In terms of precipitation, rainfall in USA ranges from 71.0 - 114.0 inches per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit USA when rainfall is around 71.0 mm.

If weather is an important factor for your trip to USA, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 - New York John F Kennedy Intl, Belfast Intl - Newark and Belfast Intl - Miami.

How far in advance should I book a flight from Belfast Intl Airport to USA?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 36 days in advance, which can save you up to 122% on flights from Belfast Intl Airport to USA compared to booking the week you need them. Waiting 36 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £430. For sooner than that we have options available in the next 3 days from £1,148.

What is the cheapest month to fly from Belfast Intl Airport to USA?

May can be a great time to fly to USA from Belfast Intl Airport with a flight ticket averaging about £475. Cheapflights users have found deals in the month of May for as cheap as £380. The most expensive prices can be found in the month of July.

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.

£261+ Cheap Flights from Belfast Intl Airport to the United States

Cheap flight deals from Belfast Intl to USA

Round-trip from	£379
One-way from	£261
Popular in	July
Cheapest in	May
Average price	£495

6/10-13/10
2 total stops
56h 30m total
Belfast to USA

Search Deals

15/9
2 total stops
49h 25m total
Belfast to USA

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (£17 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Belfast Intl to USA

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 22 agosto 2025.

seg 6/1020:55BFS - MCO

1 stop26h 30mMultiple Airlines

seg 13/1020:30MCO - BFS

1 stop30h 00mMultiple Airlines

Deal found 22/8£379

sex 19/921:05BFS - MIA

1 stop22h 15mMultiple Airlines

dom 21/917:10MIA - BFS

1 stop33h 30mMultiple Airlines

Deal found 21/8£391

seg 8/1206:30BFS - JFK

1 stop14h 25mMultiple Airlines

seg 15/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£400

qui 2/1006:10BFS - MCO

1 stop17h 15mMultiple Airlines

sex 10/1020:30MCO - BFS

1 stop31h 55mMultiple Airlines

Deal found 20/8£413

dom 5/1007:15BFS - JFK

1 stop15h 00mMultiple Airlines

dom 12/1019:00JFK - BFS

1 stop10h 30mMultiple Airlines

Deal found 21/8£415

qua 24/906:10BFS - JFK

1 stop14h 45mMultiple Airlines

seg 29/918:20JFK - BFS

1 stop32h 10mMultiple Airlines

Deal found 20/8£418

qui 9/1021:10BFS - JFK

1 stop23h 45mMultiple Airlines

dom 19/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 22/8£426

sáb 4/1012:35BFS - EWR

2 stops29h 40mMultiple Airlines

sáb 11/1018:50EWR - BFS

2 stops19h 15mMultiple Airlines

Deal found 19/8£428

qua 26/1106:30BFS - JFK

1 stop14h 25mMultiple Airlines

qua 3/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£436

sex 28/1106:30BFS - JFK

1 stop14h 25mMultiple Airlines

ter 2/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£440

qua 26/1106:30BFS - JFK

1 stop14h 25mMultiple Airlines

ter 2/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£441

qua 26/1106:30BFS - BOS

2 stops16h 20mMultiple Airlines

sáb 29/1119:50BOS - BFS

2 stops19h 25mMultiple Airlines

Deal found 21/8£443

Best flights from Belfast Intl to USA
Discover carefully curated flight deals from Belfast Intl to USA that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 agosto 2025.

seg 6/1020:55BFS - MCO

1 stop26h 30mMultiple Airlines

seg 13/1020:30MCO - BFS

1 stop30h 00mMultiple Airlines

Deal found 22/8£379

sex 19/921:05BFS - MIA

1 stop22h 15mMultiple Airlines

dom 21/917:10MIA - BFS

1 stop33h 30mMultiple Airlines

Deal found 21/8£391

seg 8/1206:30BFS - JFK

1 stop14h 25mMultiple Airlines

seg 15/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£400

qui 2/1006:10BFS - MCO

1 stop17h 15mMultiple Airlines

sex 10/1020:30MCO - BFS

1 stop31h 55mMultiple Airlines

Deal found 20/8£413

dom 5/1007:15BFS - JFK

1 stop15h 00mMultiple Airlines

dom 12/1019:00JFK - BFS

1 stop10h 30mMultiple Airlines

Deal found 21/8£415

qua 24/906:10BFS - JFK

1 stop14h 45mMultiple Airlines

seg 29/918:20JFK - BFS

1 stop32h 10mMultiple Airlines

Deal found 20/8£418

qui 9/1021:10BFS - JFK

1 stop23h 45mMultiple Airlines

dom 19/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 22/8£426

qua 26/1107:10BFS - JFK

2 stops20h 20mMultiple Airlines

qua 3/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£426

sáb 4/1012:35BFS - EWR

2 stops29h 40mMultiple Airlines

sáb 11/1018:50EWR - BFS

2 stops19h 15mMultiple Airlines

Deal found 19/8£428

sex 28/1106:30BFS - JFK

1 stop14h 25mMultiple Airlines

ter 2/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£440

qua 26/1106:30BFS - JFK

1 stop14h 25mMultiple Airlines

ter 2/1218:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 21/8£441

qua 26/1106:30BFS - BOS

2 stops16h 20mMultiple Airlines

sáb 29/1119:50BOS - BFS

2 stops19h 25mMultiple Airlines

Deal found 21/8£443

Last-minute flights from Belfast Intl to USA
Discover last-minute flight deals from Belfast Intl to USA. Data last updated 22 agosto 2025 and is based on user searches.

seg 25/806:10BFS - MIA

1 stop13h 10mMultiple Airlines

seg 1/917:15MIA - BFS

1 stop33h 15mMultiple Airlines

Deal found 21/8£658

qui 28/821:10BFS - JFK

1 stop23h 45mMultiple Airlines

ter 16/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 21/8£537

qui 28/807:30BFS - EWR

1 stop18h 30mMultiple Airlines

ter 16/917:35EWR - BFS

2 stops12h 45mMultiple Airlines

Deal found 21/8£609

sex 29/810:55BFS - EWR

1 stop16h 35mMultiple Airlines

ter 16/917:35EWR - BFS

2 stops11h 05mMultiple Airlines

Deal found 21/8£528

sex 29/810:55BFS - JFK

1 stop16h 20mMultiple Airlines

seg 15/900:15JFK - BFS

2 stops25h 35mMultiple Airlines

Deal found 21/8£568

sex 29/806:05BFS - MCO

1 stop17h 20mMultiple Airlines

sex 12/913:13MCO - BFS

3 stops19h 17mMultiple Airlines

Deal found 20/8£569

seg 1/921:35BFS - BOS

2 stops21h 05mMultiple Airlines

sex 12/919:25BOS - BFS

1 stop11h 25mMultiple Airlines

Deal found 20/8£979

ter 2/908:15BFS - BOS

2 stops34h 33mMultiple Airlines

sex 12/907:15BOS - BFS

1 stop11h 15mMultiple Airlines

Deal found 20/8£963

sex 19/921:05BFS - MIA

1 stop22h 15mMultiple Airlines

dom 21/917:10MIA - BFS

1 stop33h 30mMultiple Airlines

Deal found 21/8£391

sex 19/906:05BFS - JFK

1 stop14h 50mMultiple Airlines

sex 26/918:20JFK - BFS

1 stop23h 00mMultiple Airlines

Deal found 20/8£487

qua 24/906:10BFS - JFK

1 stop14h 45mMultiple Airlines

seg 29/918:20JFK - BFS

1 stop32h 10mMultiple Airlines

Deal found 20/8£418

qua 24/921:50BFS - EWR

2 stops22h 10mMultiple Airlines

seg 29/917:00EWR - BFS

2 stops22h 55mMultiple Airlines

Deal found 20/8£547

One-way flights from Belfast Intl to USA
Search for one-way flight options from Belfast Intl to USA. Find affordable one-way fares based on user searches. Data last updated 22 agosto 2025.

seg 15/922:00BFS - MCO

2 stops49h 25mMultiple Airlines

Deal found 20/8£261

qui 18/908:10BFS - JFK

2 stops19h 05mMultiple Airlines

Deal found 20/8£266

sáb 13/912:35BFS - JFK

1 stop14h 40mMultiple Airlines

Deal found 21/8£269

qui 18/921:10BFS - LGA

2 stops43h 51mMultiple Airlines

Deal found 21/8£269

dom 5/1021:00BFS - EWR

3 stops47h 20mMultiple Airlines

Deal found 21/8£271

qui 18/921:10BFS - EWR

2 stops40h 55mMultiple Airlines

Deal found 22/8£272

dom 7/907:15BFS - JFK

2 stops43h 45mMultiple Airlines

Deal found 21/8£292

sex 5/906:05BFS - JFK

2 stops33h 24mMultiple Airlines

Deal found 21/8£318

qua 3/907:25BFS - BOS

2 stops35h 23mMultiple Airlines

Deal found 20/8£449

sex 29/821:40BFS - BOS

2 stops39h 55mMultiple Airlines

Deal found 20/8£507

dom 31/823:30BFS - BOS

2 stops39h 09mMultiple Airlines

Deal found 20/8£527

seg 1/906:45BFS - BOS

2 stops31h 54mMultiple Airlines

Deal found 20/8£533

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastOrlando

BFS - MCO

BFSMCO

Belfast Intl

seg 6/10

20:55-18:25

1 stop26h 30m

Orlando

seg 13/10

20:30-07:30

1 stop30h 00m

£379

BelfastMiami

BFS - MIA

BFSMIA

Belfast Intl

sex 19/9

21:05-14:20

1 stop22h 15m

Miami

dom 21/9

17:10-07:40

1 stop33h 30m

£391

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

seg 8/12

06:30-15:55

1 stop14h 25m

New York John F Kennedy Intl

seg 15/12

18:05-10:05

1 stop11h 00m

£400

BelfastOrlando

BFS - MCO

BFSMCO

Belfast Intl

qui 2/10

06:10-18:25

1 stop17h 15m

Orlando

sex 10/10

20:30-09:25

1 stop31h 55m

£413

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

dom 5/10

07:15-17:15

1 stop15h 00m

New York John F Kennedy Intl

dom 12/10

19:00-10:30

1 stop10h 30m

£415

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

qua 24/9

06:10-15:55

1 stop14h 45m

New York John F Kennedy Intl

seg 29/9

18:20-07:30

1 stop32h 10m

£418

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

qui 9/10

21:10-15:55

1 stop23h 45m

New York John F Kennedy Intl

dom 19/10

18:20-09:55

1 stop10h 35m

£426

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

qua 26/11

07:10-22:30

2 stops20h 20m

New York John F Kennedy Intl

qua 3/12

18:05-10:05

1 stop11h 00m

£426

BelfastNewark

BFS - EWR

BFSEWR

Belfast Intl

sáb 4/10

12:35-13:15

2 stops29h 40m

Newark

sáb 11/10

18:50-19:05

2 stops19h 15m

£428

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

sex 28/11

06:30-15:55

1 stop14h 25m

New York John F Kennedy Intl

ter 2/12

18:05-10:05

1 stop11h 00m

£440

Flights are sorted by cheapest return flights first.

Deals found on 20/8

Showing 1-10 of 39 results

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, January is the cheapest month in which you can book a flight from Belfast Intl Airport to USA (average of £575). Flying from Belfast Intl Airport to USA in July is currently the most expensive (average of £811). 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?

When flying from Belfast Intl Airport to USA, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing USA

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

7.8

Good

1,388 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,388 reviews

KLM

7.8

Good

1,388 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Finnair

7.6

Good

1,320 reviews

KLM

7.8

Good

1,388 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

American Airlines

7.2

Good

10,000 reviews

KLM

7.8

Good

1,388 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,228 reviews

KLM

7.8

Good

1,388 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

British Airways

6.7

Okay

7,292 reviews

KLM

7.8

Good

1,388 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

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 - New York John F Kennedy Intl, Belfast Intl - Newark and Belfast Intl - Miami.
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, January is the cheapest month in which you can book a flight from Belfast Intl Airport to USA (average of £575). Flying from Belfast Intl Airport to USA in July is currently the most expensive (average of £811). 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

Top 3 airlines flying from Belfast Intl to USA

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£367	Average£558	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£416	Average£588	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Aer Lingus	Cheapest£598	Average£720	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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.

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

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

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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.

Cheap flights from Belfast Intl Airport to the United States from £261

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.

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 22 agosto 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Belfast Intl to USA

Cheapest flights from Belfast Intl to USAExplore 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 22 agosto 2025.

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 22 agosto 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast Intl Airport to the United States that are best for you.

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.

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?

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 22 agosto 2025.

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 22 agosto 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.

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?

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

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

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

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

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.

Top 3 airlines flying from Belfast Intl to USA

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?

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

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

Can Cheapflights notify me if prices for flights from Belfast Intl to USA become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 22 agosto 2025.