AirHint found the following cheapest return flights from Oakland (OAK) to Copenhagen (CPH) in May 2026 (see full year).
Return flights
| 12 May - 24 May | Icelandair | ||
| 01 May - 10 May | Icelandair | ||
| 16 May - 06 Jun | Icelandair | ||
| 08 May - 30 May | Alaska Airlines | ||
| 29 May - 20 Jun | Icelandair |
Also check the deals for one-way flights from Oakland to Copenhagen in May.
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