Flights from Chicago to Las Vegas with Allegiant Air

Our cheapest offers for flights from Chicago to Las Vegas

Here you can compare cheap flights from Chicago (CHI) to Las Vegas (LAS) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Las Vegas. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Chicago
Las Vegas
Pay attention to transfer at connecting flight
Outbound
10/18/25
2 Stopovers (PGD, DSM)
G42469, G40967, G40452
25h 02min
Return
10/22/25
2 Stopovers (MSP, SRQ)
SY0108, SY0941, G41378
19h 34min
Allegiant Air
$479
Chicago
Las Vegas
Outbound
12/24/25
2 Stopovers (SFB, PIT)
G42887, G42726, NK0330
38h 49min
Return
01/11/26
direct
G40060
03h 24min
Allegiant Air, Spirit Airlines
$782
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Chicago - Las Vegas

Roundtrip from 152,97 $
Flight duration min. 03:44 / max. 08:50
Return flight duration min. 03:13/ max. 09:10
Distance 2456 km
Flights per week 220
Departure airport Airport Chicago-IL, all airports (CHI)
Arrival airport Airport Las Vegas - McCarran International Airport, NV (LAS)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Las Vegas
Flight destinations with a similar price
Flight destinations with a similar price