£218 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 15/4. 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 return prices found by our users on KAYAK in the last 72 hours
New York
New York1 stop£337
Los Angeles
Los Angeles2 stops£566
Miami
Miami3 stops£586
San Francisco
San Francisco2 stops£499
Boston
Boston2 stops£402
Las Vegas
Las Vegas1 stop£1,675
Tampa
Tampa3 stops£668
Atlanta
Atlanta2 stops£724
Dallas
Dallas3 stops£804
Seattle
Seattle2 stops£877
Nashville
Nashville2 stops£907
Austin
Austin3 stops£842
New York
New York1 stop£337
Los Angeles
Los Angeles2 stops£566
Miami
Miami3 stops£586
San Francisco
San Francisco2 stops£499
Boston
Boston2 stops£402
Las Vegas
Las Vegas1 stop£1,675
Tampa
Tampa3 stops£668
Atlanta
Atlanta2 stops£724
Dallas
Dallas3 stops£804
Seattle
Seattle2 stops£877
Nashville
Nashville2 stops£907
Austin
Austin3 stops£842

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 return 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 return flight deals from Belfast Intl to the United States

Tue, 17 Mar - Sun, 22 Mar
Multiple Airlines Logo
14:15 - 16:55
BFS
-
JFK
30h 40m
1 stop
Multiple Airlines Logo
19:05 - 10:05
JFK
-
BFS
11h 00m
1 stop
£337Multiple Airlines
Wed, 18 Mar - Sat, 21 Mar
Multiple Airlines Logo
06:30 - 19:25
BFS
-
EWR
16h 55m
2 stops
Multiple Airlines Logo
20:35 - 16:10
EWR
-
BFS
15h 35m
2 stops
£349Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
06:30 - 19:40
BFS
-
MCO
17h 10m
1 stop
Multiple Airlines Logo
21:55 - 08:55
MCO
-
BFS
31h 00m
1 stop
£359Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
06:30 - 18:50
BFS
-
BOS
16h 20m
2 stops
Multiple Airlines Logo
12:35 - 17:55
BOS
-
BFS
25h 20m
2 stops
£402Multiple Airlines
Fri, 1 May - Tue, 5 May
Multiple Airlines Logo
21:10 - 15:55
BFS
-
JFK
23h 45m
1 stop
Multiple Airlines Logo
18:20 - 20:30
JFK
-
BFS
21h 10m
1 stop
£412Multiple Airlines
Fri, 13 Mar - Fri, 20 Mar
Multiple Airlines Logo
06:30 - 16:55
BFS
-
JFK
14h 25m
1 stop
Multiple Airlines Logo
19:05 - 10:20
JFK
-
BFS
11h 15m
1 stop
£414Multiple Airlines
Tue, 17 Mar - Sun, 22 Mar
Multiple Airlines Logo
08:35 - 19:00
BFS
-
JFK
14h 25m
2 stops
Multiple Airlines Logo
20:25 - 20:10
JFK
-
BFS
19h 45m
2 stops
£443Multiple Airlines
Tue, 17 Mar - Sun, 22 Mar
Multiple Airlines Logo
08:35 - 19:25
BFS
-
EWR
14h 50m
2 stops
Multiple Airlines Logo
20:35 - 20:10
EWR
-
BFS
19h 35m
2 stops
£443Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
20:50 - 19:40
BFS
-
MCO
26h 50m
1 stop
Multiple Airlines Logo
09:30 - 10:05
MCO
-
BFS
20h 35m
2 stops
£451Multiple Airlines
Wed, 11 Mar - Wed, 18 Mar
Multiple Airlines Logo
20:50 - 19:40
BFS
-
MCO
26h 50m
1 stop
Multiple Airlines Logo
09:30 - 10:05
MCO
-
BFS
20h 35m
2 stops
£456Multiple 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 £395 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is £546 and £518 respectively.

Good to know - Cheap tickets from Belfast Intl Airport to United States

Low seasonNovember
Cheapest flight£218
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (16% more expensive on average)
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 travellers 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 return 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 5 airlines 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.
7.7
KLMOverall score based on 1443 reviews
7.3Food
8.4Crew
7.1Entertainment
7.8Boarding
7.6Comfort
Airline reviews

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

4.0 OkayShereen, Dec 2025
Read more KLM reviews

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Couldn’t get boarding pass in SLC even with help from a redcoat, so had to find a desk in AMS to get boarding pass. Technical problems so not sure why. Very inconvenient. The KLM app is not as user friendly as most apps. Also had to wait almost an hour on the tarmac for a fuel truck, which caused us to miss a connecting bus in LUX.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

We were upgraded to Business Class. So comfortable with great service and food options

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

I think we deserve more than 25% refund for losing first class seats when having to reschedule flight due to weather.

The flight was completely full. Crew was not happy. Everyone was rude and brusque. Travelling with an arm in a cast and seating in the first row of economy cabin (in front of the separation) I needed help retrieving my tray for the meal. A staff member literally threw the tray on my lap, without helping to take out the tray. Boarding was messy, with 300 people waiting in an encloses space with low ceiling. I will try to avoid AA next time I have a long flight.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

One of the best flight experiences I've have had in along time. Would fly with them again.

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

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.

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.

Fine, charter flights. Plane full, and staff nice and friendly. No option for free food or drink. Entertainment through paid app.

The 737-8 is too small for the length of flight especially if there are any delays

The flight was delayed over 2 hours, we should off left the plane2 late passengers as it’s not fair on everyone who’s followed the rules.

Dreamliner. Yes great if maintained. I didn't see anyones screen work consistently during either of our flights. Worse was their ability to not only dump you out of premium but separate couples and seat someone's carer at the opposite end of the aircraft. This poor gentleman had no hand so his partner who assists him, being seated at the other end of the aircraft, well that really showed us all what Tui think :( It was fairly dire all in all, they advertise all the perks of the dreamliner only in reality you don't have the features and they change the windows and colours to suit their constant sales pitches. Ironically they were so low on stock for the return flight that all their sales pitches were a waste of time! Their contract only favours them and 'operational changes' well they cover every excuse and Tui use it. Surprisingly we haven't reinstalled the Tui app or booked with them since. It's a shame as I rated them highly during the pandemic.

One flight attendant not wearing a mask over nose, 50% of passengers not either, and no effort to correct. Boarding was very late with no information - lots of standing around waiting.

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

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