New Delhi to Houston (DEL–IAH) — Airlines, Schedules & Connections

Indian passport holders need a visa to enter the United States. The B-1/B-2 tourist and business visa is the standard category. Apply online through the DS-160 form at ceac.state.gov, pay the $185 application fee, and schedule an in-person interview at a US consulate in India. Interview wait times vary by city and season. Check ustraveldocs.com/in for current wait times.

B-1/B-2 visas are typically issued for 10 years with multiple entries. Each stay is limited to 6 months as determined by the CBP officer at entry. Indian nationals are not eligible for the Visa Waiver Program or ESTA. There is no visa on arrival.

Delhi Metro Airport Express runs from New Delhi Railway Station to T3 in 18–20 minutes (₹60 one-way). From Shivaji Stadium (central Delhi) it takes 24 minutes. The line has four stations: New Delhi, Shivaji Stadium, Dhaula Kuan, and IGI Airport (T3). T1 (domestic) is not directly served; take the metro to T3 and the free airport bus shuttle to T1.Prepaid taxis from the terminal use a metered system with fixed rates; central Delhi costs ₹400–600. Ola and Uber operate widely and are often cheaper. Auto-rickshaws are not permitted on the expressway.

No direct rail from IAH. The METRO bus 102 (IAH Express) runs to downtown Houston's transit center (60–90 min, $1.25). Taxis to downtown Houston cost $50–70. Ride-hails pick up at the designated Rideshare zones outside baggage claim on the lower level.IAH has five terminals (A–E) connected by an underground tunnel with trams. Terminal D handles international arrivals. Rental car agencies are in a consolidated facility adjacent to Terminal C; a free IAH Connector bus runs between terminals and the rental car center. The Galleria / Uptown area costs $35–50 by ride-hail.

Humid subtropical climate. Hot, humid, and wet for much of the year. Summers are brutal (33–38°C) with high humidity and near-daily afternoon thunderstorms. Severe storms with hail and high winds regularly cause ground stops from April through September. Houston's flooding risk is significant. Heavy rain events, including tropical system remnants, have flooded airport roads, cutting off surface access even when the airport itself remains operational.

Winters are mild (5–18°C) with occasional ice storms. These are rare but highly disruptive when they occur. Hurricane season (June–November) requires monitoring for Gulf storms. October through March has the best flying weather.