There are several ways to get to Nepal from Europe and the USA all of which involve an international flight to Tribhuvan International Airport which is the main airport in Kathmandu. There are a lot of airlines that fly to Kathmandu through the Middle East. Qatar, Gulf Air and Emirates offer daily flights from Europe and the US with a stopover at their central hubs. You must be carefu... https://missionhimalayatreks.com/trips/everest-base-camp-trek