You’ve searched for flights from Londonderry to Philadelphia. We've gone through all 25 flights that go to or via Philadelphia every week, to help you find the cheapest flight. British Airways usually has the best-value flights from Londonderry, but make sure you compare all your options to get the cheapest flight possible.
When you fly from Londonderry to Philadelphia, you'll have three airlines to choose from for your 5164 km journey. If you're planning to fly in peak season, make sure you book in advance to get a reasonable price. Or you could hold on and try to get a last-minute bargain.
KLM, British Airways & Aer Lingus are the most popular airlines for flying from Londonderry to Philadelphia, so look out for their deals and offers. To find the best price, try searching by month. Or, if you want to bag a last-minute offer, keep an eye on Netflights to monitor the prices.
Flights from Londonderry to Philadelphia usually take about 16 hrs 20 mins. Once you've selected your flight, you'll need to fill out your details to book. And don’t forget to look at Netflights’ hotels and car hire – you could save even more money on your trip when you book everything in one go.
