Cheapest return flights from Belfast to Athens in September from $221

Best time to book flights for Belfast (BFS) to Athens (ATH) flights at AirHint

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

Return flights

28 Sep - 04 Oct easyJet
22 Sep - 29 Sep Ryanair
08 Sep - 18 Sep Ryanair
22 Sep - 07 Oct easyJet
11 Sep - 18 Sep Ryanair
22 Sep - 06 Oct easyJet
22 Sep - 28 Sep easyJet
03 Sep - 10 Sep Ryanair
18 Sep - 21 Sep Ryanair
02 Sep - 07 Sep Ryanair
05 Sep - 05 Sep Ryanair

Also check the deals for one-way flights from Belfast to Athens 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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