Cheapest return flights from Frankfurt to San Jose in September from $595

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

01 Sep - 13 Sep Air France
04 Sep - 14 Sep Air France
10 Sep - 20 Sep Air France
04 Sep - 13 Sep Air France
06 Sep - 13 Sep Air France
01 Sep - 29 Sep Air France
11 Sep - 25 Sep Air France
04 Sep - 27 Sep Air France
06 Sep - 27 Sep Air France
01 Sep - 05 Oct Air France
18 Sep - 29 Sep KLM
19 Sep - 03 Oct KLM
19 Sep - 04 Oct KLM
21 Sep - 04 Oct KLM
13 Sep - 03 Oct KLM
23 Sep - 07 Oct KLM
23 Sep - 04 Oct KLM
17 Sep - 07 Oct KLM
24 Sep - 08 Oct Air France
21 Sep - 03 Oct 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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose