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Cheap flights from the United States to Belfast from £193

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BHD
13 Sep — 20 Sep1
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 14 August 2026.

Sun 4/1020:30 -
2 stops19h 30m
Tue 20/1020:15 -
3 stops31h 10m
Deal found 13/8£434
Mon 14/920:30 -
2 stops19h 10m
Wed 30/916:20 -
3 stops35h 05m
Deal found 10/8£440
Sat 26/918:20 -
1 stop32h 25m
Wed 30/914:35 -
1 stop30h 20m
Deal found 11/8£457
Mon 14/920:25 -
2 stops19h 15m
Wed 30/920:10 -
3 stops28h 05m
Deal found 10/8£465
Sun 27/923:10 -
2 stops16h 50m
Wed 30/916:20 -
3 stops35h 05m
Deal found 11/8£476
Thu 1/1018:20 -
1 stop20h 00m
Mon 5/1020:55 -
1 stop24h 00m
Deal found 10/8£483
Sat 24/1020:25 -
2 stops17h 25m
Sat 31/1018:55 -
3 stops26h 55m
Deal found 9/8£485
Sun 27/920:25 -
2 stops19h 35m
Wed 30/920:10 -
3 stops28h 05m
Deal found 11/8£490
Sat 17/1018:20 -
1 stop14h 20m
Thu 22/1020:40 -
1 stop24h 15m
Deal found 9/8£490
Sun 4/1018:20 -
1 stop14h 20m
Tue 20/1014:20 -
3 stops37h 05m
Deal found 12/8£491
Sat 26/920:25 -
2 stops21h 15m
Wed 30/920:10 -
3 stops28h 05m
Deal found 10/8£507
Mon 12/1020:25 -
2 stops19h 15m
Mon 19/1009:10 -
2 stops35h 20m
Deal found 13/8£511

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 14 August 2026.

Round-trip from

£434

One-way from

£193

Popular in

August

Cheapest in

November

Average price

£970
4/10-20/10
  • 4/10-20/10
  • 5 total stops
  • 50h 40m total
  • USA to Belfast
Search Deals
21/9
  • 21/9
  • 2 total stops
  • 21h 40m total
  • USA to Belfast
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£84 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£31 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 14 August 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 New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sun 4/10

18:20-14:35

1 stop15h 15m

Belfast Intl

Tue 20/10

08:50-22:25

3 stops42h 35m

£437

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Mon 14/9

20:25-20:40

2 stops19h 15m

Belfast Intl

Wed 30/9

20:10-19:15

3 stops28h 05m

£465

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sun 27/9

18:20-20:15

1 stop20h 55m

Belfast Intl

Wed 30/9

14:35-15:55

1 stop30h 20m

£480

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Thu 1/10

18:20-19:20

1 stop20h 00m

Belfast Intl

Mon 5/10

20:55-15:55

1 stop24h 00m

£483

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sat 26/9

18:20-07:45

1 stop32h 25m

Belfast Intl

Wed 30/9

21:35-15:55

1 stop23h 20m

£485

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sat 12/9

18:20-07:45

1 stop32h 25m

Belfast Intl

Fri 18/9

21:10-15:55

1 stop23h 45m

£497

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Thu 15/10

18:20-19:20

1 stop20h 00m

Belfast Intl

Tue 20/10

08:20-15:55

1 stop12h 35m

£503

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Fri 25/9

18:20-09:55

1 stop10h 35m

Belfast Intl

Fri 2/10

21:10-15:55

1 stop23h 45m

£503

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Sat 26/9

20:25-22:40

2 stops21h 15m

Belfast Intl

Wed 30/9

20:10-19:15

3 stops28h 05m

£507

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Mon 12/10

20:25-20:40

2 stops19h 15m

Belfast Intl

Mon 19/10

09:10-15:30

2 stops35h 20m

£511

Flights are sorted by cheapest return flights first.

Deals found on 9/8

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, January is the cheapest month in which you can book a flight from USA to Belfast (average of £481). Flying from USA to Belfast in June is currently the most expensive (average of £1,152). 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 10h 45m. Fly via British Airways, KLM, or Delta to get the fastest option. USA and Belfast are separated by a distance of 2981 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 Newark - Belfast Intl, New York John F Kennedy Intl - Belfast Intl or New York LaGuardia - 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, January is the cheapest month in which you can book a flight from USA to Belfast (average of £481). Flying from USA to Belfast in June is currently the most expensive (average of £1,152). 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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