Boise to Copenhagen (BOI–CPH) — Airlines, Schedules & Connections

US passport holders enter Denmark visa-free for stays up to 90 days within any 180-day period. This falls under the Schengen area rules, so the 90-day limit is shared across all Schengen countries. No advance application is needed. Passport must be valid for at least 3 months beyond the planned departure from the Schengen area.

The Metro M2 runs every 4–6 minutes from the airport station to central Copenhagen (15 min, DKK 36 on Rejsekort). DSB regional trains depart for Copenhagen Central Station (13 min) and continue to Malmö (Sweden) via the Øresund Bridge (35 min total from airport). Taxis from arrivals to the city centre cost DKK 250–350; Uber also operates.Terminal 3 (international) and Terminal 2 (domestic/Schengen) are connected by a covered walkway. Rental car desks are in Terminal 3 arrivals. CPH is also a ferry hub; routes to Oslo (DFDS) and Bornholm depart from Copenhagen's harbour, accessible via city transit.

Temperate maritime climate. Winters (November–February) are cold and frequently overcast at −2 to 5°C with rain, sleet, and occasional snow. Copenhagen is better prepared for winter operations than many European cities, but heavy snowfall still causes delays. Fog is a seasonal disruption risk, particularly October through January.

Summers (June–August) are mild and pleasant at 18–24°C with long daylight hours and generally good flying conditions. Wind from the southwest can be strong year-round. CPH has a crosswind reputation. Spring and autumn are transitional and variable.