HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Northern Ireland

$618+ Cheap flights from Philadelphia (PHL) to Northern Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BFS
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Northern Ireland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Philadelphia to Northern Ireland

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 October 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/192:58 pmPHL - BHD
2 stops14h 17mAmerican Airlines
Tue 11/256:35 amBHD - PHL
1 stop11h 50mAmerican Airlines
Deal found 10/15$618
This Finnair deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:45 pmPHL - BHD
1 stop13h 30mMultiple Airlines
Tue 11/2511:25 amBHD - PHL
2 stops15h 37mMultiple Airlines
Deal found 10/16$621
This KLM deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:18 pmPHL - BHD
2 stops18h 32mKLM
Wed 11/56:30 amBHD - PHL
2 stops18h 17mKLM
Deal found 10/16$649
This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:45 pmPHL - BHD
1 stop13h 10mAmerican Airlines
Sun 11/236:30 amBHD - PHL
2 stops18h 04mAmerican Airlines
Deal found 10/16$673
This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:45 pmPHL - BHD
1 stop13h 30mAmerican Airlines
Tue 11/258:45 amBHD - PHL
1 stop33h 40mAmerican Airlines
Deal found 10/16$703
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/193:30 pmPHL - BFS
2 stops17h 35mMultiple Airlines
Tue 11/255:30 pmBFS - PHL
3 stops26h 17mMultiple Airlines
Deal found 10/15$803
This Ovago deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:30 pmPHL - BHD
2 stops36h 30mBritish Airways
Wed 11/55:40 pmBHD - PHL
1 stop24h 45mBritish Airways
Deal found 10/16$875
This British Airways deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:55 pmPHL - BHD
2 stops31h 35mBritish Airways
Thu 1/85:45 pmBHD - PHL
2 stops25h 20mBritish Airways
Deal found 10/16$883
This Mytrip deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/163:30 pmPHL - BFS
3 stops22h 25mMultiple Airlines
Sun 11/237:55 amBFS - PHL
3 stops29h 58mMultiple Airlines
Deal found 10/16$956
This Mytrip deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:20 amPHL - BFS
3 stops28h 35mMultiple Airlines
Sun 12/77:10 amBFS - PHL
3 stops37h 50mMultiple Airlines
Deal found 10/16$1,042
This Mytrip deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:30 pmPHL - BFS
2 stops20h 50mMultiple Airlines
Wed 11/52:15 pmBFS - PHL
3 stops34h 41mMultiple Airlines
Deal found 10/16$1,160
This Mytrip deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:35 pmPHL - BFS
3 stops25h 30mMultiple Airlines
Fri 10/246:05 amBFS - PHL
3 stops33h 30mMultiple Airlines
Deal found 10/16$1,355

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 October 16, 2025.

Round-trip from

$618
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$694
From Philadelphia to Northern Ireland
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($209 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated October 16, 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

Mon 11/10

7:45 pm-2:15 pm

1 stop13h 30m

Belfast City

Tue 11/25

11:25 am-10:02 pm

2 stops15h 37m

$621

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Wed 1/7

3:35 pm-9:10 am

2 stops12h 35m

Belfast City

Mon 1/12

2:40 pm-4:15 pm

1 stop30h 35m

$642

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sun 11/16

7:45 pm-1:55 pm

1 stop13h 10m

Belfast City

Sun 11/23

6:30 am-7:34 pm

2 stops18h 04m

$673

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 4/3

10:20 pm-3:30 pm

1 stop12h 10m

Belfast City

Thu 4/9

9:35 am-3:30 pm

1 stop10h 55m

$688

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 3/27

8:45 pm-2:15 pm

1 stop13h 30m

Belfast City

Fri 4/3

6:35 am-3:30 pm

1 stop13h 55m

$689

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Sat 4/4

6:35 pm-12:15 pm

2 stops12h 40m

Belfast City

Fri 4/10

8:05 pm-6:55 pm

2 stops27h 50m

$767

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Wed 11/19

3:30 pm-2:05 pm

2 stops17h 35m

Belfast Intl

Tue 11/25

5:30 pm-2:47 pm

3 stops26h 17m

$803

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 3/27

7:35 pm-10:30 am

1 stop10h 55m

Belfast City

Tue 3/31

9:35 am-4:25 pm

1 stop11h 50m

$805

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sun 11/16

3:30 pm-6:55 pm

3 stops22h 25m

Belfast Intl

Sun 11/23

7:55 am-8:53 am

3 stops29h 58m

$956

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Sun 11/30

5:30 pm-8:45 pm

2 stops22h 15m

Belfast Intl

Sun 12/7

7:10 am-4:00 pm

3 stops37h 50m

$1,070

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 13 results
1
2

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 round-trip 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 $616). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of $1,005). 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.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated October 16, 2025.
Peruse reviews from past customers who have flown with British Airways from Philadelphia to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,457 reviews

Crew

7.6

Boarding

6.9

Entertainment

6.4

Overall

6.7

Food

6.3

Comfort

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,457 reviews
British Airways
6.7
Okay
7,457 reviews

Crew

7.6

Boarding

6.9

Entertainment

6.4

Overall

6.7

Food

6.3

Comfort

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

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 $642, British Airways can have you in Northern Ireland from Philadelphia in 12h 35m. The distance from Philadelphia to 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 vacation 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 $616). Flying from Philadelphia to Northern Ireland in February is currently the most expensive (average of $1,005). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
LaGuardia to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to London City flights
Newark to Gatwick flights
John F Kennedy Intl to Stansted flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Luton flights
Newark to London City flights
Newark to Stansted flights
Newark to Luton flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
Philadelphia to Heathrow flights
Newark to Edinburgh flights
Reagan-National to Gatwick flights
Dulles Intl to Stansted flights
John F Kennedy Intl to Edinburgh flights
LaGuardia to London City flights
Dulles Intl to Luton flights
John F Kennedy Intl to Manchester flights
LaGuardia to Edinburgh flights
Philadelphia to Gatwick flights
LaGuardia to Stansted flights
Reagan-National to London City flights
Dulles Intl to Edinburgh flights
John F Kennedy Intl to Glasgow Intl flights
Newark to Glasgow Intl flights
Philadelphia to London City flights
Reagan-National to Luton flights
LaGuardia to Luton flights
Newark to Manchester flights
LaGuardia to Manchester flights
Philadelphia to Stansted flights
Philadelphia to Luton flights
Pittsburgh to Heathrow flights
Dulles Intl to Glasgow Intl flights
Pittsburgh to Gatwick flights
Dulles Intl to Manchester flights
Reagan-National to Edinburgh flights
Reagan-National to Stansted flights
Philadelphia to Edinburgh flights
LaGuardia to Glasgow Intl flights
John F Kennedy Intl to Southend flights
Reagan-National to Manchester flights
John F Kennedy Intl to Birmingham flights
Pittsburgh to London City flights

Top airline flying from Philadelphia to Northern Ireland

Discover the top airline that operate flights from Philadelphia to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$685Average$879FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.