Cheap flights from Belfast Intl Airport to the United States from £325
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
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 13 June 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 13 June 2025.
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 13 June 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
Fly to
Route
Depart
Return
Price
BelfastMiami
BFS - MIA
BFSMIA
Belfast Intl
Mon 29/9
06:10-14:20
1 stop13h 10m
Miami
Mon 29/9
17:15-07:30
1 stop33h 15m
BelfastNew York
BFS - JFK
BFSJFK
Belfast Intl
Tue 16/9
08:15-15:55
1 stop12h 40m
New York John F Kennedy Intl
Tue 23/9
18:20-09:55
1 stop10h 35m
BelfastNewark
BFS - EWR
BFSEWR
Belfast Intl
Sun 21/9
07:00-19:10
2 stops41h 10m
Newark
Sun 28/9
20:25-23:10
2 stops21h 45m
BelfastBoston
BFS - BOS
BFSBOS
Belfast Intl
Mon 1/9
12:25-15:35
3 stops32h 10m
Boston Logan Intl
Tue 9/9
17:40-15:00
2 stops16h 20m
BelfastNew York
BFS - LGA
BFSLGA
Belfast Intl
Mon 15/9
16:20-21:30
3 stops34h 10m
New York LaGuardia
Mon 22/9
05:55-20:25
2 stops33h 30m
BelfastOrlando
BFS - MCO
BFSMCO
Belfast Intl
Thu 10/7
21:10-18:25
1 stop26h 15m
Orlando
Wed 23/7
20:30-20:35
1 stop19h 05m
BelfastSanta Ana
BFS - SNA
BFSSNA
Belfast Intl
Mon 1/9
10:35-15:46
2 stops37h 11m
Santa Ana J. Wayne/Orange Cnty
Mon 8/9
09:15-23:00
2 stops29h 45m
BelfastChicago
BFS - ORD
BFSORD
Belfast Intl
Tue 15/7
05:55-22:05
2 stops22h 10m
Chicago O'Hare Intl
Tue 22/7
19:25-15:00
2 stops13h 35m
BelfastNew Windsor
BFS - SWF
BFSSWF
Belfast Intl
Sun 20/7
07:00-18:05
2 stops16h 05m
New Windsor Stewart
Sat 26/7
19:15-23:25
2 stops23h 10m
BelfastMiami
BFS - MIA
BFSMIA
Belfast Intl
Mon 23/6
08:10-14:20
3 stops35h 10m
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?
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?
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 13 June 2025.
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.
Rainfall in USA by month
Plan your trip to USA by taking into account the average rainfall totals by month.
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.
Temperature in USA by month
Plan your trip to USA by taking into account the average temperature totals by month.
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).
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.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Belfast Intl to USA
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Belfast Intl to USA
Discover the top 2 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 13 June 2025.
Fly with Cheapflights
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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.