Cheapest return flights from Frankfurt to San Jose in September from 507€

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

11 Sep - 02 Oct Air France
12 Sep - 03 Oct Air France
04 Sep - 05 Oct Air France
24 Sep - 09 Oct SWISS
06 Sep - 07 Oct KLM
02 Sep - 01 Oct KLM
23 Sep - 07 Oct KLM
18 Sep - 02 Oct KLM
02 Sep - 02 Oct KLM
25 Sep - 04 Oct KLM
04 Sep - 25 Sep SWISS
04 Sep - 18 Sep SWISS
10 Sep - 18 Sep SWISS
16 Sep - 23 Sep Air France
10 Sep - 30 Sep Air France
08 Sep - 30 Sep KLM
02 Sep - 23 Sep KLM
06 Sep - 23 Sep KLM
02 Sep - 09 Sep KLM
06 Sep - 18 Sep KLM

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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