Bern to Dulles (BRN–IAD) — Airlines, Schedules & Connections

Switzerland is part of the US Visa Waiver Program. Swiss passport holders need an approved ESTA to enter the US. Apply at esta.cbp.dhs.gov at least 72 hours before departure. The fee is USD 21. ESTA is valid for 2 years or until your passport expires, whichever comes first. It allows multiple entries.

ESTA permits stays up to 90 days per visit. You cannot extend or change your immigration status while on ESTA. If denied, you must apply for a B1/B2 visa at the US Embassy in Bern. At the border, CBP officers may ask about your travel purpose, return ticket, and accommodation. Your passport must be valid for the duration of the stay.

Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.

Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.

Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.