Cheapest return flights from Philadelphia to Keflavik in August from 504€

AirHint found the following cheapest return flights from Philadelphia (PHL) to Keflavik (KEF) in August 2025 (see full year).

Return flights

14 Aug - 20 Aug Air Canada
17 Aug - 26 Aug United
31 Aug - 07 Sep Air Canada
04 Aug - 10 Aug Air Canada
10 Aug - 16 Aug Frontier Airlines

Also check the deals for one-way flights from Philadelphia to Keflavik in August.

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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