Cheap Flights from Chicago to Las Vegas
Compare cheap flights from Chicago (ORD) to Las Vegas (LAS) on Tripile, with fares from around $99. The route takes about 3h 50m, and December is often the best month for low prices.
Airlines on This Route
Popular airlines flying Chicago to Las Vegas include Southwest, Spirit, Frontier, United. Compare their schedules, baggage rules, and prices side by side, then book the option that fits your trip.
With 4 carriers commonly serving ORD to LAS, departure times are spread across the day, so it is worth checking early-morning and late-evening flights when you want the lowest fare on a 3h 50m sector.
When to Book ORD to LAS
Fares on this route start from around $99, and December typically brings the lowest prices. Search with flexible dates to compare a whole month at once, check the return leg from Las Vegas to Chicago in the same search, and review the fare rules before paying so you know what a change or cancellation would cost.