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Cheap flights from Buffalo to Chicago O'Hare Intl Airport from C$ 118

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ORD
27 Jan — 3 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to O'Hare Intl
Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 December 2025.

Sat 27/125:35 p.m.BUF - ORD
Nonstop2h 15mUnited Airlines
Sat 27/129:05 p.m.ORD - BUF
2 stops16h 09mUnited Airlines
Deal found 24/12C$ 563
Fri 26/126:29 p.m.BUF - ORD
Nonstop2h 21mAmerican Airlines
Thu 1/18:19 p.m.ORD - BUF
Nonstop1h 38mAmerican Airlines
Deal found 25/12C$ 687
Thu 25/126:00 a.m.BUF - ORD
Nonstop1h 59mAmerican Airlines
Thu 1/19:10 a.m.ORD - BUF
Nonstop1h 52mAmerican Airlines
Deal found 24/12C$ 690
Fri 26/127:21 p.m.BUF - ORD
1 stop5h 14mUnited Airlines
Thu 1/110:35 a.m.ORD - BUF
Nonstop1h 49mUnited Airlines
Deal found 25/12C$ 701
Thu 25/1210:29 a.m.BUF - ORD
2 stops9h 21mUnited Airlines
Thu 1/110:35 a.m.ORD - BUF
Nonstop1h 49mUnited Airlines
Deal found 24/12C$ 731
Fri 26/1212:01 p.m.BUF - ORD
1 stop6h 21mDelta
Thu 1/17:00 a.m.ORD - BUF
1 stop3h 21mDelta
Deal found 25/12C$ 819
Sun 28/126:30 a.m.BUF - ORD
Nonstop2h 07mUnited Airlines
Wed 31/126:11 p.m.ORD - BUF
2 stops19h 03mUnited Airlines
Deal found 26/12C$ 836

Find flight deals from Buffalo to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) 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 28 December 2025.

Round-trip from

C$ 234

One-way from

C$ 118

Popular in

February

Cheapest in

January

Average price

C$ 456

Good round-trip deal

C$ 422 or less

Good one-way deal

C$ 243 or less
JetBlue
  • JetBlue
  • 23/2-26/2
  • 2 total stops
  • 14h 10m total
  • Buffalo to Chicago
Search Deals
JetBlue
  • JetBlue
  • 25/2
  • 1 total stop
  • 7h 04m total
  • Buffalo to Chicago
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Buffalo to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Buffalo to Chicago O'Hare Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo 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 629,999 searches. Data last updated 28 December 2025.
Use the filters below to find and compare flights from Buffalo to Chicago O'Hare Intl Airport that are best for you.

Fly from

Buffalo

Fly to

O'Hare Intl

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 20/1

10:25 a.m.-5:43 p.m.

1 stop8h 18m

Chicago O'Hare Intl

Tue 10/2

7:45 a.m.-2:30 p.m.

1 stop5h 45m

C$ 234

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 23/2

3:05 p.m.-11:21 p.m.

1 stop9h 16m

Chicago O'Hare Intl

Thu 26/2

12:41 p.m.-6:35 p.m.

1 stop4h 54m

C$ 234

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 1/2

10:00 a.m.-5:25 p.m.

1 stop8h 25m

Chicago O'Hare Intl

Wed 4/2

7:45 a.m.-2:30 p.m.

1 stop5h 45m

C$ 251

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 30/1

10:00 a.m.-5:43 p.m.

1 stop8h 43m

Chicago O'Hare Intl

Mon 2/2

8:55 a.m.-6:47 p.m.

1 stop8h 52m

C$ 251

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 15/1

10:00 a.m.-5:43 p.m.

1 stop8h 43m

Chicago O'Hare Intl

Tue 20/1

7:45 a.m.-2:30 p.m.

1 stop5h 45m

C$ 277

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 18/2

3:00 p.m.-11:21 p.m.

1 stop9h 21m

Chicago O'Hare Intl

Sun 22/2

6:04 a.m.-2:02 p.m.

1 stop6h 58m

C$ 305

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 8/1

10:00 a.m.-5:43 p.m.

1 stop8h 43m

Chicago O'Hare Intl

Tue 13/1

7:45 a.m.-2:30 p.m.

1 stop5h 45m

C$ 321

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 10/1

10:00 a.m.-5:43 p.m.

1 stop8h 43m

Chicago O'Hare Intl

Sun 11/1

7:45 a.m.-2:30 p.m.

1 stop5h 45m

C$ 321

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 17/1

6:03 a.m.-9:41 a.m.

1 stop4h 38m

Chicago O'Hare Intl

Sat 17/1

5:59 p.m.-11:56 p.m.

1 stop4h 57m

C$ 332

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 25/2

6:00 a.m.-12:04 p.m.

1 stop7h 04m

C$ 118

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/12

Showing 1-10 of 20 results
1
2

Best time to book a flight from Buffalo to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Buffalo 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 Buffalo to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to O'Hare Intl. Price data was last updated on 26 December 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to Chicago O'Hare Intl Airport, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Buffalo to Chicago O'Hare Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of C$ 105). Flying from Buffalo to Chicago O'Hare Intl Airport in November is currently the most expensive (average of C$ 353). 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 BUF to ORD?

Find hourly flight availability from Buffalo 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 28 December 2025.

It’s typically best to fly out from Buffalo to Chicago O'Hare Intl Airport in the evening. Doing so could potentially save you 76% on the flight price compared to flying at noon, which is usually more expensive.

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 28 December 2025.
Read through reviews of airlines operating flights from Buffalo to Chicago O'Hare Intl Airport, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,113 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,113 reviews
United Airlines
7.4
Good
9,113 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,073 reviews
United Airlines
7.4
Good
9,113 reviews
Check prices

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Crew

8.1

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Buffalo 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 Buffalo to Chicago O'Hare Intl?

    Buffalo (BUF), located 13.4 km from the city centre, is the airport you fly out of when you book flights from Buffalo to Chicago O'Hare Intl. 2 airlines have flights from Buffalo to Chicago O'Hare Intl on a regular basis. Booking flights from Buffalo to Chicago O'Hare Intl should not be difficult; the airport handles an average of 23 outbound flights to Chicago O'Hare Intl per day.

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

    A quick flight from Buffalo to Chicago O'Hare Intl Airport can take about 8h 18m. JetBlue provides one of the quickest options available for as low as C$ 234. Buffalo and Chicago O'Hare Intl Airport are separated by a distance of 760 km.

  • What are the cheapest airlines flying from Buffalo to Chicago O'Hare Intl Airport round-trip?

    Flying on American Airlines is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at C$ 159. Another option worth looking into is United Airlines, starting at C$ 339 round trip. Users have found that American Airlines is 65% cheaper than the other options available to this destination.

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

    The top 3 most reliable airlines when flying from Buffalo to Chicago O'Hare Intl Airport are Copa Airlines (81%), Royal Jordanian (77%) and American Airlines (75%).

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

    Looking for the cheapest flight from Buffalo to Chicago O'Hare Intl Airport? While on average our users pay C$ 972, our data indicates the cheapest price to be C$ 175. The most popular route (Buffalo - Chicago O'Hare Intl), is priced around C$ 235.

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

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

  • How can I find direct flights from Buffalo 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 Buffalo to O'Hare Intl.

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

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

    Currently, July is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of C$ 105). Flying from Buffalo to Chicago O'Hare Intl Airport in November is currently the most expensive (average of C$ 353). 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
Evanston
Des Plaines
Skokie
Elk Grove Village
Downers Grove
Racine
Naperville
Bolingbrook
Romeoville

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Top 2 airlines flying from Buffalo to O'Hare Intl

Discover the top 2 airlines that operate flights from Buffalo 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 629,999 searches. Data last updated 28 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 339AverageC$ 559FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 376AverageC$ 455FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Buffalo 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 Buffalo to O'Hare Intl?

Cheapflights helps you find that perfect flight to O'Hare Intl from Buffalo by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to O'Hare Intl from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buffalo 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 Buffalo today and book when prices fit your budget.

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