Cheapest return flights from Frankfurt to San Jose in September from $584

Best time to book flights for Frankfurt (FRA) to San Jose (SJO) flights at AirHint

AirHint found the following cheapest return flights from Frankfurt (FRA) to San Jose (SJO) in September 2025 (see full year).

Return flights

17 Sep - 30 Sep Air France
11 Sep - 27 Sep Air France
17 Sep - 04 Oct Air France
03 Sep - 17 Sep KLM
10 Sep - 25 Sep KLM
11 Sep - 02 Oct Air France
25 Sep - 16 Oct Air France
07 Sep - 27 Sep KLM
02 Sep - 09 Sep KLM
09 Sep - 30 Sep KLM
10 Sep - 01 Oct KLM
22 Sep - 07 Oct KLM
06 Sep - 07 Oct KLM
09 Sep - 10 Oct KLM
16 Sep - 07 Oct Air France
16 Sep - 27 Sep Air France
16 Sep - 04 Oct Air France
01 Sep - 28 Sep Air France
30 Sep - 07 Oct Lufthansa direct
01 Sep - 08 Sep Air France

Also check the deals for one-way flights from Frankfurt to San Jose 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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