Route notes
Why this routing works
This itinerary is structured as a simple California open-jaw from Paris: arrive in San Francisco, move overland to San Diego, and fly back to Paris from there. That sequencing removes the need to backtrack within California and keeps the flight plan aligned with a one-direction ground segment between the two cities.
For ticketing, the key feature is the surface sector between San Francisco and San Diego. Instead of adding a separate domestic flight, the route leaves that segment open, which can be useful when the trip includes independent ground transport plans inside the same region. The air portion then resumes from San Diego for the transatlantic return.
At 2 weeks total in premium economy, this routing fits a short, straightforward multi-stop plan centered on one international arrival and one different-city departure. With travel in February within the Jan-Mar season window, the structure is geared more toward efficient timing and clean logistics than a higher-stop itinerary.