Cheap flights from Philadelphia to Northern Ireland from £347

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BFS
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Philadelphia to Northern Ireland

Keep the following information in mind while searching for Philadelphia to Northern Ireland flight deals. Data was last updated 30 October 2025.

Round-trip from

£509

One-way from

£243

Popular in

June

Cheapest in

January

Average price

£525
American Airlines
  • American Airlines
  • 27/3-31/3
  • 2 total stops
  • 38h 20m total
  • Philadelphia to Northern Ireland
4/2
  • 4/2
  • 2 total stops
  • 36h 35m total
  • Philadelphia to Northern Ireland
Highest demand for flights based on searches. 21% potential increase in price (£133 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in October 2025

Find flight deals from Philadelphia to Northern Ireland

Enter your travel dates to find the best prices.

Best flights from Philadelphia to Northern Ireland
Discover carefully curated flight deals from Philadelphia to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2025.

Fri 27/320:45PHL - BHD
1 stop13h 30mAmerican Airlines
Fri 3/406:35BHD - PHL
1 stop13h 55mAmerican Airlines
Deal found 28/10£520
Sat 4/413:35PHL - BHD
2 stops20h 30mBritish Airways
Fri 10/420:05BHD - PHL
2 stops27h 50mBritish Airways
Deal found 28/10£580
Fri 27/311:30PHL - BHD
2 stops25h 20mDelta
Tue 31/306:30BHD - PHL
2 stops15h 46mDelta
Deal found 27/10£635
Sat 4/419:40PHL - BHD
1 stop11h 35mAmerican Airlines
Fri 10/416:20BHD - PHL
1 stop24h 55mAmerican Airlines
Deal found 28/10£558
Fri 27/319:35PHL - BHD
1 stop10h 55mBritish Airways
Tue 31/313:40BHD - PHL
1 stop32h 00mBritish Airways
Deal found 28/10£609
Fri 27/318:00PHL - BHD
2 stops16h 15mAmerican Airlines
Tue 31/306:35BHD - PHL
1 stop13h 55mAmerican Airlines
Deal found 27/10£663

Cheapflights Fare Finder

 
Customise your flight search to find flights from Philadelphia to Northern Ireland 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 October 2025.
Use the filters below to find and compare flights from Philadelphia to Northern Ireland that are best for you.

Fly from

Philadelphia

Fly to

Northern Ireland

Route

Depart

Return

Price

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 27/3

20:45-14:15

1 stop13h 30m

Belfast City

Fri 3/4

06:35-15:30

1 stop13h 55m

£520

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sat 4/4

19:40-12:15

1 stop11h 35m

Belfast City

Fri 10/4

16:20-12:15

1 stop24h 55m

£558

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sat 4/4

13:35-15:05

2 stops20h 30m

Belfast City

Fri 10/4

20:05-18:55

2 stops27h 50m

£580

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 27/3

19:35-10:30

1 stop10h 55m

Belfast City

Tue 31/3

13:40-16:40

1 stop32h 00m

£609

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 27/3

11:30-16:50

2 stops25h 20m

Belfast City

Tue 31/3

06:30-17:16

2 stops15h 46m

£635

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 27/3

18:00-14:15

2 stops16h 15m

Belfast City

Tue 31/3

06:35-15:30

1 stop13h 55m

£663

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Wed 4/2

14:30-20:20

2 stops24h 50m

£347

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Best time to book a flight from Philadelphia to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Philadelphia 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 Philadelphia to Northern Ireland

What is the cheapest month to book a flight from Philadelphia to Northern Ireland?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Northern Ireland (average of £466). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of £760). 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 Philadelphia to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Philadelphia to Northern Ireland?

    For a flight from Philadelphia to Northern Ireland, you will be flying from Philadelphia. Philadelphia (PHL) is just 7.0 mi from the center of the city.

  • How long is the flight from Philadelphia to Northern Ireland?

    For as low as £520, American Airlines can have you in Northern Ireland from Philadelphia in 13h 30m. The distance between Philadelphia and Northern Ireland is about 3260 mi.

  • Can I find deals for flights from Philadelphia to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Northern Ireland?

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

  • Can I find deals for business class flights from Philadelphia to Northern Ireland?

    Yes. Cheapflights offers flight deals from Philadelphia to Northern Ireland 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 Philadelphia to Northern Ireland?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Northern Ireland (average of £466). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of £760). 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.

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Alternative routes for Philadelphia to Northern Ireland

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