What is the cheapest airline that flies from Northern Ireland to United States?

British Airways and American Airlines are the most popular carriers operating from Northern Ireland to United States

When did momondo last update prices for flights from Northern Ireland to United States?

Prices for flights from Northern Ireland to United States are updated daily.

How many operators does momondo search for flights from Northern Ireland to United States?

As of October 2026, there is 1 operator available to choose from for flights from Northern Ireland to United States.

How old do you have to be to fly from Northern Ireland to United States?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$362 Cheap Flights from Northern Ireland to the United States in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Northern Ireland to the United States

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:25 am - 9:49 pmBHD Belfast City-LAX Los Angeles

22h 24m2 stops London Gatwick Seattle/Tacoma Intl

11:20 am - 8:30 pmLAX Los Angeles-BHD Belfast City

25h 10m2 stops Seattle/Tacoma Intl London Heathrow

$646Multiple Airlines

Sat, Nov 21 - Fri, Dec 4

8:10 pm - 6:40 pmBHD Belfast City-MCO Orlando

27h 30m1 stop London Heathrow

10:30 pm - 9:05 amMCO Orlando-BHD Belfast City

30h 35m1 stop London Heathrow

$727British Airways

Sun, Oct 11 - Sun, Oct 25

2:20 pm - 9:30 pmBHD Belfast City-BOS Boston Logan Intl

35h 10m2 stops London Gatwick Porto

10:10 pm - 8:30 pmBOS Boston Logan Intl-BHD Belfast City

17h 20m2 stops Lisbon Humberto Delgado London Gatwick

$733Multiple Airlines

Mon, Oct 26 - Mon, Nov 2

6:30 am - 10:56 amBHD Belfast City-MCO Orlando

33h 26m2 stops London Heathrow New York John F Kennedy Intl

10:02 am - 10:45 amMCO Orlando-BHD Belfast City

20h 43m2 stops Charlotte Douglas London Heathrow

$734Finnair

Sun, Oct 11 - Sun, Oct 25

6:30 am - 10:56 amBHD Belfast City-MCO Orlando

33h 26m2 stops London Heathrow New York John F Kennedy Intl

7:30 pm - 6:50 pmMCO Orlando-BHD Belfast City

19h 20m2 stops Charlotte Douglas London Heathrow

$734Finnair

Sun, Oct 11 - Sun, Oct 25

6:30 am - 7:10 pmBHD Belfast City-MCO Orlando

17h 40m1 stop London Heathrow

10:40 am - 10:45 amMCO Orlando-BHD Belfast City

20h 05m2 stops Philadelphia London Heathrow

$739Multiple Airlines

Sun, Oct 11 - Sun, Oct 25

7:25 am - 8:15 pmBHD Belfast City-LAX Los Angeles

20h 50m1 stop London Gatwick

5:10 pm - 8:30 pmLAX Los Angeles-BHD Belfast City

19h 20m1 stop London Heathrow

$740Multiple Airlines

Sat, Nov 21 - Fri, Dec 4

7:15 am - 6:00 pmBHD Belfast City-SEA Seattle/Tacoma Intl

17h 45m2 stops London Gatwick Reykjavik Keflavik Intl

2:35 pm - 7:35 pmSEA Seattle/Tacoma Intl-BHD Belfast City

21h 00m2 stops Reykjavik Keflavik Intl London Gatwick

$745Multiple Airlines

Thu, Oct 29 - Thu, Nov 5

3:05 pm - 10:50 pmBHD Belfast City-BOS Boston Logan Intl

11h 45m1 stop London Heathrow

7:06 pm - 3:20 pmBOS Boston Logan Intl-BHD Belfast City

15h 14m2 stops New York John F Kennedy Intl London Heathrow

$747British Airways

Tue, Mar 23 - Tue, Mar 30

11:40 am - 8:40 pmBHD Belfast City-BOS Boston Logan Intl

13h 00m1 stop London Heathrow

7:35 pm - 10:45 amBOS Boston Logan Intl-BHD Belfast City

10h 10m1 stop London Heathrow

$747British Airways

Tue, Mar 23 - Tue, Mar 30

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British Airways flights from Northern Ireland to United States

Our best British Airways deals on Northern Ireland to United States flight tickets

British Airways

Oct 11

BHD8:10 pmBelfast City

27h 30m

1 stop

MCO6:40 pmOrlando

Oct 25

MCO10:30 pmOrlando

30h 35m

1 stop

BHD9:05 amBelfast City

$727

British Airways

Mar 23

BHD11:40 amBelfast City

13h 00m

1 stop

BOS8:40 pmBoston Logan Intl

Mar 30

BOS7:35 pmBoston Logan Intl

10h 10m

1 stop

BHD10:45 amBelfast City

$747

British Airways

Feb 27

BHD3:15 pmBelfast City

11h 35m

1 stop

BOS9:50 pmBoston Logan Intl

Mar 14

BOS10:30 pmBoston Logan Intl

11h 20m

1 stop

BHD1:50 pmBelfast City

$748

American Airlines flights from Northern Ireland to United States

Our best American Airlines deals on Northern Ireland to United States flight tickets

American Airlines

Oct 9

BHD12:00 pmBelfast City

16h 10m

1 stop

LAX8:10 pmLos Angeles

Oct 13

LAX4:30 pmLos Angeles

14h 50m

1 stop

BHD3:20 pmBelfast City

$717

American Airlines

Nov 21

BHD11:45 amBelfast City

16h 35m

1 stop

LAX8:20 pmLos Angeles

Dec 4

LAX6:25 pmLos Angeles

16h 45m

1 stop

BHD7:10 pmBelfast City

$840

American Airlines

Nov 20

BHD11:50 amBelfast City

12h 50m

1 stop

BOS7:40 pmBoston Logan Intl

Nov 29

BOS7:15 pmBoston Logan Intl

10h 30m

1 stop

BHD10:45 amBelfast City

$859

momondo 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

Cheapest round-trip

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Sat 11/21

7:25 am-9:49 pm

2 stops22h 24m

Los Angeles

Fri 12/4

11:20 am-8:30 pm

2 stops25h 10m

$646

BelfastOrlando

BHD Belfast City - MCO Orlando

BHDMCO

Belfast City

Sun 10/11

8:10 pm-6:40 pm

1 stop27h 30m

Orlando

Sun 10/25

10:30 pm-9:05 am

1 stop30h 35m

$727

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Mon 10/26

2:20 pm-9:30 pm

2 stops35h 10m

Boston Logan Intl

Mon 11/2

10:10 pm-8:30 pm

2 stops17h 20m

$733

BelfastOrlando

BHD Belfast City - MCO Orlando

BHDMCO

Belfast City

Sun 10/11

6:30 am-10:56 am

2 stops33h 26m

Orlando

Sun 10/25

10:02 am-10:45 am

2 stops20h 43m

$734

BelfastOrlando

BHD Belfast City - MCO Orlando

BHDMCO

Belfast City

Sun 10/11

6:30 am-10:56 am

2 stops33h 26m

Orlando

Sun 10/25

7:30 pm-6:50 pm

2 stops19h 20m

$734

BelfastOrlando

BHD Belfast City - MCO Orlando

BHDMCO

Belfast City

Sun 10/11

6:30 am-7:10 pm

1 stop17h 40m

Orlando

Sun 10/25

10:40 am-10:45 am

2 stops20h 05m

$739

BelfastLos Angeles

BHD Belfast City - LAX Los Angeles

BHDLAX

Belfast City

Sat 11/21

7:25 am-8:15 pm

1 stop20h 50m

Los Angeles

Fri 12/4

5:10 pm-8:30 pm

1 stop19h 20m

$740

BelfastSeattle

BHD Belfast City - SEA Seattle/Tacoma Intl

BHDSEA

Belfast City

Thu 10/29

7:15 am-6:00 pm

2 stops17h 45m

Seattle/Tacoma Intl

Thu 11/5

2:35 pm-7:35 pm

2 stops21h 00m

$745

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Tue 3/23

3:05 pm-10:50 pm

1 stop11h 45m

Boston Logan Intl

Tue 3/30

7:06 pm-3:20 pm

2 stops15h 14m

$747

Quickest round-trip

BelfastBoston

BHD Belfast City - BOS Boston Logan Intl

BHDBOS

Belfast City

Tue 3/23

11:40 am-8:40 pm

1 stop13h 00m

Boston Logan Intl

Tue 3/30

7:35 pm-10:45 am

1 stop10h 10m

$747

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Northern Ireland to United States

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to United States?

In general, February is the cheapest month to fly from Northern Ireland to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $600. If you aren’t able to travel during the month of February, then book flights to United States from Northern Ireland during January instead. Flights to United States in January, while not as cheap as those in February, still average around $687.

Can stopping save me money on Northern Ireland to United States flights?

You could potentially save up to 1% on your flight if you consider stops on a Northern Ireland to United States flight.

Cheap Northern Ireland to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to United States

Best Price Found	$362
Fastest flight time	11h 00m
Direct flights	None

The best one-way flight to United States from Northern Ireland in the past 72 hours is $362. The best round-trip flight deal from Northern Ireland to United States found on momondo in the last 72 hours is $646.

The fastest flight from Northern Ireland to United States takes 11h 00m

There are no direct flights from Northern Ireland to United States. There are no popular flight routes from Northern Ireland to United States.

Search flight deals

Frequently asked questions about flying from Northern Ireland to the United States

When did momondo last update prices for flights from Northern Ireland to United States?
Prices for flights from Northern Ireland to United States are updated daily.
How many operators does momondo search for flights from Northern Ireland to United States?
As of October 2026, there is 1 operator available to choose from for flights from Northern Ireland to United States.
How old do you have to be to fly from Northern Ireland to United States?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to United States

Compare and see reviews for airlines that fly from Northern Ireland to United States with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $1,094	Free Cancellation	Rating 6.7 8,241 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to United States?

Finding the right flight to United States from Northern Ireland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United States quick and easy, saving you time and money.

Can I find flights from Northern Ireland to United States with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Northern Ireland to United States flights to just show those with flexible booking policies.

How can momondo help me find flights from Northern Ireland to United States?

momondo helps you find the best flight between Northern Ireland and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Northern Ireland to United States right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Northern Ireland to United States flights. All you need is a valid email address and we will do the rest; it is that quick and easy.