Fly from
Fly to
Route
Depart
Return
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Mon 21/9
7:45 p.m.-10:36 p.m.
Nonstop3h 51m
Calgary
Fri 25/9
6:30 a.m.-2:55 p.m.
1 stop7h 25m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 13/8
7:45 p.m.-10:36 p.m.
Nonstop3h 51m
Calgary
Mon 24/8
6:00 a.m.-9:29 p.m.
1 stop14h 29m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Mon 14/9
12:40 p.m.-8:32 p.m.
1 stop8h 52m
Calgary
Fri 18/9
7:45 a.m.-6:19 p.m.
1 stop9h 34m
ChicagoCalgary
MDW - YYC
MDWYYC
Chicago Midway
Fri 23/10
12:30 p.m.-8:54 p.m.
1 stop9h 24m
Calgary
Mon 26/10
7:45 a.m.-4:50 p.m.
1 stop8h 05m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Mon 14/9
11:17 a.m.-8:32 p.m.
2 stops10h 15m
Calgary
Thu 24/9
6:45 a.m.-4:52 p.m.
1 stop9h 07m
ChicagoCalgary
MDW - YYC
MDWYYC
Chicago Midway
Sun 6/9
9:24 a.m.-8:35 p.m.
2 stops12h 11m
Calgary
Fri 11/9
6:35 a.m.-1:20 p.m.
1 stop5h 45m
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 26/10
8:15 p.m.-11:54 a.m.
1 stop16h 39m
Calgary
Wed 28/10
6:20 a.m.-8:59 p.m.
1 stop13h 39m
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Wed 9/9
5:00 p.m.-11:06 p.m.
1 stop7h 06m
Calgary
Wed 16/9
12:33 p.m.-12:34 a.m.
1 stop11h 01m
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Sun 1/11
6:30 a.m.-12:47 p.m.
1 stop7h 17m
Calgary
Mon 30/11
2:00 p.m.-12:36 a.m.
1 stop9h 36m
St. LouisCalgary
STL - YYC
STLYYC
Lambert-St Louis
Mon 3/8
4:57 p.m.-3:15 p.m.
2 stops23h 18m
Calgary
Thu 13/8
7:00 a.m.-5:37 p.m.
1 stop9h 37m
Currently, November is the cheapest month in which you can book a flight from Illinois to Calgary (average of C$ 84). Flying from Illinois to Calgary in September is currently the most expensive (average of C$ 895). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 38% on flights from Illinois to Calgary by exploring options for tickets at noon.
The most flights from USIL to YYC are scheduled on a Monday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).
To ensure you get the cheapest price possible for a flight from Illinois to Calgary, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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