In terms of precipitation, rainfall in Belfast Intl Airport 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 Intl Airport when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast Intl Airport, 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 Intl Airport?

The most popular route from USA to Belfast Intl Airport is Boston Logan Intl - Belfast Intl. You may also consider New York John F Kennedy Intl - Belfast Intl or Newark - Belfast Intl.

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

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

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

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

How can I find direct flights from USA to Belfast Intl?

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

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

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

£169+ Cheap Flights from the United States to Belfast Intl Airport

Cheap flight deals from USA to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from USA to Belfast Intl
Explore the most affordable flight options available from USA to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Thu 22/1018:20 -

1 stop20h 00m

Thu 29/1020:05 -

1 stop24h 50m

Deal found 7/9£467

Sun 4/1019:05 -

1 stop12h 15m

Tue 20/1017:10 -

2 stops32h 55m

Deal found 5/9£468

Sat 24/1018:20 -

1 stop15h 15m

Sun 15/1107:50 -

2 stops37h 05m

Deal found 4/9£470

Thu 22/1020:30 -

1 stop31h 30m

Thu 29/1020:05 -

1 stop26h 10m

Deal found 7/9£471

Sun 27/920:30 -

1 stop34h 45m

Thu 8/1020:40 -

1 stop26h 45m

Deal found 5/9£478

Sat 24/1018:20 -

1 stop10h 35m

Thu 29/1020:05 -

1 stop24h 50m

Deal found 6/9£503

Wed 7/1020:30 -

1 stop30h 25m

Wed 14/1006:10 -

1 stop17h 15m

Deal found 7/9£510

Tue 13/1018:20 -

1 stop10h 35m

Tue 20/1008:20 -

1 stop12h 35m

Deal found 4/9£513

Sat 5/1218:05 -

1 stop15h 40m

Mon 7/1217:55 -

1 stop27h 00m

Deal found 5/9£522

Sat 3/1020:30 -

1 stop30h 15m

Sat 10/1006:20 -

1 stop17h 05m

Deal found 6/9£524

Fri 16/1018:20 -

1 stop14h 55m

Sun 18/1012:20 -

2 stops29h 00m

Deal found 4/9£524

Tue 6/1018:20 -

1 stop14h 40m

Sat 10/1006:20 -

1 stop14h 35m

Deal found 6/9£528

Best flights from USA to Belfast Intl
Discover carefully curated flight deals from USA to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Thu 22/1018:20 -

1 stop20h 00m

Thu 29/1020:05 -

1 stop24h 50m

Deal found 7/9£467

Sat 24/1018:20 -

1 stop15h 15m

Sun 15/1107:50 -

2 stops37h 05m

Deal found 4/9£470

Thu 22/1020:30 -

1 stop31h 30m

Thu 29/1020:05 -

1 stop26h 10m

Deal found 7/9£471

Sun 27/920:30 -

1 stop34h 45m

Thu 8/1020:40 -

1 stop26h 45m

Deal found 5/9£478

Wed 24/217:45 -

1 stop34h 25m

Tue 9/317:05 -

1 stop26h 20m

Deal found 7/9£499

Wed 7/1020:30 -

1 stop30h 25m

Wed 14/1006:10 -

1 stop17h 15m

Deal found 7/9£510

Sat 3/1020:30 -

1 stop30h 15m

Sat 10/1006:20 -

1 stop17h 05m

Deal found 6/9£524

Tue 13/1020:25 -

2 stops18h 15m

Tue 20/1020:15 -

3 stops29h 45m

Deal found 4/9£550

Sun 4/1020:25 -

2 stops19h 35m

Wed 7/1013:50 -

3 stops30h 40m

Deal found 4/9£561

Fri 9/1018:20 -

1 stop10h 35m

Mon 12/1020:55 -

1 stop24h 00m

Deal found 7/9£564

Sat 5/1218:05 -

1 stop9h 50m

Mon 7/1221:10 -

2 stops23h 45m

Deal found 5/9£573

Mon 26/1020:35 -

2 stops20h 40m

Sat 31/1008:10 -

2 stops15h 15m

Deal found 4/9£589

Fri 16/1017:25 -

2 stops22h 20m

Mon 19/1021:25 -

2 stops22h 30m

Deal found 4/9£590

Wed 25/1118:05 -

1 stop14h 45m

Sun 29/1109:25 -

1 stop11h 30m

Deal found 7/9£591

Tue 1/1219:40 -

2 stops20h 15m

Wed 9/1208:30 -

2 stops15h 00m

Deal found 7/9£596

Sun 18/1020:30 -

1 stop18h 45m

Sun 25/1009:25 -

1 stop12h 50m

Deal found 3/9£597

Tue 1/1219:40 -

2 stops20h 15m

Wed 9/1208:30 -

2 stops15h 10m

Deal found 7/9£599

Tue 13/1023:10 -

2 stops16h 55m

Tue 20/1008:20 -

2 stops18h 45m

Deal found 4/9£600

Wed 25/1119:50 -

3 stops15h 25m

Sun 29/1121:15 -

3 stops27h 40m

Deal found 7/9£602

Sun 25/1017:25 -

2 stops24h 00m

Fri 30/1006:30 -

1 stop14h 25m

Deal found 6/9£604

Mon 19/1017:45 -

3 stops24h 20m

Mon 26/1009:35 -

3 stops33h 50m

Deal found 4/9£610

Wed 2/1219:35 -

2 stops19h 10m

Wed 9/1207:40 -

2 stops15h 55m

Deal found 4/9£610

Wed 18/1122:05 -

2 stops18h 55m

Mon 30/1120:50 -

2 stops26h 00m

Deal found 5/9£611

Sun 18/1017:17 -

2 stops20h 08m

Mon 2/1106:00 -

2 stops17h 30m

Deal found 4/9£613

Thu 15/1017:50 -

2 stops23h 35m

Sun 18/1013:25 -

2 stops31h 10m

Deal found 5/9£613

Mon 19/1017:10 -

3 stops24h 55m

Mon 26/1009:35 -

2 stops35h 10m

Deal found 4/9£621

Sun 4/1018:20 -

1 stop10h 45m

Tue 6/1008:20 -

1 stop12h 35m

Deal found 5/9£621

Wed 23/916:00 -

2 stops18h 00m

Sat 26/906:20 -

2 stops20h 10m

Deal found 3/9£622

Wed 7/1017:25 -

2 stops20h 50m

Wed 14/1005:55 -

2 stops17h 55m

Deal found 7/9£624

Tue 20/1023:20 -

2 stops15h 20m

Tue 27/1008:35 -

2 stops15h 05m

Deal found 5/9£624

Find flight deals from USA to Belfast Intl

Round-trip from	£467
One-way from	£169
Popular in	September
Cheapest in	April
Average price	£1,153

22/10-29/10
2 total stops
44h 50m total
USA to Belfast

Search Deals

4/10-31/12
2 total stops
39h 20m total
USA to Belfast

Search Deals

Highest demand for flights based on searches. 29% potential increase in price (£206 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease (£37 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Mon 14/9

23:00-09:20

2 stops29h 20m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£183

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Sat 3/10

00:30-11:40

2 stops30h 10m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£209

Los AngelesBelfast

LAX Los Angeles - BFS Belfast Intl

LAXBFS

Los Angeles

Sat 3/10

17:20-21:55

3 stops44h 35m

Belfast Intl

Wed 31/12

00:00-15:00

Nonstop0h 00m

£226

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Thu 24/12

19:25-22:00

3 stops45h 35m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£231

New YorkBelfast

JFK New York John F Kennedy Intl - BFS Belfast Intl

JFKBFS

New York John F Kennedy Intl

Thu 24/9

21:25-18:55

1 stop16h 30m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£231

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Wed 4/11

19:40-16:15

2 stops15h 35m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£233

Washington, D.C.Belfast

IAD Washington, D.C. Dulles Intl - BFS Belfast Intl

IADBFS

Washington, D.C. Dulles Intl

Wed 4/11

19:40-16:15

2 stops15h 35m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£234

NewarkBelfast

EWR Newark - BFS Belfast Intl

EWRBFS

Newark

Wed 7/10

23:00-11:50

2 stops31h 50m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£235

BaltimoreBelfast

BWI Baltimore/Washington - BFS Belfast Intl

BWIBFS

Baltimore/Washington

Tue 3/11

19:40-09:00

2 stops32h 20m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£240

BostonBelfast

BOS Boston Logan Intl - BFS Belfast Intl

BOSBFS

Boston Logan Intl

Sun 20/9

23:35-09:30

2 stops52h 55m

Belfast Intl

Wed 31/12

00:00-18:00

Nonstop0h 00m

£250

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from USA to Belfast Intl

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

EWR-BFS

JFK-BFS

LAX-BFS

BWI-BFS

IAD-BFS

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 Intl Airport

US0-BFS

EWR-BFS

JFK-BFS

LAX-BFS

BWI-BFS

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

Currently, January is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £446). Flying from USA to Belfast Intl Airport in August is currently the most expensive (average of £967). 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.

Related info for your journey

What are the most popular routes from USA to Belfast Intl Airport?
The most popular route from USA to Belfast Intl Airport is Boston Logan Intl - Belfast Intl. You may also consider New York John F Kennedy Intl - Belfast Intl or Newark - Belfast Intl.
Can I find deals for flights from USA to Belfast Intl that include hotel bookings?
Yes. In addition to deals on USA to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from USA to Belfast Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Belfast Intl.
Can I find deals for business class flights from USA to Belfast Intl?
Yes. Cheapflights offers flight deals from USA to Belfast Intl 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 Intl Airport?
Currently, January is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £446). Flying from USA to Belfast Intl Airport in August is currently the most expensive (average of £967). 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

Armagh

Newry

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Alternative routes

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Complete your trip

Direct flights to Northern Ireland

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

Cheapflights makes it easy to find USA to Belfast Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from USA to Belfast Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from USA to Belfast Intl, users can toggle the no change fees filter when performing a flight search.

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

Of course! You can now track prices for flights from USA to Belfast Intl 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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Cheap flights from the United States to Belfast Intl Airport from £169

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from USA to Belfast Intl

Cheapest flights from USA to Belfast IntlExplore the most affordable flight options available from USA to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Explore the most affordable flight options available from USA to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Best flights from USA to Belfast IntlDiscover carefully curated flight deals from USA to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Discover carefully curated flight deals from USA to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Last-minute flights from USA to Belfast IntlDiscover last-minute flight deals from USA to Belfast Intl. Data last updated 8 September 2026 and is based on user searches.

Discover last-minute flight deals from USA to Belfast Intl. Data last updated 8 September 2026 and is based on user searches.

One-way flights from USA to Belfast IntlSearch for one-way flight options from USA to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Search for one-way flight options from USA to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.

Find flight deals from USA to Belfast Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from USA to Belfast Intl

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

Cheapflights Insights

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

Related info for your journey

What are the most popular routes from USA to Belfast Intl Airport?

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

How can I find direct flights from USA to Belfast Intl?

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

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

Travelling to a place near Belfast Intl Airport?

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 Intl

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

Other flights to Belfast Intl

Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 September 2026.

Complete your trip

Complete your trip to Belfast Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Northern Ireland

Book a non-stop flight to one of these other cities located in Northern Ireland.

Search flights from USA to Belfast Intl by cabin class

Find flights from USA to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

USA and Belfast Intl flights

Browse other USA and Belfast Intl flight options. Last updated on 8 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

USA to Belfast Intl flights

Consider these flights travelling from USA to Belfast Intl.

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

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

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

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

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Travel Smart

Cheapest flights from USA to Belfast Intl
Explore the most affordable flight options available from USA to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 September 2026.

Best flights from USA to Belfast Intl
Discover carefully curated flight deals from USA to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 September 2026.

Last-minute flights from USA to Belfast Intl
Discover last-minute flight deals from USA to Belfast Intl. Data last updated 8 September 2026 and is based on user searches.

One-way flights from USA to Belfast Intl
Search for one-way flight options from USA to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 8 September 2026.