For prices as low as $5/pp, you can find flights to Illinois depending on where you are departing from. On average, flights to Illinois cost $532/pp.
Chicago is about 885% more popular to visit than any other city in Illinois, according to momondo users. When visiting Chicago, it is recommended to fly into Chicago O'Hare Intl Airport, where you can typically get the cheapest prices and the most convenient travel options into the city.
Many visitors who travel to Illinois find themselves making a stop at popular landmarks such as Magnificent Mile, Grant Park, and McCormick Place.
The closest airport to Magnificent Mile is Chicago O'Hare Intl Airport, and would make for the quickest drive. For those interested in a secondary airport to fly into, consider looking at flights heading to Chicago Midway Airport.
Temperatures in Illinois can vary between 23 °F and 73.4 °F based on the time of year. Typically, the coldest month in Illinois will be January, and the warmest month will be July. It is also worth noting that those looking to avoid rain and/or snow should consider traveling to Illinois in January, February, and December, as that is when precipitation is least likely.
Currently, United States travel restrictions include travel to Illinois. The United States has restricted the entry of all foreign nationals who have passed through or have been in Austria, Brazil, Belgium, China, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Iran, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, or the United Kingdom (excluding overseas territories outside of Europe), in the past 14 days. US citizens and permanent residents who have passed through or have been in any of the above countries in the past 14 days may still enter the United States, but must arrive at one of the following airports: Atlanta (ATL), Boston (BOS), Chicago (ORD), Dallas, (DFW), Detroit (DTW), Honolulu (HNL), Los Angeles (LAX), Miami (MIA), New York (JFK or EWR), San Francisco (SFO), Seattle (SEA), and Washington (IAD). Family members of US citizens and permanent residents, and certain other limited categories of visa holders (such as UN staff and diplomats) may also enter; however a Presidential Executive Order of June 22 means that further restrictions on certain visas (H1-B, H2-B, J and L) will be put in place from June 24. To see if you are affected please refer to the US Government’s travel page. Travelers who are allowed to enter the United States but have passed through or have been in any of the countries named above must quarantine for 14 days once they reach their final destination. If you are planning to travel to Illinois at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.