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

One-way options have recently been found by users for as low as £254 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £266 and Delta from £266 one-way.

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from USA to Belfast?

When deciding which route to take from USA to Belfast consider Rochester Greater Rochester Intl - Belfast Intl, New York John F Kennedy Intl - Belfast Intl or New York John F Kennedy Intl - Belfast City as they are the most popular.

What is the cheapest month to fly from USA to Belfast?

June is one of the best times of the year to fly to Belfast from USA. Prices for June average £673 per person but you can even find prices for as low as £485. The most expensive prices can be found in the month of October. Opting for a June flight can save you 53% on your journey compared to booking in October

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

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

How can I find direct flights from USA to Belfast?

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

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

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

£158+ Flights from the United States to Belfast

Cheap flight deals from USA to Belfast

Round-trip from	£339
One-way from	£158
Popular in	October
Cheapest in	June
Average price	£764

10/9-17/9
2 total stops
23h 15m total
USA to Belfast

Search Deals

8/9
2 total stops
26h 50m total
USA to Belfast

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£86 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find flight deals from USA to Belfast

Cheapest flights from USA to Belfast
Explore the most affordable flight options available from USA to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2025.

Wed 10/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Wed 17/908:15BFS - JFK

1 stop12h 40mMultiple Airlines

Deal found 27/7£339

Wed 15/1018:20JFK - BHD

1 stop20h 25mMultiple Airlines

Tue 4/1107:20BHD - JFK

1 stop13h 35mMultiple Airlines

Deal found 27/7£360

Wed 10/916:30LAX - BFS

1 stop31h 20mMultiple Airlines

Wed 17/906:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 27/7£376

Tue 7/1018:10JFK - BHD

1 stop11h 25mBritish Airways

Fri 17/1014:00BHD - JFK

1 stop12h 00mBritish Airways

Deal found 27/7£388

Wed 15/1021:25EWR - BHD

1 stop13h 10mBritish Airways

Tue 4/1111:25BHD - EWR

1 stop13h 10mBritish Airways

Deal found 27/7£401

Mon 15/917:35EWR - BFS

2 stops20h 10mMultiple Airlines

Wed 17/921:05BFS - EWR

2 stops28h 55mMultiple Airlines

Deal found 27/7£407

Mon 25/800:50JFK - BHD

1 stop15h 25mKLM

Tue 2/917:25BHD - JFK

1 stop23h 55mKLM

Deal found 27/7£418

Sun 3/800:50JFK - BHD

1 stop11h 05mDelta

Tue 12/806:30BHD - JFK

1 stop13h 55mDelta

Deal found 28/7£437

Fri 12/908:10EWR - BHD

2 stops27h 45mDelta

Tue 16/906:30BHD - EWR

2 stops30h 00mDelta

Deal found 26/7£467

Mon 13/1020:05LAX - BHD

1 stop13h 25mBritish Airways

Fri 24/1014:00BHD - LAX

1 stop14h 15mBritish Airways

Deal found 28/7£473

Tue 9/919:25ORD - BFS

2 stops13h 35mMultiple Airlines

Tue 16/907:05BFS - ORD

2 stops17h 10mMultiple Airlines

Deal found 26/7£484

Wed 20/816:30LAX - BHD

1 stop19h 10mMultiple Airlines

Thu 28/807:05BHD - LAX

1 stop14h 55mMultiple Airlines

Deal found 27/7£487

Best flights from USA to Belfast
Discover carefully curated flight deals from USA to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 July 2025.

Wed 10/918:20JFK - BFS

1 stop10h 35mMultiple Airlines

Wed 17/908:15BFS - JFK

1 stop12h 40mMultiple Airlines

Deal found 27/7£339

Tue 7/1018:10JFK - BHD

1 stop11h 25mBritish Airways

Fri 17/1014:00BHD - JFK

1 stop12h 00mBritish Airways

Deal found 27/7£388

Mon 25/800:50JFK - BHD

1 stop15h 25mKLM

Tue 2/917:25BHD - JFK

1 stop23h 55mKLM

Deal found 27/7£418

Mon 15/900:50JFK - BHD

1 stop15h 25mDelta

Tue 23/906:30BHD - JFK

2 stops18h 00mDelta

Deal found 25/7£444

Tue 9/913:25LAX - BHD

1 stop15h 35mAmerican Airlines

Fri 19/906:35BHD - LAX

2 stops18h 54mAmerican Airlines

Deal found 28/7£498

Fri 17/1017:53ROC - BHD

2 stops18h 02mVirgin Atlantic

Tue 21/1006:30BHD - ROC

2 stops21h 17mVirgin Atlantic

Deal found 27/7£627

Wed 15/1018:20JFK - BHD

1 stop20h 25mMultiple Airlines

Tue 4/1107:20BHD - JFK

1 stop13h 35mMultiple Airlines

Deal found 27/7£360

Wed 15/1021:25EWR - BHD

1 stop13h 10mBritish Airways

Tue 4/1111:25BHD - EWR

1 stop13h 10mBritish Airways

Deal found 27/7£401

Wed 10/916:30LAX - BFS

1 stop31h 20mMultiple Airlines

Wed 17/906:10BFS - LAX

1 stop16h 00mMultiple Airlines

Deal found 27/7£376

Fri 12/908:10EWR - BHD

2 stops27h 45mDelta

Tue 16/906:30BHD - EWR

2 stops30h 00mDelta

Deal found 26/7£467

Mon 15/917:35EWR - BFS

2 stops20h 10mMultiple Airlines

Wed 17/921:05BFS - EWR

2 stops28h 55mMultiple Airlines

Deal found 27/7£407

Mon 13/1020:05LAX - BHD

1 stop13h 25mBritish Airways

Fri 24/1014:00BHD - LAX

1 stop14h 15mBritish Airways

Deal found 28/7£473

Last-minute flights from USA to Belfast
Discover last-minute flight deals from USA to Belfast. Data last updated 28 July 2025 and is based on user searches.

Sun 3/800:50JFK - BHD

1 stop11h 05mDelta

Tue 12/806:30BHD - JFK

1 stop13h 55mDelta

Deal found 28/7£437

Mon 4/818:10JFK - BHD

1 stop10h 10mBritish Airways

Tue 12/809:35BHD - JFK

1 stop15h 20mBritish Airways

Deal found 27/7£420

Mon 4/817:59EWR - BHD

2 stops17h 56mDelta

Tue 12/806:30BHD - EWR

2 stops16h 30mDelta

Deal found 28/7£496

Mon 4/818:20JFK - BFS

1 stop10h 35mMultiple Airlines

Sun 17/818:00BFS - JFK

1 stop33h 15mMultiple Airlines

Deal found 27/7£687

Mon 4/820:10EWR - BFS

1 stop20h 45mMultiple Airlines

Sun 17/816:55BFS - EWR

1 stop24h 25mMultiple Airlines

Deal found 27/7£770

Mon 4/809:00JFK - BHD

3 stops30h 50mMultiple Airlines

Sun 17/807:30BHD - JFK

3 stops35h 50mMultiple Airlines

Deal found 27/7£775

Mon 4/819:29EWR - BHD

2 stops15h 11mBritish Airways

Tue 12/806:35BHD - EWR

1 stop12h 20mBritish Airways

Deal found 26/7£827

Mon 4/820:10EWR - BHD

1 stop20h 00mMultiple Airlines

Sun 17/818:50BHD - EWR

1 stop22h 30mMultiple Airlines

Deal found 27/7£851

Wed 13/813:45EWR - BFS

2 stops23h 50mMultiple Airlines

Tue 19/805:55BFS - EWR

2 stops32h 48mMultiple Airlines

Deal found 26/7£493

Wed 13/816:40LGA - BFS

2 stops20h 55mMultiple Airlines

Tue 19/805:55BFS - LGA

2 stops18h 36mMultiple Airlines

Deal found 26/7£493

Tue 19/818:20JFK - BFS

1 stop10h 35mMultiple Airlines

Thu 11/906:10BFS - JFK

1 stop14h 45mMultiple Airlines

Deal found 28/7£374

Tue 19/817:55EWR - BHD

1 stop10h 05mBritish Airways

Thu 11/919:25BHD - EWR

2 stops32h 34mBritish Airways

Deal found 28/7£490

One-way flights from USA to Belfast
Search for one-way flight options from USA to Belfast. Find affordable one-way fares based on user searches. Data last updated 28 July 2025.

Mon 8/923:00EWR - BFS

2 stops26h 50mMultiple Airlines

Deal found 27/7£158

Thu 11/918:20JFK - BFS

1 stop21h 15mMultiple Airlines

Deal found 27/7£170

Mon 8/923:00EWR - BHD

2 stops28h 35mMultiple Airlines

Deal found 27/7£173

Fri 19/918:20JFK - BHD

1 stop21h 05mMultiple Airlines

Deal found 26/7£176

Sun 5/1016:40LAX - BFS

2 stops22h 30mMultiple Airlines

Deal found 27/7£176

Sun 5/1016:30LAX - BHD

1 stop19h 55mMultiple Airlines

Deal found 27/7£188

Sat 20/919:57LGA - BFS

2 stops44h 33mMultiple Airlines

Deal found 26/7£197

Mon 5/119:05JFK - BHD

1 stop13h 45mAer Lingus

Deal found 27/7£254

Mon 5/121:35EWR - BHD

1 stop11h 40mBritish Airways

Deal found 27/7£266

Mon 5/115:00EWR - BHD

2 stops20h 50mDelta

Deal found 28/7£266

Mon 5/113:10JFK - BHD

2 stops16h 30mBritish Airways

Deal found 27/7£269

Fri 19/900:50JFK - BHD

1 stop15h 25mVirgin Atlantic

Deal found 26/7£324

Fly from

Fly to

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Wed 10/9

18:20-09:55

1 stop10h 35m

Belfast Intl

Wed 17/9

08:15-15:55

1 stop12h 40m

£339

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Wed 15/10

18:20-19:45

1 stop20h 25m

Belfast City

Tue 4/11

07:20-15:55

1 stop13h 35m

£360

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Wed 10/9

16:30-07:50

1 stop31h 20m

Belfast Intl

Wed 17/9

06:10-14:10

1 stop16h 00m

£376

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Tue 7/10

18:10-10:35

1 stop11h 25m

Belfast City

Fri 17/10

14:00-21:00

1 stop12h 00m

£388

NewarkBelfast

EWR - BHD

EWRBHD

Newark

Wed 15/10

21:25-15:35

1 stop13h 10m

Belfast City

Tue 4/11

11:25-19:35

1 stop13h 10m

£401

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Mon 15/9

17:35-18:45

2 stops20h 10m

Belfast Intl

Wed 17/9

21:05-21:00

2 stops28h 55m

£407

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Mon 25/8

00:50-21:15

1 stop15h 25m

Belfast City

Tue 2/9

17:25-12:20

1 stop23h 55m

£418

New YorkBelfast

JFK - BHD

JFKBHD

New York John F Kennedy Intl

Mon 15/9

00:50-21:15

1 stop15h 25m

Belfast City

Tue 23/9

06:30-19:30

2 stops18h 00m

£444

NewarkBelfast

EWR - BHD

EWRBHD

Newark

Fri 12/9

08:10-16:55

2 stops27h 45m

Belfast City

Tue 16/9

06:30-07:30

2 stops30h 00m

£467

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Mon 13/10

20:05-17:30

1 stop13h 25m

Belfast City

Fri 24/10

14:00-20:15

1 stop14h 15m

£473

Flights are sorted by cheapest return flights first.

Deals found on 27/7

Showing 1-10 of 35 results

Best time to book a flight from USA to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from USA 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 the United States to Belfast

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

Currently, January is the cheapest month in which you can book a flight from USA to Belfast (average of £67). Flying from USA to Belfast in July is currently the most expensive (average of £90). 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 US to BFS?

When flying from USA to Belfast, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown with Delta, KLM, andVirgin Atlantic from the United States to Belfast. 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

7,975 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,975 reviews

Delta

8.0

Very Good

7,975 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very Good

7,975 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

655 reviews

Delta

8.0

Very Good

7,975 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,975 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Aer Lingus

7.1

Good

1,189 reviews

Delta

8.0

Very Good

7,975 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from USA to Belfast one-way?
One-way options have recently been found by users for as low as £254 on Aer Lingus. Other airlines that offer cheap prices include British Airways from £266 and Delta from £266 one-way.
What are the most popular routes from USA to Belfast?
When deciding which route to take from USA to Belfast consider Rochester Greater Rochester Intl - Belfast Intl, New York John F Kennedy Intl - Belfast Intl or New York John F Kennedy Intl - Belfast City as they are the most popular.
Can I find deals for flights from USA to Belfast that include hotel bookings?
Yes. In addition to deals on USA to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from USA to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Belfast.
Can I find deals for business class flights from USA to Belfast?
Yes. Cheapflights offers flight deals from USA to Belfast 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 USA to Belfast?
Currently, January is the cheapest month in which you can book a flight from USA to Belfast (average of £67). Flying from USA to Belfast in July is currently the most expensive (average of £90). 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

Alternative routes for USA to Belfast

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Fly with Cheapflights

How does Cheapflights help users find flights from USA to Belfast?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from USA to Belfast. 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 USA to Belfast?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from USA to Belfast for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Belfast from USA shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from USA to Belfast and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price 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 the United States to Belfast from £158

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from USA to Belfast

Keep the following information in mind while searching for USA to Belfast flight deals. Data was last updated 28 July 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from USA to Belfast

Cheapest flights from USA to BelfastExplore the most affordable flight options available from USA to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2025.

Explore the most affordable flight options available from USA to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2025.

Cheapflights Fare Finder

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

Best time to book a flight from USA to Belfast

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

Cheapflights Insights

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

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

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

Find hourly flight availability from USA to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 July 2025.

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown with Delta, KLM, andVirgin Atlantic from the United States to Belfast. 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 USA to Belfast. 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 USA to Belfast one-way?

What are the most popular routes from USA to Belfast?

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

How can I find direct flights from USA to Belfast?

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

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

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 USA to Belfast

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

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 USA to Belfast?

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from USA to Belfast
Explore the most affordable flight options available from USA to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 July 2025.