AirHint found the following cheapest return flights from Phoenix (PHX) to Frankfurt (FRA) in August 2025 (see full year).

Return flights

12 Aug - 19 Aug	Condor
12 Aug - 22 Aug	Alaska Airlines
15 Aug - 29 Aug	Alaska Airlines
11 Aug - 22 Aug	Condor
09 Aug - 20 Aug	Frontier Airlines
27 Aug - 03 Sep	Frontier Airlines
21 Aug - 28 Aug	Lufthansa
11 Aug - 18 Aug	Lufthansa
25 Aug - 01 Sep	United
28 Aug - 04 Sep	Lufthansa
23 Aug - 30 Aug	United
09 Aug - 16 Aug	Lufthansa

Also check the deals for one-way flights from Phoenix to Frankfurt in August.

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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Cheapest return flights from Phoenix to Frankfurt in August from $599

Return flights