Cheap flights - Chicago to Las Vegas - round trip.

From only $78
51% cheaper!
Check details below.

Choose the best option for you.

Blue skies Ahead.

Cheap flights - Chicago - Las Vegas - only $78 RT - 51% off
Chicago - Las Vegas - 10.26.2025 - 10.31.2025 (5 days) - $78 - 51% off
Expired
9:54 PM - 11:59 PM Frontier
4 hr 5 min ORD-LAS
0 stops
V
9:54 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 5 min
11:59 PM Harry Reid International Airport (LAS)
 
Expired
3:45 PM - 9:43 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:45 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:43 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 10.26.2025 - 11.07.2025 (12 days) - $78 - 51% off
Expired
9:54 PM - 11:59 PM Frontier
4 hr 5 min ORD-LAS
0 stops
V
9:54 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 5 min
11:59 PM Harry Reid International Airport (LAS)
 
Expired
3:50 PM - 9:48 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:50 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:48 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 10.27.2025 - 10.31.2025 (4 days) - $78 - 51% off
Expired
9:54 PM - 11:59 PM Frontier
4 hr 5 min ORD-LAS
0 stops
V
9:54 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 5 min
11:59 PM Harry Reid International Airport (LAS)
 
Expired
3:45 PM - 9:43 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:45 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:43 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 10.27.2025 - 11.07.2025 (11 days) - $78 - 51% off
Expired
9:54 PM - 11:59 PM Frontier
4 hr 5 min ORD-LAS
0 stops
V
9:54 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 5 min
11:59 PM Harry Reid International Airport (LAS)
 
Expired
3:50 PM - 9:48 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:50 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:48 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 11.02.2025 - 11.07.2025 (5 days) - $78 - 51% off
Expired
10:43 PM - 12:44 AM Frontier
4 hr 1 min ORD-LAS
0 stops
V
10:43 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 1 min
12:44 AM Harry Reid International Airport (LAS)
 
Expired
3:50 PM - 9:48 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:50 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:48 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 11.03.2025 - 11.07.2025 (4 days) - $78 - 51% off
Expired
10:43 PM - 12:44 AM Frontier
4 hr 1 min ORD-LAS
0 stops
V
10:43 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 1 min
12:44 AM Harry Reid International Airport (LAS)
 
Expired
3:50 PM - 9:48 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:50 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:48 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 11.09.2025 - 11.14.2025 (5 days) - $78 - 51% off
Expired
10:43 PM - 12:44 AM Frontier
4 hr 1 min ORD-LAS
0 stops
V
10:43 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 1 min
12:44 AM Harry Reid International Airport (LAS)
 
Expired
3:50 PM - 9:48 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:50 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:48 PM Chicago O'Hare International Airport (ORD)
Chicago - Las Vegas - 11.10.2025 - 11.14.2025 (4 days) - $78 - 51% off
Expired
10:43 PM - 12:44 AM Frontier
4 hr 1 min ORD-LAS
0 stops
V
10:43 PM Chicago O'Hare International Airport (ORD) Travel time: 4 hr 1 min
12:44 AM Harry Reid International Airport (LAS)
 
Expired
3:50 PM - 9:48 PM Frontier
3 hr 58 min LAS-ORD
0 stops
V
3:50 PM Harry Reid International Airport (LAS) Travel time: 3 hr 58 min
9:48 PM Chicago O'Hare International Airport (ORD)

To buy these tickets, go to your favorite flight booking site or directly to the airline's websites.

Check out the other great flight deals:

Cheap flights - New York - Barcelona - only $282 RT - 50% off
More See more
SHARE