ORD-NYC example dates:
4th-8th Jan
4th-9th Jan
5th-10th Jan
5th-11th Jan
6th-10th Jan
6th-11th Jan
6th-12th Jan
7th-11th Jan
7th-12th Jan
7th-13th Jan
8th-12th Jan
8th-13th Jan
9th-13th Jan
20th-24th Jan
30th Jan – 3rd Feb
30th Jan – 4th Feb
30th Jan – 5th Feb
1st-5th Feb
1st-7th Feb
2nd-8th Feb
3rd-7th Feb
3rd-8th Feb
4th-9th Feb
4th-10th Feb
5th-10th Feb
6th-10th Feb
NYC-ORD example dates:
4th-9th Jan
4th-10th Jan
5th-9th Jan
5th-10th Jan
5th-11th Jan
6th-11th Jan
6th-12th Jan
8th-12th Jan
8th-13th Jan
9th-13th Jan
9th-14th Jan
10th-14th Jan
30th Jan – 3rd Feb
30th Jan – 5th Feb
1st-5th Feb
1st-6th Feb
1st-7th Feb
2nd-6th Feb
2nd-8th Feb
3rd-9th Feb
4th-8th Feb
4th-9th Feb
4th-10th Feb
5th-9th Feb
5th-10th Feb
6th-10th Feb