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

Return flights

01 Mar - 02 Mar	Air Serbia
09 Mar - 10 Mar	Air Serbia
12 Mar - 13 Mar	Air Serbia
13 Mar - 15 Mar	Air Serbia
12 Mar - 14 Mar	Air Serbia
24 Mar - 26 Mar	Air Serbia
06 Mar - 08 Mar	Air Serbia
21 Mar - 23 Mar	Air Serbia
03 Mar - 07 Mar	Air Serbia
01 Mar - 11 Mar	Air Serbia
21 Mar - 26 Apr	Air Serbia
16 Mar - 20 Apr	Air Serbia
25 Mar - 11 Apr	Air Serbia
30 Mar - 04 Apr	Air Serbia
30 Mar - 03 Apr	Air Serbia
19 Mar - 04 Apr	Air Serbia
29 Mar - 05 Apr	Air Serbia
19 Mar - 01 Apr	Air France
19 Mar - 01 Apr	British Airways	direct
16 Mar - 20 Apr	British Airways	direct

Also check the deals for one-way flights from London 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 London to Istanbul in March from $184

Return flights