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Cheap flights from Buffalo to Chicago O'Hare Intl Airport from C$ 79

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ORD
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 6 November 2025.

Round-trip from

C$ 244

One-way from

C$ 79

Popular in

February

Cheapest in

August

Average price

C$ 512

Good round-trip deal

C$ 554 or less

Good one-way deal

C$ 593 or less
JetBlue
  • JetBlue
  • 3/12-10/12
  • 2 total stops
  • 13h 51m total
  • Buffalo to Chicago
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Frontier
  • Frontier
  • 11/12
  • 1 total stop
  • 5h 52m total
  • Buffalo to Chicago
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Highest demand for flights based on searches. 10% potential increase in price (C$ 79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Buffalo to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Buffalo to Chicago O'Hare Intl.
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Find 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 6 November 2025.

Wed 3/125:00 p.m.BUF - ORD
1 stop5h 52mJetBlue
Wed 10/127:00 a.m.ORD - BUF
1 stop7h 59mJetBlue
Deal found 5/11C$ 244
Thu 4/1211:48 a.m.BUF - ORD
1 stop8h 55mJetBlue
Tue 9/127:00 a.m.ORD - BUF
1 stop7h 59mJetBlue
Deal found 6/11C$ 255
Fri 5/121:50 p.m.BUF - ORD
Nonstop2h 03mUnited Airlines
Sun 7/126:25 p.m.ORD - BUF
Nonstop1h 50mUnited Airlines
Deal found 5/11C$ 315
Tue 9/125:00 p.m.BUF - ORD
1 stop5h 52mJetBlue
Sat 13/127:00 a.m.ORD - BUF
1 stop7h 59mJetBlue
Deal found 6/11C$ 336
Thu 4/125:00 p.m.BUF - ORD
1 stop5h 52mJetBlue
Sun 7/127:00 a.m.ORD - BUF
1 stop25h 20mJetBlue
Deal found 5/11C$ 340
Fri 5/126:25 p.m.BUF - ORD
1 stop6h 36mDelta
Sun 7/126:45 a.m.ORD - BUF
1 stop4h 49mDelta
Deal found 5/11C$ 343
Wed 12/1112:30 p.m.BUF - ORD
1 stop6h 25mJetBlue
Wed 19/116:45 a.m.ORD - BUF
1 stop7h 54mJetBlue
Deal found 5/11C$ 375
Thu 13/1112:30 p.m.BUF - ORD
1 stop6h 25mJetBlue
Tue 18/117:00 a.m.ORD - BUF
1 stop7h 39mJetBlue
Deal found 4/11C$ 379
Sat 13/125:40 p.m.BUF - ORD
Nonstop2h 06mUnited Airlines
Mon 15/1210:35 a.m.ORD - BUF
Nonstop1h 37mUnited Airlines
Deal found 6/11C$ 382
Thu 4/121:50 p.m.BUF - ORD
Nonstop2h 03mUnited Airlines
Thu 11/1210:35 a.m.ORD - BUF
Nonstop1h 37mUnited Airlines
Deal found 6/11C$ 385
Mon 24/1111:19 a.m.BUF - ORD
1 stop7h 34mDelta
Sat 29/116:45 a.m.ORD - BUF
1 stop4h 46mDelta
Deal found 6/11C$ 394
Mon 22/125:35 p.m.BUF - ORD
Nonstop2h 15mUnited Airlines
Tue 30/1210:35 a.m.ORD - BUF
Nonstop1h 49mUnited Airlines
Deal found 6/11C$ 401

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 6 November 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

Wed 3/12

5:00 p.m.-9:52 p.m.

1 stop5h 52m

Chicago O'Hare Intl

Wed 10/12

7:00 a.m.-3:59 p.m.

1 stop7h 59m

C$ 244

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 1/3

6:00 a.m.-11:48 a.m.

1 stop6h 48m

Chicago O'Hare Intl

Tue 3/3

12:41 p.m.-6:33 p.m.

1 stop4h 52m

C$ 274

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 20/1

10:00 a.m.-5:44 p.m.

1 stop8h 44m

Chicago O'Hare Intl

Tue 10/2

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

1 stop5h 45m

C$ 293

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 4/2

10:00 a.m.-5:44 p.m.

1 stop8h 44m

Chicago O'Hare Intl

Wed 11/2

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

1 stop5h 45m

C$ 295

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 7/1

10:00 a.m.-5:44 p.m.

1 stop8h 44m

Chicago O'Hare Intl

Fri 9/1

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

1 stop5h 45m

C$ 295

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 4/2

5:23 p.m.-6:30 p.m.

Nonstop2h 07m

Chicago O'Hare Intl

Wed 11/2

1:55 p.m.-4:44 p.m.

Nonstop1h 49m

C$ 315

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 9/12

5:00 p.m.-9:52 p.m.

1 stop5h 52m

Chicago O'Hare Intl

Sat 13/12

7:00 a.m.-3:59 p.m.

1 stop7h 59m

C$ 336

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 9/12

5:00 p.m.-9:52 p.m.

1 stop5h 52m

C$ 135

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 3/12

5:00 p.m.-9:52 p.m.

1 stop5h 52m

C$ 137

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 3/12

7:00 a.m.-8:05 a.m.

Nonstop2h 05m

C$ 158

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/11

Showing 1-10 of 18 results
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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 31 October 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$ 109). Flying from Buffalo to Chicago O'Hare Intl Airport in January is currently the most expensive (average of C$ 327). 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 6 November 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 69% on the flight price compared to flying in the afternoon, 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 6 November 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
9,007 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

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
9,007 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

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
11,040 reviews
United Airlines
7.4
Good
9,007 reviews
Check prices

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

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 24 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 55m. JetBlue provides one of the quickest options available for as low as C$ 255. 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$ 315. Another option worth looking into is United Airlines, starting at C$ 350 round trip. Users have found that American Airlines is 34% 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 (94%), Japan Airlines (93%) and Royal Jordanian (85%).

  • 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$ 1,050, our data indicates the cheapest price to be C$ 216. The most popular route (Buffalo - Chicago O'Hare Intl), is priced around C$ 413.

  • 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$ 109). Flying from Buffalo to Chicago O'Hare Intl Airport in January is currently the most expensive (average of C$ 327). 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
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 6 November 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 315AverageC$ 469FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 350AverageC$ 577FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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

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

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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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