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Cheap flights from the United States to Belfast Intl Airport from £188

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
11 Jan — 18 Jan1
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 12 December 2025.

Mon 29/1218:05JFK - BFS
1 stop21h 05mMultiple Airlines
Wed 7/120:55BFS - JFK
2 stops54h 35mMultiple Airlines
Deal found 11/12£670
Thu 11/1215:55JFK - BFS
2 stops22h 40mMultiple Airlines
Thu 18/1221:25BFS - JFK
2 stops30h 05mMultiple Airlines
Deal found 10/12£727
Sun 28/1218:05JFK - BFS
1 stop22h 50mMultiple Airlines
Wed 7/115:45BFS - JFK
2 stops35h 45mMultiple Airlines
Deal found 11/12£763
Thu 11/1222:00EWR - BFS
2 stops19h 05mMultiple Airlines
Thu 18/1216:50BFS - EWR
2 stops27h 40mMultiple Airlines
Deal found 10/12£765
Tue 30/1218:05JFK - BFS
1 stop21h 05mMultiple Airlines
Tue 6/120:55BFS - JFK
1 stop24h 00mMultiple Airlines
Deal found 12/12£787
Sat 27/1222:05JFK - BFS
2 stops28h 55mMultiple Airlines
Thu 8/118:55BFS - JFK
1 stop26h 00mMultiple Airlines
Deal found 10/12£793
Wed 24/1200:30JFK - BFS
2 stops34h 35mMultiple Airlines
Thu 8/121:00BFS - JFK
1 stop23h 55mMultiple Airlines
Deal found 10/12£801
Thu 25/1223:00EWR - BFS
1 stop18h 05mMultiple Airlines
Thu 8/121:00BFS - EWR
2 stops31h 27mMultiple Airlines
Deal found 10/12£806
Fri 26/1218:05JFK - BFS
1 stop12h 50mMultiple Airlines
Thu 8/121:00BFS - JFK
2 stops30h 30mMultiple Airlines
Deal found 10/12£811
Sat 27/1223:00EWR - BFS
1 stop15h 55mMultiple Airlines
Thu 8/121:00BFS - EWR
2 stops31h 27mMultiple Airlines
Deal found 10/12£843
Fri 26/1223:55EWR - BFS
3 stops17h 05mMultiple Airlines
Sun 4/123:05BFS - EWR
3 stops37h 55mMultiple Airlines
Deal found 11/12£1,143
Fri 26/1211:30LGA - BFS
3 stops21h 20mMultiple Airlines
Sun 4/123:05BFS - LGA
3 stops24h 57mMultiple Airlines
Deal found 11/12£1,177

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 12 December 2025.

Round-trip from

£393

One-way from

£188

Popular in

April

Cheapest in

November
11/1-27/1
  • 11/1-27/1
  • 2 total stops
  • 38h 00m total
  • USA to Belfast
Search Deals
4/2
  • 4/2
  • 3 total stops
  • 41h 35m total
  • USA to Belfast
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£111 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
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 12 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

USA

Fly to

Belfast Intl

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 26/1

18:05-10:05

1 stop11h 00m

Belfast Intl

Mon 2/2

20:55-15:55

1 stop24h 00m

£366

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 11/1

18:05-10:05

1 stop11h 00m

Belfast Intl

Tue 27/1

06:30-15:55

1 stop14h 25m

£397

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 7/1

19:50-15:30

2 stops14h 40m

Belfast Intl

Wed 14/1

08:20-17:50

2 stops14h 30m

£400

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 25/1

18:05-10:05

1 stop11h 00m

Belfast Intl

Sun 1/2

20:45-15:55

1 stop24h 10m

£409

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Sun 25/1

17:45-14:55

2 stops16h 10m

Belfast Intl

Sun 1/2

06:00-16:15

2 stops15h 15m

£452

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Mon 26/1

17:45-20:15

2 stops21h 30m

Belfast Intl

Mon 2/2

19:20-16:15

2 stops25h 55m

£457

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Sat 10/1

01:35-10:05

2 stops27h 30m

Belfast Intl

Tue 27/1

05:45-15:30

3 stops38h 45m

£472

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Mon 26/1

19:40-20:10

2 stops19h 30m

Belfast Intl

Mon 2/2

06:30-18:40

2 stops17h 10m

£486

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 25/1

19:50-18:55

2 stops18h 05m

Belfast Intl

Sun 1/2

05:45-20:10

3 stops19h 25m

£503

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Mon 26/1

17:30-20:15

2 stops21h 45m

Belfast Intl

Mon 2/2

06:00-14:35

3 stops37h 35m

£521

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 51 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 £399). Flying from USA to Belfast Intl Airport in November is currently the most expensive (average of £518). 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 Seattle/Tacoma Intl - Belfast Intl or Los Angeles - 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 £399). Flying from USA to Belfast Intl Airport in November is currently the most expensive (average of £518). 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.
John F Kennedy Intl to Belfast Intl flights
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San Francisco to Belfast City flights
Atlanta to Belfast Intl flights
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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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