Common itineraries for travel from Paris-Orly Airport (ORY) to Harry Reid International Airport (LAS) pair short ORY-to-CDG/AMS/FRA segments with long-haul carriers. Air France (with connections via CDG) and KLM (via AMS) are popular because of strong European feeder networks; Lufthansa routes through FRA and British Airways via LHR are alternatives. Delta and American typically appear on transatlantic legs when combined with alliance partners. When comparing airlines for October trips, evaluate total travel time, baggage fees, seat selection policies, and reliability records. Check alliance benefits (SkyTeam, Star Alliance, Oneworld) and consider paid seat upgrades or premium economy for long overnight segments. CTA: Use a multi-airline search to compare total ORY→LAS journey time, baggage and price for October departures.