
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $275 (Trip.com) |
One-way from | $133 (United Airlines) |
Popular in | July |
Cheapest in | January |
Average price | $361 |
Good round-trip deal | $416 or less |
Good one-way deal | $174 or less |
Fly from
Fly to
Route
Depart
Return
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Sat 7/11
7:45 pm-10:37 pm
Nonstop3h 52m
Calgary
Sat 7/18
6:00 am-9:39 pm
1 stop14h 39m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 8/13
2:00 pm-11:04 pm
1 stop10h 04m
Calgary
Mon 8/17
7:45 am-6:19 pm
1 stop9h 34m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 10/15
8:40 am-11:28 am
Nonstop3h 48m
Calgary
Mon 10/19
6:30 am-4:58 pm
1 stop9h 28m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Tue 9/1
7:45 pm-10:36 pm
Nonstop3h 51m
Calgary
Sun 9/6
6:00 am-10:00 pm
1 stop15h 00m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Tue 8/11
7:45 pm-10:36 pm
Nonstop3h 51m
Calgary
Wed 8/19
6:00 am-10:46 pm
1 stop15h 46m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Thu 8/13
7:45 pm-10:36 pm
Nonstop3h 51m
Calgary
Mon 8/24
6:00 am-7:30 pm
1 stop12h 30m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Tue 8/18
7:45 pm-10:36 pm
Nonstop3h 51m
Calgary
Tue 8/25
1:27 pm-9:29 pm
1 stop7h 02m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Sun 9/6
7:00 am-9:48 pm
1 stop15h 48m
Calgary
Thu 9/10
11:55 pm-9:00 am
1 stop8h 05m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Tue 12/8
11:10 am-11:13 pm
2 stops13h 03m
Calgary
Fri 12/11
7:15 am-5:57 pm
1 stop9h 42m
ChicagoCalgary
ORD - YYC
ORDYYC
Chicago O'Hare Intl
Sun 7/5
6:00 am-9:48 pm
1 stop16h 48m
Calgary
Tue 7/14
6:00 am-10:49 pm
1 stop15h 49m
Currently, November is the cheapest month in which you can book a flight from Illinois to Alberta (average of $60). Flying from Illinois to Alberta in September is currently the most expensive (average of $544). 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.
It’s optimal to fly from Illinois to Alberta at noon. By choosing this option you can save up to 52% on the cost of your flight, compared to a flight in the morning.
The most flights from USIL to CAAB are scheduled on a Thursday (14 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (11 on average).
The price you pay for your flight from Illinois to Alberta may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Travelers seeking maximum savings on their Illinois to Alberta flight should consider departing on Tuesday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Anonymous,May 2026
SEA - KOA
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Anonymous,May 2026
SEA - KOA
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Anonymous,May 2026
SEA - KOA
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Anonymous,May 2026
SEA - KOA
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Anonymous,May 2026
SEA - KOA
Entertainment
Overall
Food
Crew
Boarding
Comfort
Reviews
Anonymous,May 2026
SEA - KOA
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$110 | Average$433 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$114 | Average$285 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$123 | Average$428 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$135 | Average$284 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$233 | Average$451 | FlexibilityNo cancel fee | On-time71% |