Bookable via Google flights or on Priceline
ORD-LAS example dates:
3rd-7th Sep
3rd-8th Sep
3rd-11th Sep
5th-8th Sep
5th-11th Sep
10th-14th Sep
10th-19th Sep
11th-14th Sep
11th-19th Sep
11th-20th Sep
12th-19th Sep
12th-20th Sep
13th-21st Sep
18th-22nd Sep
18th-23rd Sep
18th-26th Sep
19th-23rd Sep
19th-26th Sep
20th-23rd Sep
20th-27th Sep
23rd-27th Sep
24th-27th Sep
LAS-ORD example dates:
7th-10th Sep
7th-11th Sep
7th-12th Sep
7th-13th Sep
13th-19th Sep
13th-20th Sep
14th-18th Sep
14th-19th Sep
14th-20th Sep
14th-23rd Sep
19th-23rd Sep
21st-25th Sep
21st-26th Sep
22nd-25th Sep
22nd-26th Sep
23rd-26th Sep