AirHint found the following cheapest return flights from Bristol (BRS) to Istanbul (IST) in December 2025 (see full year).

Return flights

31 Dec - 23 Jan	easyJet	direct
31 Dec - 26 Jan	easyJet	direct
31 Dec - 30 Jan	easyJet	direct
29 Dec - 23 Jan	easyJet	direct
29 Dec - 26 Jan	easyJet	direct
29 Dec - 30 Jan	easyJet	direct
30 Dec - 10 Jan	Pegasus Airlines
15 Dec - 24 Dec	Aer Lingus
29 Dec - 09 Jan	easyJet
31 Dec - 06 Jan	easyJet
17 Dec - 24 Dec	Ryanair
29 Dec - 31 Dec	easyJet	direct
31 Dec - 05 Jan	easyJet
16 Dec - 22 Dec	easyJet
16 Dec - 18 Dec	easyJet
15 Dec - 22 Dec	Aer Lingus
15 Dec - 17 Dec	Jet2
26 Dec - 27 Dec	SunExpress
24 Dec - 26 Dec	easyJet	direct
26 Dec - 27 Dec	easyJet	direct

Also check the deals for one-way flights from Bristol 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 Bristol to Istanbul in December from $114

Return flights