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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 23/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — BFS
10 Apr — 17 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Belfast Intl

Enter your travel dates to find the best prices.

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 11 March 2026.

Thu 23/418:20
JFK
-
BFS
1 stop21h 15m
Multiple Airlines
Thu 30/406:10
BFS
-
JFK
1 stop14h 45m
Multiple Airlines
Deal found 9/3£447
Sat 25/423:00
BOS
-
BFS
2 stops18h 40m
Multiple Airlines
Thu 30/406:10
BFS
-
BOS
2 stops20h 35m
Multiple Airlines
Deal found 10/3£462
Sat 25/418:20
JFK
-
BFS
1 stop32h 25m
Multiple Airlines
Sat 2/506:20
BFS
-
JFK
1 stop14h 35m
Multiple Airlines
Deal found 10/3£464
Sat 21/302:35
EWR
-
BFS
2 stops35h 50m
Multiple Airlines
Thu 26/309:55
BFS
-
EWR
1 stop15h 05m
Multiple Airlines
Deal found 6/3£466
Mon 13/423:00
EWR
-
BFS
1 stop30h 40m
Multiple Airlines
Tue 28/420:15
BFS
-
EWR
2 stops29h 45m
Multiple Airlines
Deal found 6/3£467
Mon 4/520:50
BOS
-
BFS
2 stops18h 50m
Multiple Airlines
Wed 13/507:35
BFS
-
BOS
2 stops16h 15m
Multiple Airlines
Deal found 7/3£481
Mon 13/423:25
JFK
-
BFS
2 stops28h 55m
Multiple Airlines
Tue 28/406:45
BFS
-
JFK
1 stop14h 10m
Multiple Airlines
Deal found 9/3£481
Sun 12/423:25
JFK
-
BFS
2 stops53h 05m
Multiple Airlines
Mon 27/418:50
BFS
-
JFK
1 stop26h 05m
Multiple Airlines
Deal found 9/3£487
Wed 8/423:10
JFK
-
BFS
2 stops12h 55m
Multiple Airlines
Wed 15/415:40
BFS
-
JFK
3 stops35h 50m
Multiple Airlines
Deal found 9/3£492
Thu 23/423:00
BOS
-
BFS
2 stops16h 35m
Multiple Airlines
Thu 30/406:10
BFS
-
BOS
2 stops20h 35m
Multiple Airlines
Deal found 9/3£501
Mon 30/318:20
JFK
-
BFS
1 stop13h 00m
Multiple Airlines
Tue 7/413:15
BFS
-
JFK
2 stops48h 35m
Multiple Airlines
Deal found 8/3£504
Tue 22/918:20
JFK
-
BFS
1 stop14h 40m
Multiple Airlines
Tue 6/1006:15
BFS
-
JFK
1 stop14h 40m
Multiple Airlines
Deal found 6/3£504

Find 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 11 March 2026.

Round-trip from

£447

One-way from

£186

Popular in

April

Cheapest in

November

Average price

£697
23/4-30/4
  • 23/4-30/4
  • 2 total stops
  • 36h 00m total
  • USA to Belfast
Search Deals
23/4
  • 23/4
  • 3 total stops
  • 34h 15m total
  • USA to Belfast
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£88 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 11 March 2026.
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

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 25/4

23:00-22:40

2 stops18h 40m

Belfast Intl

Thu 30/4

06:10-21:45

2 stops20h 35m

£462

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Mon 13/4

23:00-10:40

1 stop30h 40m

Belfast Intl

Tue 28/4

20:15-21:00

2 stops29h 45m

£467

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Sat 21/3

02:35-18:25

3 stops35h 50m

Belfast Intl

Thu 26/3

09:55-21:00

1 stop15h 05m

£481

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Mon 13/4

23:25-09:30

2 stops29h 05m

Belfast Intl

Tue 28/4

06:45-15:55

1 stop14h 10m

£492

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 23/4

23:00-20:35

2 stops16h 35m

Belfast Intl

Thu 30/4

06:10-21:45

2 stops20h 35m

£501

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 27/4

23:10-16:15

1 stop12h 05m

Belfast Intl

Tue 12/5

08:45-21:05

2 stops17h 20m

£513

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Wed 6/5

20:30-22:20

3 stops20h 50m

Belfast Intl

Wed 13/5

08:30-20:35

3 stops41h 05m

£519

NewarkBelfast

EWR - BFS

EWRBFS

Newark

Wed 8/4

20:25-17:05

2 stops15h 40m

Belfast Intl

Wed 15/4

07:20-19:15

2 stops16h 55m

£522

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Wed 22/4

20:30-22:20

3 stops20h 50m

Belfast Intl

Wed 29/4

20:15-19:25

3 stops28h 10m

£524

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 3/4

18:20-14:15

1 stop14h 55m

Belfast Intl

Fri 10/4

09:05-17:30

3 stops37h 25m

£528

Flights are sorted by cheapest return flights first.

Deals found on 9/3

Showing 1-10 of 60 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £391). Flying from USA to Belfast Intl Airport in November is currently the most expensive (average of £516). 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

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?

    The most popular route from USA to Belfast Intl Airport is New York John F Kennedy Intl - Belfast Intl. You may also consider Newark - Belfast Intl or New York LaGuardia - 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, March is the cheapest month in which you can book a flight from USA to Belfast Intl Airport (average of £391). Flying from USA to Belfast Intl Airport in November is currently the most expensive (average of £516). 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 Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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

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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.

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

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