Paris (Roissy-en-France, Val-d'Oise) to Philadelphia (CDG–PHL) — Airlines, Schedules & Connections

French citizens enter the US visa-free under the Visa Waiver Program (VWP) for up to 90 days for tourism or business. You must get an ESTA (Electronic System for Travel Authorization) before boarding. Apply at esta.cbp.dhs.gov. The ESTA costs USD 21 and is valid for 2 years or until your passport expires. Apply at least 72 hours before departure, though most approvals come within minutes.

Your passport must be biometric (the e-passport symbol on the cover). At US immigration, you will be fingerprinted and photographed. Officers may ask about your trip purpose, accommodation, and return plans. You cannot extend a VWP stay beyond 90 days or change status while in the US. For longer stays or work, apply for a visa at the US Embassy in Paris (2 Avenue Gabriel, Paris 8e).

Air France, Delta, United, and other carriers fly Paris CDG to multiple US cities direct, including New York JFK, Los Angeles, Chicago, Atlanta, Miami, and Washington Dulles. The US dollar is the local currency. Tipping is expected (15 to 20% at restaurants). Travel insurance covering medical costs is strongly recommended since US healthcare charges are extreme by French standards. An ER visit can cost USD 3,000 or more without insurance.

RER B train runs from central Paris (Châtelet–Les Halles, Gare du Nord) to CDG T2 in 30–35 minutes (€11.80, RATP fare). From T2, a free CDGVAL people mover covers T1 and T3. Train frequency is every 10–15 minutes; service runs from around 5am to midnight.

Taxis from Paris have a fixed fare: €55 to the Right Bank (most of central Paris), €65 to the Left Bank. Journey time is 30–60 minutes depending on traffic on the A1. Ride-hail (Uber, Bolt) is often cheaper. Buses (Le Bus Direct) run from major Left Bank and Right Bank stops (€17).

SEPTA Airport Line from the terminal to Center City takes 25–30 minutes ($8). Trains run every 30 minutes (5am to midnight) to 30th Street, Suburban, and Jefferson stations; all with connections to the subway and regional rail network. Buy tickets at platform machines.Taxis to Center City cost $28–35 (flat rate). Ride-shares to Center City run $22–35. For New York City, the Bolt Bus and Greyhound stop near 30th Street Station, or take NJ Transit to New York Penn Station (connecting from 30th Street). Amtrak also departs 30th Street Station for New York in 65 minutes.

Humid continental climate on the Delaware River. Winters (December–March) are cold (−2 to 5°C) with snow and ice. Philadelphia sits in the I-95 "snow corridor" and receives significant nor'easter snowfall several times per winter. PHL has solid de-icing capacity, but major storms cause multi-hour and multi-day disruptions.

Summers are hot and humid (28–34°C) with afternoon thunderstorms that cause frequent delays June through August. Spring and fall are transitional with variable conditions. Fog along the Delaware is occasional in fall and early winter mornings.