Cheap flights from Chicago O'Hare Intl Airport to Boston from $99

In general, January is the cheapest month to fly from Chicago O'Hare Intl Airport to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $205. If you aren’t able to travel during the month of January, then book flights to Boston from Chicago O'Hare Intl Airport during September instead. Flights to Boston in September, while not as cheap as those in January, still average around $211.

The cheapest day to depart from Chicago O'Hare Intl Airport to Boston is on a Saturday when prices can be found for as low as $246. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Monday is $318.

According to our data, the cheapest time of day to fly to Boston is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Boston in the evening for as low as $233. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Boston, so prices are often more expensive at around $297 per ticket.

Fly from Chicago O'Hare Intl to Boston Logan Intl for the best Chicago O'Hare Intl - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $246 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Chicago O'Hare Intl Airport for as low as $215 on momondo.

There are 4 cabin classes available to choose from on Chicago O'Hare Intl Airport to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta and United Airlines are the most popular carriers operating from Chicago O'Hare Intl to Boston Logan Intl

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Boston from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 4 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between Chicago and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 154 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 21% of their flights experiencing any sort of delay.

54 flights are operational daily from Chicago O'Hare Intl Airport to Boston as of July 2026. The most popular departure time for this route is 10:00AM, with 39% of flights per day taking off at noon.

As of July 2026, there are 383 flights per week flying from Chicago O'Hare Intl Airport to Boston. The most common day of the week flights depart is Tue, with 20% of flights taking off on this day.