
2 stops17h 30mMultiple Airlines
Sat 22/1112:45BFS - IAD
3 stops37h 15mMultiple Airlines
Deal found 10/10£472
Mon 27/1000:55EWR - BFS
2 stops34h 20mMultiple Airlines
Fri 31/1006:30BFS - EWR
2 stops30h 35mMultiple Airlines
Deal found 9/10£487
Sun 9/1118:05JFK - BFS
1 stop11h 00mMultiple Airlines
Sun 16/1120:45BFS - JFK
1 stop24h 10mMultiple Airlines
Deal found 10/10£490
Sun 23/1118:30EWR - BFS
2 stops19h 25mMultiple Airlines
Sun 30/1107:30BFS - EWR
3 stops35h 05mMultiple Airlines
Deal found 9/10£504
Mon 24/1110:30EWR - BFS
2 stops30h 10mMultiple Airlines
Mon 1/1208:40BFS - EWR
2 stops34h 15mMultiple Airlines
Deal found 10/10£511
Sat 8/1111:35BOS - BFS
2 stops22h 05mMultiple Airlines
Sat 15/1123:10BFS - BOS
3 stops44h 25mMultiple Airlines
Deal found 10/10£519

Cheap 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 10 October 2025.

Round-trip from

£351

One-way from

£164

Popular in

July

Cheapest in

November

Average price

£515
8/2-9/2
  • 8/2-9/2
  • 2 total stops
  • 35h 00m total
  • USA to Belfast
Search Deals
22/10
  • 22/10
  • 2 total stops
  • 35h 25m total
  • USA to Belfast
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£11 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 10 October 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

USA

Fly to

Belfast Intl

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Wed 12/11

18:05-10:05

1 stop11h 00m

Belfast Intl

Wed 19/11

06:30-15:55

1 stop14h 25m

£402

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Fri 7/11

17:45-22:00

2 stops23h 15m

Belfast Intl

Sun 9/11

23:05-16:15

2 stops22h 10m

£451

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 7/11

17:00-15:10

2 stops17h 10m

Belfast Intl

Sun 9/11

23:05-19:25

2 stops25h 20m

£451

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 9/11

10:15-21:15

3 stops30h 00m

Belfast Intl

Sun 16/11

05:45-18:35

2 stops17h 50m

£451

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 14/11

18:05-22:45

3 stops23h 40m

Belfast Intl

Sun 16/11

16:45-14:35

2 stops26h 50m

£465

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Fri 9/1

00:25-16:10

2 stops34h 45m

Belfast Intl

Sat 17/1

08:10-23:37

2 stops20h 27m

£470

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 18/11

17:30-16:00

2 stops17h 30m

Belfast Intl

Sat 22/11

12:45-21:00

3 stops37h 15m

£472

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Wed 12/11

17:45-16:15

2 stops17h 30m

Belfast Intl

Wed 19/11

06:30-22:00

2 stops20h 30m

£479

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Mon 27/10

00:55-15:15

2 stops34h 20m

Belfast Intl

Fri 31/10

06:30-09:05

2 stops30h 35m

£487

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 9/11

18:05-10:05

1 stop11h 00m

Belfast Intl

Sun 16/11

20:45-15:55

1 stop24h 10m

£490

Flights are sorted by cheapest return flights first.

Deals found on 9/10

Showing 1-10 of 37 results
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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, September is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £401). Flying from USA to Belfast Intl Airport in December is currently the most expensive (average of £504). 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 Los Angeles - Belfast Intl or Newark - 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, September is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £401). Flying from USA to Belfast Intl Airport in December is currently the most expensive (average of £504). 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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Alternative routes for USA to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

Cheapflights makes it easy to find USA to Belfast Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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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