$242 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 5/21. 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.
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Flights Deals

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$562
Los Angeles
Los Angeles1 stop$730
Las Vegas
Las Vegas2 stops$1,006
Miami
Miami1 stop$615
San Francisco
San Francisco3 stops$1,143
Boston
Boston2 stops$750
Washington, D.C.
Baltimore2 stops$876
Denver
Denver2 stops$1,016
New York
New York1 stop$562
Los Angeles
Los Angeles1 stop$730
Las Vegas
Las Vegas2 stops$1,006
Miami
Miami1 stop$615
San Francisco
San Francisco3 stops$1,143
Boston
Boston2 stops$750
Washington, D.C.
Baltimore2 stops$876
Denver
Denver2 stops$1,016

Cheap Flight Deals from Belfast Intl to the United States (BFS-US0)

 
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.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Belfast Intl to the United States.
Discover the best prices for you by selecting your travel dates on KAYAK.
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8:10 am - 5:15 pmBFS-JFK
14h 05m1 stop
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7:00 pm - 11:20 amJFK-BFS
11h 20m1 stop
Mon, Jun 9 - Mon, Jun 16
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8:35 am - 5:15 pmBFS-JFK
13h 40m1 stop
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7:00 pm - 3:30 pmJFK-BFS
15h 30m1 stop
Sat, Jun 14 - Sat, Jun 21
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8:55 pm - 3:55 pmBFS-JFK
24h 00m1 stop
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6:20 pm - 8:05 pmJFK-BFS
20h 45m1 stop
Mon, Sep 8 - Fri, Sep 12
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8:35 am - 4:59 pmBFS-JFK
13h 24m1 stop
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7:30 pm - 10:55 amJFK-BFS
10h 25m1 stop
Sat, May 31 - Fri, Jun 13
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6:10 am - 2:20 pmBFS-MIA
13h 10m1 stop
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5:15 pm - 7:30 amMIA-BFS
33h 15m1 stop
Mon, Jun 16 - Mon, Jun 30
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8:10 am - 7:05 pmBFS-JFK
15h 55m2 stops
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7:30 pm - 11:20 amJFK-BFS
10h 50m1 stop
Mon, Jun 9 - Mon, Jun 16
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10:35 am - 10:15 pmBFS-JFK
16h 40m2 stops
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6:55 am - 10:30 pmJFK-BFS
34h 35m2 stops
Mon, Jun 9 - Mon, Jun 16
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6:55 am - 10:00 pmBFS-JFK
20h 05m2 stops
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6:20 pm - 9:25 amJFK-BFS
10h 05m1 stop
Sat, Jun 14 - Sat, Jun 21
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6:55 am - 10:00 pmBFS-JFK
20h 05m2 stops
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10:45 am - 10:30 pmJFK-BFS
30h 45m2 stops
Sat, Jun 14 - Sat, Jun 21
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6:45 am - 6:05 pmBFS-SWF
16h 20m2 stops
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7:15 pm - 1:50 pmSWF-BFS
13h 35m2 stops
Mon, Sep 8 - Fri, Sep 12
Useful Info

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 September, when tickets cost $556 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $1,060 and $734 respectively.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$242
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 15% 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.

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 6842 reviews
6.3Food
6.8Boarding
7.6Crew
6.4Entertainment
6.7Comfort
Airline reviews

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

6.0 GoodLorrie, Apr 2025LHR - PDX
Read more British Airways reviews

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

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

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