£446 Find Cheap Finnair Flights from London to Philadelphia

Generally, when trying to get a below-average price for your ticket, try to book around 8 days before departure. For the cheapest possible price, our data suggests booking 28 days before departure.

With an average price of £763 return, Finnair is not the cheapest airline to fly from London to Philadelphia with. Instead, for the lowest price, our data suggests flying with United Airlines, where a return flight costs £571 on average.

In the last 3 days, the lowest price for a flight with Finnair from London to Philadelphia was £632 for a return flight and £576 for a one-way flight.

Yes, Finnair does offer direct flights for the route, with around 20 flights per week.

On average, the cheapest day of the week to fly from London to Philadelphia with Finnair is Sunday, when prices are around £587. The most expensive day is generally Friday, when the average price is around £739.

The cheapest month for Finnair flights to Philadelphia from London is generally March, where plane tickets cost £737 on average. If possible, try to avoid the most expensive months of July and August, when tickets cost £897 and £926 respectively.