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Cheap flights from Boston to Chicago O'Hare Intl Airport from £45

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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ORD
10 Dec — 17 Dec1
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 September or January, booked 74 days in advance, depart on a Wednesday or Friday and return on a Saturday

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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 10 November 2025.

Thu 11/1217:29BOS - ORD
Nonstop3h 14mJetBlue
Mon 15/1220:38ORD - BOS
Nonstop2h 28mJetBlue
Deal found 9/11£89
Thu 11/1207:30BOS - ORD
Nonstop3h 03mDelta
Sun 14/1207:10ORD - BOS
Nonstop2h 26mDelta
Deal found 9/11£90
Sun 7/1206:00BOS - ORD
Nonstop3h 00mUnited Airlines
Sun 14/1207:30ORD - BOS
Nonstop2h 19mUnited Airlines
Deal found 9/11£93
Sat 13/1207:30BOS - ORD
Nonstop3h 03mDelta
Thu 18/1210:35ORD - BOS
Nonstop2h 24mDelta
Deal found 9/11£94
Thu 4/1212:50BOS - ORD
Nonstop3h 00mUnited Airlines
Sun 7/1207:30ORD - BOS
Nonstop2h 19mUnited Airlines
Deal found 9/11£96
Thu 4/1212:50BOS - ORD
Nonstop3h 00mUnited Airlines
Sun 11/109:13ORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 9/11£100
Wed 10/1215:40BOS - ORD
1 stop7h 12mJetBlue
Fri 12/1220:38ORD - BOS
Nonstop2h 28mJetBlue
Deal found 9/11£103
Sun 16/1106:00BOS - ORD
Nonstop3h 00mUnited Airlines
Thu 20/1121:25ORD - BOS
Nonstop2h 20mUnited Airlines
Deal found 9/11£104
Mon 8/1210:40BOS - ORD
Nonstop3h 00mUnited Airlines
Mon 22/1221:12ORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 8/11£105
Sun 7/1205:00BOS - ORD
1 stop8h 15mSouthwest
Thu 11/1213:45ORD - BOS
1 stop7h 30mSouthwest
Deal found 9/11£108
Tue 2/1215:40BOS - ORD
1 stop7h 12mJetBlue
Wed 10/1211:25ORD - BOS
Nonstop2h 24mJetBlue
Deal found 8/11£109

Cheap 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 10 November 2025.

Round-trip from

£89

One-way from

£45

Popular in

December

Cheapest in

September

Average price

£204
JetBlue
  • JetBlue
  • 11/12-15/12
  • Nonstop
  • 5h 42m total
  • Boston to Chicago
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Delta
  • Delta
  • 10/12
  • Nonstop
  • 2h 55m total
  • Boston to Chicago
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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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 10 November 2025.
Use the filters below to find and compare flights from Boston to Chicago O'Hare Intl Airport that are best for you.

Fly from

Boston

Fly to

O'Hare Intl

Route

Depart

Return

Price

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 2/2

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Sun 8/2

07:45-11:10

Nonstop2h 25m

£104

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 7/1

07:30-09:41

Nonstop3h 11m

Chicago O'Hare Intl

Wed 14/1

11:00-14:28

Nonstop2h 28m

£104

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 22/11

20:30-22:30

Nonstop3h 00m

Chicago O'Hare Intl

Sun 7/12

07:30-10:49

Nonstop2h 19m

£104

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 30/1

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Mon 9/2

07:45-11:10

Nonstop2h 25m

£104

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 2/2

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Sat 7/2

07:45-11:10

Nonstop2h 25m

£104

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 3/2

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Wed 11/2

08:45-15:50

1 stop6h 05m

£110

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 3/2

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Sat 7/2

08:45-15:50

1 stop6h 05m

£110

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 31/1

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Wed 11/2

08:45-17:13

1 stop7h 28m

£110

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 30/1

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Sat 7/2

08:45-17:13

1 stop7h 28m

£110

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 3/2

15:35-17:44

Nonstop3h 09m

Chicago O'Hare Intl

Mon 9/2

08:45-15:50

1 stop6h 05m

£111

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 24 results
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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 7 November 2025.

The best time to book flights from Boston to Chicago O'Hare Intl Airport is 74 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, April 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 July is currently the most expensive (average of £102). 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 10 November 2025.

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 82% versus a flight in the afternoon.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 10 November 2025.
Read through reviews of airlines operating flights from Boston to Chicago O'Hare Intl Airport, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,047 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Overall

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.
American Airlines
7.2
Good
11,047 reviews
American Airlines
7.2
Good
11,047 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Overall

7.2

Boarding

7.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

BNA - ORD

My flight was 8 hours delayed, so I missed my connecting flight to Dublin. I understand it’s not the staff’s fault but the lack of sympathy and apology was appalling. I had been sat in the airport since 4am until 3pm and they did not seem understanding. Not good. Need better customer service.

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 55 flights from Logan Intl to Chicago O'Hare Intl per day from 1 airline.

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

    JetBlue, Delta, and United Airlines can get you from Boston to Chicago O'Hare Intl Airport in just under 3h. Your travel time will be generally consistent. The distance from Boston to Chicago O'Hare Intl Airport is about 864 mi. All flights are typically direct.

  • What is the cheapest airline to fly from Boston to Chicago O'Hare Intl Airport round-trip?

    Currently priced at £75, American Airlines will fly you from Boston to Chicago O'Hare Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. This flight start at 60% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Chicago O'Hare Intl Airport one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £45. Users have also found prices from £45 and £49 on Delta and United Airlines, respectively.

  • 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 Avianca (87%), Icelandair (85%) or ANA (85%) as they are the most reliable in getting you off to your destination on time.

  • 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, April 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 July is currently the most expensive (average of £102). 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
Downers Grove
Elk Grove Village

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Boston to O'Hare Intl

Discover the top airline that operate flights from Boston to O'Hare Intl. 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 858,174 searches. Data last updated 10 November 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£75Average£118FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to O'Hare Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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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