AirHint found the following cheapest return flights from Newark (EWR) to Istanbul (IST) in June 2025 (see full year).

Return flights

24 Jun - 03 Jul	Air Canada
24 Jun - 02 Jul	Air Canada
26 Jun - 08 Jul	Air Canada
26 Jun - 01 Jul	Air Canada
26 Jun - 03 Jul	Air Canada
25 Jun - 07 Jul	Air Canada
28 Jun - 10 Jul	Air Canada
30 Jun - 07 Jul	Air Canada
29 Jun - 06 Jul	SWISS
29 Jun - 09 Jul	SWISS
28 Jun - 30 Jun	SWISS
24 Jun - 28 Jun	Lufthansa
24 Jun - 25 Jun	KLM
26 Jun - 28 Jun	Lufthansa
24 Jun - 28 Jun	Turkish Airlines	direct
24 Jun - 24 Jun	Turkish Airlines
26 Jun - 28 Jun	Turkish Airlines	direct
24 Jun - 25 Jun	Turkish Airlines	direct
24 Jun - 30 Jun	Turkish Airlines	direct
27 Jun - 30 Jun	Turkish Airlines	direct

Also check the deals for one-way flights from Newark to Istanbul in June.

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 Newark to Istanbul in June from $636

Return flights