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Cheap flights from Philadelphia to Northern Ireland from £505

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BFS
13 Dec — 20 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 13 November 2025.

Round-trip from

£505

Popular in

June

Cheapest in

January

Average price

£602
British Airways
  • British Airways
  • 5/4-9/4
  • 2 total stops
  • 46h 20m total
  • Philadelphia to Northern Ireland
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£134 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Search Deals
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 13 November 2025.

Sun 7/1216:05PHL - BHD
2 stops13h 15mAmerican Airlines
Sun 14/1206:30BHD - PHL
1 stop11h 35mAmerican Airlines
Deal found 10/11£506
Sun 7/1217:30PHL - BHD
2 stops15h 25mAer Lingus
Wed 10/1218:50BHD - PHL
2 stops26h 10mAer Lingus
Deal found 12/11£653
Sun 7/1218:35PHL - BHD
1 stop10h 45mBritish Airways
Wed 10/1219:25BHD - PHL
1 stop25h 50mBritish Airways
Deal found 12/11£736
Sun 7/1215:30PHL - BFS
3 stops22h 25mMultiple Airlines
Wed 10/1207:55BFS - PHL
3 stops19h 51mMultiple Airlines
Deal found 12/11£928
Sun 7/1215:30PHL - BHD
3 stops20h 50mMultiple Airlines
Wed 10/1207:00BHD - PHL
3 stops20h 46mMultiple Airlines
Deal found 12/11£958
Sat 27/1217:30PHL - BFS
2 stops23h 40mMultiple Airlines
Sat 3/106:00BFS - PHL
2 stops22h 56mMultiple Airlines
Deal found 12/11£1,232

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 13 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

Sun 5/4

18:45-13:05

1 stop13h 20m

Belfast City

Thu 9/4

06:35-16:40

1 stop15h 05m

£505

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sun 7/12

16:05-10:20

2 stops13h 15m

Belfast City

Sun 14/12

06:30-13:05

1 stop11h 35m

£506

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

£513

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Thu 26/3

15:35-10:20

2 stops14h 45m

Belfast City

Tue 31/3

16:25-12:15

1 stop24h 50m

£513

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 27/3

15:35-10:30

2 stops14h 55m

Belfast City

Fri 3/4

09:30-15:30

1 stop11h 00m

£525

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sun 7/12

15:30-18:55

3 stops22h 25m

Belfast Intl

Wed 10/12

07:55-22:46

3 stops19h 51m

£928

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Thu 26/3

18:30-11:20

2 stops12h 50m

Belfast Intl

Tue 31/3

07:00-19:00

2 stops17h 00m

£1,104

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 27/12

17:30-22:10

2 stops23h 40m

Belfast Intl

Sat 3/1

06:00-23:56

2 stops22h 56m

£1,232

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sat 3/1

07:50-18:30

3 stops29h 40m

Belfast Intl

Sun 17/5

12:35-19:00

2 stops35h 25m

£1,244

Flights are sorted by cheapest return flights first.

Deals found on 10/11

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 £473). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of £765). 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 £505, British Airways can have you in Northern Ireland from Philadelphia in 13h 20m. 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 £473). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of £765). 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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Alternative routes for Philadelphia to Northern Ireland

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

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Millions of users choose and trust Cheapflights to book the best flight deals from Philadelphia to Northern Ireland 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 Philadelphia to Northern Ireland with no change fees?

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.

Can Cheapflights notify me if prices for flights from Philadelphia to Northern Ireland become cheaper?

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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