$288 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 12/15. 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

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Best United States Flight Deals from Belfast Intl

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop$459
Los Angeles
Los Angeles1 stop$593
Las Vegas
Las Vegas2 stops$672
Miami
Miami1 stop$694
San Francisco
San Francisco2 stops$1,136
Boston
Boston2 stops$610
Washington, D.C.
Washington, D.C.2 stops$768
Seattle
Seattle3 stops$929
Atlanta
Atlanta3 stops$1,135
New York
New York1 stop$459
Los Angeles
Los Angeles1 stop$593
Las Vegas
Las Vegas2 stops$672
Miami
Miami1 stop$694
San Francisco
San Francisco2 stops$1,136
Boston
Boston2 stops$610
Washington, D.C.
Washington, D.C.2 stops$768
Seattle
Seattle3 stops$929
Atlanta
Atlanta3 stops$1,135

Cheap Flights from Belfast Intl to the United States

 
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

Wed, Sep 17 - Sun, Sep 21
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9:05 pm - 3:55 pmBFS-JFK
23h 50m1 stop
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6:20 pm - 9:55 amJFK-BFS
10h 35m1 stop
$459
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Thu, Nov 13 - Tue, Nov 18
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6:30 am - 3:55 pmBFS-JFK
14h 25m1 stop
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6:05 pm - 10:05 amJFK-BFS
11h 00m1 stop
$471
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Wed, Sep 17 - Sun, Sep 21
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9:05 pm - 10:30 pmBFS-JFK
30h 25m2 stops
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6:20 pm - 6:50 pmJFK-BFS
19h 30m1 stop
$506
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Wed, Oct 15 - Wed, Oct 15
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8:15 am - 6:25 pmBFS-MCO
15h 10m1 stop
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8:30 pm - 7:50 amMCO-BFS
30h 20m1 stop
$511
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Thu, Nov 13 - Tue, Nov 18
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9:05 am - 5:20 pmBFS-JFK
13h 15m1 stop
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9:10 pm - 4:00 pmJFK-BFS
13h 50m2 stops
$526
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Mon, Nov 10 - Mon, Nov 24
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6:00 am - 6:40 pmBFS-MCO
17h 40m1 stop
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8:55 pm - 9:10 amMCO-BFS
31h 15m1 stop
$540
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Mon, Nov 10 - Mon, Nov 24
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6:40 am - 6:40 pmBFS-MCO
17h 00m1 stop
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8:55 pm - 4:15 pmMCO-BFS
14h 20m1 stop
$551
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Wed, Dec 3 - Sat, Dec 13
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8:50 pm - 6:40 pmBFS-MCO
26h 50m1 stop
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8:55 pm - 8:00 amMCO-BFS
30h 05m1 stop
$566
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Wed, Sep 17 - Sun, Sep 21
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6:50 am - 10:30 pmBFS-JFK
20h 40m3 stops
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11:10 pm - 9:30 pmJFK-BFS
17h 20m2 stops
$572
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Mon, Sep 1 - Fri, May 1
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8:55 pm - 3:55 pmBFS-JFK
24h 00m1 stop
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6:20 pm - 10:00 amJFK-BFS
10h 40m1 stop
$586
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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 $551 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $901 and $733 respectively.

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Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$288
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 12% 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.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the morning, when round-trip flights cost $557 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the evening, which is peak travel time and where the average cost of a ticket is $566.

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.
6.6
British AirwaysOverall score based on 7109 reviews
6.4Entertainment
7.6Crew
6.7Comfort
6.3Food
6.9Boarding
Airline reviews

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

8.0 ExcellentDavid, Jul 2025LHR - JFK
Read more British Airways reviews

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

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)

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