$309 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 3/11. 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$523
Los Angeles
Los Angeles2 stops$735
Las Vegas
Las Vegas2 stops$880
Miami
Miami1 stop$673
San Francisco
San Francisco3 stops$739
Boston
Boston3 stops$991
Washington, D.C.
Baltimore2 stops$1,045
Fort Lauderdale
Fort Lauderdale2 stops$873
New York
New York1 stop$523
Los Angeles
Los Angeles2 stops$735
Las Vegas
Las Vegas2 stops$880
Miami
Miami1 stop$673
San Francisco
San Francisco3 stops$739
Boston
Boston3 stops$991
Washington, D.C.
Baltimore2 stops$1,045
Fort Lauderdale
Fort Lauderdale2 stops$873

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, Mar 16 - Fri, Mar 20
Multiple Airlines Logo
2:15 pm - 4:55 pmBFS-JFK
30h 40m1 stop
Multiple Airlines Logo
7:05 pm - 10:20 amJFK-BFS
11h 15m1 stop
$523Multiple Airlines
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Sun, Dec 7 - Wed, Dec 10
Multiple Airlines Logo
8:45 pm - 3:55 pmBFS-JFK
24h 10m1 stop
Multiple Airlines Logo
6:05 pm - 10:05 amJFK-BFS
11h 00m1 stop
$607Multiple Airlines
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Sun, Dec 7 - Tue, Dec 9
Multiple Airlines Logo
11:05 pm - 5:50 pmBFS-JFK
47h 45m3 stops
Multiple Airlines Logo
12:30 am - 8:20 amJFK-BFS
26h 50m2 stops
$626Multiple Airlines
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Mon, Mar 16 - Fri, Mar 20
Multiple Airlines Logo
7:50 am - 8:05 pmBFS-JFK
40h 15m3 stops
Multiple Airlines Logo
7:05 pm - 10:20 amJFK-BFS
11h 15m1 stop
$638Multiple Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 10
Multiple Airlines Logo
8:15 am - 10:30 pmBFS-JFK
19h 15m2 stops
Multiple Airlines Logo
6:05 pm - 1:45 pmJFK-BFS
14h 40m1 stop
$652Multiple Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 9
Multiple Airlines Logo
8:15 am - 10:30 pmBFS-JFK
19h 15m2 stops
Multiple Airlines Logo
12:30 am - 8:20 amJFK-BFS
26h 50m2 stops
$653Multiple Airlines
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Thu, Nov 27 - Wed, Dec 10
Multiple Airlines Logo
9:05 am - 6:00 pmBFS-JFK
13h 55m2 stops
Multiple Airlines Logo
7:25 pm - 4:10 pmJFK-BFS
15h 45m2 stops
$665Multiple Airlines
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Thu, Nov 27 - Wed, Dec 10
Multiple Airlines Logo
9:05 am - 6:25 pmBFS-EWR
14h 20m2 stops
Multiple Airlines Logo
7:35 pm - 4:10 pmEWR-BFS
15h 35m2 stops
$665Multiple Airlines
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Wed, Mar 11 - Tue, Mar 24
Multiple Airlines Logo
5:30 pm - 6:55 pmBFS-MIA
29h 25m1 stop
Multiple Airlines Logo
11:55 am - 10:05 amMIA-BFS
18h 10m2 stops
$673Multiple Airlines
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Mon, Mar 16 - Fri, Mar 20
Multiple Airlines Logo
6:30 am - 4:55 pmBFS-JFK
14h 25m1 stop
Multiple Airlines Logo
7:05 pm - 6:55 pmJFK-BFS
19h 50m2 stops
$679Multiple Airlines
Find Deal
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 December and July, when the average cost of round-trip tickets is $756 and $745 respectively.

Good to know

Low seasonNovember
Cheapest flight$309
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 18% 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.
6.7
British AirwaysOverall score based on 7515 reviews
6.3Food
6.9Boarding
6.7Comfort
7.6Crew
6.4Entertainment
Airline reviews

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

10.0 ExcellentAnonymous, Nov 2025LHR - JFK
Read more British Airways reviews

Great on board entertainment Tasty food Cattle class obviously crammed but not as bad as shorter hall flights

Logan gate staff was unhelpful. Arrived early, come to find out the airbus scheduled was reassigned and I did not have a seat. The desk agent spoke to his supervisor who instructed him to give me a boarding pass to get up to gate area, he was polite. At the gate the fellow was sitting to the side with two other BA staff . I asked him if he could help me, his answer was” we are on a break, we are closed” then turned his back. I am almost 70, drove 4 1/2 hours to Boston and had been looking forward to this trip for 5 months. I have worked in service many times in my life and this is not how it is done. I eventually (1/2 hr) before boarding was able to get a seat. The rest of the flight experience was unremarkable.

The boarding process was chaotic at LHR and the seat was not as comfortable as other airlines....

Great flight. One unique individual assisting in business class who should have not been there. Need more generic meals, not British centric.

There might be more food options for people who can't eat so much starch/sugar/bread/rice. Meat, cheese, walnuts/pecans for snack, maybe jerky or other kinds of meat-based snacks would be better than bread and rice and sweets. I had an extra chardonnay, which was fine. The entertainment was great.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

Crew service was poor and very little difference between premium economy and economy. Disappointed.

My bags never made it on the flight and I now have to wait for them to arrive hopefully tomorrow. You can’t even track your bags in the app to see where they are since they didn’t arrive. You have to file a claim and then wait for them to inform you when you will receive your bag. We were already delayed for an hour due to baggage so I don’t understand how my bag didn’t make the flight.

One of the worst experience given the middle seat even asked for the change no one honored,boarded at the end and overall one of the worst experience

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

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

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