Zaventem to Denver (BRU–DEN) — Airlines, Schedules & Connections

Belgian passport holders travel to the US under the Visa Waiver Program for stays up to 90 days. An approved ESTA (Electronic System for Travel Authorization) is required before boarding and costs USD $21. The ESTA is valid for 2 years or until passport expiry. An e-passport with a machine-readable chip is mandatory.

The Airport Express train runs every 15–20 minutes from Brussels Central, Midi (South), and Nord stations to BRU in 17–25 minutes (€11.80 one-way, free with Brussels Card). Traffic on the Ring road (R0) is heavily congested during morning rush, making the train the consistent choice for peak departures.

Taxis from central Brussels cost €40–55 and take 25–40 minutes. Ride-shares (Uber) run €30–45. Parking at BRU starts at €10/day in the P-Long facility with free shuttle.

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.