Cheapest return flights from Philadelphia to London in January from $573

AirHint found the following cheapest return flights from Philadelphia (PHL) to London (LGW) in January 2026 (see full year).

Return flights

13 Jan - 27 Jan SWISS
14 Jan - 20 Jan Spirit Airlines
16 Jan - 22 Jan Spirit Airlines
28 Jan - 06 Feb TAP
15 Jan - 20 Jan TAP
15 Jan - 21 Jan Spirit Airlines
11 Jan - 26 Jan TAP
05 Jan - 31 Jan TAP
02 Jan - 23 Jan TAP

Also check the deals for one-way flights from Philadelphia to London in January.

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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