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 101% 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 £440. For sooner than that we have options available in the next 3 days from £1,349.

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 £487 per person but you can even find prices for as low as £376. The most expensive prices can be found in the month of August. Opting for a May flight can save you 43% 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.

£564+ Flights from Northern Ireland to the United States

Cheap flight deals from Northern Ireland to USA

Round-trip from	£325
Popular in	August
Cheapest in	May
Average price	£455

29/9-29/9
2 total stops
46h 25m total
Northern Ireland to USA

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£44 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£15 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 13 giugno 2025.

lun 29/906:10BFS - MIA

1 stop13h 10mMultiple Airlines

lun 29/917:15MIA - BFS

1 stop33h 15mMultiple Airlines

Deal found 11/6£325

mar 16/908:15BFS - JFK

1 stop12h 40mMultiple Airlines

mar 23/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 12/6£360

mar 16/907:05BHD - JFK

1 stop13h 50mMultiple Airlines

mar 23/918:20JFK - BHD

1 stop14h 25mMultiple Airlines

Deal found 10/6£372

mar 16/909:35BHD - EWR

1 stop14h 50mBritish Airways

mar 23/921:25EWR - BHD

1 stop12h 55mBritish Airways

Deal found 10/6£391

mar 16/916:25BHD - EWR

1 stop32h 00mMultiple Airlines

mar 23/917:39EWR - BHD

2 stops20h 46mMultiple Airlines

Deal found 10/6£392

lun 15/915:25BHD - JFK

1 stop12h 05mBritish Airways

lun 22/920:05JFK - BHD

1 stop11h 50mBritish Airways

Deal found 11/6£400

lun 15/906:30BHD - JFK

1 stop12h 00mDelta

dom 21/900:50JFK - BHD

1 stop15h 25mDelta

Deal found 11/6£412

mar 16/906:30BHD - JFK

2 stops20h 16mVirgin Atlantic

lun 22/900:50JFK - BHD

1 stop15h 25mVirgin Atlantic

Deal found 12/6£416

lun 15/906:30BHD - LGA

2 stops20h 56mDelta

lun 22/913:00LGA - BHD

2 stops22h 55mDelta

Deal found 11/6£416

lun 8/919:30BHD - JFK

2 stops29h 29mFinnair

lun 15/921:30JFK - BHD

2 stops32h 05mFinnair

Deal found 10/6£418

mar 16/906:30BHD - EWR

2 stops17h 58mDelta

mar 23/916:50EWR - BHD

2 stops19h 05mDelta

Deal found 12/6£420

dom 21/917:25BHD - LGA

2 stops43h 01mVirgin Atlantic

dom 28/919:00LGA - BHD

2 stops45h 15mVirgin Atlantic

Deal found 10/6£430

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 13 giugno 2025.

lun 29/906:10BFS - MIA

1 stop13h 10mMultiple Airlines

lun 29/917:15MIA - BFS

1 stop33h 15mMultiple Airlines

Deal found 11/6£325

mar 16/909:35BHD - EWR

1 stop14h 50mBritish Airways

mar 23/921:25EWR - BHD

1 stop12h 55mBritish Airways

Deal found 10/6£391

lun 15/906:30BHD - JFK

1 stop12h 00mDelta

dom 21/900:50JFK - BHD

1 stop15h 25mDelta

Deal found 11/6£412

mar 16/906:30BHD - JFK

2 stops20h 16mVirgin Atlantic

lun 22/900:50JFK - BHD

1 stop15h 25mVirgin Atlantic

Deal found 12/6£416

lun 8/919:30BHD - JFK

2 stops29h 29mFinnair

lun 15/921:30JFK - BHD

2 stops32h 05mFinnair

Deal found 10/6£418

lun 30/617:25BHD - JFK

1 stop24h 55mKLM

dom 6/700:50JFK - BHD

1 stop15h 25mKLM

Deal found 10/6£448

mer 16/706:50BHD - EWR

2 stops14h 10mAer Lingus

mer 23/717:30EWR - BHD

2 stops15h 00mAer Lingus

Deal found 11/6£648

mar 16/908:15BFS - JFK

1 stop12h 40mMultiple Airlines

mar 23/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Deal found 12/6£360

lun 15/915:25BHD - JFK

1 stop12h 05mBritish Airways

lun 22/920:05JFK - BHD

1 stop11h 50mBritish Airways

Deal found 11/6£400

mar 16/907:05BHD - JFK

1 stop13h 50mMultiple Airlines

mar 23/918:20JFK - BHD

1 stop14h 25mMultiple Airlines

Deal found 10/6£372

lun 15/906:30BHD - LGA

2 stops20h 56mDelta

lun 22/913:00LGA - BHD

2 stops22h 55mDelta

Deal found 11/6£416

dom 21/917:25BHD - LGA

2 stops43h 01mVirgin Atlantic

dom 28/919:00LGA - BHD

2 stops45h 15mVirgin Atlantic

Deal found 10/6£430

Last-minute flights from Northern Ireland to USA
Discover last-minute flight deals from Northern Ireland to USA. Data last updated 13 giugno 2025 and is based on user searches.

mer 18/613:50BHD - JFK

1 stop11h 05mBritish Airways

dom 31/818:30JFK - BHD

1 stop9h 35mBritish Airways

Deal found 11/6£575

mer 18/606:30BHD - JFK

2 stops14h 15mKLM

dom 31/821:30JFK - BHD

2 stops14h 25mKLM

Deal found 10/6£765

mer 18/610:20BHD - JFK

1 stop11h 55mAer Lingus

dom 31/819:00JFK - BHD

1 stop12h 55mAer Lingus

Deal found 12/6£782

gio 19/621:10BFS - MIA

1 stop22h 10mMultiple Airlines

lun 23/617:15MIA - BFS

1 stop33h 15mMultiple Airlines

Deal found 12/6£556

lun 23/606:55BHD - EWR

2 stops14h 05mAer Lingus

gio 26/617:30EWR - BHD

2 stops14h 45mAer Lingus

Deal found 12/6£1,392

lun 23/608:30BHD - LGA

2 stops17h 04mVirgin Atlantic

gio 26/615:00LGA - BHD

2 stops20h 55mVirgin Atlantic

Deal found 12/6£1,481

lun 23/608:30BHD - LGA

2 stops18h 00mDelta

gio 26/617:04LGA - BHD

2 stops18h 51mDelta

Deal found 11/6£1,508

lun 23/613:50BHD - EWR

1 stop10h 35mBritish Airways

gio 26/617:55EWR - BHD

1 stop9h 50mBritish Airways

Deal found 11/6£1,863

mer 25/618:30BHD - LGA

2 stops27h 45mBritish Airways

mer 2/716:00LGA - BHD

2 stops16h 30mBritish Airways

Deal found 10/6£514

lun 30/617:25BHD - JFK

1 stop24h 55mKLM

dom 6/700:50JFK - BHD

1 stop15h 25mKLM

Deal found 10/6£448

lun 30/613:50BHD - EWR

1 stop10h 35mBritish Airways

lun 7/721:25EWR - BHD

1 stop10h 30mBritish Airways

Deal found 10/6£454

mer 2/716:05BHD - JFK

1 stop10h 55mBritish Airways

mer 9/720:05JFK - BHD

1 stop10h 50mBritish Airways

Deal found 10/6£406

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 13 giugno 2025.

lun 23/608:10BFS - MIA

3 stops35h 10mMultiple Airlines

Deal found 11/6£327

gio 24/708:50BFS - JFK

2 stops18h 10mMultiple Airlines

Deal found 11/6£364

gio 24/706:00BFS - LGA

2 stops20h 05mMultiple Airlines

Deal found 11/6£378

gio 24/721:05BFS - EWR

3 stops28h 55mMultiple Airlines

Deal found 11/6£394

lun 27/1011:30BHD - JFK

1 stop10h 50mBritish Airways

Deal found 11/6£680

lun 27/1009:10BHD - EWR

1 stop15h 25mBritish Airways

Deal found 11/6£765

sab 19/706:55BHD - EWR

3 stops19h 05mMultiple Airlines

Deal found 12/6£841

sab 19/706:55BHD - LGA

2 stops31h 00mMultiple Airlines

Deal found 12/6£893

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

BelfastMiami

BFS - MIA

BFSMIA

Belfast Intl

lun 29/9

06:10-14:20

1 stop13h 10m

Miami

lun 29/9

17:15-07:30

1 stop33h 15m

£325

BelfastNew York

BFS - JFK

BFSJFK

Belfast Intl

mar 16/9

08:15-15:55

1 stop12h 40m

New York John F Kennedy Intl

mar 23/9

18:20-09:55

1 stop10h 35m

£360

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

mar 16/9

07:05-15:55

1 stop13h 50m

New York John F Kennedy Intl

mar 23/9

18:20-13:45

1 stop14h 25m

£375

BelfastNewark

BHD - EWR

BHDEWR

Belfast City

mar 16/9

09:35-19:25

1 stop14h 50m

Newark

mar 23/9

21:25-15:20

1 stop12h 55m

£391

BelfastNewark

BHD - EWR

BHDEWR

Belfast City

mar 16/9

16:25-19:25

1 stop32h 00m

Newark

mar 23/9

17:39-19:25

2 stops20h 46m

£392

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

lun 15/9

15:25-22:30

1 stop12h 05m

New York John F Kennedy Intl

lun 22/9

20:05-12:55

1 stop11h 50m

£400

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

lun 15/9

06:30-13:30

1 stop12h 00m

New York John F Kennedy Intl

dom 21/9

00:50-21:15

1 stop15h 25m

£412

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

mar 16/9

16:25-12:40

1 stop25h 15m

New York John F Kennedy Intl

mar 23/9

13:55-10:35

2 stops15h 40m

£414

BelfastNew York

BHD - JFK

BHDJFK

Belfast City

mar 16/9

06:30-21:46

2 stops20h 16m

New York John F Kennedy Intl

lun 22/9

00:50-21:15

1 stop15h 25m

£416

BelfastNew York

BHD - LGA

BHDLGA

Belfast City

lun 15/9

06:30-22:26

2 stops20h 56m

New York LaGuardia

lun 22/9

13:00-16:55

2 stops22h 55m

£416

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 34 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.

Rainfall in USA by month

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.

Temperature in USA by month

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).

Reviews of airlines servicing USA

Read through reviews of airlines operating flights from Northern Ireland to USA, such as Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,950 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,290 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus

7.1

Good

1,118 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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£341	Average£565	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
American Airlines	Cheapest£411	Average£581	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 £325

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/9. 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 13 giugno 2025.

Round-trip 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 13 giugno 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 13 giugno 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 13 giugno 2025.

Rainfall in USA by month

Plan your trip to USA by taking into account the average rainfall totals by month.

Temperature in USA by month

Plan your trip to USA by taking into account the average temperature totals by month.

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 13 giugno 2025.

Read through reviews of airlines operating flights from Northern Ireland to USA, such as Delta, KLM and Finnair. Users can see the overall rating for each airline as well as how each is rated in terms of 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.

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?

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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 13 giugno 2025.