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

Users have found that booking a flight from Northern Ireland to North America at least 32 days early can save you up to 98% on average compared to booking a flight this week. If booking 32 days before your flight isn’t an option for you, users have found flights from Northern Ireland to North America for as little as £439 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as £836 for flights departing within the next 3 days.

What is the cheapest month to fly from Northern Ireland to North America?

September is one of the best times of the year to fly to North America from Northern Ireland. Prices for September average £509 per person but you can even find prices for as low as £382. The most expensive prices can be found in the month of August. Opting for a September flight can save you 55% on your journey compared to booking in August

How can I find direct flights from Northern Ireland to North America?

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

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

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

£1,572+ Flights from Northern Ireland to North America

Cheap flight deals from Northern Ireland to North America

Round-trip from	£427
One-way from	£313
Popular in	August
Cheapest in	September
Average price	£424

31/10-2/11
4 total stops
38h 10m total
Northern Ireland to North America

Search Deals

20/6
3 total stops
37h 30m total
Northern Ireland to North America

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£57 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

Find flight deals from Northern Ireland to North America

Cheapest flights from Northern Ireland to North America
Explore the most affordable flight options available from Northern Ireland to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 May 2025.

Mon 30/609:50BHD - BOS

1 stop12h 20mBritish Airways

Mon 21/722:00BOS - BHD

1 stop12h 40mBritish Airways

Deal found 7/5£466

Wed 17/906:10BFS - LAX

1 stop16h 00mMultiple Airlines

Wed 24/916:30LAX - BFS

1 stop20h 05mMultiple Airlines

Deal found 7/5£511

Thu 5/621:10BFS - BOS

2 stops31h 37mMultiple Airlines

Thu 19/618:20BOS - BFS

2 stops16h 55mMultiple Airlines

Deal found 7/5£568

Wed 21/506:30BHD - SEA

1 stop17h 27mKLM

Fri 30/518:07SEA - BHD

1 stop19h 08mKLM

Deal found 7/5£599

Tue 15/706:30BHD - BOS

2 stops17h 50mDelta

Tue 12/820:15BOS - BHD

1 stop15h 40mDelta

Deal found 7/5£603

Tue 15/706:30BHD - BOS

2 stops15h 50mKLM

Wed 13/818:45BOS - BHD

1 stop21h 30mKLM

Deal found 7/5£607

Sun 13/713:00BHD - BOS

1 stop27h 20mAmerican Airlines

Sun 10/807:30BOS - BHD

1 stop20h 35mAmerican Airlines

Deal found 7/5£610

Tue 15/706:30BHD - BOS

2 stops15h 50mMultiple Airlines

Thu 14/822:20BOS - BHD

2 stops13h 35mMultiple Airlines

Deal found 7/5£625

Fri 20/618:40BFS - YVR

3 stops37h 30mMultiple Airlines

Fri 27/610:00YVR - BFS

3 stops27h 00mMultiple Airlines

Deal found 7/5£643

Wed 21/506:30BHD - SEA

2 stops20h 16mDelta

Fri 30/511:55SEA - BHD

2 stops21h 00mDelta

Deal found 7/5£667

Fri 9/506:50BHD - SEA

2 stops18h 09mAer Lingus

Fri 30/519:35SEA - BHD

2 stops17h 10mAer Lingus

Deal found 7/5£879

Thu 8/506:35BHD - SEA

2 stops17h 25mAmerican Airlines

Thu 22/513:30SEA - BHD

1 stop13h 40mAmerican Airlines

Deal found 7/5£929

Best flights from Northern Ireland to North America
Discover carefully curated flight deals from Northern Ireland to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 May 2025.

Fri 31/1006:00BFS - BOS

2 stops16h 00mMultiple Airlines

Sun 2/1118:20BOS - BFS

2 stops22h 10mMultiple Airlines

Deal found 8/5£427

Mon 30/609:50BHD - BOS

1 stop12h 20mBritish Airways

Mon 21/722:00BOS - BHD

1 stop12h 40mBritish Airways

Deal found 7/5£466

Wed 21/506:30BHD - SEA

1 stop17h 27mKLM

Fri 30/518:07SEA - BHD

1 stop19h 08mKLM

Deal found 7/5£599

Tue 15/706:30BHD - BOS

2 stops17h 50mDelta

Tue 12/820:15BOS - BHD

1 stop15h 40mDelta

Deal found 7/5£603

Sun 13/713:00BHD - BOS

1 stop27h 20mAmerican Airlines

Sat 16/820:20BOS - BHD

1 stop13h 45mAmerican Airlines

Deal found 7/5£610

Wed 17/906:10BFS - LAX

1 stop16h 00mMultiple Airlines

Wed 24/916:30LAX - BFS

1 stop20h 05mMultiple Airlines

Deal found 7/5£511

Tue 15/706:30BHD - BOS

2 stops15h 50mKLM

Thu 14/816:50BOS - BHD

1 stop23h 15mKLM

Deal found 7/5£607

Wed 21/506:30BHD - SEA

2 stops20h 16mDelta

Fri 30/511:55SEA - BHD

2 stops21h 00mDelta

Deal found 7/5£667

Tue 15/706:30BHD - BOS

2 stops15h 50mMultiple Airlines

Thu 14/822:20BOS - BHD

2 stops13h 35mMultiple Airlines

Deal found 7/5£625

Fri 20/618:40BFS - YVR

3 stops37h 30mMultiple Airlines

Fri 27/610:00YVR - BFS

3 stops27h 00mMultiple Airlines

Deal found 7/5£643

Sun 18/517:25BHD - IAH

1 stop25h 50mKLM

Thu 22/515:30IAH - BHD

1 stop23h 45mKLM

Deal found 6/5£5,388

Sun 18/511:00BHD - IAH

1 stop14h 15mBritish Airways

Thu 22/521:00IAH - BHD

1 stop16h 20mBritish Airways

Deal found 6/5£10,089

Last-minute flights from Northern Ireland to North America
Discover last-minute flight deals from Northern Ireland to North America. Data last updated 8 May 2025 and is based on user searches.

Thu 8/506:35BHD - SEA

2 stops17h 25mAmerican Airlines

Thu 22/513:30SEA - BHD

1 stop13h 40mAmerican Airlines

Deal found 7/5£929

Thu 8/512:40BHD - SEA

1 stop13h 40mBritish Airways

Thu 22/514:20SEA - BHD

2 stops17h 10mBritish Airways

Deal found 8/5£933

Fri 9/506:50BHD - SEA

2 stops18h 09mAer Lingus

Fri 30/519:35SEA - BHD

2 stops17h 10mAer Lingus

Deal found 7/5£879

Sun 18/517:25BHD - IAH

1 stop25h 50mKLM

Thu 22/515:30IAH - BHD

1 stop23h 45mKLM

Deal found 6/5£5,388

Sun 18/511:00BHD - IAH

1 stop14h 15mBritish Airways

Thu 22/521:00IAH - BHD

1 stop16h 20mBritish Airways

Deal found 6/5£10,089

Wed 21/506:30BHD - SEA

1 stop17h 27mKLM

Fri 30/518:07SEA - BHD

1 stop19h 08mKLM

Deal found 7/5£599

Wed 21/506:30BHD - SEA

2 stops20h 16mDelta

Fri 30/511:55SEA - BHD

2 stops21h 00mDelta

Deal found 7/5£667

Thu 5/621:10BFS - BOS

2 stops31h 37mMultiple Airlines

Thu 19/618:20BOS - BFS

2 stops16h 55mMultiple Airlines

Deal found 7/5£568

Fri 20/618:40BFS - YVR

3 stops37h 30mMultiple Airlines

Fri 27/610:00YVR - BFS

3 stops27h 00mMultiple Airlines

Deal found 7/5£643

Sat 21/619:35BFS - LAX

1 stop26h 35mMultiple Airlines

Wed 16/716:30LAX - BFS

1 stop21h 30mMultiple Airlines

Deal found 7/5£542

Mon 30/609:50BHD - BOS

1 stop12h 20mBritish Airways

Mon 21/722:00BOS - BHD

1 stop12h 40mBritish Airways

Deal found 7/5£466

Mon 30/617:25BHD - BOS

2 stops19h 35mDelta

Mon 21/720:59BOS - BHD

2 stops14h 56mDelta

Deal found 7/5£619

One-way flights from Northern Ireland to North America
Search for one-way flight options from Northern Ireland to North America. Find affordable one-way fares based on user searches. Data last updated 8 May 2025.

Fri 20/618:40BFS - YVR

3 stops37h 30mMultiple Airlines

Deal found 6/5£313

Wed 30/706:50BHD - SEA

2 stops19h 00mAer Lingus

Deal found 7/5£808

Wed 30/720:15BHD - SEA

1 stop23h 20mMultiple Airlines

Deal found 7/5£841

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BelfastBoston

BFS - BOS

BFSBOS

Belfast Intl

Fri 31/10

06:00-18:00

2 stops16h 00m

Boston Logan Intl

Sun 2/11

18:20-21:30

2 stops22h 10m

£427

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Mon 30/6

09:50-17:10

1 stop12h 20m

Boston Logan Intl

Mon 21/7

22:00-15:40

1 stop12h 40m

£466

BelfastLos Angeles

BFS - LAX

BFSLAX

Belfast Intl

Wed 17/9

06:10-14:10

1 stop16h 00m

Los Angeles

Wed 24/9

16:30-20:35

1 stop20h 05m

£511

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 21/5

06:30-15:57

1 stop17h 27m

Seattle/Tacoma Intl

Fri 30/5

18:07-21:15

1 stop19h 08m

£599

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Tue 15/7

06:30-19:20

2 stops17h 50m

Boston Logan Intl

Tue 12/8

20:15-16:55

1 stop15h 40m

£603

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Tue 15/7

06:30-17:20

2 stops15h 50m

Boston Logan Intl

Thu 14/8

16:50-21:05

1 stop23h 15m

£607

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Sun 13/7

13:00-11:20

1 stop27h 20m

Boston Logan Intl

Sun 10/8

07:30-09:05

1 stop20h 35m

£610

BelfastBoston

BHD - BOS

BHDBOS

Belfast City

Tue 15/7

06:30-17:20

2 stops15h 50m

Boston Logan Intl

Thu 14/8

22:20-16:55

2 stops13h 35m

£625

BelfastVancouver

BFS - YVR

BFSYVR

Belfast Intl

Fri 20/6

18:40-00:10

3 stops37h 30m

Vancouver Intl

Fri 27/6

10:00-21:00

3 stops27h 00m

£643

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

Wed 21/5

06:30-18:46

2 stops20h 16m

Seattle/Tacoma Intl

Fri 30/5

11:55-16:55

2 stops21h 00m

£667

Flights are sorted by cheapest return flights first.

Deals found on 6/5

Showing 1-10 of 16 results

Best time to book a flight from Northern Ireland to North America

Have a flexible travel schedule? Discover the best time to fly to North America 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 North America

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

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to North America (average of £575). Flying from Northern Ireland to North America 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 NA?

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

Rainfall in North America by month

In terms of precipitation, rainfall in North America 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 North America when rainfall is around 71.0 mm.

Temperature in North America by month

If weather is an important factor for your trip to North America, 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 North America

Delta

8.0

Very Good

7,946 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

7,946 reviews

Delta

8.0

Very Good

7,946 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

1,338 reviews

Delta

8.0

Very Good

7,946 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

7,946 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

7.0

Good

1,082 reviews

Delta

8.0

Very Good

7,946 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!

British Airways

6.6

Okay

6,873 reviews

Delta

8.0

Very Good

7,946 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

Can I find deals for flights from Northern Ireland to North America that include hotel bookings?
Yes. In addition to deals on Northern Ireland to North America flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to North America?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to North America.
Can I find deals for business class flights from Northern Ireland to North America?
Yes. Cheapflights offers flight deals from Northern Ireland to North America 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 North America?
Currently, January is the cheapest month in which you can book a flight from Northern Ireland to North America (average of £575). Flying from Northern Ireland to North America 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 airline flying from Northern Ireland to North America

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£347	Average£583	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from Northern Ireland to North America via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to North America 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 North America with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Northern Ireland to North America flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to North America from Northern Ireland today and book when prices fit your budget.

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Our users can plan ahead with confidence and find flights with no change fees

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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 North America from £313

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to North America

Keep the following information in mind while searching for Northern Ireland to North America flight deals. Data was last updated 8 May 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Northern Ireland to North America

Cheapest flights from Northern Ireland to North AmericaExplore the most affordable flight options available from Northern Ireland to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 May 2025.

Explore the most affordable flight options available from Northern Ireland to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 May 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Northern Ireland to North America

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

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to North America

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

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

Find hourly flight availability from Northern Ireland to North America. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 May 2025.

Rainfall in North America by month

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

Temperature in North America by month

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

Reviews of airlines servicing North America

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to North America. 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 North America that include hotel bookings?

How can I find direct flights from Northern Ireland to North America?

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

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

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 North America

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

Top airline flying from Northern Ireland to North America

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 North America?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Northern Ireland to North America
Explore the most affordable flight options available from Northern Ireland to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 May 2025.