Cheapest return flights from Philadelphia to Copenhagen in September from $610

Best time to book flights for Philadelphia (PHL) to Copenhagen (CPH) flights at AirHint

AirHint found the following cheapest return flights from Philadelphia (PHL) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

03 Sep - 24 Sep British Airways
03 Sep - 10 Sep jetBlue
16 Sep - 26 Sep British Airways direct
09 Sep - 16 Sep British Airways direct
17 Sep - 23 Sep British Airways direct
02 Sep - 23 Sep Finnair direct
03 Sep - 24 Sep Finnair direct
02 Sep - 30 Sep Finnair direct
09 Sep - 30 Sep Finnair direct
03 Sep - 11 Sep Finnair direct
10 Sep - 01 Oct Finnair direct
03 Sep - 01 Oct Finnair direct
17 Sep - 14 Oct Air Canada
12 Sep - 06 Oct Finnair

Also check the deals for one-way flights from Philadelphia to Copenhagen in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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