AirHint found the following cheapest return flights from Long Beach (LGB) to Athens (ATH) in September 2025 (see full year).

Return flights

15 Sep - 24 Sep	Delta
05 Sep - 12 Sep	KLM
03 Sep - 10 Sep	Air France
02 Sep - 10 Sep	Air France
03 Sep - 11 Sep	Air France
08 Sep - 16 Sep	Air France
04 Sep - 12 Sep	Air France
07 Sep - 14 Sep	Air France
07 Sep - 15 Sep	Air France
02 Sep - 09 Sep	KLM

Also check the deals for one-way flights from Long Beach to Athens in September.

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 Long Beach to Athens in September from 615€

Return flights