Cheapest return flights from Chicago to Las Vegas in September from $133

Best time to book flights for Chicago (ORD) to Las Vegas (LAS) flights at AirHint

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

Return flights

08 Sep - 11 Sep Frontier Airlines direct
08 Sep - 10 Sep Frontier Airlines direct
23 Sep - 25 Sep Spirit Airlines direct
13 Sep - 20 Sep Spirit Airlines direct
23 Sep - 27 Sep Spirit Airlines direct
24 Sep - 30 Sep Spirit Airlines direct
23 Sep - 30 Sep Spirit Airlines direct
03 Sep - 07 Sep Spirit Airlines direct
27 Sep - 30 Sep Spirit Airlines direct
27 Sep - 04 Oct Spirit Airlines direct
15 Sep - 24 Sep Frontier Airlines direct
28 Sep - 01 Oct Frontier Airlines direct
29 Sep - 06 Oct Frontier Airlines direct
21 Sep - 04 Oct Sun Country Airlines
21 Sep - 05 Oct Sun Country Airlines
21 Sep - 09 Oct Sun Country Airlines
21 Sep - 12 Oct Sun Country Airlines

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

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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