Cheapest return flights from Portland to Thessaloniki in May from $724

AirHint found the following cheapest return flights from Portland (PDX) to Thessaloniki (SKG) in May 2026 (see full year).

Return flights

26 May - 02 Jun Icelandair
19 May - 26 May Icelandair
28 May - 04 Jun Icelandair
27 May - 03 Jun Icelandair
24 May - 31 May Icelandair
20 May - 27 May Icelandair
22 May - 29 May Icelandair
21 May - 28 May Icelandair
29 May - 05 Jun Icelandair
23 May - 30 May Icelandair
25 May - 01 Jun Alaska Airlines
15 May - 22 May Frontier Airlines
17 May - 24 May Alaska Airlines
16 May - 23 May Alaska Airlines

Also check the deals for one-way flights from Portland to Thessaloniki in May.

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