What are the cheapest airlines to fly from Northern Ireland to USA one-way?

One-way options have recently been found by users for as low as £498 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £637 and Iberia from £861 one-way.

In terms of precipitation, rainfall in USA ranges from 71.0 - 114.0 inches per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit USA when rainfall is around 71.0 mm.

If weather is an important factor for your trip to USA, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

How far in advance should I book a flight from Northern Ireland to USA?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 50 days in advance, which can save you up to 99% on flights from Northern Ireland to USA compared to booking the week you need them. Waiting 50 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £441. For sooner than that we have options available in the next 3 days from £1,335.

What is the cheapest month to fly from Northern Ireland to USA?

May is one of the best times of the year to fly to USA from Northern Ireland. Prices for May average £479 per person but you can even find prices for as low as £372. The most expensive prices can be found in the month of August. Opting for a May flight can save you 37% on your journey compared to booking in August

Can I find deals for flights from Northern Ireland to USA that include hotel bookings?

Yes. In addition to deals on Northern Ireland to USA flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Northern Ireland to USA?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to USA.

Can I find deals for business class flights from Northern Ireland to USA?

Yes. Cheapflights offers flight deals from Northern Ireland to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£524+ Flights from Northern Ireland to the United States

Cheap flight deals from Northern Ireland to USA

Round-trip from	£332
One-way from	£157
Popular in	August
Cheapest in	May
Average price	£447

18/9-22/9
2 total stops
34h 20m total
Northern Ireland to USA

Search Deals

20/10
2 total stops
29h 40m total
Northern Ireland to USA

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£37 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Northern Ireland to USA

Cheapest flights from Northern Ireland to USA
Explore the most affordable flight options available from Northern Ireland to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2025.

Thu 18/921:10BFS - JFK

1 stop23h 45mMultiple Airlines

Mon 22/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 26/6£332

Wed 24/907:25BFS - MCO

1 stop16h 00mMultiple Airlines

Thu 9/1020:30MCO - BFS

1 stop32h 25mMultiple Airlines

Deal found 26/6£394

Sat 27/914:20BHD - MCO

1 stop33h 05mMultiple Airlines

Sat 11/1020:30MCO - BHD

1 stop14h 25mMultiple Airlines

Deal found 26/6£423

Wed 8/1006:10BFS - MIA

2 stops20h 40mMultiple Airlines

Mon 27/1017:35MIA - BFS

2 stops23h 35mMultiple Airlines

Deal found 24/6£436

Thu 18/915:55BFS - EWR

2 stops26h 20mMultiple Airlines

Mon 22/918:50EWR - BFS

2 stops21h 05mMultiple Airlines

Deal found 26/6£441

Wed 8/1006:50BHD - MIA

1 stop12h 40mBritish Airways

Mon 27/1023:05MIA - BHD

1 stop11h 05mBritish Airways

Deal found 26/6£471

Sat 27/909:35BHD - MCO

2 stops17h 23mBritish Airways

Sat 11/1015:38MCO - BHD

2 stops15h 37mBritish Airways

Deal found 26/6£480

Wed 24/910:00BHD - MCO

1 stop14h 00mAmerican Airlines

Wed 8/1014:45MCO - BHD

2 stops17h 45mAmerican Airlines

Deal found 26/6£492

Mon 8/906:30BHD - MIA

2 stops20h 00mDelta

Sun 28/919:30MIA - BHD

2 stops20h 45mDelta

Deal found 26/6£499

Wed 20/807:05BHD - SEA

2 stops21h 35mMultiple Airlines

Sat 6/919:00SEA - BHD

2 stops17h 25mMultiple Airlines

Deal found 26/6£515

Mon 8/919:30BHD - MIA

1 stop26h 30mFinnair

Sun 28/913:29MIA - BHD

2 stops17h 01mFinnair

Deal found 25/6£520

Mon 8/919:30BHD - MIA

1 stop26h 30mMultiple Airlines

Sun 28/919:35MIA - BHD

1 stop12h 30mMultiple Airlines

Deal found 26/6£522

Best flights from Northern Ireland to USA
Discover carefully curated flight deals from Northern Ireland to USA that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 27 June 2025.

Thu 18/921:10BFS - JFK

1 stop23h 45mMultiple Airlines

Mon 22/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 26/6£332

Wed 8/1006:50BHD - MIA

1 stop12h 40mBritish Airways

Mon 27/1023:05MIA - BHD

1 stop11h 05mBritish Airways

Deal found 26/6£471

Wed 24/910:00BHD - MCO

1 stop14h 00mAmerican Airlines

Wed 8/1014:45MCO - BHD

2 stops17h 45mAmerican Airlines

Deal found 26/6£492

Mon 8/906:30BHD - MIA

2 stops22h 05mDelta

Sun 28/919:30MIA - BHD

2 stops16h 25mDelta

Deal found 25/6£499

Mon 8/919:30BHD - MIA

1 stop26h 30mFinnair

Sun 28/913:29MIA - BHD

2 stops17h 01mFinnair

Deal found 25/6£520

Fri 26/906:30BHD - MCO

2 stops17h 27mKLM

Sat 11/1023:00MCO - BHD

2 stops17h 15mKLM

Deal found 26/6£588

Thu 28/806:10BFS - LAX

1 stop15h 50mMultiple Airlines

Sat 6/916:25LAX - BFS

1 stop31h 20mMultiple Airlines

Deal found 24/6£334

Sat 27/910:15BHD - MCO

1 stop34h 00mAer Lingus

Sat 11/1017:45MCO - BHD

1 stop14h 10mAer Lingus

Deal found 25/6£844

Wed 24/907:25BFS - MCO

1 stop16h 00mMultiple Airlines

Thu 9/1020:30MCO - BFS

1 stop32h 25mMultiple Airlines

Deal found 26/6£394

Sat 27/909:35BHD - MCO

2 stops17h 23mBritish Airways

Sat 11/1015:38MCO - BHD

2 stops15h 37mBritish Airways

Deal found 26/6£480

Sat 27/914:20BHD - MCO

1 stop33h 05mMultiple Airlines

Sat 11/1020:30MCO - BHD

1 stop14h 25mMultiple Airlines

Deal found 26/6£423

Sun 17/815:50BHD - SEA

1 stop27h 45mAmerican Airlines

Tue 9/915:00SEA - BHD

2 stops20h 25mAmerican Airlines

Deal found 26/6£556

Last-minute flights from Northern Ireland to USA
Discover last-minute flight deals from Northern Ireland to USA. Data last updated 27 June 2025 and is based on user searches.

Sat 28/609:40BFS - LAX

1 stop36h 30mMultiple Airlines

Fri 1/816:30LAX - BFS

1 stop19h 35mMultiple Airlines

Deal found 25/6£859

Tue 1/707:45BFS - JFK

1 stop14h 30mMultiple Airlines

Wed 9/719:00JFK - BFS

1 stop13h 00mMultiple Airlines

Deal found 26/6£454

Thu 3/706:30BHD - SEA

1 stop17h 20mKLM

Thu 17/717:35SEA - BHD

1 stop15h 20mKLM

Deal found 25/6£667

Thu 3/706:30BHD - SEA

1 stop17h 20mDelta

Thu 17/709:45SEA - BHD

2 stops23h 10mDelta

Deal found 25/6£671

Thu 3/706:30BHD - SEA

2 stops18h 55mMultiple Airlines

Thu 17/713:30SEA - BHD

2 stops19h 25mMultiple Airlines

Deal found 25/6£702

Thu 3/706:00BFS - SEA

3 stops33h 32mMultiple Airlines

Thu 17/710:00SEA - BFS

3 stops29h 30mMultiple Airlines

Deal found 25/6£904

Thu 10/706:35BHD - MCO

1 stop17h 25mAmerican Airlines

Wed 23/714:22MCO - BHD

2 stops18h 08mAmerican Airlines

Deal found 25/6£550

Thu 10/721:00BFS - MCO

1 stop26h 25mMultiple Airlines

Wed 23/720:30MCO - BFS

1 stop20h 30mMultiple Airlines

Deal found 25/6£554

Thu 10/706:30BHD - MCO

2 stops17h 19mDelta

Wed 23/719:35MCO - BHD

2 stops16h 20mDelta

Deal found 25/6£578

Thu 10/716:00BHD - MCO

1 stop31h 25mMultiple Airlines

Wed 23/720:30MCO - BHD

1 stop19h 05mMultiple Airlines

Deal found 25/6£605

Mon 14/708:50BHD - MIA

1 stop34h 30mMultiple Airlines

Sat 19/717:20MIA - BHD

1 stop33h 50mMultiple Airlines

Deal found 26/6£605

Mon 14/723:45BFS - MIA

3 stops29h 26mMultiple Airlines

Sat 19/717:20MIA - BFS

1 stop15h 50mMultiple Airlines

Deal found 26/6£708

One-way flights from Northern Ireland to USA
Search for one-way flight options from Northern Ireland to USA. Find affordable one-way fares based on user searches. Data last updated 27 June 2025.

Mon 20/1021:00BFS - JFK

2 stops29h 40mMultiple Airlines

Deal found 25/6£157

Sun 21/920:10BFS - LAX

1 stop24h 55mMultiple Airlines

Deal found 24/6£205

Mon 20/1021:00BFS - SEA

3 stops45h 29mMultiple Airlines

Deal found 25/6£250

Thu 21/815:40BHD - MCO

1 stop31h 45mMultiple Airlines

Deal found 26/6£285

Wed 22/1009:35BFS - EWR

2 stops34h 45mMultiple Airlines

Deal found 25/6£312

Wed 22/1017:40BHD - SEA

2 stops36h 25mMultiple Airlines

Deal found 25/6£374

Sat 9/805:45BFS - MCO

2 stops23h 00mMultiple Airlines

Deal found 25/6£404

Sat 9/805:45BFS - MIA

3 stops40h 08mMultiple Airlines

Deal found 25/6£431

Sat 9/817:50BHD - MIA

3 stops57h 47mMultiple Airlines

Deal found 25/6£465

Thu 21/806:45BHD - MCO

2 stops23h 03mAer Lingus

Deal found 26/6£498

Tue 21/1015:20BHD - SEA

2 stops34h 30mAer Lingus

Deal found 25/6£541

Sat 9/816:15BHD - MIA

2 stops23h 54mBritish Airways

Deal found 25/6£637

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

Thu 18/9

21:10-15:55

1 stop23h 45m

New York John F Kennedy Intl

Mon 22/9

18:20-09:55

1 stop10h 35m

£332

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Thu 28/8

06:10-14:00

1 stop15h 50m

Los Angeles

Sat 6/9

16:25-07:45

1 stop31h 20m

£334

BelfastOrlando

BFS - MCO

BFSMCO

Belfast Intl

Wed 24/9

07:25-18:25

1 stop16h 00m

Orlando

Thu 9/10

20:30-09:55

1 stop32h 25m

£394

BelfastOrlando

BHD - MCO

BHDMCO

Belfast City

Sat 27/9

14:20-18:25

1 stop33h 05m

Orlando

Sat 11/10

20:30-15:55

1 stop14h 25m

£423

BelfastMiami

BFS - MIA

BFSMIA

Belfast Intl

Wed 8/10

06:10-21:50

2 stops20h 40m

Miami

Mon 27/10

17:35-21:10

2 stops23h 35m

£436

BelfastNewark

BFS - EWR

BFSEWR

Belfast Intl

Thu 18/9

15:55-13:15

2 stops26h 20m

Newark

Mon 22/9

18:50-20:55

2 stops21h 05m

£441

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Wed 8/10

06:50-14:30

1 stop12h 40m

Miami

Mon 27/10

23:05-14:10

1 stop11h 05m

£471

BelfastOrlando

BHD - MCO

BHDMCO

Belfast City

Sat 27/9

09:35-21:58

2 stops17h 23m

Orlando

Sat 11/10

15:38-12:15

2 stops15h 37m

£480

BelfastOrlando

BHD - MCO

BHDMCO

Belfast City

Wed 24/9

06:50-19:00

1 stop17h 10m

Orlando

Thu 9/10

13:54-11:10

2 stops16h 16m

£492

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Mon 8/9

06:30-21:30

2 stops20h 00m

Miami

Sun 28/9

19:30-21:15

2 stops20h 45m

£499

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 38 results

Best time to book a flight from Northern Ireland to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Northern Ireland with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to the United States

What is the cheapest month to book a flight from Northern Ireland to USA?

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to USA (average of £575). Flying from Northern Ireland to USA in July is currently the most expensive (average of £811). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from NIR to US?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to USA as you normally would.

Reviews of airlines servicing USA

Get a feel of what it's like to fly with Delta, KLM, andFinnair from Northern Ireland to the United States by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,963 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,365 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Finnair

7.6

Good

1,298 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Aer Lingus

7.1

Good

1,133 reviews

Delta

8.0

Very Good

7,963 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines to fly from Northern Ireland to USA one-way?
One-way options have recently been found by users for as low as £498 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £637 and Iberia from £861 one-way.
Can I find deals for flights from Northern Ireland to USA that include hotel bookings?
Yes. In addition to deals on Northern Ireland to USA flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to USA?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to USA.
Can I find deals for business class flights from Northern Ireland to USA?
Yes. Cheapflights offers flight deals from Northern Ireland to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Northern Ireland to USA?
Currently, January is the cheapest month in which you can book a flight from Northern Ireland to USA (average of £575). Flying from Northern Ireland to USA in July is currently the most expensive (average of £811). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Northern Ireland to USA

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£337	Average£551	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£407	Average£576	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Northern Ireland to USA?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Northern Ireland to USA. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to USA?

Cheapflights helps you find that perfect flight to USA from Northern Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Northern Ireland to USA with no change fees?

Yes, we can. To see specific flights from Northern Ireland to USA with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Northern Ireland to USA become cheaper?

Yes! Start tracking prices for Northern Ireland to USA flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Northern Ireland to the United States from £157

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to USA

Keep the following information in mind while searching for Northern Ireland to USA flight deals. Data was last updated 27 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Northern Ireland to USA

Cheapest flights from Northern Ireland to USAExplore the most affordable flight options available from Northern Ireland to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2025.

Explore the most affordable flight options available from Northern Ireland to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to the United States that are best for you.

Best time to book a flight from Northern Ireland to USA

Have a flexible travel schedule? Discover the best time to fly to USA from Northern Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to the United States

What is the cheapest month to book a flight from Northern Ireland to USA?

What is the cheapest time of day to fly from NIR to US?

Find hourly flight availability from Northern Ireland to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 June 2025.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 27 June 2025.

Get a feel of what it's like to fly with Delta, KLM, andFinnair from Northern Ireland to the United States by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Northern Ireland to USA one-way?

Can I find deals for flights from Northern Ireland to USA that include hotel bookings?

How can I find direct flights from Northern Ireland to USA?

Can I find deals for business class flights from Northern Ireland to USA?

What is the cheapest month to book a flight from Northern Ireland to USA?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Northern Ireland to USA

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Northern Ireland to USA

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Northern Ireland to USA?

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to USA?

Can Cheapflights find flights from Northern Ireland to USA with no change fees?

Can Cheapflights notify me if prices for flights from Northern Ireland to USA become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Northern Ireland to USA
Explore the most affordable flight options available from Northern Ireland to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2025.