Cheap flights to Illinois

Most popular in	January	High demand for flights, 5% potential price rise
Cheapest in	March	Best time to find cheap flights, 2% potential price drop
Average price	$1354	Price for this month
Cheapest price	$1059	From Sydney to Chicago

Cheapest prices for Illinois flights by month

January

$1809

February

$1372

March

$1353

April

$1620

May

$1588

June

$1771

July

$1657

August

$1585

September

$1549

October

$1403

November

$1369

December

$1781

March is currently the cheapest month to fly to Illinois. At this moment in time January is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

When is the best time to fly to Illinois?

Choose a month below to see average flight price and weather conditions.

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Base

Price	1185 - 2424 AUD
Temperature	0.6 - 29 °C
Rainfall	17.4 - 108.9 mm

Flying to Illinois in March 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 flights to Illinois?

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights to Illinois. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Days before departure

Which day is cheapest to fly to Illinois?

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

What time of day is cheapest to fly?

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

Sitting along the banks of the Mississippi River and Lake Michigan, Illinois’s accessible location has for centuries made it an important hub. Historically emigrants from Mexico, Ireland and Poland would make the long journey over in search of work and a new home. Abraham Lincoln was among those who called Illinois home and the state honoured him by naming the small city of Lincoln after him – before he became president.

Most travellers booking flights to Illinois would probably pick Chicago as their city of choice for its renowned restaurant scene and shopping but there’s so much more to see in including 6,900 kilometres of shoreline and more than 50 state parks, making it one of the most scenic states in the US.

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Illinois climate

Illinois’s winters are very cold and long with snow and icy winds from late November through to April. Summers, especially July and August, the weather tends to be hot and humid. The best times to visit is when the weather is perfect, in spring and autumn; tornado season can occur anytime between the months of March and May. Chicago’s summers are humid with highs of 30 degrees (Celsius) or more and its winters are bitterly cold.

When to fly to Illinois

Peak Season:
Winter is peak season in Illinois for skiing and snowmobiling. In summer many different festivals take place in Chicago’s parks and neighbourhoods almost every weekend, making it difficult to find a cheap Illinois flight.

Off Season:
The best month to book a cheap Illinois flight is September, which is also the mildest month. Autumn is visually the prettiest time to visit when the temperature is still mild and the foliage is changing. The quietest months in Chicago are from January to March but they can also be the coldest and windiest.

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Getting around Illinois

Public transportation is reliable and taxis are easy to find. Driving is not recommended because of heavy traffic and parking is almost impossible to find. The El, a system operated by The Chicago Transit Authority consists of elevated trains running 24 hours a day. During the summer rush hour a River Bus is available.