AirHint found the following cheapest return flights from Seattle (SEA) to Copenhagen (CPH) in June 2026 (see full year).
Return flights
| 03 Jun - 10 Jun | Icelandair | ||
| 08 Jun - 12 Jun | Icelandair | ||
| 13 Jun - 20 Jun | Icelandair |
Also check the deals for one-way flights from Seattle to Copenhagen in June.
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