$307 Find Cheap Flights from Belfast Intl Airport to United States

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast Intl to the United States departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Belfast Intl to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$478
Los Angeles
Los Angeles2 stops$632
Las Vegas
Las Vegas2 stops$1,055
Miami
Miami2 stops$659
Boston
Boston2 stops$748
Washington, D.C.
Washington, D.C.3 stops$784
Seattle
Seattle2 stops$741
New York
New York1 stop$478
Los Angeles
Los Angeles2 stops$632
Las Vegas
Las Vegas2 stops$1,055
Miami
Miami2 stops$659
Boston
Boston2 stops$748
Washington, D.C.
Washington, D.C.3 stops$784
Seattle
Seattle2 stops$741

Book Cheap Belfast Intl to the United States Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Belfast Intl to the United States that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Belfast Intl to the United States

Mon, Feb 2 - Fri, Feb 6
Multiple Airlines Logo
2:15 pm - 3:55 pm
BFS
-
JFK
30h 40m1 stop
Multiple Airlines Logo
6:05 pm - 10:00 am
JFK
-
BFS
10h 55m1 stop
$478Multiple Airlines
Wed, Jan 21 - Sun, Jan 25
Multiple Airlines Logo
6:30 am - 3:55 pm
BFS
-
JFK
14h 25m1 stop
Multiple Airlines Logo
6:05 pm - 10:05 am
JFK
-
BFS
11h 00m1 stop
$483Multiple Airlines
Tue, Feb 17 - Tue, Feb 24
Multiple Airlines Logo
8:55 pm - 3:55 pm
BFS
-
JFK
24h 00m1 stop
Multiple Airlines Logo
6:05 pm - 5:55 pm
JFK
-
BFS
18h 50m1 stop
$494Multiple Airlines
Wed, Feb 4 - Sun, Feb 8
Multiple Airlines Logo
6:30 am - 3:55 pm
BFS
-
JFK
14h 25m1 stop
Multiple Airlines Logo
6:05 pm - 10:05 am
JFK
-
BFS
11h 00m1 stop
$533Multiple Airlines
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
8:45 pm - 3:55 pm
BFS
-
JFK
24h 10m1 stop
Multiple Airlines Logo
6:05 pm - 10:05 am
JFK
-
BFS
11h 00m1 stop
$534Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
8:35 am - 3:55 pm
BFS
-
JFK
12h 20m1 stop
Multiple Airlines Logo
6:05 pm - 10:05 am
JFK
-
BFS
11h 00m1 stop
$539Multiple Airlines
Mon, Feb 2 - Fri, Feb 6
Multiple Airlines Logo
9:15 pm - 3:55 pm
BFS
-
JFK
23h 40m2 stops
Multiple Airlines Logo
6:05 pm - 10:00 am
JFK
-
BFS
10h 55m1 stop
$541Multiple Airlines
Fri, Feb 20 - Wed, Mar 4
Multiple Airlines Logo
6:30 am - 3:55 pm
BFS
-
JFK
14h 25m1 stop
Multiple Airlines Logo
6:05 pm - 1:45 pm
JFK
-
BFS
14h 40m1 stop
$556Multiple Airlines
Wed, Jan 21 - Sun, Jan 25
Multiple Airlines Logo
6:30 am - 3:55 pm
BFS
-
JFK
14h 25m1 stop
Multiple Airlines Logo
6:05 pm - 12:50 pm
JFK
-
BFS
13h 45m2 stops
$562Multiple Airlines
Wed, Feb 4 - Sun, Feb 8
Multiple Airlines Logo
6:30 am - 6:00 pm
BFS
-
JFK
16h 30m2 stops
Multiple Airlines Logo
7:25 pm - 5:55 pm
JFK
-
BFS
17h 30m2 stops
$565Multiple Airlines
Booking Insights

KAYAK's insights & trends for Belfast Intl to the United States flights

Get data-powered insights and trends into flights from Belfast Intl to the United States to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast Intl Airport to the United States, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Belfast Intl Airport to the United States is May, when tickets cost $542 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $750 and $711 respectively.

Find deals

Good to know

Low seasonNovember
Cheapest flight$307
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Belfast Intl Airport to New York John F Kennedy Airport

FAQs - booking United States flights

  • How does KAYAK find such low prices on flights from Belfast Intl Airport to United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Belfast Intl Airport to United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast Intl Airport to United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast Intl Airport to United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Belfast Intl Airport to United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Belfast Intl Airport to United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Belfast Intl Airport to United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Belfast Intl Airport to United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Belfast Intl to the United States

 
Need help choosing which airline to fly with from Belfast Intl to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 7646 reviews
6.7Comfort
6.4Entertainment
6.9Boarding
6.4Food
7.6Crew
Airline reviews

Entertainment devices on A380 need to be fixed, the seats might do with updates.

8.0 ExcellentShree, Jan 2026
LHR - LAX
Read more British Airways reviews

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

I was in a bulkhead seat and my tray table wasn't level. Eating was difficult.

Audi visual not working for a whole group of seats in first class. How does a plane leave the main hub in such poor condition? How much that we can’t see so immediately is also compromised?

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

Everything you need to know for your flight from Belfast Intl to the United States

Information on your arrival and departure airports

Belfast Intl Airport (BFS)