Cheap flights from British Columbia to Illinois from $152

The cheapest month to fly to Illinois from British Columbia is in October. Flight prices, which tend to average around $270, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $307.

The cheapest day to depart from British Columbia to Illinois is on a Friday when prices can be found for as low as $436. Flights from British Columbia to Illinois on a Sunday will generally be more expensive and average around $661. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from British Columbia to Illinois during this time can be as low as $470. Flights at noon are often more expensive with an average ticket price of $519.

Fly from Vancouver Intl to Chicago O'Hare Intl for the best British Columbia - Illinois flight prices

You are more likely to see cheaper flights to Illinois from British Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $428 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from British Columbia for as low as $116 on momondo.

There are 4 cabin classes available to choose from on British Columbia to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Air Canada, Delta, and United Airlines are the most popular carriers operating from British Columbia to Illinois

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Illinois from British Columbia according to our data. Air Canada is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

The number of flights available between British Columbia and Illinois is 17 per day as of August 2026. The most frequent departure time is 1:00PM, with 41% of daily flights leaving in the afternoon.

121 flights are operational weekly from British Columbia to Illinois as of August 2026. The most popular departure day for this route is Sat, with 21% of flights per week taking off on this day.