AirHint found the following cheapest return flights from Portland (PDX) to Athens (ATH) in March 2026 (see full year).

Return flights

18 Mar - 24 Mar	Air Canada
11 Mar - 18 Mar	United
10 Mar - 19 Mar	Air Canada
10 Mar - 17 Mar	Air Canada
17 Mar - 24 Mar	Air Canada
12 Mar - 19 Mar	United
03 Mar - 10 Mar	Air Canada
16 Mar - 23 Mar	British Airways
23 Mar - 31 Mar	British Airways
19 Mar - 24 Mar	Air Canada
31 Mar - 07 Apr	Hawaiian Airlines
25 Mar - 01 Apr	United
28 Mar - 04 Apr	Icelandair
29 Mar - 05 Apr	Hawaiian Airlines
30 Mar - 06 Apr	Hawaiian Airlines
26 Mar - 02 Apr	United
27 Mar - 03 Apr	Alaska Airlines

Also check the deals for one-way flights from Portland to Athens in March.

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 Athens in March from $475

Return flights