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$68+ Cheap flights from Chicago (CHI) to Boston (BOS)

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BOS
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Boston Logan Intl are usually found in August or September, booked 73 days in advance, depart on a Saturday or Wednesday and return on a Friday

Cheap flight deals from Chicago to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Boston (BOS). 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 July 1, 2025.

Round-trip from

$132
(Priceline)

One-way from

$68
(FlightHub)

Popular in

April

Cheapest in

August

Average price

$225

Good round-trip deal

$137 or less

Good one-way deal

$68 or less
From Chicago (CHI) to Boston Logan Intl
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One-way flight from Chicago (CHI) to Boston Logan Intl
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Highest demand for flights based on searches. 9% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Boston Logan Intl.
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Price to beat on a one-way flight from Chicago (CHI) to Boston Logan Intl.
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Find flight deals from Chicago to Boston

Cheapest flights from Chicago to Boston
Explore the most affordable flight options available from Chicago to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This Priceline deal was found by Cheapflights users on 6/29. 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 9/911:45 amORD - BOS
1 stop11h 10mMultiple Airlines
Sat 9/138:38 amBOS - ORD
1 stop9h 11mMultiple Airlines
Deal found 6/29$132
This Priceline deal was found by Cheapflights users on 6/29. 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.
Sat 8/212:20 pmORD - BOS
1 stop11h 19mFrontier
Thu 8/76:00 amBOS - ORD
1 stop8h 56mFrontier
Deal found 6/29$135
This JetBlue deal was found by Cheapflights users on 6/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/118:40 amORD - BOS
Nonstop2h 24mJetBlue
Wed 7/166:00 amBOS - ORD
Nonstop2h 55mJetBlue
Deal found 6/30$137
This Southwest deal was found by Cheapflights users on 6/30. 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 8/163:55 pmMDW - BOS
Nonstop2h 20mSouthwest
Mon 8/185:15 amBOS - MDW
Nonstop2h 30mSouthwest
Deal found 6/30$137
This American Airlines deal was found by Cheapflights users on 6/29. 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.
Thu 7/108:30 pmORD - BOS
Nonstop2h 44mAmerican Airlines
Sun 7/135:00 amBOS - ORD
Nonstop2h 58mAmerican Airlines
Deal found 6/29$139
This FlightHub deal was found by Cheapflights users on 6/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/155:05 amORD - BOS
1 stop13h 29mSpirit Airlines
Tue 7/228:39 pmBOS - ORD
1 stop13h 16mSpirit Airlines
Deal found 6/29$140
This CheapOair deal was found by Cheapflights users on 6/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:21 amMDW - BOS
1 stop24h 50mFrontier
Mon 9/2210:53 amBOS - MDW
1 stop6h 05mFrontier
Deal found 6/29$140
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Tue 7/1511:05 amORD - BOS
Nonstop2h 37mUnited Airlines
Tue 7/157:04 pmBOS - ORD
1 stop5h 37mUnited Airlines
Deal found 6/30$143
This Delta deal was found by Cheapflights users on 6/30. 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.
Wed 7/237:00 amORD - BOS
Nonstop2h 31mDelta
Wed 7/234:05 pmBOS - ORD
Nonstop3h 06mDelta
Deal found 6/30$155
This Southwest deal was found by Cheapflights users on 6/30. 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 8/222:55 pmORD - BOS
1 stop6h 40mSouthwest
Tue 8/265:40 amBOS - ORD
1 stop7h 10mSouthwest
Deal found 6/30$157

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Boston 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 July 1, 2025.
Use the filters below to find and compare flights from Chicago to Boston that are best for you.

Fly from

Chicago

Fly to

Boston

Route

Depart

Return

Price

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Tue 9/9

11:45 am-11:55 pm

1 stop11h 10m

Boston Logan Intl

Sat 9/13

8:38 am-4:49 pm

1 stop9h 11m

$132

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Sat 8/2

12:20 pm-12:39 am

1 stop11h 19m

Boston Logan Intl

Thu 8/7

6:00 am-1:56 pm

1 stop8h 56m

$135

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Fri 7/11

8:40 am-12:04 pm

Nonstop2h 24m

Boston Logan Intl

Wed 7/16

6:00 am-7:55 am

Nonstop2h 55m

$137

ChicagoBoston

MDW - BOS

MDWBOS

Chicago Midway

Sat 8/16

3:55 pm-7:15 pm

Nonstop2h 20m

Boston Logan Intl

Mon 8/18

5:15 am-6:45 am

Nonstop2h 30m

$137

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Tue 7/29

5:05 am-7:34 pm

1 stop13h 29m

Boston Logan Intl

Tue 7/29

8:39 pm-8:55 am

1 stop13h 16m

$138

ChicagoBoston

MDW - BOS

MDWBOS

Chicago Midway

Fri 9/19

6:21 am-8:11 am

1 stop24h 50m

Boston Logan Intl

Mon 9/22

10:53 am-3:58 pm

1 stop6h 05m

$140

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Tue 7/15

11:05 am-2:42 pm

Nonstop2h 37m

Boston Logan Intl

Tue 7/15

7:04 pm-11:41 pm

1 stop5h 37m

$143

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Fri 8/22

2:55 pm-10:35 pm

1 stop6h 40m

Boston Logan Intl

Tue 8/26

5:40 am-11:50 am

1 stop7h 10m

$157

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Fri 8/29

8:25 pm-11:59 pm

Nonstop2h 34m

Boston Logan Intl

Tue 9/2

8:35 am-10:30 am

Nonstop2h 55m

$165

ChicagoBoston

ORD - BOS

ORDBOS

Chicago O'Hare Intl

Sat 8/30

2:10 pm-5:54 pm

Nonstop2h 44m

Boston Logan Intl

Sun 8/31

7:20 am-9:15 am

Nonstop2h 55m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 21 results
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The best insider tips for Chicago to Boston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to Boston trip
Airlines
United Airlines

United's Economy Plus offers extra legroom, ideal for comfort on short flights.


United's MileagePlus allows pooling miles, useful for family travel.

Read more about United Airlinesby Harriet Baskas
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for short flights.


Spirit's self-service bag drop saves time; print your boarding pass at home to avoid fees.

Read more about Spirit Airlinesby Daniel Scheffler
Airports
ORD

Avoid long walks at ORD by using the free shuttle train between terminals outside of security.

Read more about ORDby Ramsey Qubein
MDW

Use the airport’s mobile system to order food directly to your gate, saving time and ensuring you don't miss boarding.

Read more about MDWby Ramsey Qubein
BOS

Take the MBTA Silver Line 1 bus for a free ride from BOS to South Station in downtown Boston.

Read more about BOSby Paul Rubio
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

Ramsey Qubein

Ramsey Qubein

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

Paul Rubio

Paul Rubio

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

Best time to book a flight from Chicago to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Chicago 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 Chicago to Boston

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Boston. Price data was last updated on June 27, 2025.

The price you pay for your flight from Chicago to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 73 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Boston (average of $218). Flying from Chicago to Boston in June is currently the most expensive (average of $306). 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 CHI to BOS?

Find hourly flight availability from Chicago to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

It’s typically best to fly out from Chicago to Boston in the evening. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Boston. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Chicago to Boston flight should consider departing on Wednesday 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 Chicago to Boston

Explore weekly flight availability from Chicago to Boston. 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 July 1, 2025.

The most flights from CHI to BOS are scheduled on a Monday (67 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).

How much does it cost to fly round-trip from Chicago to Boston?

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated July 1, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Chicago to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,275 reviews

Food

7.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,275 reviews
Southwest
8.0
Very good
4,275 reviews

Food

7.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,974 reviews
Southwest
8.0
Very good
4,275 reviews

Food

7.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,858 reviews
Southwest
8.0
Very good
4,275 reviews

Food

7.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,919 reviews
Southwest
8.0
Very good
4,275 reviews

Food

7.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,275 reviews

Food

7.0

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Chicago to Boston. 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 into for flights to Boston from Chicago?

    Boston Logan Intl (BOS) is the airport you will fly into if you book a flight from Chicago to Boston. You should not have trouble finding flights to Logan Intl from Chicago; the airport handles an average of 41 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 7 airlines have flights to the Boston airport from Chicago. It is only a 2.6 mi journey from Logan Intl (BOS) to Boston’s city center.

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

    Cheapflights users have booked flights from Chicago to Boston round-trip from $135. Other airlines that can offer you cheap pricing are JetBlue, from $137, and Southwest, from $137. These flights start at 40% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $68. Users have also found prices from $69 and $69 on JetBlue and Southwest, respectively.

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

    Before booking your flight to Boston from Chicago, check out the most reliable airlines to get you to your destination on time: Etihad Airways (91%), Scandinavian Airlines (90%), Royal Jordanian( 84%).

  • What are the cheapest flights from Chicago to Boston?

    On average you can expect to pay $853 for a flight from Chicago to Boston. The cheapest flight overall is $68 while the most popular route, (Chicago O'Hare Intl - Boston Logan Intl) is currently priced at $125.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago to Boston 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 Chicago to Boston?

    Currently, January is the cheapest month in which you can book a flight from Chicago to Boston (average of $218). Flying from Chicago to Boston in June is currently the most expensive (average of $306). 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
Cambridge
Medford
Watertown
Warwick
Seabrook
Waltham
Framingham
Cranston
Randolph
Chestnut Hill
Chelsea
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea
Lincoln
Quincy

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Alternative routes for Chicago to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Chicago to Boston

Discover the top 7 airlines that operate flights from Chicago to Boston. 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$36Average$95FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$78Average$194FlexibilityNo cancel feeOn-time62%
DeltaCheapest$90Average$222FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$100Average$115FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$125Average$232FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$130Average$289FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$153Average$276FlexibilityNo cancel feeOn-time63%

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