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Find cheap flights from Belfast Intl Airport to United States from $337

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 6/8. 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
0 bags
sáb. 6/29
sáb. 7/6

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Best United States Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

New York
New York1 stop$602
Seattle
Seattle2 stops$2,299
Atlanta
Atlanta2 stops$1,263

Good to know

Low season

January

High season

July

Cheapest flight

$337
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Belfast Intl Airport to Los Angeles

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 to United States from Belfast Intl Airport 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 to United States with an airline and back to Belfast Intl Airport 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 to United States from Belfast Intl Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to the United States

  • Morning departure is around 30% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 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.
7.3
American AirlinesOverall score based on 14284 reviews
6.6Food
7.1Entertainment
7.6Boarding
7.2Comfort
8.0Crew
Airline reviews

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

8.0 ExcellentAnonymous, May 2024PIT - PHL
Read more about American Airlines reviews

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

We were redirected to a near by city due to weather and had to stay in the aircraft before flying to the original destination's airport. The whole delay added 3+ hours and were were not offered any snacks or water.

I wish that we wouldn't have to go through TSA again on connecting flights.

As no headphones/ ear pieces in back of seat for entertainment system, would have been to been offered rather than asking & waiting a long time. I know we are in economy but cost of ticket was high.

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

The boarding to Gatwick was a breeze but the boarding from Gatwick was a nightmare. The onboard service to Gatwick had a lot to be desired but the onboard sevice from Gatwick was amazing ! Very nice,friendly and funny ! Would I recommend BA to anyone.? ! Yes I would!

Really quick check in and security at Heathrow Terminal 5. Staff on board were lovely and very friendly. Could have provided a few more drinks on the flight but they were available at the back of the plane.

It was a flight operated by Aer Linus for BA and the plane and crew were very good but the food selection was average.

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Poor technical details on this plane. 1) There was no WiFi on an 8 hour long-haul flight. So no work could be done. That's below the standard expected for airlines these days. 2) The power outlet at my seat was busted and not working. 3) The headphone jack was loose and I had to keep adjusting my headphones to get good reception, or when it slipped out. - The flight was delayed to due mechanics. Sometimes this can't be avoided, I understand, and it's a big inconvenience to arrive that much later when traveling across time zones (then arriving at 4am from the prior time zone). - Also unique to this flight, the northern lights were visible on the right side of the aircraft, but I only found out after we landed (b/c again no wifi). I understand there are considerations about people being out of their seats to look, but I feel extremely disappointed and resentful that I wasn't told so that I could have a chance to look at this probably once-in-a-lifetime cosmic event from a view in the sky. - Flight crew was otherwise friendly and helpful.

I would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Book cheap flights from Belfast to the United States

Recent round-trip flight deals

7/2mar.
1 stop
16h 00mBFS-JFK
7/7dom.
1 stop
11h 55mJFK-BFS
$602
10/10jue.
2 stops
17h 00mBFS-EWR
10/17jue.
1 stop
14h 40mEWR-BFS
$628
6/9dom.
1 stop
20h 45mBFS-JFK
6/21vie.
1 stop
23h 30mJFK-BFS
$629
6/18mar.
1 stop
14h 20mBFS-MCO
7/2mar.
1 stop
10h 55mMCO-BFS
$646
6/18mar.
1 stop
14h 20mBFS-MCO
7/2mar.
2 stops
19h 25mMCO-BFS
$653
6/9dom.
1 stop
20h 45mBFS-JFK
6/20jue.
1 stop
26h 35mJFK-BFS
$661
10/1mar.
1 stop
15h 05mBFS-MCO
11/14jue.
1 stop
20h 35mMCO-BFS
$663
6/19mié.
1 stop
13h 20mBFS-MCO
7/3mié.
1 stop
16h 15mMCO-BFS
$676
7/2mar.
1 stop
14h 25mBFS-JFK
7/7dom.
2 stops
13h 35mJFK-BFS
$685
7/1lun.
2 stops
25h 50mBFS-JFK
7/7dom.
2 stops
19h 20mJFK-BFS
$691

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Recent one-way flight deals

6/8sáb.
1 stop
26h 25mBFS-LAX
$337
7/20sáb.
1 stop
33h 00mBFS-EWR
$359
7/1lun.
2 stops
37h 40mBFS-JFK
$374
6/16dom.
3 stops
31h 03mBFS-IAH
$380
6/16dom.
2 stops
27h 47mBFS-IAH
$381
8/5lun.
3 stops
41h 32mBFS-BOS
$387
7/20sáb.
2 stops
31h 45mBFS-EWR
$398
8/24sáb.
2 stops
20h 07mBFS-ORD
$417
7/21dom.
2 stops
20h 20mBFS-EWR
$431
7/8lun.
1 stop
24h 05mBFS-JFK
$436

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Last minute flights from Belfast Intl to the United States

Last minute flight, train and bus deals

6/3lun.
multi-stop
30h 30mBFS-JFK
6/8sáb.
multi-stop
32h 25mJFK-BFS
$694
6/3lun.
multi-stop
32h 45mBFS-JFK
6/9dom.
multi-stop
20h 20mJFK-BFS
$701
6/2dom.
multi-stop
54h 45mBFS-JFK
6/8sáb.
multi-stop
10h 00mJFK-BFS
$708
6/3lun.
multi-stop
30h 30mBFS-JFK
6/7vie.
multi-stop
12h 45mJFK-BFS
$711
6/3lun.
multi-stop
35h 45mBFS-JFK
6/9dom.
multi-stop
10h 05mJFK-BFS
$713
6/2dom.
multi-stop
54h 45mBFS-JFK
6/7vie.
multi-stop
12h 45mJFK-BFS
$726
6/3lun.
multi-stop
42h 50mBFS-JFK
6/9dom.
multi-stop
20h 20mJFK-BFS
$738
6/3lun.
multi-stop
14h 40mBFS-JFK
6/8sáb.
multi-stop
10h 00mJFK-BFS
$759
6/2dom.
multi-stop
33h 15mBFS-JFK
6/8sáb.
multi-stop
17h 40mJFK-BFS
$777
6/3lun.
multi-stop
14h 40mBFS-JFK
6/9dom.
multi-stop
10h 35mJFK-BFS
$779

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Belfast Intl Airport - United States Flights