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Cheap flights from the United States to Belfast from £171

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 24/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
20 Nov — 27 Nov1
1 adult
1 adult, Economy

Cheap flight deals from USA to Belfast

Keep the following information in mind while searching for USA to Belfast flight deals. Data was last updated 21 October 2025.

Round-trip from

£381

One-way from

£171

Popular in

July

Cheapest in

November

Average price

£511
3/12-10/12
  • 3/12-10/12
  • 2 total stops
  • 31h 10m total
  • USA to Belfast
Search Deals
24/11
  • 24/11
  • 1 total stop
  • 10h 30m 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

Find 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 21 October 2025.

Wed 3/1218:05JFK - BFS
1 stop18h 50mMultiple Airlines
Wed 10/1208:35BFS - JFK
1 stop12h 20mMultiple Airlines
Deal found 19/10£381
Thu 4/1223:55EWR - BFS
2 stops17h 25mMultiple Airlines
Thu 11/1206:30BFS - EWR
2 stops20h 40mMultiple Airlines
Deal found 20/10£400
Tue 18/1118:25JFK - BHD
1 stop11h 05mAmerican Airlines
Tue 25/1110:00BHD - JFK
1 stop15h 05mAmerican Airlines
Deal found 19/10£403
Tue 18/1118:05JFK - BFS
1 stop11h 00mMultiple Airlines
Tue 25/1108:35BFS - JFK
1 stop12h 20mMultiple Airlines
Deal found 19/10£416
Tue 18/1117:45JFK - BHD
1 stop18h 05mVirgin Atlantic
Tue 25/1106:30BHD - JFK
2 stops18h 29mVirgin Atlantic
Deal found 19/10£422
Wed 3/1200:30JFK - BFS
2 stops26h 50mMultiple Airlines
Thu 11/1221:00BFS - JFK
2 stops30h 30mMultiple Airlines
Deal found 20/10£428
Tue 30/1210:15JFK - BHD
1 stop20h 15mFinnair
Wed 7/111:25BHD - JFK
1 stop13h 40mFinnair
Deal found 19/10£429
Fri 7/1118:25JFK - BHD
1 stop14h 50mAmerican Airlines
Wed 12/1112:25BHD - JFK
1 stop12h 40mAmerican Airlines
Deal found 18/10£447
Tue 30/1208:05JFK - BHD
1 stop21h 25mBritish Airways
Wed 7/119:25BHD - JFK
2 stops28h 40mBritish Airways
Deal found 19/10£455
Fri 14/1117:45JFK - BHD
1 stop22h 15mKLM
Fri 21/1106:30BHD - JFK
1 stop14h 15mKLM
Deal found 19/10£455
Sun 16/1117:10BOS - BFS
2 stops16h 45mMultiple Airlines
Wed 19/1121:05BFS - BOS
2 stops26h 50mMultiple Airlines
Deal found 20/10£456
Fri 7/1118:05JFK - BFS
1 stop11h 00mMultiple Airlines
Wed 12/1106:30BFS - JFK
1 stop14h 25mMultiple Airlines
Deal found 18/10£465

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 21 October 2025.
Use the filters below to find and compare flights from the United States to Belfast that are best for you.

Fly from

USA

Fly to

Belfast

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Wed 3/12

18:05-17:55

1 stop18h 50m

Belfast Intl

Wed 10/12

08:35-15:55

1 stop12h 20m

£381

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 16/1

18:05-10:05

1 stop11h 00m

Belfast Intl

Sun 25/1

20:45-15:55

1 stop24h 10m

£386

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Thu 4/12

23:55-22:20

2 stops17h 25m

Belfast Intl

Thu 11/12

06:30-22:10

2 stops20h 40m

£400

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 18/11

18:25-10:30

1 stop11h 05m

Belfast City

Tue 25/11

10:00-20:05

1 stop15h 05m

£403

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Wed 11/3

20:10-10:15

1 stop10h 05m

Belfast City

Wed 18/3

09:15-17:00

1 stop11h 45m

£408

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 24/3

21:05-11:30

1 stop10h 25m

Belfast City

Mon 30/3

18:30-11:10

1 stop21h 40m

£411

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Tue 18/11

18:05-10:05

1 stop11h 00m

Belfast Intl

Tue 25/11

08:35-15:55

1 stop12h 20m

£416

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 18/11

17:45-16:50

1 stop18h 05m

Belfast City

Tue 25/11

06:30-19:59

2 stops18h 29m

£422

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Wed 3/12

00:30-08:20

2 stops26h 50m

Belfast Intl

Thu 11/12

21:00-22:30

2 stops30h 30m

£428

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 30/12

10:15-11:30

1 stop20h 15m

Belfast City

Wed 7/1

11:25-20:05

1 stop13h 40m

£429

Flights are sorted by cheapest return flights first.

Deals found on 20/10

Showing 1-10 of 60 results
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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, September is the cheapest month in which you can book a flight from USA to Belfast (average of £398). Flying from USA to Belfast in June is currently the most expensive (average of £482). 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.

What is the cheapest time of day to fly from US to BFS?

Find hourly flight availability from USA to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 October 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 34% on flights from USA to Belfast by exploring options for tickets at midday.

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 10h 05m. Fly via American Airlines, British Airways, or KLM to get the fastest option. USA and Belfast are separated by a distance of 3167 mi. This flight may include one or multiple stops.

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

    When deciding which route to take from USA to Belfast consider Los Angeles - Belfast Intl, Los Angeles - Belfast City or Seattle/Tacoma 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, September is the cheapest month in which you can book a flight from USA to Belfast (average of £398). Flying from USA to Belfast in June is currently the most expensive (average of £482). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for USA to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Denver to Belfast City flights
State College to Belfast City flights
Miami to Belfast City flights

Fly with Cheapflights

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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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