AirHint found the following cheapest return flights from Dallas-Fort Worth (DFW) to Istanbul (IST) in December 2025 (see full year).

Return flights

13 Dec - 29 Jan	Frontier Airlines
09 Dec - 16 Dec	KLM
31 Dec - 14 Jan	British Airways
15 Dec - 10 Jan	Spirit Airlines
10 Dec - 16 Dec	British Airways
08 Dec - 16 Dec	British Airways
09 Dec - 15 Dec	British Airways
25 Dec - 11 Jan	British Airways
04 Dec - 11 Jan	Frontier Airlines
01 Dec - 08 Dec	Lufthansa
09 Dec - 14 Dec	Delta
05 Dec - 12 Dec	Spirit Airlines
12 Dec - 11 Jan	Frontier Airlines
08 Dec - 13 Dec	Spirit Airlines
08 Dec - 14 Dec	Spirit Airlines
27 Dec - 09 Jan	Frontier Airlines
14 Dec - 27 Dec	Frontier Airlines
13 Dec - 29 Jan	Turkish Airlines	direct
19 Dec - 15 Jan	Frontier Airlines
27 Dec - 09 Jan	Turkish Airlines	direct

Also check the deals for one-way flights from Dallas-Fort Worth 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 Dallas-Fort Worth to Istanbul in December from 636€

Return flights