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Cheap flights from Boston to Chicago O'Hare Intl Airport from £51

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 26/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ORD
24 Apr — 1 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Boston Logan Intl to Chicago O'Hare Intl are usually found in January or September, booked 64 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Boston to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Boston to O'Hare Intl
Explore the most affordable flight options available from Boston to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2026.

Wed 22/419:35
BOS
-
ORD
Nonstop3h 04m
JetBlue
Wed 29/409:41
ORD
-
BOS
Nonstop2h 28m
JetBlue
Deal found 24/3£101
Wed 15/407:15
BOS
-
ORD
Nonstop2h 59m
United Airlines
Thu 16/406:00
ORD
-
BOS
Nonstop2h 25m
United Airlines
Deal found 25/3£108
Wed 13/505:40
BOS
-
ORD
1 stop5h 49m
Delta
Wed 13/519:16
ORD
-
BOS
Nonstop2h 34m
Delta
Deal found 24/3£109
Wed 13/514:05
BOS
-
ORD
1 stop6h 15m
Delta
Tue 19/507:00
ORD
-
BOS
Nonstop2h 35m
Delta
Deal found 23/3£110
Thu 23/407:00
BOS
-
ORD
Nonstop3h 00m
JetBlue
Tue 28/409:41
ORD
-
BOS
Nonstop2h 26m
JetBlue
Deal found 24/3£110
Thu 30/407:10
BOS
-
ORD
Nonstop3h 05m
Delta
Sat 2/506:00
ORD
-
BOS
Nonstop2h 26m
Delta
Deal found 24/3£116
Thu 30/407:10
BOS
-
ORD
Nonstop3h 05m
Delta
Mon 4/506:50
ORD
-
BOS
Nonstop2h 21m
Delta
Deal found 25/3£116
Mon 13/416:55
BOS
-
ORD
Nonstop3h 04m
Delta
Tue 14/407:14
ORD
-
BOS
1 stop7h 09m
Delta
Deal found 25/3£117
Thu 23/405:30
BOS
-
ORD
1 stop5h 49m
Delta
Wed 29/406:00
ORD
-
BOS
Nonstop2h 26m
Delta
Deal found 24/3£118
Wed 3/607:35
BOS
-
ORD
Nonstop2h 52m
Delta
Sat 6/617:19
ORD
-
BOS
1 stop5h 10m
Delta
Deal found 23/3£119
Wed 22/419:35
BOS
-
ORD
Nonstop3h 04m
JetBlue
Thu 30/406:00
ORD
-
BOS
Nonstop2h 15m
JetBlue
Deal found 24/3£120
Thu 7/518:47
BOS
-
ORD
Nonstop3h 06m
JetBlue
Mon 11/507:20
ORD
-
BOS
Nonstop2h 26m
JetBlue
Deal found 24/3£121

Find flight deals from Boston to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to O'Hare Intl (ORD). 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 25 March 2026.

Round-trip from

£101

One-way from

£51

Popular in

April

Cheapest in

January

Average price

£194

Good round-trip deal

£184 or less

Good one-way deal

£100 or less
JetBlue
  • JetBlue
  • 22/4-28/4
  • Nonstop
  • 5h 30m total
  • Boston to Chicago
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Delta
  • Delta
  • 28/4
  • Nonstop
  • 3h 04m total
  • Boston to Chicago
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£10 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Boston Logan Intl to Chicago O'Hare Intl.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Boston to O'Hare Intl 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 858,174 searches. Data last updated 25 March 2026.
Use the filters below to find and compare flights from Boston to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 9/5

15:00-19:14

1 stop5h 14m

Chicago O'Hare Intl

Sat 16/5

17:19-23:29

1 stop5h 10m

£135
Fastest return journey

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 15/9

09:40-11:32

Nonstop2h 52m

Chicago O'Hare Intl

Sun 20/9

06:00-09:23

Nonstop2h 23m

£153

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 23/5

19:27-23:26

1 stop4h 59m

Chicago O'Hare Intl

Mon 25/5

21:26-00:59

Nonstop2h 33m

£157

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 9/5

06:00-15:30

2 stops10h 30m

Chicago O'Hare Intl

Sat 16/5

13:55-22:05

1 stop7h 10m

£165

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 28/5

05:30-12:50

2 stops8h 20m

Chicago O'Hare Intl

Tue 2/6

14:40-22:30

1 stop6h 50m

£165

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 16/4

07:10-09:15

Nonstop3h 05m

Chicago O'Hare Intl

Sun 19/4

06:50-10:11

Nonstop2h 21m

£169

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 7/5

07:20-17:30

2 stops11h 10m

Chicago O'Hare Intl

Thu 14/5

14:40-23:15

1 stop7h 35m

£173

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 28/8

07:30-09:28

Nonstop2h 58m

Chicago O'Hare Intl

Sun 30/8

17:45-23:32

1 stop4h 47m

£177

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 7/9

08:00-09:56

Nonstop2h 56m

Chicago O'Hare Intl

Wed 16/9

19:50-23:25

Nonstop2h 35m

£184

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 7/8

20:10-22:06

Nonstop2h 56m

Chicago O'Hare Intl

Mon 10/8

07:00-10:28

Nonstop2h 28m

£192

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Boston to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Boston with our price prediction graph.
Estimated return 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 O'Hare Intl Airport

How far ahead should I book a flight from Boston to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a return flight from Boston to O'Hare Intl. Price data was last updated on 13 March 2026.

The best time to book flights from Boston to Chicago O'Hare Intl Airport is 46 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 O'Hare Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Boston to Chicago O'Hare Intl Airport (average of £68). Flying from Boston to Chicago O'Hare Intl Airport in January is currently the most expensive (average of £92). 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 ORD?

Find hourly flight availability from Boston to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 March 2026.

When flying from Boston to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 75% versus a flight in the afternoon.

How much does it cost for a return flight from Boston to Chicago O'Hare Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Boston to O'Hare Intl. 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 O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 37 flights from Logan Intl to Chicago O'Hare Intl per day from 0 different airlines.

  • How long is the flight from Boston to Chicago O'Hare Intl Airport?

    Delta, United Airlines, and Southwest can get you from Boston to Chicago O'Hare Intl Airport in just under 2h 56m. Your travel time can differ by up to 7h 34m. The distance from Boston to Chicago O'Hare Intl Airport is about 864 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Boston to Chicago O'Hare Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Boston to Chicago O'Hare Intl Airport consider choosing Icelandair (100%), WestJet (87%) or Air France (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Chicago O'Hare Intl Airport?

    While on average a flight from Boston to Chicago O'Hare Intl Airport is generally £157, our data shows the cheapest flight currently is £36. When looking at the most popular route, (Boston Logan Intl - Chicago O'Hare Intl), you can expect to pay £151 for that flight.

  • Can I find deals for flights from Boston to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Boston to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to O'Hare Intl?

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

  • Can I find deals for business class flights from Boston to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Boston to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Boston to Chicago O'Hare Intl Airport (average of £68). Flying from Boston to Chicago O'Hare Intl Airport in January is currently the most expensive (average of £92). 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

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Why should you use Cheapflights to find cheap flight tickets from Boston to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from Boston to O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Boston to O'Hare Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to O'Hare Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Boston to O'Hare Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to O'Hare Intl from Boston today and book when prices fit your budget.

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