How to find the cheapest flight from
Illinois to Boston (BOS)
How far in advance should I book a flight from Illinois to Boston?
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 26 days in advance, which can save you up to 23% on flights from Illinois to Boston compared to booking the week you need them. Waiting 26 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 $270. For sooner than that we have options available in the next 3 days from $316.
One-way flights to Boston from Illinois
The cheapest one-way flights from Illinois to Boston
8:05 am - 11:23 am
2:20 am - 6:37 am
9:20 am - 12:37 pm
Related info for your journey
Useful info, stats and facts about Illinois to Boston flights.
Arrival points for flights from Illinois to Boston
Destination information for Boston
Things to know before you go. Useful info for your trip from Illinois to Boston