Cheapest one-way flights from Philadelphia to London in May from $290

AirHint found the following cheapest one-way flights from Philadelphia (PHL) to London (LHR) in May 2026 (see full year).

One-Way flights

04 May jetBlue
06 May jetBlue
08 May jetBlue
18 May jetBlue
14 May Frontier Airlines
04 May British Airways direct
06 May British Airways direct
18 May Finnair direct
20 May Air Canada
19 May British Airways direct

Also check the deals for return flights from Philadelphia to London in May.

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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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