Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Illinois. Flights to Illinois from Idaho in April are about $364 on average during April, but can be found for as low as $211.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 46% on flights from Idaho to Illinois compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $415. For sooner than that we have options available in the next 3 days from $525.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Illinois as you normally would.
||$104||$159||No cancel fee||62%|
||$147||$335||No cancel fee||75%|
||$150||$487||No cancel fee||N/A|
||$230||$462||No cancel fee||71%|
||$244||$480||No cancel fee||69%|