AirHint found the following cheapest return flights from London (LHR) to Istanbul (IST) in June 2026 (see full year).

Return flights

04 Jun - 14 Jun	Air Serbia
04 Jun - 08 Jun	Air Serbia
05 Jun - 07 Jun	Air Serbia
09 Jun - 11 Jun	Air Serbia
01 Jun - 04 Jun	Air Serbia
01 Jun - 06 Jun	Air Serbia
01 Jun - 07 Jun	Air Serbia
03 Jun - 07 Jun	Air Serbia
10 Jun - 14 Jun	Air Serbia
02 Jun - 09 Jun	Air Serbia
26 Jun - 03 Jul	British Airways	direct
16 Jun - 21 Jul	British Airways	direct
25 Jun - 02 Jul	British Airways	direct
18 Jun - 01 Jul	British Airways	direct

Also check the deals for one-way flights from London 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 London to Istanbul in June from $187

Return flights