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$64+ Cheap flights from Boston (BOS) to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CHI
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
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Find cheap flights from Boston to Chicago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Boston Logan Intl to Chicago are usually found in September or January, booked 85 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap flight deals from Boston to Chicago

Cheapest flights from Boston to Chicago
Explore the most affordable flight options available from Boston to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 27, 2026.

This Southwest deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:30 pm
BOS
-
MDW
Nonstop2h 45m
Southwest
Sat 5/96:05 pm
MDW
-
BOS
Nonstop2h 20m
Southwest
Deal found 2/24$129
This Priceline deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:35 pm
BOS
-
ORD
Nonstop3h 04m
Multiple Airlines
Thu 4/164:28 pm
ORD
-
BOS
1 stop8h 03m
Multiple Airlines
Deal found 2/26$129
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/112:00 pm
BOS
-
MDW
Nonstop2h 45m
Southwest
Wed 4/293:15 pm
MDW
-
BOS
Nonstop2h 20m
Southwest
Deal found 2/23$130
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:48 pm
BOS
-
ORD
Nonstop3h 12m
American Airlines
Sat 4/188:56 pm
ORD
-
BOS
Nonstop2h 29m
American Airlines
Deal found 2/25$130
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:00 am
BOS
-
ORD
Nonstop2h 59m
United Airlines
Sun 4/56:00 am
ORD
-
BOS
Nonstop2h 25m
United Airlines
Deal found 2/24$131
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/273:10 pm
BOS
-
MDW
Nonstop2h 45m
Southwest
Fri 4/37:00 pm
MDW
-
BOS
Nonstop2h 15m
Southwest
Deal found 2/26$132
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:30 am
BOS
-
ORD
Nonstop3h 00m
United Airlines
Mon 5/259:26 pm
ORD
-
BOS
Nonstop2h 33m
United Airlines
Deal found 2/24$132
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:15 am
BOS
-
MDW
Nonstop2h 50m
Southwest
Mon 4/137:00 pm
MDW
-
BOS
Nonstop2h 20m
Southwest
Deal found 2/25$133
This American Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:40 pm
BOS
-
ORD
Nonstop3h 10m
American Airlines
Mon 4/136:00 am
ORD
-
BOS
Nonstop2h 27m
American Airlines
Deal found 2/26$133
This Priceline deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:05 am
BOS
-
ORD
Nonstop3h 00m
Multiple Airlines
Wed 4/15:05 am
ORD
-
BOS
1 stop9h 23m
Multiple Airlines
Deal found 2/24$134
This Expedia deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:42 pm
BOS
-
ORD
1 stop10h 57m
Multiple Airlines
Mon 5/46:00 am
ORD
-
BOS
Nonstop2h 15m
Multiple Airlines
Deal found 2/25$135
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/174:25 pm
BOS
-
ORD
Nonstop3h 06m
Delta
Tue 3/247:00 am
ORD
-
BOS
Nonstop2h 25m
Delta
Deal found 2/26$136

Find flight deals from Boston to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$129
(Southwest)

One-way from

$64
(Southwest)

Popular in

March

Cheapest in

September

Average price

$232

Good round-trip deal

$233 or less

Good one-way deal

$102 or less
Provider with most accurate pricing for Boston Logan Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Chicago (CHI) flights.
Search Deals
From Boston Logan Intl to Chicago (CHI)
Search Deals
One-way flight from Boston Logan Intl to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 27, 2026.
Use the filters below to find and compare flights from Boston to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/2

7:15 am-9:25 am

Nonstop3h 10m

Chicago O'Hare Intl

Sun 4/5

6:15 am-9:40 am

Nonstop2h 25m

$137

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Fri 3/27

6:25 pm-8:25 pm

Nonstop3h 00m

Chicago Midway

Fri 4/3

7:00 pm-10:15 pm

Nonstop2h 15m

$147

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Tue 3/31

2:00 pm-3:45 pm

Nonstop2h 45m

Chicago Midway

Thu 4/2

3:30 pm-6:45 pm

Nonstop2h 15m

$152

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Fri 4/3

6:25 pm-8:25 pm

Nonstop3h 00m

Chicago Midway

Wed 4/15

7:45 am-11:00 am

Nonstop2h 15m

$152

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/2

7:15 am-9:25 am

Nonstop3h 10m

Chicago O'Hare Intl

Sat 4/11

7:00 am-10:25 am

Nonstop2h 25m

$157

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 6/3

7:35 am-9:27 am

Nonstop2h 52m

Chicago O'Hare Intl

Thu 6/4

7:00 am-10:35 am

Nonstop2h 35m

$157

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 3/30

6:00 am-7:59 am

Nonstop2h 59m

Chicago O'Hare Intl

Tue 3/31

6:01 pm-11:59 pm

1 stop4h 58m

$162

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 6/4

6:00 am-7:58 am

Nonstop2h 58m

Chicago O'Hare Intl

Sat 6/6

6:00 am-11:16 am

1 stop4h 16m

$177

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 3/27

8:45 am-1:15 pm

1 stop5h 30m

Chicago O'Hare Intl

Fri 4/3

6:00 am-9:25 am

Nonstop2h 25m

$185

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Thu 4/2

3:10 pm-4:55 pm

Nonstop2h 45m

Chicago Midway

Mon 4/13

9:00 am-4:05 pm

1 stop6h 05m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Compare providers for flights from Boston to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Chicago in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Chicago

How far ahead should I book a flight from Boston to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Chicago. Price data was last updated on February 20, 2026.

The best time to book flights from Boston to Chicago is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Boston to Chicago?

Currently, September is the cheapest month in which you can book a flight from Boston to Chicago (average of $91). Flying from Boston to Chicago in January is currently the most expensive (average of $123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to CHI?

Find hourly flight availability from Boston to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 27, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from Boston to Chicago by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Chicago. Price data was last updated on February 21, 2026.

Travelers seeking maximum savings on their Boston to Chicago flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Chicago

Explore weekly flight availability from Boston to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 27, 2026.

The most flights from BOS to CHI are scheduled on a Thursday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

How often are flights from Boston to Chicago delayed?

About 15% of weekly flights between Boston and Chicago have experienced delays in the past year, with the average delay time being 169 minutes.

What is the most punctual flight time for Boston to Chicago flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Chicago flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.

The best insider tips for Boston to Chicago flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Chicago trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated February 27, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Boston to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,301 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
8.0
Very good
4,301 reviews
Southwest
8.0
Very good
4,301 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Delta
7.9
Good
8,243 reviews
Southwest
8.0
Very good
4,301 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
United Airlines
7.4
Good
9,349 reviews
Southwest
8.0
Very good
4,301 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
American Airlines
7.2
Good
11,357 reviews
Southwest
8.0
Very good
4,301 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
JetBlue
7.2
Good
2,896 reviews
Southwest
8.0
Very good
4,301 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from Boston to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Chicago?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Chicago from Boston. Booking flights from Logan Intl (BOS) to Chicago should be relatively easy as there are 41 daily outbound flights to Chicago from 6 different airlines.

  • How long is the flight from Boston to Chicago?

    For as low as $162, Delta can have you in Chicago from Boston in 2h 59m. Airlines will cover a distance of 864 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Boston to Chicago round-trip?

    Our cheapest airline available from Boston to Chicago is JetBlue. Our recent data shows that you can find tickets from as low as $66 on this airline. Additional options worth looking into are Delta and Spirit Airlines, starting at $82 and $85 round-trip. You may be able to fly from Boston to Chicago for 71% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Boston to Chicago one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $47. Southwest flights start at $58 while deals on Delta start at $58 one-way.

  • What are the most popular routes from Boston to Chicago?

    Most travelers choose Boston Logan Intl - Chicago O'Hare Intl, Boston Logan Intl - Chicago Midway or Boston Logan Intl - Chicago Greater Rockford when deciding on the best route from Boston to Chicago.

  • What are the most reliable airlines from Boston to Chicago?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Chicago on time: ANA (89%), Emirates (87%), LATAM Airlines (84%).

  • What are the cheapest flights from Boston to Chicago?

    The cheapest flight price from Boston to Chicago is $66. On average you can expect to pay $832. The most popular route, (Boston Logan Intl - Chicago O'Hare Intl), can usually be booked for $96.

  • Can I find deals for flights from Boston to Chicago that include hotel bookings?

    Yes. In addition to deals on Boston to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Chicago.

  • Can I find deals for business class flights from Boston to Chicago?

    Yes. Cheapflights offers flight deals from Boston to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Chicago?

    Currently, September is the cheapest month in which you can book a flight from Boston to Chicago (average of $91). Flying from Boston to Chicago in January is currently the most expensive (average of $123). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lansing
Merrillville
Hammond
Porter
Benton Harbor

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Boston to Chicago

Discover the top 6 airlines that operate flights from Boston to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$66Average$173FlexibilityNo cancel feeOn-time62%
DeltaCheapest$82Average$306FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$85Average$162FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$117Average$226FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$117Average$262FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$127Average$258FlexibilityNo cancel feeOn-time71%

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