We've gone through lots of different flights, to help you find the cheapest way to get from George Best Belfast City Airport to Philadelphia. You can choose from five airlines. At the moment, 16 / Sep / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.
British Airways is the most popular airline that flies from George Best Belfast City Airport to Philadelphia. But it's still worth looking at other options, as there are 21 flights to Philadelphia every week. If you want to broaden your search, look at flights departing from other airports.
Generally speaking, the flight from George Best Belfast City Airport to Philadelphia takes around 13 hrs 45 mins. The fastest flight takes 11 hrs 50 mins to cover the 5254 km distance. You can view all flight times yourself in the results list.
You can also search by month, which will reveal the cheapest time of the week to fly.
