Cheapest return flights from Denver (DEN) to Toronto (YYZ), October

10 dates in October, from $ 410. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
30 Oct 5 Nov Frontier Airlines
26 Oct 27 Oct Frontier Airlines
30 Oct 5 Nov United
Direct Flight
19 Oct 23 Oct Volaris
16 Oct 21 Oct Frontier Airlines
19 Oct 23 Oct Air Canada
Direct Flight
16 Oct 21 Oct Air Canada
Direct Flight
16 Oct 18 Oct Delta
16 Oct 18 Oct Air Canada
Direct Flight
14 Oct 16 Oct Air Canada
Direct Flight
Powered by

Cheapest deals for the full year

Deals for one-way flights from Denver to Toronto in October.

Book a cheap hotel in Toronto

Cheap car rent in Lester B Pearson Intl

Updated Oct 12, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.