Find flights
When to book
Airlines
FAQs

Cheap flights from Belfast Intl Airport to the United States from £265

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LAX
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Belfast Intl to USA

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to USA
Explore the most affordable flight options available from Belfast Intl to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 November 2025.

Thu 4/1220:05BFS - JFK
1 stop24h 50mMultiple Airlines
Tue 9/1218:05JFK - BFS
1 stop11h 00mMultiple Airlines
Deal found 6/11£422
Wed 12/1106:00BFS - JFK
1 stop14h 55mMultiple Airlines
Wed 19/1118:05JFK - BFS
1 stop16h 50mMultiple Airlines
Deal found 5/11£469
Wed 12/1106:30BFS - EWR
2 stops16h 55mMultiple Airlines
Wed 19/1119:35EWR - BFS
2 stops17h 45mMultiple Airlines
Deal found 5/11£483
Thu 4/1206:30BFS - EWR
2 stops16h 55mMultiple Airlines
Tue 9/1219:35EWR - BFS
2 stops19h 35mMultiple Airlines
Deal found 6/11£495
Sat 8/1123:10BFS - JFK
2 stops28h 20mMultiple Airlines
Mon 24/1119:25JFK - BFS
2 stops16h 35mMultiple Airlines
Deal found 6/11£546
Thu 6/1106:15BFS - JFK
2 stops21h 15mMultiple Airlines
Thu 13/1119:25JFK - BFS
2 stops20h 15mMultiple Airlines
Deal found 5/11£557
Tue 18/1105:45BFS - JFK
1 stop15h 10mMultiple Airlines
Fri 21/1113:55JFK - BFS
2 stops25h 55mMultiple Airlines
Deal found 5/11£591
Thu 6/1120:05BFS - EWR
3 stops29h 55mMultiple Airlines
Thu 13/1119:35EWR - BFS
2 stops20h 05mMultiple Airlines
Deal found 5/11£613
Fri 7/1106:30BFS - DEN
2 stops18h 35mMultiple Airlines
Mon 10/1115:40DEN - BFS
2 stops22h 30mMultiple Airlines
Deal found 5/11£729
Sat 20/1209:40BFS - LGA
2 stops14h 22mMultiple Airlines
Sat 27/1215:30LGA - BFS
2 stops23h 25mMultiple Airlines
Deal found 5/11£836
Wed 12/1106:30BFS - IAH
3 stops23h 29mMultiple Airlines
Tue 18/1105:14IAH - BFS
3 stops30h 41mMultiple Airlines
Deal found 5/11£868
Sat 20/1208:30BFS - EWR
3 stops33h 55mMultiple Airlines
Sat 27/1217:40EWR - BFS
3 stops23h 50mMultiple Airlines
Deal found 5/11£872

Cheap flight deals from Belfast Intl to USA

Keep the following information in mind while searching for Belfast Intl to USA flight deals. Data was last updated 7 November 2025.

Round-trip from

£422

One-way from

£265

Popular in

December

Cheapest in

May

Average price

£497
4/12-9/12
  • 4/12-9/12
  • 2 total stops
  • 35h 50m total
  • Belfast to USA
Search Deals
13/11
  • 13/11
  • 2 total stops
  • 35h 10m total
  • Belfast to USA
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to USA 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 7 November 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to the United States that are best for you.

Fly from

Belfast Intl

Fly to

USA

Route

Depart

Return

Price

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Thu 4/12

20:05-15:55

1 stop24h 50m

New York John F Kennedy Intl

Tue 9/12

18:05-10:05

1 stop11h 00m

£422

BelfastNewark

BFS - EWR

BFSEWR

Belfast Intl

Thu 4/12

06:30-18:25

2 stops16h 55m

Newark

Tue 9/12

19:35-20:10

2 stops19h 35m

£495

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Mon 16/2

06:30-15:55

1 stop14h 25m

New York John F Kennedy Intl

Fri 20/2

23:45-23:50

2 stops19h 05m

£512

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Fri 10/4

21:05-15:55

1 stop23h 50m

New York John F Kennedy Intl

Mon 13/4

18:20-09:55

1 stop10h 35m

£607

BelfastDallas

BFS - DFW

BFSDFW

Belfast Intl

Wed 7/1

07:15-22:49

3 stops45h 34m

Dallas/Fort Worth

Sun 11/1

11:06-13:50

2 stops20h 44m

£684

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

Wed 22/4

06:00-18:25

1 stop20h 25m

Seattle/Tacoma Intl

Mon 4/5

19:00-23:05

2 stops20h 05m

£693

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

Tue 21/4

20:55-11:35

1 stop22h 40m

Seattle/Tacoma Intl

Mon 4/5

15:45-23:05

2 stops23h 20m

£700

BelfastNew York

BFS - LGA

BFSLGA

Belfast Intl

Sat 20/12

09:40-19:02

2 stops14h 22m

New York LaGuardia

Sat 27/12

15:30-19:55

2 stops23h 25m

£836

BelfastNewark

BFS - EWR

BFSEWR

Belfast Intl

Sat 20/12

08:30-13:25

3 stops33h 55m

Newark

Sat 27/12

17:40-22:30

3 stops23h 50m

£872

BelfastDenver

BFS - DEN

BFSDEN

Belfast Intl

Wed 15/4

05:55-16:35

2 stops17h 40m

Denver Intl

Thu 30/4

16:40-22:25

2 stops22h 45m

£956

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from Belfast Intl to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Belfast Intl 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 Belfast Intl Airport to the United States

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

Currently, June is the cheapest month in which you can book a flight from Belfast Intl Airport to USA (average of £368). Flying from Belfast Intl Airport to USA in December is currently the most expensive (average of £448). 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 BFS to US?

Find hourly flight availability from Belfast Intl to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 November 2025.

It’s optimal to fly from Belfast Intl Airport to USA at midday. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 7 November 2025.
Read through reviews of airlines operating flights from Belfast Intl Airport to the United States, such as KLM, Finnair, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,405 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Finnair
7.6
Good
1,335 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
American Airlines
7.2
Good
11,040 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,365 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,500 reviews
KLM
7.7
Good
1,405 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.7

Boarding

7.8

Crew

8.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to USA. 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 Belfast Intl Airport to USA?

    The most popular flight routes from Belfast Intl Airport to USA are Belfast Intl - Denver Intl, Belfast Intl - New York John F Kennedy Intl and Belfast Intl - Houston Hobby.

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

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

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

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

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

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

    Currently, June is the cheapest month in which you can book a flight from Belfast Intl Airport to USA (average of £368). Flying from Belfast Intl Airport to USA in December is currently the most expensive (average of £448). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast Intl to USA

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Denver flights
Belfast Intl to John F Kennedy Intl flights
Belfast City to John F Kennedy Intl flights
Belfast City to Denver flights
Belfast Intl to Newark flights
Belfast City to LaGuardia flights
Belfast City to Newark flights
Belfast Intl to Hobby flights
Belfast City to Dallas/Fort Worth flights
Belfast Intl to Seattle flights
Belfast City to Seattle flights
Belfast Intl to Dallas/Fort Worth flights
Belfast City to Grand Rapids flights
Belfast City to Dulles Intl flights
Belfast City to George Bush Intcntl flights
Belfast Intl to Pearson Intl flights
Belfast Intl to Pierre Elliott Trudeau Intl flights
Belfast City to Pearson Intl flights
Belfast City to Colorado Springs flights
Belfast Intl to Providence flights
Belfast Intl to Oklahoma City flights
Belfast Intl to Baltimore flights
Belfast City to Wichita flights
Belfast Intl to Mexico City flights
Belfast City to Baltimore flights
Belfast Intl to Cancún flights
Belfast City to Reagan-National flights
Belfast Intl to Orlando flights
Belfast Intl to Vancouver Intl flights
Belfast City to Hartford flights
Belfast City to Vancouver Intl flights
Belfast Intl to Ontario flights
Belfast City to Mexico City flights
Belfast City to Flint flights
Belfast Intl to Miami flights

Top 3 airlines flying from Belfast Intl to USA

Discover the top 3 airlines that operate flights from Belfast Intl to USA. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£377Average£589FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£427Average£603FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£614Average£1,068FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Belfast Intl to USA, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Belfast Intl to USA.

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

Certainly. Search results for flights to USA from Belfast Intl 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 Belfast Intl to USA become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to USA from Belfast Intl today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.