Avg. Flight Duration 2h 35m. Distance 851 miles.
There are 1,026 (nonstop) flights between Chicago and Boston per week, averaging 158 per day.
High season is considered to be July. The cheapest month to fly is January.
For Chicago to Boston, Tuesday is the cheapest day to fly on average and Sunday is the most expensive.
Book at least 1 week before departure in order to get a below-average price.