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

Return flights

11 Mar - 14 Apr	Spirit Airlines
14 Mar - 20 Mar	Spirit Airlines
31 Mar - 05 Apr	Frontier Airlines
12 Mar - 15 Mar	Frontier Airlines
06 Mar - 11 Mar	Frontier Airlines
20 Mar - 23 Mar	Frontier Airlines
06 Mar - 15 Mar	Frontier Airlines
07 Mar - 11 Mar	Frontier Airlines
07 Mar - 08 Mar	Frontier Airlines
06 Mar - 11 Mar	Air Canada	direct
20 Mar - 23 Mar	Delta	direct
14 Mar - 20 Mar	Air Canada	direct
11 Mar - 14 Apr	Air Canada	direct

Also check the deals for one-way flights from Atlanta to Toronto 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 Atlanta to Toronto in March from $220

Return flights