AirHint found the following cheapest return flights from Toronto (YYZ) to London (STN) in March 2026 (see full year).

Return flights

11 Mar - 24 Mar	Icelandair
17 Mar - 24 Mar	TAP
28 Mar - 05 Apr	Aer Lingus
15 Mar - 22 Mar	Aer Lingus
26 Mar - 18 Apr	Aer Lingus
27 Mar - 18 Apr	TAP
13 Mar - 20 Mar	Air Transat
02 Mar - 13 Mar	TAP
10 Mar - 21 Mar	Air Transat
05 Mar - 15 Mar	TAP
06 Mar - 19 Mar	Aer Lingus
11 Mar - 21 Mar	Aer Lingus
13 Mar - 22 Mar	TAP

Also check the deals for one-way flights from Toronto to London 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.

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Cheapest return flights from Toronto to London in March from $566

Return flights