Copenhagen to Denver (CPH–DEN) — Airlines, Schedules & Connections

Denmark is part of the US Visa Waiver Program. Danish citizens must obtain an ESTA (Electronic System for Travel Authorization) before travel. The ESTA costs $21, is valid for 2 years or until the passport expires, and allows stays of up to 90 days per visit. An e-passport with a biometric chip is required.

The Metro M2 line connects central Copenhagen (Kongens Nytorv, Christianshavn, Vanløse) to the airport in 15–16 minutes from Kongens Nytorv for DKK 36 (Rejsekort card). Trains run 24 hours, every 4 minutes at peak and every 6 minutes at night; one of the most frequent airport rail links in Europe. DSB regional trains also call at the airport station.The Øresund train connects directly to Malmö Central (Sweden) in 35 minutes from the airport; a cross-border connection unique among European airports. Taxis from the city centre cost DKK 250–350 (€33–47). Uber is available. Driving from Copenhagen takes 10–15 minutes via E20 motorway.

RTD A Line runs to Denver Union Station (37 min, $10.50) with connections to light rail and bus routes. Taxis have meters; expect $55–65 to downtown.DEN's tent-roof Jeppesen Terminal is a single building; all three concourses connect via the underground automated train. Rental cars are on level 5. For ski resorts, shuttle services depart from Ground Transportation.

Semi-arid with 300+ days of sunshine. Summers are dry and warm (27–34°C) with afternoon thunderstorms that produce dramatic but brief delays. Winters bring cold temperatures (−8 to 5°C) and heavy blizzards that can shut down ground operations.

Spring snowstorms can be heavier than midwinter ones. Altitude (5,430 ft) means low humidity year-round; stay hydrated.