AirHint found the following cheapest return flights from Basel (BSL) to Istanbul (SAW) in December 2025 (see full year).

Return flights

02 Dec - 16 Dec	AJet	direct
04 Dec - 07 Dec	AJet	direct
05 Dec - 07 Dec	AJet	direct
04 Dec - 08 Dec	AJet	direct
03 Dec - 10 Dec	easyJet
08 Dec - 15 Dec	Pegasus Airlines	direct
08 Dec - 12 Dec	AJet	direct
06 Dec - 09 Dec	AJet	direct
09 Dec - 13 Dec	easyJet
01 Dec - 07 Dec	AJet	direct
31 Dec - 12 Jan	easyJet
31 Dec - 12 Jan	Pegasus Airlines	direct
24 Dec - 06 Jan	Wizz Air
26 Dec - 09 Jan	AJet	direct
05 Dec - 03 Jan	easyJet
05 Dec - 03 Jan	AJet	direct
21 Dec - 07 Jan	easyJet
19 Dec - 06 Jan	easyJet
21 Dec - 06 Jan	easyJet
29 Dec - 01 Jan	AJet	direct

Also check the deals for one-way flights from Basel to Istanbul in December.

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 Basel to Istanbul in December from $106

Return flights