Prices from $405 to $405
We'll show you the best deals by comparing tons of flights from Illinois to Boise across a wide range of airlines and travel agents. Compare the cheap flights along this route.
Travel information for Illinois to Boise
Flights available forIllinois to Boise2
Cheapest flight forIllinois to Boise$404
Average flight price forIllinois to Boise$426
Flight time forIllinois to Boise4 hrs 11 mins