There are 9 airlines that fly directly from Chicago to Las Vegas: Qantas Airways Ltd., Air New Zealand, Alaska Airlines, Southwest Airlines, American Airlines, United Airlines, Frontier Airlines, Allegiant Air, Spirit Airlines if you are departing from Chicago. Most airlines that have direct connections are departing from Chicago O'Hare International Airport. Most airlines arrive to McCarran International Airport. Most flights depart on Saturday, Friday.
Airlines that have direct flights from Chicago to Las Vegas
No direct flights to Las Vegas