AirHint found the following cheapest return flights from Ottawa (YOW) to Cancun (CUN) in October 2025 (see full year).

Return flights

21 Oct - 28 Oct	United
27 Oct - 30 Oct	United
27 Oct - 13 Nov	United
15 Oct - 22 Oct	United
11 Oct - 16 Oct	United
30 Oct - 03 Nov	WestJet
27 Oct - 10 Nov	WestJet
26 Oct - 10 Nov	WestJet
17 Oct - 23 Oct	United
25 Oct - 10 Nov	WestJet
30 Oct - 15 Nov	WestJet
17 Oct - 24 Oct	United
24 Oct - 10 Nov	Porter Airlines (Canada) Ltd
01 Oct - 08 Oct	United
30 Oct - 03 Nov	Air Transat	direct
08 Oct - 14 Oct	Air Canada
30 Oct - 15 Nov	Air Transat	direct
10 Oct - 27 Oct	WestJet
07 Oct - 13 Oct	WestJet
24 Oct - 09 Nov	Porter Airlines (Canada) Ltd

Also check the deals for one-way flights from Ottawa to Cancun in October.

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 Cancun

Cheap car rent in Cancun

Cheapest return flights from Ottawa to Cancun in October from 244€

Return flights