£248 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 26/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to the United States

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 29% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

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
Newark2 stops£512
Los Angeles
Los Angeles2 stops£710
Miami
Miami3 stops£775
San Francisco
San Francisco2 stops£672
Boston
Boston2 stops£698
Las Vegas
Las Vegas3 stops£724
Atlanta
Atlanta2 stops£794
Dallas
Dallas3 stops£1,093
Seattle
Seattle3 stops£635
Houston
Houston3 stops£877
Nashville
Nashville2 stops£686
New York
Newark2 stops£512
Los Angeles
Los Angeles2 stops£710
Miami
Miami3 stops£775
San Francisco
San Francisco2 stops£672
Boston
Boston2 stops£698
Las Vegas
Las Vegas3 stops£724
Atlanta
Atlanta2 stops£794
Dallas
Dallas3 stops£1,093
Seattle
Seattle3 stops£635
Houston
Houston3 stops£877
Nashville
Nashville2 stops£686

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

Fri, 22 May - Fri, 29 May
Multiple Airlines Logo
08:55 - 13:15
BFS
-
EWR
33h 20m
2 stops
Multiple Airlines Logo
17:45 - 21:15
EWR
-
BFS
22h 30m
2 stops
£512Multiple Airlines
Tue, 19 May - Tue, 26 May
Multiple Airlines Logo
07:35 - 13:15
BFS
-
EWR
34h 40m
2 stops
Multiple Airlines Logo
17:20 - 15:15
EWR
-
BFS
16h 55m
2 stops
£523Multiple Airlines
Mon, 1 Jun - Fri, 5 Jun
Multiple Airlines Logo
08:40 - 14:59
BFS
-
EWR
35h 19m
2 stops
Multiple Airlines Logo
17:45 - 21:15
EWR
-
BFS
22h 30m
2 stops
£524Multiple Airlines
Tue, 5 May - Fri, 8 May
Multiple Airlines Logo
07:35 - 13:15
BFS
-
EWR
34h 40m
2 stops
Multiple Airlines Logo
17:45 - 21:15
EWR
-
BFS
22h 30m
2 stops
£525Multiple Airlines
Mon, 1 Jun - Fri, 5 Jun
Multiple Airlines Logo
08:40 - 15:40
BFS
-
JFK
36h 00m
3 stops
Multiple Airlines Logo
17:10 - 21:15
JFK
-
BFS
23h 05m
2 stops
£532Multiple Airlines
Wed, 3 Jun - Wed, 10 Jun
Multiple Airlines Logo
15:25 - 17:00
BFS
-
JFK
30h 35m
2 stops
Multiple Airlines Logo
18:55 - 23:15
JFK
-
BFS
23h 20m
2 stops
£543Multiple Airlines
Tue, 5 May - Fri, 8 May
Multiple Airlines Logo
07:35 - 13:15
BFS
-
EWR
34h 40m
3 stops
Multiple Airlines Logo
17:45 - 21:15
EWR
-
BFS
22h 30m
2 stops
£545Multiple Airlines
Tue, 1 Sep - Sun, 13 Sep
Multiple Airlines Logo
20:55 - 18:25
BFS
-
MCO
26h 30m
1 stop
Multiple Airlines Logo
20:30 - 09:55
MCO
-
BFS
32h 25m
1 stop
£545Multiple Airlines
Mon, 1 Jun - Fri, 5 Jun
Multiple Airlines Logo
21:55 - 17:00
BFS
-
JFK
24h 05m
2 stops
Multiple Airlines Logo
17:10 - 21:15
JFK
-
BFS
23h 05m
2 stops
£560Multiple Airlines
Mon, 4 May - Mon, 11 May
Multiple Airlines Logo
15:05 - 12:40
BFS
-
JFK
26h 35m
2 stops
Multiple Airlines Logo
19:10 - 00:05
JFK
-
BFS
23h 55m
2 stops
£560Multiple 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 June, when tickets cost £406 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £561 and £559 respectively.

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

Low seasonNovember
Cheapest flight£248
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (17% more expensive on average)
Flight from Belfast to Newark Liberty 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 4 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
FinnairOverall score based on 1390 reviews
7.7Boarding
7.4Comfort
8.2Crew
6.7Food
6.9Entertainment
Airline reviews

Comfort. Not good very little space after the person in front of you lay back.

8.0 ExcellentAnonymous, Apr 2026
IAD - MAD
Read more Finnair reviews

Comfort. Not good very little space after the person in front of you lay back.

On a more than 8 hours flight was only one meal included, which I have never experienced before. Always two meals on the overseas flight. It was very weird.

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

Positive: It was refreshingly easy and polite check-in and boarding staff. Flight was on time and Helsinki is a very well-signposted airport. Shopping was nice as well. Flight was not full and I had lots of space in economy. Flight was perfectly on time. Negative: Food and drink not very good, but that it is normal on any airline. Didn't expect anything else.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

On time, only a little turbulence, very competent and caring attendants. Clear information.

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

My issue is with the SkyWest terminal. The flight was not listed on the main airport flight screen list, and I had to do a Google search to locate the terminal and gate. We had to ask several airport employees where to locate the phantom gate. The airport did not provide adequate signage and was confusing. When we arrived, there was one vendor providing services that quickly closed, leaving zero options for food and drink while we waited hours for our delayed flight. The crew that assisted with check-in and boarding was VERY friendly.

Economy seats a bit small but other than that it was all good.

No complimentary drinks or snacks offered on a 2 hour flight was disappointing but everything else went well

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

I love the direct flights. It saves a lot of hassle and allows immigration and customs in Ireland, making arrival much easier.

Poor... food was horrible, boarding very slow, service on board mediocre

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

On time departure and early arrival. Flight attendant very nice.

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

Overall a good experience, however Wifi was not working on the flight.

Airlines should be prohibited from using the seats they get away with.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Flight left early and arrived 30 MINUTES early at the destination. Smooth trip.

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

The Britts are wonderful to fly with and the crew were very hospitable. Again, I really wish they had been able to retrieve my carryon bag from baggage claim before the flight so I could be in a less worrisome state of mind, but that's not on them. I completely understand. The window seats with the dimmable windows were very cool!

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

food options were terrible. for a 10-hour flight, there should be 2 decent meals. Also, flight attendants should come around with drinks more than just at the meals.

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

Information on your arrival and departure airports