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Home Flights North America USA Cheap flights to Illinois, United States

Flights to Illinois in 2021

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
Popular inDecemberHigh demand for flights, 19% potential price rise
Cheapest inAprilBest time to find cheap flights, 5% potential price drop
Average price$159Average for round-trip flights in June 2021
Round-trip from$105From Las Vegas McCarran to Illinois
One-way from$10One-way flight from Las Vegas to Illinois

COVID Restrictions

View COVID Travel Restrictions for Illinois

Can I fly to Illinois right now?

Travel to Illinois is currently restricted due to COVID-19. The restrictions for Illinois are based on the United States restrictions which are: Entry restrictions

The United States has restricted the entry of all foreign nationals who have passed through or have been in China, Iran, Most European Countries (Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, Monaco, San Marino, Vatican City), the UK, Ireland, Brazil and South Africa in the past 14 days. With the exception of certain travelers which includes certain family members of US citizens or permanent residents including; spouses, children (under the age of 21), parents (provided that his/her US citizen or permanent resident child is unmarried and under the age of 21), and siblings (provided that both the sibling and the US citizen or permanent resident are unmarried and under the age of 21); There is also an exception for travelers with the following visas: A-1, A-2, C-1, C-1/D, C-2, C-3, CR-1, CR-2, D, E-1 (as an employee of TECRO or TECO or the employee's immediate family members), G-1, G-2, G-3, G-4, IR-1, IR-4, IH-4, NATO-1 through NATO-4, or NATO-6 visa; Members of the US Armed Forces, spouses, and children of members of the US Armed Forces; Travelers with invitation of the USA government for a purpose related to the containment/mitigation of the Coronavirus (COVID-19); Travelers with documents issued by the US Department of Homeland Security, US Customs and Border Protection, or US Department of State indicating that the traveler is exempt from the restriction; B1 crew crewmembers that are engaged in lightering, Outer Continental Shelf (OCS) activity, wind farm activity, private air/sea crew and other similar crewmember activities; Students with an F-1 or M-1 visa and their F-2 and M-2 dependents, if they arrive from or have been in Ireland, the UK or Schengen Area in the past 14 days.

Entry requirements

All travelers, 2 years of age or older (including US citizens and transit passenger) must present a negative COVID-19 viral or antigen test result issued 72 hours prior to departure or have a proof of recovery from the virus within the last 90 days prior to boarding the plane. Travelers must complete a disclosure and attestation form before departure. Exemptions or waiver to the testing requirements may be granted by the CDC on an extremely limited basis when emergency travel (like an emergency medical evacuation) must occur to preserve someone’s life, health against a serious danger, or physical safety and testing cannot be completed before travel. US citizens and permanent residents arriving from the UK must present a medical certificate with a negative COVID-19 PCR or antigen test result issued within 72 hours prior to departure. Travelers arriving in New York State must complete the Traveler Health Form. Travelers arriving in Massachusetts must complete the Massachusetts Health Form.

Quarantine requirements

Travelers are advised to get tested 3-5 days after travel and stay home and self-quarantine for 7 days after travel. Even if they test negative, they must still stay home and self-quarantine for the full 7 days. If the test is positive, isolate to protect others from getting infected.​​ Travelers who did not get tested, are advised to stay home and self-quarantine for 10 days after travel.​

All other info

Travelers are subject to COVID-19 measures set by the state/territory of their final destination. For more information go to CDC website.

If you are planning to travel to Illinois from an unrestricted area, please consider travel safety tips during this time.
Hide COVID Travel Restrictions for Illinois

Cheapest Prices for Illinois flights by month

The cheapest ticket to Illinois found for each month in 2021 based on historical flight searches by Cheapflights users.
January
$147
February
$143
March
$172
April
$188
May
$181
June
$203
July
$221
August
$193
September
$177
October
$181
November
$177
December
$177
Currently, the cheapest month for flights to Illinois is February. The most expensive month for flights is July. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

When is the best time to fly to Illinois?

Average Chicago flight ticket prices and weather conditions for 2021 and 2022 by month.
LAS - CHI
Price
$143 - $294
CHI
Temperature
33.8 - 84.2 °F
CHI
Rainfall
0.67 - 4.29 inches
Flying to Illinois in February is usually considered the best time to fly. However, you will find other deals are always available year round. July sees the temperatures in Illinois peak to their warmest. May tends, on average, to see the most amount of rainfall.

When is the best time to book a flight to Illinois?

The best time to book flights to Illinois is 20 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Which day is cheapest to fly to Illinois?

The cheapest flights to Illinois are usually found when departing on a Friday. The departure day with the highest cost at present is Sunday.

What time of day is cheapest to fly to Illinois?

At the moment, flights in the evening are likely to offer the best value for money for your Illinois trip. A flight in the morning will more often than not be of higher cost.

Brush up on your American history before your flight to Chicago: Home of President Abraham Lincoln, Lake Michigan, and ‘da Chicago Bears, Illinois has something for everyone. Whether you’re a history buff or a sports fanatic, it’s worth booking flights to Illinois.

The 21st state, located is the heart of the Midwest, is easy to get to thanks to two airports and one of the largest train stations in the country. Flights to Illinois are serviced by major airlines and Amtrak trains head right into the center of Chicago.

In between shopping and sports, make sure to visit one of Illinois’ numerous museums before boarding your Illinois flight home. The Burpee Museum of Natural History in Rockford features dinosaur fossils while the Abraham Lincoln Presidential Library and Museum in Springfield is the largest presidential library in the country. Tourists booking Illinois flights to Chicago can explore the John G. Shedd Aquarium, the Field Museum of Natural History, the Art Institute of Chicago, and the Museum of Science and Industry (Chicago).

Book a flight to Illinois to experience a plethora of cultures wrapped into one state.

Popular Destinations in Illinois

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What is the climate like in Illinois?

Winters along the Great Lakes are long and cold. From late November into April, there is plenty of snow, icy winds, and sub-freezing temperatures, but it’s also the best time to find cheap flights to Illinois. Conversely, July and August can be hot and sticky and good Illinois flight and hotel deals are usually available. Spring and fall tend to have perfect weather and are great times to visit, although the tornado season is March through May.Chicago summers can have temperatures well into the 90s with humidity to match. Winters are cold and raw with temperatures in the teens and occasional blizzards. Mild winters are not uncommon, but if booking Illinois flight and travel plans during the winter it’s advisable to pack with snow and cold in mind.

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When is the best time to fly to Illinois?

Peak Season:

Winter is a prime time for skiing and snowmobiling in Illinois. Summer is the peak of the festival season in the Chicago area with major events taking place in the parks and neighborhoods every weekend, despite the heat and humidity. While many tourists gather on the great state of Illinois during the summer season, it’s more likely cheap flights to Illinois will be available during the winter months.

Off Season:

September can be the most enjoyable and mildest month of the year to visit Chicago, but there is less going on during this period. Fall is a wonderful time to visit the rest of the state and enjoy the milder temperatures and changing foliage. January to March is when Chicago is least busy and deals on hotels are usually attainable. However, it can be cold and windy.

Find cheap flights to Illinois

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What is the best way to travel around Illinois?

A tough city to drive in, Chicago has convenient public transportation, taxis are easy to come by, and many areas are a pleasure to walk through. The Chicago Transit Authority operates the “L” (or “El”) a system of elevated trains that run 24 hours a day. There is also a River Bus that runs during rush hour in the summer, and the city is becoming increasingly bike friendly.

Except for Chicago, Illinois is mostly a quiet, rural state. Yet Amtrak trains, numerous commuter railroads, and, to a lesser extent, buses make getting around on public transportation feasible. Cycling is also generally easy on the state’s flat plains.

Once you reach your destination, check for local transportation, but be prepared to rent a car.

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Alternative, similarly priced destinations

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Cheapest flights to USA

Not set on Illinois? See the cheapest flights to United States. Airfare prices updated on June 22, 2021.
Home Flights North America USA Cheap flights to Illinois, United States