C$ 237 Cheap flights to Illinois

The majority of momondo users who fly to Illinois tend to spend time in Chicago, which is visited 100% more often than other cities. When flying to Chicago, the most popular airport to fly into is Chicago O'Hare Intl Airport.

Magnificent Mile is closest to Chicago O'Hare Intl Airport. Those looking for an alternative airport option near Magnificent Mile could try flying into Chicago Midway Airport.

The most often visited landmarks in Illinois are Magnificent Mile, Allstate Arena, and River North, among many others that can be found in the area.

Illinois typically has a temperature range from -5 °C(January) to 23 °C(July). Those looking to avoid rain and/or snow while visiting Illinois should plan their trip in January, February, or December, as these months are relatively less likely to have precipitation.

Air Canada is the most popular airline offering flights to Illinois, with 52% of our users opting to fly with them when travelling to Illinois. Other popular options include United Airlines and Porter Airlines. There are a total of 7 different airlines flying to Illinois.

Flights to Illinois have been found on momondo for as low as C$ 155 per ticket recently. However, the average price tends to be C$ 953 and anything for C$ 769 or less is a good deal. C$ 3,939 is the most expensive flight we’ve seen in the past week, though you may be able to avoid this price depending on what airport you fly from, what airline you choose, and how far in advance you book your flights.

If your travel plans are flexible and you’re looking to save money on flights to Illinois, then be sure to book your departure on a Friday. Flying out on a Friday, as well as a Saturday, is your best option. Departing on a Tuesday tends to be the most expensive day of the week to fly to Illinois.

Prices for flights to Illinois refresh daily.

There are 10 operators available for flights to Illinois as of April 2026.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Illinois.

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.