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Cheap flights from Philadelphia to Northern Ireland from £299

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BFS
20 Dec — 27 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 20 November 2025.

Round-trip from

£472

One-way from

£299

Popular in

June

Cheapest in

January

Average price

£603
American Airlines
  • American Airlines
  • 3/2-9/2
  • 2 total stops
  • 41h 50m total
  • Philadelphia to Northern Ireland
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British Airways
  • British Airways
  • 4/1
  • 2 total stops
  • 19h 03m total
  • Philadelphia to Northern Ireland
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£135 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Philadelphia to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Philadelphia to Northern Ireland
Explore the most affordable flight options available from Philadelphia to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2025.

Sun 7/1219:51PHL - BHD
1 stop19h 24mAmerican Airlines
Sun 14/1206:30BHD - PHL
1 stop11h 35mAmerican Airlines
Deal found 19/11£510
Sun 7/1218:51PHL - BHD
2 stops14h 04mBritish Airways
Sun 14/1206:30BHD - PHL
2 stops16h 44mBritish Airways
Deal found 19/11£616
Sat 22/1119:55PHL - BHD
2 stops19h 35mBritish Airways
Mon 24/1109:15BHD - PHL
2 stops33h 55mBritish Airways
Deal found 18/11£768
Sat 22/1119:45PHL - BHD
1 stop10h 25mAmerican Airlines
Mon 24/1106:35BHD - PHL
1 stop11h 50mAmerican Airlines
Deal found 18/11£858
Mon 22/1218:57PHL - BHD
2 stops34h 33mBritish Airways
Wed 31/1206:35BHD - PHL
2 stops20h 18mBritish Airways
Deal found 18/11£896
Mon 22/1219:45PHL - BHD
1 stop31h 40mMultiple Airlines
Wed 31/1211:25BHD - PHL
1 stop30h 50mMultiple Airlines
Deal found 18/11£1,069
Sat 22/1117:30PHL - BFS
2 stops20h 20mMultiple Airlines
Mon 24/1106:55BFS - PHL
3 stops30h 58mMultiple Airlines
Deal found 18/11£1,087
Mon 22/1205:17PHL - BFS
3 stops32h 43mMultiple Airlines
Wed 31/1207:55BFS - PHL
3 stops20h 22mMultiple Airlines
Deal found 18/11£1,128

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 20 November 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

Tue 3/2

19:50-14:50

1 stop14h 00m

Belfast City

Mon 9/2

14:40-13:30

1 stop27h 50m

£472

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 31/3

18:45-10:35

1 stop10h 50m

Belfast City

Tue 7/4

16:25-16:40

1 stop29h 15m

£486

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 30/3

18:45-12:55

1 stop13h 10m

Belfast City

Mon 6/4

15:25-16:40

1 stop30h 15m

£486

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 30/3

18:45-12:55

1 stop13h 10m

Belfast City

Tue 7/4

09:35-16:40

1 stop12h 05m

£486

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 3/2

21:31-09:10

2 stops30h 39m

Belfast City

Mon 9/2

17:45-15:35

2 stops26h 50m

£492

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Mon 23/2

18:35-10:40

1 stop11h 05m

Belfast City

Fri 27/2

08:45-16:15

1 stop12h 30m

£494

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sun 29/3

18:35-14:40

2 stops15h 05m

Belfast City

Mon 6/4

19:30-16:40

1 stop26h 10m

£503

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Tue 28/4

18:45-13:00

1 stop13h 15m

Belfast City

Sat 9/5

09:35-16:40

1 stop12h 05m

£504

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Tue 3/2

07:50-20:15

3 stops31h 25m

Belfast Intl

Mon 9/2

19:20-14:47

3 stops24h 27m

£857

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Tue 13/1

16:35-18:50

3 stops21h 15m

Belfast Intl

Fri 23/1

18:00-14:47

3 stops25h 47m

£864

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 21 results
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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, January is the cheapest month in which you can book a flight from Philadelphia to Northern Ireland (average of £474). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of £767). 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 £486, American Airlines can have you in Northern Ireland from Philadelphia in 10h 50m. The distance between Philadelphia and Northern Ireland is about 3260 mi. This flight may include one or multiple stops.

  • 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, January is the cheapest month in which you can book a flight from Philadelphia to Northern Ireland (average of £474). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of £767). 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

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How does Cheapflights help users find flights from Philadelphia to Northern Ireland?

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Yes, we can. To see specific flights from Philadelphia to Northern Ireland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Not ready to book yet? You can track prices for flights from Philadelphia to Northern Ireland on Cheapflights with our Price Alert feature and get notified when better prices are available.

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