Hangzhou to Dulles (HGH–IAD) — Airlines, Schedules & Connections

Chinese passport holders require a B1/B2 visa for tourism or business travel to the United States. The visa is typically issued for 10 years with multiple entries, allowing stays of up to 180 days per visit. An in-person interview at a US embassy or consulate is required, and the application fee is US $185. Holders of 10-year B visas must also enroll in EVUS (Electronic Visa Update System) every two years before travel.

Hangzhou Metro Line 7 serves the airport, connecting to central Hangzhou (West Lake area via transfer) in 60–80 minutes (¥7–10). The airport metro station opened in 2021. Trains operate from around 6am to 11pm.The airport is 30km southeast of central Hangzhou. Taxis cost ¥70–110 and take 40–60 minutes via the expressway. Airport shuttle buses (¥20–30) serve major hotels and the city centre. Ride-hailing (DiDi) is widely used.

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.