Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Boston to Chicago from $45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Chicago departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Boston to Chicago

Cheap round-trip flights

These are some of the best round-trip flight deals from Boston to Chicago that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Boston to Chicago.

Cheap last minute flights

Planning a quick getaway from Boston to Chicago? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Chicago, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Boston to Chicago

Find recent round-trip train or bus tickets from Boston to Chicago.

All round-trip flight deals from Boston to Chicago

The cheapest plane tickets from Boston to Chicago found on KAYAK recently.
8:09 pm - 9:44 amBOS-ORD
14h 35m1 stop
7:42 pm - 10:09 amORD-BOS
13h 27m1 stop
$107Spirit Airlines
Find Deal
Tue, Mar 4 - Wed, Mar 5
10:03 am - 11:58 pmBOS-ORD
14h 55m1 stop
6:45 am - 4:10 pmORD-BOS
8h 25m1 stop
$108Spirit Airlines
Find Deal
Tue, Mar 4 - Wed, Mar 5
6:20 pm - 8:25 pmBOS-ORD
3h 05mnonstop
7:30 am - 10:49 amORD-BOS
2h 19mnonstop
$157United Airlines
Find Deal
Mon, Feb 24 - Fri, Feb 28
10:00 am - 12:00 pmBOS-ORD
3h 00mnonstop
4:50 pm - 8:14 pmORD-BOS
2h 24mnonstop
$167JetBlue
Find Deal
Mon, Feb 24 - Sat, Mar 1
2:52 pm - 4:52 pmBOS-ORD
3h 00mnonstop
8:05 am - 11:19 amORD-BOS
2h 14mnonstop
$168American Airlines
Find Deal
Wed, Feb 12 - Mon, Feb 17
3:52 pm - 5:55 pmBOS-ORD
3h 03mnonstop
7:00 am - 10:15 amORD-BOS
2h 15mnonstop
$177JetBlue
Find Deal
Fri, Feb 7 - Mon, Feb 10
5:30 am - 9:35 amBOS-ORD
5h 05m1 stop
4:00 pm - 7:20 pmORD-BOS
2h 20mnonstop
$183United Airlines
Find Deal
Mon, Mar 10 - Thu, Mar 13
6:34 am - 8:39 amBOS-ORD
3h 05mnonstop
7:00 am - 10:20 amORD-BOS
2h 20mnonstop
$188American Airlines
Find Deal
Thu, Feb 13 - Sun, Feb 16
5:40 pm - 7:44 pmBOS-ORD
3h 04mnonstop
10:10 am - 1:38 pmORD-BOS
2h 28mnonstop
$198Delta
Find Deal
Sat, Apr 26 - Wed, Apr 30
8:20 pm - 10:19 pmBOS-ORD
2h 59mnonstop
7:10 am - 10:43 amORD-BOS
2h 33mnonstop
$207Delta
Find Deal
Fri, Feb 28 - Wed, Mar 5
4:47 pm - 11:58 pmBOS-ORD
8h 11m1 stop
$45Spirit Airlines
Find Deal
Tue, Feb 25
6:00 am - 4:16 pmBOS-MDW
11h 16m1 stop
$52Frontier
Find Deal
Tue, Feb 11
3:00 pm - 5:00 pmBOS-ORD
3h 00mnonstop
$79JetBlue
Find Deal
Tue, Feb 25
1:59 pm - 4:05 pmBOS-ORD
3h 06mnonstop
$89JetBlue
Find Deal
Sat, Mar 22
5:40 pm - 7:44 pmBOS-ORD
3h 04mnonstop
$100Delta
Find Deal
Sat, Apr 26
7:19 pm - 9:15 pmBOS-ORD
2h 56mnonstop
$120American Airlines
Find Deal
Sat, Jun 28
3:30 pm - 5:36 pmBOS-ORD
3h 06mnonstop
$124Delta
Find Deal
Fri, Jan 31
6:00 am - 10:39 amBOS-ORD
5h 39m1 stop
$128United Airlines
Find Deal
Mon, Jun 2
7:06 am - 10:44 amBOS-ORD
4h 38m1 stop
$129American Airlines
Find Deal
Sun, Feb 16
6:00 am - 8:04 amBOS-ORD
3h 04mnonstop
$135United Airlines
Find Deal
Sun, Mar 16
6:00 am - 9:52 amBOS-ORD
28h 52m1 stop
1:45 pm - 12:39 amORD-BOS
9h 54m1 stop
$120Frontier
Find Deal
Sat, Jan 25 - Wed, Jan 29
6:00 am - 1:36 pmBOS-ORD
8h 36m1 stop
2:59 pm - 12:39 amORD-BOS
8h 40m1 stop
$122Frontier
Find Deal
Tue, Jan 28 - Tue, Jan 28
6:00 am - 1:36 pmBOS-ORD
8h 36m1 stop
12:25 pm - 11:35 pmORD-BOS
10h 10m1 stop
Tue, Jan 28 - Fri, Jan 31
6:25 am - 4:10 pmBOS-ORD
10h 45m1 stop
12:25 pm - 11:35 pmORD-BOS
10h 10m1 stop
$141Spirit Airlines
Find Deal
Sun, Jan 26 - Fri, Jan 31
10:00 am - 4:10 pmBOS-ORD
7h 10m1 stop
12:25 pm - 11:35 pmORD-BOS
10h 10m1 stop
$150Spirit Airlines
Find Deal
Sun, Jan 26 - Thu, Jan 30
7:15 am - 9:25 amBOS-ORD
3h 10mnonstop
6:25 pm - 10:08 pmORD-BOS
2h 43mnonstop
$247Delta
Find Deal
Tue, Jan 28 - Tue, Jan 28
8:45 am - 10:45 amBOS-ORD
3h 00mnonstop
4:02 pm - 10:33 pmORD-BOS
5h 31m1 stop
$257American Airlines
Find Deal
Tue, Jan 28 - Tue, Jan 28
3:30 pm - 5:36 pmBOS-ORD
3h 06mnonstop
10:40 am - 2:09 pmORD-BOS
2h 29mnonstop
$262Delta
Find Deal
Tue, Jan 28 - Thu, Feb 6
3:52 pm - 5:59 pmBOS-ORD
3h 07mnonstop
7:00 am - 10:15 amORD-BOS
2h 15mnonstop
$297JetBlue
Find Deal
Mon, Jan 27 - Sat, Feb 1
11:28 am - 3:44 pmBOS-ORD
5h 16m1 stop
7:00 am - 10:15 amORD-BOS
2h 15mnonstop
$302JetBlue
Find Deal
Mon, Jan 27 - Wed, Feb 5
6:50 am - 8:45 amBOS-MDW
2h 55mnonstop
8:05 am - 11:20 amMDW-BOS
2h 15mnonstop
$157Southwest
Find Deal
Thu, Feb 13 - Sun, Feb 16
10:00 am - 12:00 pmBOS-ORD
3h 00mnonstop
12:50 pm - 4:13 pmORD-BOS
2h 23mnonstop
$157JetBlue
Find Deal
Mon, Feb 24 - Fri, Feb 28
11:45 am - 1:46 pmBOS-ORD
3h 01mnonstop
10:40 am - 2:09 pmORD-BOS
2h 29mnonstop
$165Delta
Find Deal
Mon, Feb 10 - Thu, Feb 13
3:30 pm - 5:32 pmBOS-ORD
3h 02mnonstop
10:40 am - 2:09 pmORD-BOS
2h 29mnonstop
$167Delta
Find Deal
Thu, Feb 27 - Tue, Mar 4
6:50 am - 8:45 amBOS-MDW
2h 55mnonstop
8:40 am - 11:55 amMDW-BOS
2h 15mnonstop
$167Southwest
Find Deal
Fri, Feb 28 - Mon, Mar 3
2:52 pm - 4:52 pmBOS-ORD
3h 00mnonstop
8:05 am - 11:19 amORD-BOS
2h 14mnonstop
$168American Airlines
Find Deal
Wed, Feb 12 - Mon, Feb 17
6:50 am - 8:45 amBOS-MDW
2h 55mnonstop
10:05 am - 1:20 pmMDW-BOS
2h 15mnonstop
$177Southwest
Find Deal
Sun, Mar 2 - Tue, Mar 4
5:14 am - 7:15 amBOS-ORD
3h 01mnonstop
8:27 pm - 11:44 pmORD-BOS
2h 17mnonstop
$178American Airlines
Find Deal
Sun, Mar 2 - Tue, Mar 4
6:00 am - 8:04 amBOS-ORD
3h 04mnonstop
7:30 am - 10:49 amORD-BOS
2h 19mnonstop
$181United Airlines
Find Deal
Thu, Feb 13 - Mon, Feb 17
12:25 pm - 2:22 pmBOS-ORD
2h 57mnonstop
6:17 pm - 9:49 pmORD-BOS
2h 32mnonstop
$197United Airlines
Find Deal
Thu, Apr 24 - Tue, Apr 29

Frontier flights from Boston to Chicago

Our best Frontier deals on Boston to Chicago flight tickets
Frontier
Feb 5
BOS6:00 amBoston Logan Intl
7h 45m
1 stop
ORD12:45 pmChicago O'Hare Intl
Feb 10
ORD4:41 pmChicago O'Hare Intl
6h 58m
1 stop
BOS12:39 amBoston Logan Intl
Frontier
Feb 26
BOS6:00 amBoston Logan Intl
9h 25m
1 stop
ORD2:25 pmChicago O'Hare Intl
Mar 3
ORD4:58 pmChicago O'Hare Intl
6h 46m
1 stop
BOS12:44 amBoston Logan Intl
Frontier
Feb 11
BOS6:00 amBoston Logan Intl
8h 36m
1 stop
ORD1:36 pmChicago O'Hare Intl
Feb 18
ORD3:14 pmChicago O'Hare Intl
8h 30m
1 stop
BOS12:44 amBoston Logan Intl

JetBlue flights from Boston to Chicago

Our best JetBlue deals on Boston to Chicago flight tickets
JetBlue
Feb 24
BOS10:00 amBoston Logan Intl
3h 00m
ORD12:00 pmChicago O'Hare Intl
Mar 1
ORD4:50 pmChicago O'Hare Intl
2h 24m
BOS8:14 pmBoston Logan Intl
JetBlue
Feb 7
BOS3:52 pmBoston Logan Intl
3h 03m
ORD5:55 pmChicago O'Hare Intl
Feb 10
ORD7:00 amChicago O'Hare Intl
2h 15m
BOS10:15 amBoston Logan Intl
JetBlue
Feb 7
BOS11:25 amBoston Logan Intl
5h 18m
1 stop
ORD3:43 pmChicago O'Hare Intl
Feb 10
ORD7:00 amChicago O'Hare Intl
2h 15m
BOS10:15 amBoston Logan Intl

See travel insights to Chicago from

How to get the cheapest flight ticket from Boston to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chicago?

The month of September is, on average, the cheapest month to fly to Chicago from Boston, with most prices found around $184. If you’re not able to fly to Chicago in September, then January is your next best option. Flight prices from Boston to Chicago during January average around $197.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Wednesday when prices can be found for as low as $325. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Chicago for around $444.

What is the cheapest time of day to depart on your flight to Chicago?

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Boston to Chicago during this time can be as low as $237. In contrast, the most expensive time of day to depart to Chicago is in the afternoon when prices are around $277.

What is the cheapest Boston Logan Intl to Chicago flight route?

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

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Boston when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $247 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Boston for as low as $213 on momondo.

What cabin class options are available on Boston Logan Intl to Chicago flights?

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

How have Boston to Chicago flight prices changed over time?

As of January 2025, prices for Boston to Chicago flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Chicago (BOS to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Chicago

Best Price Found

$45

Fastest flight time

2h 35m

Direct flights

Every day

Airports in Chicago

2 airports
The best one-way flight to Chicago from Boston in the past 72 hours is $45. The best round-trip flight deal from Boston to Chicago found on momondo in the last 72 hours is $107.
The fastest flight from Boston to Chicago takes 2h 35m
Direct flights go from Boston to Chicago every day.
There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

  • Is flying the fastest way to get from Boston to Chicago?

    To save time, the fastest way to travel is by flight from Boston to Chicago on Southwest. Expect the length of time you’ll spend onboard Southwest to be about 2h 40m compared to taking a train from Boston to Chicago or a bus from Boston to Chicago which have been found to be slower alternatives.

  • Is flying the cheapest way to get from Boston to Chicago?

    The cheapest way is to get a flight from Boston to Chicago, which can be as cheap as $107. A train from Boston to Chicago is more expensive than a flight, with prices starting at $216. A bus from Boston to Chicago is also an option, with an average price of $227.

  • How far is Boston Logan Intl to Chicago by plane?

    A flight from Boston Logan Intl to Chicago will travel around 847.9 mi. 2h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Chicago?

    Prices for flights from Boston Logan Intl Airport to Chicago refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Chicago?

  • How old do you have to be to fly from Boston Logan Intl Airport to Chicago?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Boston to Chicago?

  • What is the most popular airline from Boston to Chicago?


Best airlines flying from Boston to Chicago

Compare and see reviews for airlines that fly from Boston to Chicago with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $39Free CancellationRating
6.3
8,108 reviews
Search Spirit Airlines flights
JetBluePriceFrom $81Free CancellationRating
7.4
3,186 reviews
Search JetBlue flights
DeltaPriceFrom $93Free CancellationRating
8.0
8,508 reviews
Search Delta flights
FrontierPriceFrom $98Free CancellationRating
6.0
3,440 reviews
Search Frontier flights
American AirlinesPriceFrom $139Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $147Free CancellationRating
7.4
8,971 reviews
Search United Airlines flights
SouthwestPriceFrom $149Free CancellationRating
8.1
4,647 reviews
Search Southwest flights
  • Southwest Flights From Boston to Chicago

    The lowest priced Southwest flight from Boston to Chicago from the last 72 hours was $149. Generally, Southwest has 14 flights on this route every week with an average price of $239. Southwest is rated 8.1/10 by our users.

  • Delta Flights From Boston to Chicago

    Delta is also a popular choice for this route. Delta flight deals for Boston to Chicago start from as low as $93 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $344. Delta operates 17 flights to Chicago from Boston in an average week. Users have rated it 8.0/10 across 8,508 reviews.


Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Hammond
New Buffalo
Portage
Benton Harbor
Lansing
Saint Joseph
Valparaiso
Munster
Crown Point
Schererville
Monticello
Chesterton
Porter
Griffith
Saint John

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Chicago?

It is quick and easy to find Boston to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

Can I find flights from Boston to Chicago with flexible booking policies on momondo?

momondo does allow users to show only those flights to Chicago from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Chicago?

momondo provides multiple filters to help you find the best flight to Chicago from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Chicago right now. Can momondo alert me if prices change?

Price alerts on flights to Chicago from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


Choose the best way to get from Boston to Chicago

Buses

28h 15m
$108 one-way$227 round-trip
Nonstop · from $227

Distance to downtown

ZUN0.7 mi
F990.8 mi

Find Buses

Boston to Chicago Buses

Trains

22h 15m
$108 one-way$216 round-trip
Nonstop · from $216

Distance to downtown

ZUN0.7 mi

Flights

2h 35m
$45 one-way$107 round-trip

No transfers

Distance to downtown

ORD15.9 mi

An easier way to manage your Chicago trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 1/28
Tue 2/4
Email me momondo's favorite deals

Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago