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 - Orlando, Belfast Intl - Dallas/Fort Worth and Belfast Intl - New York John F Kennedy Intl.

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 £437. For sooner than that we have options available in the next 3 days from £924.

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 £470. Cheapflights users have found deals in the month of May for as cheap as £377. 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.

£257+ Cheap Flights from Belfast Intl Airport to the United States

Cheap flight deals from Belfast Intl to USA

Round-trip from	£345
One-way from	£257
Popular in	July
Cheapest in	May
Average price	£409

12/1-16/1
2 total stops
35h 00m total
Belfast to USA

Search Deals

1/11
2 total stops
27h 35m total
Belfast to USA

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (£19 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 September 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 15 September 2025.

Thu 27/1106:30BFS - MCO

1 stop17h 10mMultiple Airlines

Sat 6/1220:55MCO - BFS

1 stop30h 05mMultiple Airlines

Deal found 15/9£347

Wed 1/1021:05BFS - JFK

1 stop23h 50mMultiple Airlines

Mon 6/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 15/9£372

Fri 10/1006:05BFS - JFK

1 stop14h 50mMultiple Airlines

Mon 13/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 14/9£377

Wed 29/1018:25BFS - JFK

1 stop26h 30mMultiple Airlines

Wed 5/1118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 14/9£402

Mon 3/1106:00BFS - BOS

1 stop15h 00mMultiple Airlines

Mon 10/1120:00BOS - BFS

1 stop16h 00mMultiple Airlines

Deal found 15/9£402

Thu 2/1021:15BFS - JFK

1 stop23h 40mMultiple Airlines

Wed 15/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 15/9£416

Tue 28/1020:55BFS - JFK

1 stop23h 55mMultiple Airlines

Tue 4/1118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 13/9£427

Mon 6/1020:55BFS - JFK

1 stop24h 00mMultiple Airlines

Mon 13/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 13/9£434

Mon 10/1106:40BFS - MCO

1 stop17h 00mMultiple Airlines

Mon 17/1111:24MCO - BFS

2 stops39h 56mMultiple Airlines

Deal found 14/9£438

Wed 5/1120:50BFS - MCO

1 stop26h 50mMultiple Airlines

Wed 19/1107:48MCO - BFS

2 stops21h 17mMultiple Airlines

Deal found 14/9£443

Wed 29/1014:15BFS - EWR

2 stops28h 20mMultiple Airlines

Wed 5/1117:40EWR - BFS

2 stops25h 15mMultiple Airlines

Deal found 14/9£445

Fri 10/1008:35BFS - EWR

2 stops15h 35mMultiple Airlines

Mon 13/1020:25EWR - BFS

2 stops21h 05mMultiple Airlines

Deal found 14/9£453

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 15 September 2025.

Mon 12/120:55BFS - JFK

1 stop24h 00mMultiple Airlines

Fri 16/118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 13/9£345

Thu 27/1106:30BFS - MCO

1 stop17h 10mMultiple Airlines

Sat 6/1220:55MCO - BFS

1 stop30h 05mMultiple Airlines

Deal found 15/9£347

Wed 1/1021:05BFS - JFK

1 stop23h 50mMultiple Airlines

Mon 6/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 15/9£372

Fri 10/1006:05BFS - JFK

1 stop14h 50mMultiple Airlines

Mon 13/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 14/9£377

Mon 9/206:30BFS - MCO

1 stop17h 10mMultiple Airlines

Mon 16/220:55MCO - BFS

1 stop19h 15mMultiple Airlines

Deal found 14/9£394

Wed 29/1018:25BFS - JFK

1 stop26h 30mMultiple Airlines

Wed 5/1118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 14/9£402

Mon 3/1106:00BFS - BOS

1 stop15h 00mMultiple Airlines

Mon 10/1120:00BOS - BFS

1 stop16h 00mMultiple Airlines

Deal found 15/9£402

Thu 2/1021:15BFS - JFK

1 stop23h 40mMultiple Airlines

Wed 15/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 15/9£416

Tue 28/1020:55BFS - JFK

1 stop23h 55mMultiple Airlines

Tue 4/1118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 13/9£427

Thu 5/310:15BFS - MCO

1 stop13h 25mMultiple Airlines

Thu 12/321:55MCO - BFS

1 stop29h 45mMultiple Airlines

Deal found 13/9£431

Mon 6/1020:55BFS - JFK

1 stop24h 00mMultiple Airlines

Mon 13/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 13/9£434

Mon 10/1106:40BFS - MCO

1 stop17h 00mMultiple Airlines

Mon 17/1111:24MCO - BFS

2 stops39h 56mMultiple Airlines

Deal found 14/9£438

Last-minute flights from Belfast Intl to USA
Discover last-minute flight deals from Belfast Intl to USA. Data last updated 15 September 2025 and is based on user searches.

Mon 22/908:20BFS - BOS

1 stop10h 10mMultiple Airlines

Tue 30/915:00BOS - BFS

2 stops18h 35mMultiple Airlines

Deal found 13/9£476

Wed 1/1021:05BFS - JFK

1 stop23h 50mMultiple Airlines

Mon 6/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 15/9£372

Thu 2/1021:15BFS - JFK

1 stop23h 40mMultiple Airlines

Wed 15/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 15/9£416

Thu 2/1016:00BFS - EWR

3 stops26h 15mMultiple Airlines

Wed 15/1018:50EWR - BFS

2 stops15h 40mMultiple Airlines

Deal found 15/9£480

Mon 6/1020:55BFS - JFK

1 stop24h 00mMultiple Airlines

Mon 13/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 13/9£434

Fri 10/1006:05BFS - JFK

1 stop14h 50mMultiple Airlines

Mon 13/1018:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 14/9£377

Fri 10/1008:35BFS - EWR

2 stops15h 35mMultiple Airlines

Mon 13/1020:25EWR - BFS

2 stops21h 05mMultiple Airlines

Deal found 14/9£453

Tue 28/1020:55BFS - JFK

1 stop23h 55mMultiple Airlines

Tue 4/1118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 13/9£427

Tue 28/1005:45BFS - MIA

3 stops45h 05mMultiple Airlines

Tue 4/1116:35MIA - BFS

3 stops21h 15mMultiple Airlines

Deal found 12/9£485

Wed 29/1018:25BFS - JFK

1 stop26h 30mMultiple Airlines

Wed 5/1118:05JFK - BFS

1 stop11h 00mMultiple Airlines

Deal found 14/9£402

Wed 29/1014:15BFS - EWR

2 stops28h 20mMultiple Airlines

Wed 5/1117:40EWR - BFS

2 stops25h 15mMultiple Airlines

Deal found 14/9£445

Thu 30/1021:20BFS - BOS

3 stops46h 15mMultiple Airlines

Thu 6/1111:35BOS - BFS

2 stops30h 00mMultiple Airlines

Deal found 15/9£479

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 15 September 2025.

Sat 1/1116:00BFS - BOS

2 stops27h 35mMultiple Airlines

Deal found 14/9£257

Sun 9/1123:05BFS - EWR

3 stops45h 25mMultiple Airlines

Deal found 13/9£262

Wed 22/1006:10BFS - JFK

3 stops42h 55mMultiple Airlines

Deal found 13/9£262

Wed 22/1009:35BFS - EWR

3 stops34h 24mMultiple Airlines

Deal found 13/9£263

Fri 31/1017:30BFS - EWR

1 stop31h 30mMultiple Airlines

Deal found 13/9£269

Sat 1/1123:10BFS - JFK

1 stop21h 45mMultiple Airlines

Deal found 13/9£277

Wed 29/1006:00BFS - JFK

1 stop14h 50mMultiple Airlines

Deal found 13/9£278

Sat 1/1123:10BFS - EWR

3 stops52h 00mMultiple Airlines

Deal found 13/9£279

Thu 30/1021:20BFS - EWR

2 stops29h 50mMultiple Airlines

Deal found 13/9£283

Mon 20/1010:55BFS - EWR

3 stops57h 25mMultiple Airlines

Deal found 13/9£284

Wed 29/1006:15BFS - EWR

3 stops44h 55mMultiple Airlines

Deal found 13/9£285

Tue 21/1006:45BFS - EWR

3 stops37h 35mMultiple Airlines

Deal found 13/9£286

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

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Mon 12/1

20:55-15:55

1 stop24h 00m

New York John F Kennedy Intl

Fri 16/1

18:05-10:05

1 stop11h 00m

£345

BelfastOrlando

BFS - MCO

BFSMCO

Belfast Intl

Thu 27/11

06:30-18:40

1 stop17h 10m

Orlando

Sat 6/12

20:55-08:00

1 stop30h 05m

£347

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Wed 1/10

21:05-15:55

1 stop23h 50m

New York John F Kennedy Intl

Mon 6/10

18:20-09:55

1 stop10h 35m

£372

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Fri 10/10

06:05-15:55

1 stop14h 50m

New York John F Kennedy Intl

Mon 13/10

18:20-09:55

1 stop10h 35m

£377

BelfastOrlando

BFS - MCO

BFSMCO

Belfast Intl

Mon 9/2

06:30-18:40

1 stop17h 10m

Orlando

Mon 16/2

20:55-21:10

1 stop19h 15m

£394

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Wed 29/10

18:25-16:55

1 stop26h 30m

New York John F Kennedy Intl

Wed 5/11

18:05-10:05

1 stop11h 00m

£402

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Mon 3/11

06:00-16:00

1 stop15h 00m

Boston Logan Intl

Mon 10/11

20:00-17:00

1 stop16h 00m

£402

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Thu 2/10

21:15-15:55

1 stop23h 40m

New York John F Kennedy Intl

Wed 15/10

18:20-09:55

1 stop10h 35m

£416

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Tue 28/10

20:55-16:50

1 stop23h 55m

New York John F Kennedy Intl

Tue 4/11

18:05-10:05

1 stop11h 00m

£427

BelfastOrlando

BFS - MCO

BFSMCO

Belfast Intl

Thu 5/3

10:15-18:40

1 stop13h 25m

Orlando

Thu 12/3

21:55-07:40

1 stop29h 45m

£431

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 48 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, September is the cheapest month in which you can book a flight from Belfast Intl Airport to USA (average of £573). 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

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Finnair

7.6

Good

1,323 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

American Airlines

7.2

Good

10,000 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Aer Lingus

7.2

Good

1,270 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

British Airways

6.7

Okay

7,361 reviews

KLM

7.8

Good

1,385 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 - Orlando, Belfast Intl - Dallas/Fort Worth and Belfast Intl - New York John F Kennedy Intl.
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, September is the cheapest month in which you can book a flight from Belfast Intl Airport to USA (average of £573). 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£364	Average£567	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£412	Average£582	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Aer Lingus	Cheapest£573	Average£735	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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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 £257

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 1/11. 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 15 September 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 15 September 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 15 September 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 15 September 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 15 September 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?

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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 15 September 2025.