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

Aer Lingus is the most popular carrier operating from United States to Belfast

How long does it take to fly to Belfast?

Flight times vary depending on what airport in United States you fly out of and what airport in Belfast you fly into. For example, flying from New York to Belfast Intl Airport takes 10h 35m on average. On the other hand, flying from Boston to Belfast Intl Airport takes 11h 35m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Belfast?

British Airways, Delta and American Airlines are the top three most popular airlines that fly to Belfast from United States according to our data. British Airways is the first choice among our users, with 91% of people opting to fly with this airline when traveling to Belfast. Keep in mind that there are 3 different airlines that fly to Belfast on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from United States to Belfast refresh daily.

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

The number of operators available for flights from United States to Belfast is 2 as of August 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Belfast.

What documentation or ID do you need to fly to Belfast?

The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$226 Cheap Flights from the United States to Belfast in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Belfast

Round-trip

One-way

Last minute

Recent round-trip flight deals from the United States to Belfast

Enter your travel dates to find the best prices.

4:50 pm - 10:05 amMCO Orlando-BFS Belfast Intl

12h 15m1 stop London Gatwick

2:15 pm - 2:50 pmBFS Belfast Intl-MCO Orlando

29h 35m1 stop London Gatwick

$599Multiple Airlines

Tue, Feb 9 - Tue, Feb 16

8:30 pm - 12:15 pmMCO Orlando-BFS Belfast Intl

34h 45m1 stop London Gatwick

5:05 pm - 3:50 pmBFS Belfast Intl-MCO Orlando

26h 45m1 stop London Stansted

$626Multiple Airlines

Sun, Oct 11 - Tue, Oct 27

6:20 pm - 7:45 amJFK New York John F Kennedy Intl-BFS Belfast Intl

32h 25m1 stop London Gatwick

9:35 pm - 3:55 pmBFS Belfast Intl-JFK New York John F Kennedy Intl

23h 20m1 stop London Gatwick

$635Multiple Airlines

Sat, Oct 10 - Wed, Oct 21

6:20 pm - 7:45 amJFK New York John F Kennedy Intl-BFS Belfast Intl

32h 25m1 stop London Gatwick

9:35 pm - 3:55 pmBFS Belfast Intl-JFK New York John F Kennedy Intl

23h 20m1 stop London Gatwick

$638Multiple Airlines

Sat, Oct 10 - Wed, Oct 21

6:10 pm - 9:05 amJFK New York John F Kennedy Intl-BHD Belfast City

9h 55m1 stop London Heathrow

10:00 am - 4:00 pmBHD Belfast City-JFK New York John F Kennedy Intl

11h 00m1 stop London Heathrow

$964British Airways

Mon, Jan 11 - Tue, Jan 26

2:30 pm - 9:05 amJFK New York John F Kennedy Intl-BHD Belfast City

13h 35m2 stops Boston Logan Intl London Heathrow

3:05 pm - 10:25 pmBHD Belfast City-JFK New York John F Kennedy Intl

12h 20m1 stop London Heathrow

$969British Airways

Mon, Jan 11 - Tue, Jan 26

11:35 am - 10:50 amHOU Houston Hobby-BHD Belfast City

17h 15m2 stops Dallas/Fort Worth London Heathrow

11:40 am - 10:34 pmBHD Belfast City-HOU Houston Hobby

16h 54m2 stops London Heathrow Dallas/Fort Worth

$984American Airlines

Tue, Nov 10 - Tue, Nov 17

7:35 pm - 1:35 pmJFK New York John F Kennedy Intl-BHD Belfast City

13h 00m1 stop London Heathrow

10:05 am - 4:15 pmBHD Belfast City-JFK New York John F Kennedy Intl

11h 10m1 stop London Heathrow

$986British Airways

Wed, Sep 23 - Wed, Sep 30

6:10 pm - 6:10 pmJFK New York John F Kennedy Intl-BHD Belfast City

19h 00m1 stop London Heathrow

9:20 am - 9:00 pmBHD Belfast City-JFK New York John F Kennedy Intl

15h 40m1 stop London Heathrow

$1,110American Airlines

Fri, Oct 9 - Sun, Oct 25

8:18 pm - 6:45 pmHOU Houston Hobby-BHD Belfast City

16h 27m2 stops Dallas/Fort Worth London Heathrow

1:10 pm - 11:50 pmBHD Belfast City-HOU Houston Hobby

16h 40m2 stops London Heathrow Dallas/Fort Worth

$1,123American Airlines

Sun, Sep 20 - Sun, Sep 27

Recent last minute flight deals from the United States to Belfast

Enter your travel dates to find the best prices.

3:35 pm - 10:40 amBOS Boston Logan Intl-BFS Belfast Intl

14h 05m2 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle

6:15 am - 10:40 pmBFS Belfast Intl-BOS Boston Logan Intl

21h 25m3 stops Paris Charles de Gaulle Halifax Intl Toronto Pearson Intl

$1,025Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

3:35 pm - 10:40 amBOS Boston Logan Intl-BFS Belfast Intl

14h 05m2 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle

6:10 am - 10:40 pmBFS Belfast Intl-BOS Boston Logan Intl

21h 30m2 stops London Gatwick Toronto Pearson Intl

$1,053Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

8:05 pm - 9:45 amBOS Boston Logan Intl-BFS Belfast Intl

32h 40m2 stops Munich Franz Josef Strauss Barcelona-El Prat

9:35 am - 9:05 pmBFS Belfast Intl-BOS Boston Logan Intl

16h 30m1 stop Barcelona-El Prat

$1,098Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

6:20 pm - 9:55 amJFK New York John F Kennedy Intl-BFS Belfast Intl

10h 35m1 stop London Gatwick

6:05 am - 3:55 pmBFS Belfast Intl-JFK New York John F Kennedy Intl

14h 50m1 stop London Gatwick

$1,106Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

10:25 am - 4:30 pmEWR Newark-BFS Belfast Intl

25h 05m2 stops Montreal Pierre Elliott Trudeau Intl Edinburgh Turnhouse

10:15 pm - 5:57 pmBFS Belfast Intl-EWR Newark

24h 42m2 stops Edinburgh Turnhouse Montreal Pierre Elliott Trudeau Intl

$1,124Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

10:25 am - 3:00 pmEWR Newark-BHD Belfast City

23h 35m2 stops Montreal Pierre Elliott Trudeau Intl Edinburgh Turnhouse

7:00 am - 6:16 pmBHD Belfast City-EWR Newark

16h 16m2 stops Edinburgh Turnhouse Toronto Pearson Intl

$1,152Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

9:50 pm - 9:00 amJFK New York John F Kennedy Intl-BFS Belfast Intl

30h 10m2 stops Frankfurt am Main Edinburgh Turnhouse

6:05 am - 3:55 pmBFS Belfast Intl-JFK New York John F Kennedy Intl

14h 50m1 stop London Gatwick

$1,155Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

4:15 pm - 2:25 pmJFK New York John F Kennedy Intl-BFS Belfast Intl

17h 10m2 stops Zurich Paris Charles de Gaulle

6:35 pm - 1:35 pmBFS Belfast Intl-JFK New York John F Kennedy Intl

24h 00m2 stops Paris Charles de Gaulle Frankfurt am Main

$1,282Multiple Airlines

Fri, Aug 28 - Fri, Sep 4

5:50 pm - 8:50 amEWR Newark-BHD Belfast City

10h 00m1 stop London Heathrow

9:35 am - 9:14 pmBHD Belfast City-EWR Newark

16h 39m2 stops London Heathrow Chicago O'Hare Intl

$1,610British Airways

Fri, Aug 28 - Fri, Sep 4

5:06 pm - 8:35 pmJFK New York John F Kennedy Intl-BHD Belfast City

22h 29m2 stops Boston Logan Intl London Heathrow

9:50 am - 9:05 pmBHD Belfast City-JFK New York John F Kennedy Intl

16h 15m2 stops Glasgow Intl London Heathrow

$2,282British Airways

Fri, Aug 28 - Tue, Sep 1

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Delta flights from United States to Belfast

Our best Delta deals on United States to Belfast flight tickets

Delta

Dec 2

JFK7:30 amNew York John F Kennedy Intl

20h 40m

2 stops

BHD9:10 amBelfast City

Dec 14

BHD5:20 pmBelfast City

26h 40m

1 stop

JFK3:00 pmNew York John F Kennedy Intl

$1,022

Delta

Oct 12

JFK4:40 pmNew York John F Kennedy Intl

19h 15m

1 stop

BHD4:55 pmBelfast City

Oct 24

BHD5:30 pmBelfast City

23h 50m

1 stop

JFK12:20 pmNew York John F Kennedy Intl

$1,067

Delta

Oct 12

JFK7:10 pmNew York John F Kennedy Intl

16h 45m

1 stop

BHD4:55 pmBelfast City

Oct 24

BHD5:30 pmBelfast City

27h 30m

1 stop

JFK4:00 pmNew York John F Kennedy Intl

$1,068

Aer Lingus flights from United States to Belfast

Our best Aer Lingus deals on United States to Belfast flight tickets

Aer Lingus

Sep 20

JFK4:55 pmNew York John F Kennedy Intl

17h 00m

2 stops

BHD2:55 pmBelfast City

Sep 28

BHD9:50 amBelfast City

17h 35m

2 stops

JFK10:25 pmNew York John F Kennedy Intl

$930

Aer Lingus

Sep 14

JFK4:55 pmNew York John F Kennedy Intl

22h 55m

2 stops

BHD8:50 pmBelfast City

Sep 17

BHD7:00 amBelfast City

20h 25m

2 stops

JFK10:25 pmNew York John F Kennedy Intl

$1,073

Aer Lingus

Sep 14

EWR5:35 pmNewark

13h 20m

2 stops

BHD11:55 amBelfast City

Sep 21

BHD5:55 pmBelfast City

27h 10m

2 stops

EWR4:05 pmNewark

$1,080

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OrlandoBelfast

MCO Orlando - BFS Belfast Intl

MCOBFS

Orlando

Tue 2/9

4:50 pm-10:05 am

1 stop12h 15m

Belfast Intl

Tue 2/16

2:15 pm-2:50 pm

1 stop29h 35m

$599

OrlandoBelfast

MCO Orlando - BFS Belfast Intl

MCOBFS

Orlando

Sun 10/11

8:30 pm-12:15 pm

1 stop34h 45m

Belfast Intl

Tue 10/27

5:05 pm-3:50 pm

1 stop26h 45m

$626

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sat 10/10

6:20 pm-7:45 am

1 stop32h 25m

Belfast Intl

Wed 10/21

9:35 pm-3:55 pm

1 stop23h 20m

$635

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sat 10/10

6:20 pm-7:45 am

1 stop32h 25m

Belfast Intl

Wed 10/21

9:35 pm-3:55 pm

1 stop23h 20m

$638

Quickest round-trip

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Mon 1/11

6:10 pm-9:05 am

1 stop9h 55m

Belfast City

Tue 1/26

10:00 am-4:00 pm

1 stop11h 00m

$964

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Mon 1/11

2:30 pm-9:05 am

2 stops13h 35m

Belfast City

Tue 1/26

3:05 pm-10:25 pm

1 stop12h 20m

$969

HoustonBelfast

HOU Houston Hobby - BHD Belfast City

HOUBHD

Houston Hobby

Tue 11/10

11:35 am-10:50 am

2 stops17h 15m

Belfast City

Tue 11/17

11:40 am-10:34 pm

2 stops16h 54m

$984

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Wed 9/23

7:35 pm-1:35 pm

1 stop13h 00m

Belfast City

Wed 9/30

10:05 am-4:15 pm

1 stop11h 10m

$986

New YorkBelfast

JFK New York John F Kennedy Intl - BHD Belfast City

JFKBHD

New York John F Kennedy Intl

Fri 10/9

6:10 pm-6:10 pm

1 stop19h 00m

Belfast City

Sun 10/25

9:20 am-9:00 pm

1 stop15h 40m

$1,110

HoustonBelfast

HOU Houston Hobby - BHD Belfast City

HOUBHD

Houston Hobby

Sun 9/20

8:18 pm-6:45 pm

2 stops16h 27m

Belfast City

Sun 9/27

1:10 pm-11:50 pm

2 stops16h 40m

$1,123

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 United States to Belfast

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

Other information

What is the cheapest month to fly to Belfast?

In general, January is the cheapest month to fly from United States to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $603. If you don’t want to visit Belfast in January, then you should wait until March to fly from United States, when ticket prices are also cheap, with an average price of $670.

Cheap United States to Belfast flight deals and tips

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

Best Price Found	$226
Fastest flight time	10h 00m
Direct flights	None

The best one-way flight to Belfast from United States in the past 72 hours is $226. The best round-trip flight deal from United States to Belfast found on momondo in the last 72 hours is $599.

The fastest flight from United States to Belfast takes 10h 00m

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

Search flight deals

Frequently asked questions about flying from the United States to Belfast

When did momondo last update prices for flights from United States to Belfast?
Prices for flights from United States to Belfast refresh daily.
How many operators does momondo search for flights from United States to Belfast?
The number of operators available for flights from United States to Belfast is 2 as of August 2026.
How old do you have to be to fly from United States to Belfast?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Belfast.
What documentation or ID do you need to fly to Belfast?
The required travel and health documents for your Belfast trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from United States to Belfast

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $541	Free Cancellation	Rating 7.1 12,007 reviews	Search American Airlines flights
British Airways	PriceFrom $556	Free Cancellation	Rating 6.7 8,194 reviews	Search British Airways flights
Delta	PriceFrom $973	Free Cancellation	Rating 7.8 8,531 reviews	Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from United States.

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

Yes. All flights to Belfast from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Belfast from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from United States to Belfast now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Belfast and let you know when they change.

An easier way to manage your Belfast trip

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Cheap flights from the United States to Belfast from $226

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Belfast departing on 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from the United States to Belfast

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Big names and deals

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Delta flights from United States to Belfast

Our best Delta deals on United States to Belfast flight tickets

Aer Lingus flights from United States to Belfast

Our best Aer Lingus deals on United States to Belfast flight tickets

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How to get the cheapest flight ticket from United States to Belfast

What is the cheapest month to fly to Belfast?

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

What airlines fly to Belfast?

How long does it take to fly to Belfast?

Cheap United States to Belfast flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from the United States to Belfast

Best airlines flying from United States to Belfast

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

Why use momondo?

An easier way to manage your Belfast trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast

Fly your favorite airline to Belfast

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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According to popular flight searches on momondo this year