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$668+ Cheap flights from Philadelphia (PHL) to Belfast

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BHD
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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Find flight deals from Philadelphia to Belfast

Cheapest flights from Philadelphia to Belfast
Explore the most affordable flight options available from Philadelphia to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2025.

This American Airlines deal was found by Cheapflights users on 10/13. 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 11/52:58 pmPHL - BHD
2 stops14h 17mAmerican Airlines
Mon 11/106:35 amBHD - PHL
1 stop11h 50mAmerican Airlines
Deal found 10/13$668
This Mytrip deal was found by Cheapflights users on 10/13. 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.
Thu 11/279:48 amPHL - BFS
3 stops31h 32mMultiple Airlines
Thu 12/46:30 amBFS - PHL
2 stops22h 04mMultiple Airlines
Deal found 10/13$721
This Mytrip deal was found by Cheapflights users on 10/13. 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 11/59:20 amPHL - BHD
3 stops23h 30mMultiple Airlines
Mon 11/106:00 pmBHD - PHL
3 stops33h 46mMultiple Airlines
Deal found 10/13$780
This Mytrip deal was found by Cheapflights users on 10/11. 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.
Tue 11/259:48 amPHL - BFS
3 stops27h 07mMultiple Airlines
Tue 12/25:35 pmBFS - PHL
2 stops27h 25mMultiple Airlines
Deal found 10/11$1,164

Cheap flight deals from Philadelphia to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Belfast (BF1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 13, 2025.

Round-trip from

$668
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$694
From Philadelphia to Belfast
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 Belfast 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 13, 2025.
Use the filters below to find and compare flights from Philadelphia to Belfast that are best for you.

Fly from

Philadelphia

Fly to

Belfast

Route

Depart

Return

Price

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 - BFS

PHLBFS

Philadelphia

Thu 11/27

9:48 am-10:20 pm

3 stops31h 32m

Belfast Intl

Thu 12/4

6:30 am-11:34 pm

2 stops22h 04m

$721

PhiladelphiaBelfast

PHL - BHD

PHLBHD

Philadelphia

Fri 3/27

7:35 pm-10:30 am

1 stop10h 55m

Belfast City

Tue 3/31

6:35 am-4:25 pm

1 stop14h 50m

$806

PhiladelphiaBelfast

PHL - BFS

PHLBFS

Philadelphia

Tue 11/25

9:20 am-4:30 pm

3 stops26h 10m

Belfast Intl

Tue 12/2

8:50 am-10:46 pm

3 stops18h 56m

$1,192

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Best time to book a flight from Philadelphia to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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 Belfast

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

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Belfast (average of $616). Flying from Philadelphia to Belfast 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 Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated October 13, 2025.
Peruse reviews from past customers who have flown with British Airways from Philadelphia to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,453 reviews

Boarding

6.9

Entertainment

6.4

Comfort

6.7

Crew

7.6

Food

6.3

Overall

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
7,453 reviews
British Airways
6.7
Okay
7,453 reviews

Boarding

6.9

Entertainment

6.4

Comfort

6.7

Crew

7.6

Food

6.3

Overall

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 Belfast. 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 Belfast?

    Most people fly from Philadelphia (PHL) if they book a flight from Philadelphia to Belfast. On average, Philadelphia has 0 outbound flights to Belfast per day from 1 airline. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • How long is the flight from Philadelphia to Belfast?

    For as low as $689, American Airlines can have you in Belfast from Philadelphia in 13h 30m. Airlines will cover a distance of 3260 mi.

  • What is the cheapest airline to fly from Philadelphia to Belfast round-trip?

    Cheapflights users have booked flights from Philadelphia to Belfast round-trip from $685. This flight start at 23% lower than the current average price 3 months from now.

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

    Yes. In addition to deals on Philadelphia to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Belfast?

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Belfast 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 Belfast?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Belfast (average of $616). Flying from Philadelphia to Belfast 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

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Top airline flying from Philadelphia to Belfast

Discover the top airline that operate flights from Philadelphia to Belfast. 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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$685Average$879FlexibilityNo cancel feeOn-time70%

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