Cheapest return flights from Ontario to Athens in June from $902

Best time to book flights for Ontario (ONT) to Athens (ATH) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to Athens (ATH) in June 2025 (see full year).

Return flights

09 Jun - 09 Jul Frontier Airlines
02 Jun - 10 Jun KLM
02 Jun - 16 Jun KLM
30 Jun - 24 Jul British Airways
30 Jun - 07 Jul British Airways
03 Jun - 10 Jun British Airways
03 Jun - 17 Jun British Airways
30 Jun - 31 Jul British Airways
06 Jun - 18 Jun British Airways
13 Jun - 18 Jun KLM
09 Jun - 18 Jun KLM
06 Jun - 11 Jun KLM
04 Jun - 13 Jun British Airways
03 Jun - 08 Jul British Airways
18 Jun - 09 Jul British Airways
24 Jun - 12 Jul Delta
11 Jun - 24 Jun British Airways
20 Jun - 09 Jul British Airways
20 Jun - 08 Jul KLM
20 Jun - 24 Jul KLM

Also check the deals for one-way flights from Ontario to Athens in June.

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 Athens

Cheap car rent in Athens