AirHint found the following cheapest return flights from St. John's (YYT) to Cancun (CUN) in May 2026 (see full year).

Return flights

04 May - 17 May	WestJet
04 May - 11 May	WestJet
24 May - 03 Jun	Air Canada
20 May - 03 Jun	Air Canada
20 May - 10 Jun	Air Canada
27 May - 17 Jun	Air Canada
28 May - 03 Jun	Air Canada
18 May - 03 Jun	Air Canada
24 May - 01 Jun	Air Canada
28 May - 05 Jun	Air Canada
26 May - 16 Jun	Air Canada
05 May - 02 Jun	Air Canada
05 May - 12 May	Air Canada
05 May - 19 May	Air Canada
12 May - 26 May	Air Canada
20 May - 28 May	Air Canada
17 May - 28 May	Air Canada
01 May - 28 May	Air Canada
04 May - 19 May	Air Canada
04 May - 28 May	Air Canada

Also check the deals for one-way flights from St. John's to Cancun 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 St. John's to Cancun in May from 358€

Return flights