Cheap flights from the United States to Belfast from £145
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 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from USA to Belfast
Keep the following information in mind while searching for USA to Belfast flight deals. Data was last updated 13 June 2025.
Find flight deals from USA to Belfast
Cheapest flights from USA to BelfastExplore 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 13 June 2025.
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 13 June 2025.
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 13 June 2025.
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
New YorkBelfast
JFK - BFS
JFKBFS
New York John F Kennedy Intl
Tue 16/9
18:20-09:55
1 stop10h 35m
Belfast Intl
Mon 22/9
20:55-15:55
1 stop24h 00m
New YorkBelfast
JFK - BHD
JFKBHD
New York John F Kennedy Intl
Sun 3/8
00:50-16:55
1 stop11h 05m
Belfast City
Wed 20/8
17:25-22:50
1 stop10h 25m
New YorkBelfast
JFK - BHD
JFKBHD
New York John F Kennedy Intl
Sun 3/8
00:50-21:15
1 stop15h 25m
Belfast City
Wed 20/8
17:25-22:50
1 stop10h 25m
BostonBelfast
BOS - BHD
BOSBHD
Boston Logan Intl
Wed 10/9
20:15-16:55
1 stop15h 40m
Belfast City
Thu 18/9
06:30-13:40
1 stop12h 10m
BostonBelfast
BOS - BHD
BOSBHD
Boston Logan Intl
Mon 8/9
20:50-16:55
2 stops15h 05m
Belfast City
Tue 16/9
06:30-18:25
1 stop16h 55m
New YorkBelfast
JFK - BHD
JFKBHD
New York John F Kennedy Intl
Tue 16/9
18:20-13:45
1 stop14h 25m
Belfast City
Mon 22/9
07:05-15:55
1 stop13h 50m
BostonBelfast
BOS - BHD
BOSBHD
Boston Logan Intl
Wed 27/8
19:45-11:55
1 stop11h 10m
Belfast City
Wed 3/9
16:05-22:45
1 stop11h 40m
BostonBelfast
BOS - BHD
BOSBHD
Boston Logan Intl
Wed 10/9
20:50-16:55
2 stops15h 05m
Belfast City
Thu 18/9
06:30-16:11
2 stops14h 41m
New YorkBelfast
JFK - BHD
JFKBHD
New York John F Kennedy Intl
Mon 15/9
00:50-21:15
1 stop15h 25m
Belfast City
Mon 22/9
06:30-22:50
1 stop21h 20m
BostonBelfast
BOS - BHD
BOSBHD
Boston Logan Intl
Sun 12/10
21:55-13:05
1 stop10h 10m
Belfast City
Sun 19/10
13:00-22:49
2 stops14h 49m
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.
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 £67). Flying from USA to Belfast in July is currently the most expensive (average of £90). 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 US to BFS?
Find hourly flight availability from USA to Belfast. 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 USA to Belfast, 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 Belfast by month
Plan your trip to Belfast by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.
Temperature in Belfast by month
Plan your trip to Belfast by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Belfast, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).
Reviews of airlines servicing Belfast
Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 13 June 2025.
Get a feel of what it's like to fly with Delta, KLM and Virgin Atlantic from USA to Belfast by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Kim,May 2025
PIH - SLC
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Kim,May 2025
PIH - SLC
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Kim,May 2025
PIH - SLC
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Kim,May 2025
PIH - SLC
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Kim,May 2025
PIH - SLC
Crew
Overall
Food
Comfort
Entertainment
Boarding
Reviews
Kim,May 2025
PIH - SLC
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.
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Alternative routes for USA to Belfast
See prices for flight routes from nearby airports that may be better suited for you.
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 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.