Denver (DEN) to Amsterdam (AMS): ~10.5 Hours Nonstop

Flight time: 10 hours 30 minutes (typical nonstop).

Current Nonstop Service

• United Airlines — daily, Boeing 787-8/9 (DEN hub → AMS hub for Star Alliance).
• KLM Royal Dutch Airlines — codeshare on United; sometimes operates own 787-9/10.

Variables

• Jet stream: Westbound (DEN→AMS) +45–75 min vs eastbound.
• Route: Great circle over Canada, Greenland, Iceland, Scotland.
• Seasonal: Summer schedules may add frequency; winter winds stronger.

One-Stop Alternatives

Via IAH, ORD, EWR, IAD, YYZ, LHR, FRA, CDG, KEF — 13–17h total. Often cheaper; useful for mileage runs or stopovers.

Tips

• Book 4–8 months ahead for summer; 2–4 months for shoulder.
• United Polaris / KLM World Business Class: lie-flat, good service.
• DEN's high altitude (1,656 m) marginally affects takeoff performance—longer roll, but 12,000+ ft runways handle 787 easily.

DEN–AMS is a premier transatlantic link connecting the Mountain West to Europe's core.