$400 Find Cheap Flights from Belfast to the 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 to the United States departing on 5/3. 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 to the United States

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
New York
Newark2 stops$566
Los Angeles
Los Angeles2 stops$755
Las Vegas
Las Vegas3 stops$948
San Francisco
San Francisco1 stop$795
Boston
Boston3 stops$777
Fort Lauderdale
Fort Lauderdale2 stops$879
Seattle
Seattle3 stops$796
Houston
Houston3 stops$1,281
New York
Newark2 stops$566
Los Angeles
Los Angeles2 stops$755
Las Vegas
Las Vegas3 stops$948
San Francisco
San Francisco1 stop$795
Boston
Boston3 stops$777
Fort Lauderdale
Fort Lauderdale2 stops$879
Seattle
Seattle3 stops$796
Houston
Houston3 stops$1,281

Book Cheap Belfast 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 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 to the United States

Mon, Apr 20 - Mon, May 4
Multiple Airlines Logo
9:25 pm - 9:00 pm
BFS
-
EWR
52h 35m
2 stops
Multiple Airlines Logo
11:00 pm - 10:40 am
EWR
-
BFS
30h 40m
1 stop
$566Multiple Airlines
Thu, May 28 - Sun, Jun 7
Multiple Airlines Logo
9:25 pm - 6:25 pm
BFS
-
MCO
26h 00m
1 stop
Multiple Airlines Logo
5:05 pm - 6:25 pm
MCO
-
BFS
20h 20m
2 stops
$654Multiple Airlines
Wed, May 13 - Mon, May 18
Multiple Airlines Logo
8:15 am - 10:05 pm
BFS
-
JFK
18h 50m
2 stops
Multiple Airlines Logo
11:10 pm - 8:25 pm
JFK
-
BFS
16h 15m
2 stops
$655Multiple Airlines
Mon, Apr 20 - Mon, May 4
American Airlines Logo
9:40 am - 5:00 pm
BHD
-
JFK
12h 20m
1 stop
American Airlines Logo
8:55 pm - 12:55 pm
JFK
-
BHD
11h 00m
1 stop
$683American Airlines
Mon, Apr 20 - Mon, May 4
American Airlines Logo
11:35 am - 9:05 pm
BHD
-
JFK
14h 30m
1 stop
American Airlines Logo
6:20 pm - 12:55 pm
JFK
-
BHD
13h 35m
1 stop
$718American Airlines
Thu, Apr 30 - Mon, May 4
British Airways Logo
8:35 pm - 1:30 pm
BHD
-
JFK
21h 55m
1 stop
British Airways Logo
9:35 am - 7:35 am
JFK
-
BHD
17h 00m
1 stop
$722British Airways
Mon, Apr 20 - Mon, May 4
British Airways Logo
4:50 pm - 10:25 pm
BHD
-
JFK
10h 35m
1 stop
British Airways Logo
5:15 pm - 12:55 pm
JFK
-
BHD
14h 40m
2 stops
$724British Airways
Mon, May 4 - Wed, May 13
KLM Logo
9:50 am - 6:35 pm
BHD
-
LAS
16h 45m
1 stop
KLM Logo
8:25 pm - 9:20 am
LAS
-
BHD
28h 55m
1 stop
$1,054KLM
Mon, May 4 - Wed, May 13
Delta Logo
9:50 am - 8:17 pm
BHD
-
LAS
18h 27m
2 stops
Delta Logo
8:25 pm - 4:55 pm
LAS
-
BHD
12h 30m
1 stop
$1,063Delta
Fri, Sep 4 - Wed, Sep 9
KLM Logo
9:50 am - 6:35 pm
BHD
-
LAS
16h 45m
1 stop
KLM Logo
8:25 pm - 9:20 am
LAS
-
BHD
28h 55m
1 stop
$1,099KLM
Booking Insights

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

Get data-powered insights and trends into flights from Belfast 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 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 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 to the United States is May, when tickets cost $541 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of round-trip tickets is $769 and $758 respectively.

Good to know

Cheapest flight$400
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 to the 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 to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast to the 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 to the 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 to the 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 to the 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 to the 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 to the United States

 
Need help choosing which airline to fly with from Belfast 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 7813 reviews
7.6Crew
6.8Comfort
6.4Entertainment
6.4Food
6.9Boarding
Airline reviews

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

6.0 GoodAnonymous, Mar 2026
LHR - LAX
Read more British Airways reviews

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

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

Cabin class types available on flights to the United States

Cabin classes available on flights to the United States. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.