Lisbon to Raleigh/Durham (LIS–RDU) — Airlines, Schedules & Connections

Portugal is part of the US Visa Waiver Program. Portuguese passport holders enter the United States for up to 90 days without a visa, but must obtain an approved ESTA (Electronic System for Travel Authorization) before boarding. The ESTA costs USD 21, is valid for 2 years or until the passport expires, and covers multiple entries. Apply at the official CBP site (esta.cbp.dhs.gov) at least 72 hours before departure.

The 90-day stay cannot be extended, and you cannot change immigration status while in the US on the Visa Waiver Program.

Metro Red Line runs from downtown Lisbon (Alameda, Oriente) to the airport in 20–25 minutes (€1.85 single, or €0.48 on a Viva Viagem card). Trains run from 6:30am to 1am. The airport has its own station (Aeroporto) at the end of the Red Line.

Taxis from central Lisbon cost €10–15 and take 15–20 minutes with no traffic. Uber and Bolt are widely available at similar or lower prices. AeroBus (Carris) is slower (30–40 min) but cheaper at €4.

Uber and Lyft from RDU to downtown Raleigh cost $20–30 (20–25 min); to downtown Durham: $18–25 (15–20 min). Pickup zones are on the lower level at both Terminal 1 and Terminal 2. Taxis are available at the curb ($30–40 to Raleigh).GoTriangle Route 100 ($2.25) is a budget option to downtown Raleigh and Durham; check hours before relying on it for evening or early-morning flights. Rental car desks are in the terminal buildings with cars in the adjacent garage. Chapel Hill is 20–25 minutes via US-15-501.

Humid subtropical climate with hot summers and mild but variable winters. Summer (June–August) temperatures reach 33–37°C with high humidity. Afternoon thunderstorms are frequent and can cause ground holds. The region sits in a tornado risk corridor during spring (April–May).

Winter (December–February) is generally mild at 2–12°C. The Piedmont of North Carolina experiences ice storms. Freezing rain events, common every 1–2 years, are the primary disruption risk. Snow is lighter than areas further north, but ice can be severe. Autumn (September–November) is the most operationally stable season.