Cheap flights from Chicago (CHI) to Illinois from $59

Yes, there are multiple flights from Chicago to Illinois for under $100. The cheapest flight booked recently is on American Airlines for just $99, but on average you can expect to pay $122.

Cheapflights has at least 20 direct flights from Chicago to Illinois under $100. A good price for a nonstop flight from Chicago to Illinois is less than $150.

There are currently 20+ open flights from Chicago to Illinois within the next 7 days for less than $200.

The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $59. However, be on the lookout for offers from Southern / Mokulele and Delta, as they are both options that can get you from Chicago to Illinois for a low price.

Most travelers choose Chicago O'Hare Intl - Lambert-St Louis, Chicago Midway - Lambert-St Louis or Chicago O'Hare Intl - Greater Peoria when deciding on the best route from Chicago to Illinois.

These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Chicago O'Hare Intl Airport flight would often be abbreviated as a ORD to ORD flight. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are other airports near this flight route and their unique identifiers/IATA codes.

The amount of baggage you can bring on your Chicago to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter Chicago to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on Chicago to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Illinois.

Yes. Cheapflights offers flight deals from Chicago to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from Chicago to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on Chicago to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The Chicago to Illinois flight deals you see on this page were last updated on 5/30.

Currently, February is the cheapest month in which you can book a flight from Chicago to Illinois (average of $244). Flying from Chicago to Illinois in June is currently the most expensive (average of $326). 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.