• Flights
  • Packages
  • Hotels
  • Cars
Round-trip
Coach

Refine your search by airline, by city or airport or direct flights


Book with Confidence: 40M+ Travelers, 20+ years of Expertise
Price Match Promise
Find great flight deals to destinations worldwide
24/7 Customer Support
Speak to our travel experts: anytime, anywhere
ClubMiles Rewards
Earn points and air miles to maximize your rewards
Easy Cancellations
Convenient options online and 24/7 Customer Support

When’s a good time to book a flight from Boston to Chicago?

What’s the cheapest day of the week to fly from Boston to Chicago?

What is the cheapest month to fly from Boston to Chicago?

‡This information is based on historical data from the last 365 days.

Finding Affordable Flights from Boston to Chicago
  • Plan Ahead - One of the keys to securing cheap flights from Boston to Chicago is to plan your trip well in advance. Airlines often offer lower prices for those who book tickets months ahead. Keep an eye on special promotions and sales events, which can yield significant savings.
  • Flexibility is Key - Being flexible with your travel dates can also lead to substantial cost savings. Consider flying during off-peak seasons or on weekdays when prices tend to be lower.
  • Set Price Alerts - To keep tabs on flight prices, consider setting up fare alerts. These alerts will notify you when fares from Boston to Chicago drop, giving you the opportunity to grab cheap deals.
  • Consider Nearby Airports - If Chicago has multiple airports, check the prices at each one. Sometimes, flying into a nearby airport and then taking a short train or bus ride to your destination can be a much cheaper option.
  • Bundle and Save - Booking your flight and accommodation together as a package can often result in significant savings. CheapOair offers these bundled deals, so make sure to explore this option.

When is the Cheapest Time to Book Flights from Boston to Chicago?

Got flexible travel dates? Use our flight data from the past year to discover ideal times to fly from Boston to Chicago. Find out which months and days typically offer lower fares and score our best savings.

CheapOair provides the predicted prices for one-way trips or round-trips with a duration of 7 days for domestic and 14 days for international trips based on historical data and available flight information. Graphs are estimates only. Prices are subject to change and can't be guaranteed until ticketed.
Estimated price for
Round-trip

‡Graphs are estimates only. Based on historical data and available flight information. Prices are subject to change and cannot be guaranteed until ticketed.

What Our Customers Say About Our Service?

Submit A Review
  • Dec 10, 2025 Dipender Panwar I want to recognize the outstanding service provided by Jochim. His professionalism, attention to detail, and genuine customer care have consistently stood out. Interactions with him are always clear, patient, and solution focused. Team members like Jochim make a real difference and reflect positively on the organization.

    Read More

  • Aug 31, 2025 Ray Hobson Very reliableThis was my first time using this site and I was very please with how everything was handled. Right after I booked my flight I got a call from one of the associates letting me know i didn't pick out my seats, and choose my seat for my trip there and back from my destination. I was kept up to date in my flight information and they made sure I got my boarding pass. My trip was very stress free. I will be using them again. Thank you!

    Read More

  • Aug 28, 2025 MariaEsperanza Estilo Nicko Went Above and BeyondI had to change the return flight of two out of four passengers in our group. Because only half of the group need to travel differently, it took several calls to Iberia Airlines directly and because of the time difference, Nicko coordinated and helped me over a couple of days. Throughout the experience, he explained what he was doing and why he needs to put me on hold and why he needs to call me back the following day, He was very knowledgeable, professional and empathetic to my predicament. Nicko owned the issues and the process and was very transparent with cost and every details of the transactions. I am very grateful and because of him, I will always trust CheapOAir with my travel needs. -Maria E.E.

    Read More

Boston to Chicago Flight Route Information

Travel Distance:858 Miles
Airlines Flying This Route: American Airlines, Spirit Airlines, United Airlines
Avg. Flight Duration:08.21 Hours

Insights About Flying from Boston to Chicago

Q. Which is the high season to travel from Boston to Chicago?

A. The month of August is considered the high season for flying from BOS to CHI. Traveling during the high season can affect ticket prices and availability, making this data crucial for trip planning.

Q. How many direct flights are available from BOS to CHI?

A. There are a total of 990 direct flights from Boston to Chicago. For travelers seeking convenience and shorter travel times, this data is important when choosing flight options.

Q. Which is the low season to travel from Boston to Chicago?

A. November, December, March, June, September is considered the low season for traveling from Boston to Chicago, Illinois. Travelers looking for cost-effective options and fewer crowds may consider traveling during this period.

Q. How many daily flights are there between Boston to Chicago?

A. There are as many as 33 daily flights available for travelers between BOS to CHI. This data offers flexibility in choosing departure times that best suit your schedule.

Q. At what time does the last flight depart to Chicago?

A. The last flight to Chicago typically departs between 9:00PM - 10:00PM. Travelers who prefer late-night departures will find this information valuable for planning their journey.

Q. What percentage of travelers spent an average of 1 days in Chicago, Illinois?

A. Approximately 42.55% of travelers spent an average of 1 days exploring Chicago. This information can assist in planning the duration of your stay in Chicago

Q. What percentage of BOS to CHI flyers traveled with kids under 14?

A. About 6% of passengers on flights from Boston to Chicago were accompanied by children under the age of 14. This information is useful if you're planning a family trip and want to know how common it is to travel with young children on this route.

Q. What percentage of Boston to Chicago travelers were over 60 years old?

A. A notable 11% of travelers were aged 60 or older. This statistic provides insights for senior travelers or those seeking a mature travel demographic.

Q. What percentage of BOS to CHI travelers were millennials?

A. Millennials make up a significant portion of travelers on this route, accounting for 43% of all passengers. If you're a millennial looking to connect with like-minded travelers, this statistic might interest you.

Q. What percentage of Boston to Chicago travelers were female?

A. Almost half of the passengers, approximately 51% were female. Knowing the gender distribution can be useful for solo female travelers or those interested in gender-related travel insights.

Q. What percent of Boston to Chicago travellers booked first or business class?

A. 13% of travelers booked first or business class on this route.

Q. At what time the earliest flight departs from Boston?

A. The earliest flight departs at 7:00AM - 8:00AM.

Q. What is the price range of a Boston to Chicago flight?

A. Boston to Chicago Flight Prices usually vary between 10 - 69.76.

Q. On which days one can have the most flight options in Chicago?

A. Monday offer the most flight options in Chicago.

§ All flight facts are based on last 3 months' data except the highest and lowest booking months that are based on last 3 months' data.

Cheap Flights from Boston to Chicago

Fly to the Windy City for less

Things to know before you book your flights from Boston to Chicago

A guide to Chicago

Chicago is an international center of technology, industry, and finance. The metropolitan city is a cultural hub with a 24*7 nightlife, extensive shopping venues, and a thriving culinary scene. Chicago is home to many state-of-the-art museums, live performance venues, and theater companies. The city is home to a diverse local populace with multiple ethnic neighborhoods, namely, Little Italy, Little Seoul, Puerto Rican Paseo Boricua, Chinatown, and Little Vietnam. Food lovers must not forget to grab a bite as they explore these vibrant neighborhoods and get a taste of the world, in cosmopolitan Chicago.

Chicago hosts several annual festivals around the year. Few of the major festivals held in Chicago are Chicago Wine Fest (April), 57th Street Art Fair (June), Chicago Blues Festival (June), Taste of Chicago (July), Chicago Food Truck Festival (July), Chicago Craft Beer Festival (July), Lollapalooza Chicago (August), Chicago Hot Dog Fest (August), Illinois State Fair (August), Chicago Jazz Festival (September), Chicago World Music Festival (September), and Windy City Wine Festival (September). Visitors can book Boston to Chicago flight tickets keeping in mind such prominent events.

Major attractions in Chicago

  • The Art Institute of Chicago
  • Millennium Park
  • Navy Pier
  • 360 Chicago
  • Chicago Riverwalk and Lakefront Trail
  • Willis Tower SkyDeck
  • Lincoln Park
  • Museum of Science and History
  • Michigan Avenue and the Magnificent Mile
  • Field Museum of Natural History

When to Visit Chicago

Weather-wise, the best time to visit Chicago is between September and October and from April through May. However, summer is the peak tourist season when the city is flooded with tourists. It is advisable to book your flights from Boston to Chicago in advance.

Share your Travel experience:

Once you�re done sharing photos from your trip to Chicago, do not forget to share your Chicago experience with us through the CheapOair review section. Help and inspire other travelers by sharing your valuable opinion. Remember, your reviews can help us make our service better.

Download Our App

Get CheapOair deals on the GO!

Download
Check Your Flight Status

Get there on time, every time!

Check Status