AirHint found the following cheapest return flights from Ontario (ONT) to Tokyo (HND) in May 2026 (see full year).

Return flights

05 May - 12 May	American Airlines
06 May - 13 May	American Airlines
06 May - 15 May	Korean Air
04 May - 11 May	Delta
08 May - 21 May	China Airlines
14 May - 19 Jun	China Airlines
20 May - 30 May	China Airlines
16 May - 22 May	China Airlines
16 May - 31 May	China Airlines
06 May - 20 May	China Airlines
13 May - 19 May	China Airlines
14 May - 01 Jun	China Airlines
19 May - 04 Jun	China Airlines
17 May - 05 Jun	China Airlines
31 May - 07 Jun	ANA
22 May - 01 Jun	China Airlines
25 May - 01 Jun	China Airlines
26 May - 16 Jun	China Airlines
31 May - 06 Jun	ANA
25 May - 14 Jun	China Airlines

Also check the deals for one-way flights from Ontario to Tokyo in May.

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 Ontario to Tokyo in May from $783

Return flights