Cheapest return flights from Chicago to Las Vegas in December from $418

AirHint found the following cheapest return flights from Chicago (ORD) to Las Vegas (LAS) in December 2025 (see full year).

Return flights

31 Dec - 03 Jan Sun Country Airlines
27 Dec - 03 Jan Sun Country Airlines

Also check the deals for one-way flights from Chicago to Las Vegas in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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