Find cheap United Airlines flights to Illinois from C$ 164

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Flight Deals

Cheap United Airlines Flight Deals to Illinois

 
Here are some of the best deals found on KAYAK recently from United Airlines to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip United Airlines flight deals from Canada to Illinois

Sun, 29 Mar - Fri, 10 Apr
United Airlines Logo
7:00 a.m. - 8:03 a.m.
YYZ
-
ORD
2h 03mdirect
United Airlines Logo
4:43 p.m. - 7:37 p.m.
ORD
-
YYZ
1h 54mdirect
C$ 261United Airlines
Sat, 4 Apr - Sat, 11 Apr
United Airlines Logo
6:10 a.m. - 8:00 a.m.
YUL
-
ORD
2h 50mdirect
United Airlines Logo
1:00 p.m. - 7:45 p.m.
ORD
-
YUL
5h 45m
1 stop
C$ 265United Airlines
Fri, 29 May - Mon, 1 Jun
United Airlines Logo
7:43 p.m. - 11:26 p.m.
YYZ
-
ORD
4h 43m
1 stop
United Airlines Logo
4:37 p.m. - 7:37 p.m.
ORD
-
YYZ
2h 00mdirect
C$ 282United Airlines
Wed, 1 Apr - Wed, 8 Apr
United Airlines Logo
2:45 p.m. - 3:48 p.m.
YYZ
-
ORD
2h 03mdirect
United Airlines Logo
9:05 a.m. - 11:49 a.m.
ORD
-
YYZ
1h 44mdirect
C$ 286United Airlines
Mon, 18 May - Tue, 19 May
United Airlines Logo
9:45 a.m. - 11:28 a.m.
YUL
-
ORD
2h 43mdirect
United Airlines Logo
12:55 p.m. - 12:13 a.m.
ORD
-
YUL
10h 18m
1 stop
C$ 292United Airlines
Thu, 26 Mar - Mon, 30 Mar
United Airlines Logo
6:00 a.m. - 8:00 a.m.
YUL
-
ORD
3h 00mdirect
United Airlines Logo
6:00 a.m. - 1:09 p.m.
ORD
-
YUL
6h 09m
1 stop
C$ 294United Airlines
Wed, 4 Mar - Wed, 11 Mar
United Airlines Logo
9:00 p.m. - 10:04 p.m.
YYZ
-
ORD
2h 04mdirect
United Airlines Logo
7:10 a.m. - 9:58 a.m.
ORD
-
YYZ
1h 48mdirect
C$ 295United Airlines
Mon, 1 Jun - Mon, 1 Jun
United Airlines Logo
2:45 p.m. - 3:50 p.m.
YYZ
-
ORD
2h 05mdirect
United Airlines Logo
9:15 p.m. - 11:59 p.m.
ORD
-
YYZ
1h 44mdirect
C$ 299United Airlines
Wed, 20 May - Mon, 25 May
United Airlines Logo
6:35 p.m. - 11:44 p.m.
YUL
-
ORD
6h 09m
1 stop
United Airlines Logo
6:04 p.m. - 9:26 p.m.
ORD
-
YUL
2h 22mdirect
C$ 299United Airlines
Mon, 18 May - Tue, 26 May
United Airlines Logo
6:35 p.m. - 11:44 p.m.
YUL
-
ORD
6h 09m
1 stop
United Airlines Logo
6:04 p.m. - 9:26 p.m.
ORD
-
YUL
2h 22mdirect
C$ 301United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flightC$ 175
Average price round-tripC$ 570
Best time to beat the crowds but there is an average 12% increase in price.
Flight from Calgary to Chicago
(price for this month)

KAYAK's insights & trends for flights to Illinois

Get data-powered insights and trends into flights to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Illinois?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Illinois from Canada found in the last 72 hours was to Chicago O'Hare Intl Airport, at C$ 340 round-trip. The most popular route is Vancouver Intl Airport (YVR) to Chicago O'Hare Intl Airport (ORD) and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 340.

What is the cheapest day to fly to Illinois?

The average price of all flights from Canada to Illinois clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Illinois is Friday when round-trip tickets can be as cheap as C$ 653. On the other hand, the most expensive day to fly is Sunday, when round-trip prices are C$ 972 on average.

What is the cheapest month to fly from Canada to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Canada to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Canada to Illinois is April, when tickets cost C$ 368 (return) on average. On the other hand, the most expensive months are February and May, when the average cost of round-trip tickets is C$ 772 and C$ 749 respectively.

How far in advance should I book a flight from Canada to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Canada to Illinois, you should book around 4 weeks before departure, which saves you about 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

FAQs for flying to Illinois with United Airlines

  • What is the average price for a flight to Illinois with United Airlines?

    The typical United Airlines fare to Illinois averages C$ 465 for a return flight and around C$ 328 for a one-way ticket.

  • Does United Airlines usually have the lowest fares for flights to Illinois?

    Porter Airlines frequently offers the lowest average return price for flights to Illinois, but fares can vary between airlines and dates. We recommend comparing all available options on KAYAK before booking your flight.

  • What other airlines fly to Illinois besides United Airlines?

    In addition to United Airlines, airlines such as Air Canada, Porter Airlines and WestJet also operate flights to Illinois. Check KAYAK to compare fares from these and other carriers.

United Airlines customer reviews

7.4
Good9,317 verified ratings
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
7.1Entertainment
Traveler rating:
Sort by:
A
2.0 Poor
Nothing also dont give to people that disgusting blanket and pilow.
G
6.0 Okay
it was a very short flight so my expectations were low.
A
6.0 Okay
Good until I was put on air canada flight Houston Vancouver not even one cookie
V
10.0 Wonderful
This is the best airline company on this planet!!!
A
2.0 Poor
So bad, flight was been cancelled due to aircraft problem, so ended up buying anothet ticket.
W
10.0 Wonderful
As great a red-eye flight as red-eye flights can be.
T
10.0 Wonderful
Better plane on short flight than Øn longer flights
A
8.0 Very good
Once boarding started it was pretty quick. Food was inedible; cold and salty..
O
6.0 Okay
Okay
C
10.0 Wonderful
Better instructions to connect to entertainment via bluetooth earpods.

Everything you need to know for your flight to Illinois