Cheapest return flights from Ontario (ONT) to Porto (OPO), October

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
27 Oct 03 Nov British Airways
31 Oct 07 Nov British Airways
29 Oct 05 Nov British Airways
28 Oct 04 Nov British Airways
14 Oct 21 Oct British Airways
09 Oct 12 Oct Alaska Airlines
24 Oct 31 Oct British Airways
21 Oct 28 Oct British Airways
19 Oct 26 Oct British Airways
22 Oct 29 Oct British Airways
16 Oct 23 Oct British Airways
23 Oct 30 Oct British Airways
26 Oct 02 Nov British Airways
20 Oct 27 Oct British Airways
15 Oct 22 Oct British Airways
25 Oct 01 Nov British Airways
30 Oct 06 Nov British Airways
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deals for one-way flights from Ontario to Porto in October.

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Updated Jul 8, 2026.

About these fares

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