AirHint found the following cheapest return flights from Portland (PDX) to Madrid (MAD) in January 2026 (see full year).

Return flights

13 Jan - 22 Jan	Air Canada
18 Jan - 27 Jan	Air Canada
20 Jan - 29 Jan	Air Canada
25 Jan - 03 Feb	Air Canada
27 Jan - 05 Feb	Air Canada
14 Jan - 23 Jan	British Airways
21 Jan - 30 Jan	British Airways
19 Jan - 28 Jan	Finnair
26 Jan - 04 Feb	Finnair
28 Jan - 06 Feb	British Airways
24 Jan - 02 Feb	Air Canada
31 Jan - 09 Feb	Air Canada
12 Jan - 21 Jan	British Airways
17 Jan - 26 Jan	Air Canada
11 Jan - 20 Jan	Air Canada
05 Jan - 14 Jan	Air Canada
23 Jan - 01 Feb	British Airways
30 Jan - 08 Feb	British Airways
29 Jan - 07 Feb	British Airways

Also check the deals for one-way flights from Portland to Madrid in January.

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 Portland to Madrid in January from $439

Return flights