Best time to find cheap flights, 4% potential price drop
Average for round-trip flights in March 2021
From Sydney to Chicago
One-way flight from Sydney to Chicago
Cheapest prices for Illinois flights by month
May is currently the cheapest month to fly to Illinois. At this moment in time December 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?
SYD - CHI
$1,068 - $2,148
1 - 29 °C
17 - 109 mm
Flying to Illinois in May 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?
Booking 1 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.
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 Saturday.
What time of day is cheapest to fly to Illinois?
At the moment, flights in the morning are likely to offer the best value for money for your Illinois trip. A flight in the evening will more often than not be of higher cost.