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Cheap flights from the United States to Belfast Intl Airport from £186

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
5 May — 12 May1
1 adult

Cheap flight deals from USA to Belfast Intl

Keep the following information in mind while searching for USA to Belfast Intl flight deals. Data was last updated 30 April 2025.

Round-trip from

£449

One-way from

£186

Popular in

October

Cheapest in

December

Average price

£557
29/5-12/6
  • 29/5-12/6
  • 2 total stops
  • 50h 35m total
  • USA to Belfast
7/7
  • 7/7
  • 1 total stop
  • 11h 40m total
  • USA to Belfast
Highest demand for flights based on searches. 7% potential increase in price (£42 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from USA to Belfast Intl

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 30 April 2025.

Mon 5/519:15BOS - BFS
2 stops13h 35mMultiple Airlines
Tue 13/506:45BFS - BOS
2 stops16h 05mMultiple Airlines
Deal found 28/4£424
Thu 29/518:20JFK - BFS
1 stop18h 55mMultiple Airlines
Thu 12/619:35BFS - JFK
1 stop31h 40mMultiple Airlines
Deal found 29/4£449
Sat 17/517:20MIA - BFS
1 stop33h 25mMultiple Airlines
Wed 21/506:10BFS - MIA
1 stop13h 10mMultiple Airlines
Deal found 29/4£515
Wed 21/515:05EWR - BFS
2 stops20h 35mMultiple Airlines
Mon 26/515:30BFS - EWR
1 stop34h 30mMultiple Airlines
Deal found 29/4£549
Tue 10/608:22IAD - BFS
2 stops27h 18mMultiple Airlines
Tue 17/605:55BFS - IAD
3 stops20h 09mMultiple Airlines
Deal found 29/4£558
Tue 6/520:30MCO - BFS
1 stop29h 55mMultiple Airlines
Tue 13/506:15BFS - MCO
1 stop17h 10mMultiple Airlines
Deal found 30/4£570
Sat 14/610:00ORD - BFS
3 stops19h 00mMultiple Airlines
Mon 16/606:10BFS - ORD
2 stops21h 46mMultiple Airlines
Deal found 30/4£598
Thu 29/518:50BWI - BFS
2 stops23h 35mMultiple Airlines
Thu 5/606:35BFS - BWI
2 stops16h 05mMultiple Airlines
Deal found 29/4£602
Wed 11/607:05SEA - BFS
2 stops27h 30mMultiple Airlines
Wed 18/617:05BFS - SEA
3 stops37h 11mMultiple Airlines
Deal found 29/4£629
Thu 12/616:30LAX - BFS
1 stop20h 05mMultiple Airlines
Mon 16/606:10BFS - LAX
1 stop15h 50mMultiple Airlines
Deal found 29/4£697

Cheapflights Fare Finder

Customise your flight search to find flights from USA to Belfast Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from the United States to Belfast Intl Airport that are best for you.

Fly from

USA

Fly to

Belfast Intl

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Thu 29/5

18:20-18:15

1 stop18h 55m

Belfast Intl

Thu 12/6

19:35-22:15

1 stop31h 40m

£449

MiamiBelfast

MIA - BFS

MIABFS

Miami

Sat 17/5

17:20-07:45

1 stop33h 25m

Belfast Intl

Wed 21/5

06:10-14:20

1 stop13h 10m

£498

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Wed 21/5

15:05-16:40

2 stops20h 35m

Belfast Intl

Mon 26/5

15:30-21:00

1 stop34h 30m

£549

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 10/6

08:22-16:40

2 stops27h 18m

Belfast Intl

Tue 17/6

05:55-21:04

3 stops20h 09m

£558

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 12/6

08:45-16:15

3 stops26h 30m

Belfast Intl

Thu 19/6

06:10-07:12

3 stops30h 02m

£590

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 14/6

10:00-11:00

3 stops19h 00m

Belfast Intl

Mon 16/6

06:10-21:56

2 stops21h 46m

£598

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Thu 29/5

18:50-23:25

2 stops23h 35m

Belfast Intl

Thu 5/6

06:35-17:40

2 stops16h 05m

£602

SeattleBelfast

SEA - BFS

SEABFS

Seattle/Tacoma Intl

Wed 11/6

07:05-18:35

2 stops27h 30m

Belfast Intl

Wed 18/6

17:05-22:16

3 stops37h 11m

£629

Los AngelesBelfast

LAX - BFS

LAXBFS

Los Angeles

Thu 12/6

16:30-20:35

1 stop20h 05m

Belfast Intl

Mon 16/6

06:10-14:00

1 stop15h 50m

£697

OrlandoBelfast

MCO - BFS

MCOBFS

Orlando

Fri 13/6

06:30-20:05

3 stops32h 35m

Belfast Intl

Fri 20/6

08:35-10:09

2 stops30h 34m

£709

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 16 results
1
2

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.
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

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 £67). Flying from USA to Belfast Intl Airport 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?

Find hourly flight availability from USA to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

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.

Rainfall in Belfast Intl by month

Plan your trip to Belfast Intl by taking into account the average rainfall totals by month.

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.

Temperature in Belfast Intl by month

Plan your trip to Belfast Intl by taking into account the average temperature totals by month.

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).

Related info for your journey

Find useful and relevant information for your journey from USA to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • 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?

    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 £67). Flying from USA to Belfast Intl Airport 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

Travelling to a place near the United States?

Book flights to the United States if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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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.

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