Flyers preferred the first class flights for easy air travel to visit places like Las Vegas. Moreover, the fare for first class tickets to Las Vegas is pretty much more expensive than other classes of the airlines, and the reason is its wide range of premium amenities and benefits, which provide a luxurious experience during the journey. Apart from that, airlines follow the dynamic pricing strategy to set the price so that one can know the exact price of the 1st class flight at the time of reservation. But the average one-way cost of the ticket is somewhere around $650 per passenger for domestic routes and $2,150 per passenger for international routes.