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 30/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

United Airlines Logo
06:10 - 08:05BOS-ORD
2h 55mdirect
United Airlines Logo
21:15 - 00:45ORD-BOS
2h 30mdirect
£88United Airlines
Find Deal
Tue, 2 Sep - Thu, 4 Sep
United Airlines Logo
07:45 - 09:41BOS-ORD
2h 56mdirect
United Airlines Logo
07:30 - 11:01ORD-BOS
2h 31mdirect
£96United Airlines
Find Deal
Thu, 4 Sep - Sun, 7 Sep
American Airlines Logo
17:36 - 19:33BOS-ORD
2h 57mdirect
American Airlines Logo
20:25 - 23:53ORD-BOS
2h 28mdirect
£104American Airlines
Find Deal
Fri, 12 Sep - Fri, 19 Sep
Southwest Logo
07:30 - 12:45BOS-ORD
6h 15m1 stop
Southwest Logo
13:50 - 20:35ORD-BOS
5h 45m1 stop
£110Southwest
Find Deal
Thu, 4 Sep - Sun, 7 Sep
Southwest Logo
05:20 - 11:50BOS-ORD
7h 30m1 stop
Southwest Logo
14:55 - 20:55ORD-BOS
5h 00m1 stop
£111Southwest
Find Deal
Sat, 30 Aug - Sat, 6 Sep
Delta Logo
07:20 - 09:15BOS-ORD
2h 55mdirect
Delta Logo
07:00 - 10:30ORD-BOS
2h 30mdirect
£117Delta
Find Deal
Thu, 4 Sep - Sun, 7 Sep
Delta Logo
07:00 - 09:00BOS-ORD
3h 00mdirect
Delta Logo
18:50 - 22:27ORD-BOS
2h 37mdirect
£119Delta
Find Deal
Thu, 27 Nov - Tue, 2 Dec
JetBlue Logo
14:45 - 20:49BOS-ORD
7h 04m1 stop
JetBlue Logo
19:50 - 23:25ORD-BOS
2h 35mdirect
£128JetBlue
Find Deal
Fri, 12 Sep - Fri, 19 Sep
JetBlue Logo
17:05 - 22:28BOS-ORD
6h 23m1 stop
JetBlue Logo
09:42 - 13:10ORD-BOS
2h 28mdirect
£134JetBlue
Find Deal
Tue, 2 Sep - Thu, 4 Sep
American Airlines Logo
05:00 - 06:51BOS-ORD
2h 51mdirect
American Airlines Logo
15:04 - 18:31ORD-BOS
2h 27mdirect
£146American Airlines
Find Deal
Sun, 5 Oct - Fri, 10 Oct

American Airlines flights from Boston to Chicago

Our best American Airlines deals on Boston to Chicago flight tickets
American Airlines
12 Sept
BOS17:36Boston Logan Intl
2h 57m
ORD19:33Chicago O'Hare Intl
19 Sept
ORD20:25Chicago O'Hare Intl
2h 28m
BOS23:53Boston Logan Intl
American Airlines
12 Aug
BOS19:24Boston Logan Intl
2h 57m
ORD21:21Chicago O'Hare Intl
19 Aug
ORD07:00Chicago O'Hare Intl
2h 24m
BOS10:24Boston Logan Intl
American Airlines
5 Oct
BOS05:00Boston Logan Intl
2h 51m
ORD06:51Chicago O'Hare Intl
10 Oct
ORD15:04Chicago O'Hare Intl
2h 27m
BOS18:31Boston Logan Intl

JetBlue flights from Boston to Chicago

Our best JetBlue deals on Boston to Chicago flight tickets
JetBlue
12 Sept
BOS14:45Boston Logan Intl
7h 04m
1 stop
ORD20:49Chicago O'Hare Intl
19 Sept
ORD19:50Chicago O'Hare Intl
2h 35m
BOS23:25Boston Logan Intl
JetBlue
2 Sept
BOS17:05Boston Logan Intl
6h 23m
1 stop
ORD22:28Chicago O'Hare Intl
4 Sept
ORD09:42Chicago O'Hare Intl
2h 28m
BOS13:10Boston Logan Intl
JetBlue
12 Aug
BOS06:00Boston Logan Intl
2h 55m
ORD07:55Chicago O'Hare Intl
25 Aug
ORD08:40Chicago O'Hare Intl
2h 24m
BOS12:04Boston Logan Intl

momondo Fare Finder

 
Customise 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, momondo users made 279,928 searches. Data last updated 31 July 2025.
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

Tue 2/9

06:10-08:05

Nonstop2h 55m

Chicago O'Hare Intl

Thu 4/9

21:15-00:45

Nonstop2h 30m

£88

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/9

07:45-09:41

Nonstop2h 56m

Chicago O'Hare Intl

Sun 7/9

07:30-11:01

Nonstop2h 31m

£96

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 12/9

17:36-19:33

Nonstop2h 57m

Chicago O'Hare Intl

Fri 19/9

20:25-23:53

Nonstop2h 28m

£104

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/9

07:30-12:45

1 stop6h 15m

Chicago O'Hare Intl

Sun 7/9

13:50-20:35

1 stop5h 45m

£110

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 30/8

05:20-11:50

1 stop7h 30m

Chicago O'Hare Intl

Sat 6/9

14:55-20:55

1 stop5h 00m

£111

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/9

07:20-09:15

Nonstop2h 55m

Chicago O'Hare Intl

Sun 7/9

07:00-10:30

Nonstop2h 30m

£117

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 27/11

07:00-09:00

Nonstop3h 00m

Chicago O'Hare Intl

Tue 2/12

18:50-22:27

Nonstop2h 37m

£119

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 12/9

14:45-20:49

1 stop7h 04m

Chicago O'Hare Intl

Fri 19/9

19:50-23:25

Nonstop2h 35m

£128

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 2/9

17:05-22:28

1 stop6h 23m

Chicago O'Hare Intl

Thu 4/9

09:42-13:10

Nonstop2h 28m

£134

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sun 5/10

05:00-06:51

Nonstop2h 51m

Chicago O'Hare Intl

Fri 10/10

15:04-18:31

Nonstop2h 27m

£146

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Chicago from Boston is in September. Flight prices, which tend to average around £134, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Chicago from Boston during January instead. Flights to Chicago in January, while not as cheap as those in September, still average around £147.

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 Thursday when prices can be found for as low as £127. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Sunday, with ticket prices averaging around £528.

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

Flying to Chicago from Boston in the morning is the least expensive time of day to depart. momondo users have found prices as low as £141 when looking at flights departing in the morning. Flights in the afternoon are often more expensive, with an average ticket price of £384.

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 weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around £184 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Boston for as low as £159 on momondo.

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

There are 3 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 July 2025, prices for Boston to Chicago flights are approximately 36% cheaper 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 return 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 48m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from Boston in the past 72 hours is £45. The best return flight deal from Boston to Chicago found on momondo in the last 72 hours is £88.
The fastest flight from Boston to Chicago takes 2h 48m
Direct flights go from Boston to Chicago every day.
There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)

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

    Chicago is 847.9 mi away from Boston Logan Intl. 2h 48m 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 were last updated today.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model 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
American AirlinesPriceFrom £74Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • American Airlines Flights From Boston to Chicago

    American Airlines operates around 36 flights from Boston to Chicago every week. The average price of these flights found in the last 72 hours has been £155, but momondo users have found American Airlines deals from Boston to Chicago from as low as £98 round-trip. American Airlines has been scored 7.2/10 in 10,000 reviews.


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?

Flights from Boston to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Boston and Chicago by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Boston and alert you when they change.


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1 adult
Tue 5/8
Tue 12/8

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