Cheap flights from British Columbia to Illinois from C$ 274

In general, May is the cheapest month to fly from British Columbia to Illinois. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 623. If you don’t want to visit Illinois in May, then you should wait until September to fly from British Columbia, when ticket prices are also cheap, with an average price of C$ 630.

According to our data, Wednesday is the cheapest day to fly to Illinois from British Columbia. The lowest ticket price found for a Wednesday departure recently was C$ 724. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Illinois is Sunday, with ticket prices averaging around C$ 942.

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from British Columbia to Illinois during this time can be as low as C$ 726. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 862 on average. Flights to Illinois from British Columbia at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 C$ 681 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 C$ 141 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.

United Airlines, Air Canada, and Delta 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 63% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

As of November 2026, 4 flights take off from British Columbia and land in Illinois each day. The most common flight departure time for this route is 1:00p.m., with 55% of daily flights taking off in the afternoon.

31 flights are operational weekly from British Columbia to Illinois as of November 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.