AirHint found the following cheapest return flights from Chicago (ORD) to Istanbul (IST) in March 2026 (see full year).

Return flights

16 Mar - 23 Mar	Icelandair
18 Mar - 25 Mar	Icelandair
18 Mar - 27 Mar	Icelandair
04 Mar - 18 Mar	Icelandair
14 Mar - 28 Mar	KLM
22 Mar - 29 Mar	KLM
17 Mar - 31 Mar	KLM
07 Mar - 16 Mar	Aer Lingus
25 Mar - 01 Apr	Lufthansa
29 Mar - 18 Apr	KLM
22 Mar - 11 Apr	KLM
31 Mar - 25 Apr	Air France
30 Mar - 06 Apr	Lufthansa
25 Mar - 18 Apr	Lufthansa
15 Mar - 22 Mar	Lufthansa
27 Mar - 18 Apr	LOT
28 Mar - 18 Apr	LOT
18 Mar - 25 Mar	Turkish Airlines	direct
25 Mar - 01 Apr	Turkish Airlines	direct
30 Mar - 06 Apr	Turkish Airlines	direct

Also check the deals for one-way flights from Chicago to Istanbul in March.

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 Istanbul

Cheap car rent in Istanbul

Cheapest return flights from Chicago to Istanbul in March from 527€

Return flights