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Cheap flights from Buffalo to Chicago O'Hare Intl Airport from C$ 117

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
28 Feb — 7 Mar1
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 29 January 2026.

Wed 25/26:00 a.m.
BUF
-
ORD
1 stop7h 04m
JetBlue
Wed 4/312:59 p.m.
ORD
-
BUF
1 stop4h 47m
JetBlue
Deal found 28/1C$ 232
Mon 16/39:54 a.m.
BUF
-
ORD
1 stop8h 30m
JetBlue
Wed 18/312:20 p.m.
ORD
-
BUF
1 stop7h 33m
JetBlue
Deal found 28/1C$ 250
Tue 3/36:00 a.m.
BUF
-
ORD
1 stop6h 49m
JetBlue
Wed 4/312:59 p.m.
ORD
-
BUF
1 stop4h 47m
JetBlue
Deal found 27/1C$ 251
Mon 23/21:48 p.m.
BUF
-
ORD
1 stop9h 51m
Frontier
Thu 26/25:05 a.m.
ORD
-
BUF
1 stop6h 49m
Frontier
Deal found 28/1C$ 254
Tue 17/36:00 a.m.
BUF
-
ORD
1 stop6h 25m
JetBlue
Wed 18/312:20 p.m.
ORD
-
BUF
1 stop7h 33m
JetBlue
Deal found 28/1C$ 263
Mon 20/41:08 p.m.
BUF
-
ORD
1 stop10h 31m
Frontier
Thu 23/410:25 a.m.
ORD
-
BUF
1 stop7h 48m
Frontier
Deal found 27/1C$ 288
Mon 23/23:05 p.m.
BUF
-
ORD
1 stop9h 21m
JetBlue
Thu 26/212:44 p.m.
ORD
-
BUF
1 stop4h 51m
JetBlue
Deal found 26/1C$ 322
Tue 7/41:02 p.m.
BUF
-
ORD
1 stop10h 37m
Frontier
Thu 9/45:15 a.m.
ORD
-
BUF
1 stop6h 02m
Frontier
Deal found 27/1C$ 329
Sat 14/23:00 p.m.
BUF
-
ORD
1 stop9h 21m
JetBlue
Wed 18/26:04 a.m.
ORD
-
BUF
1 stop6h 58m
JetBlue
Deal found 28/1C$ 337
Thu 7/51:08 p.m.
BUF
-
ORD
1 stop10h 31m
Frontier
Mon 11/56:57 a.m.
ORD
-
BUF
1 stop11h 16m
Frontier
Deal found 28/1C$ 345

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 29 January 2026.

Round-trip from

C$ 232

One-way from

C$ 117

Popular in

February

Cheapest in

January

Average price

C$ 333

Good round-trip deal

C$ 547 or less

Good one-way deal

C$ 242 or less
JetBlue
  • JetBlue
  • 18/3-25/3
  • 2 total stops
  • 13h 58m total
  • Buffalo to Chicago
Search Deals
JetBlue
  • JetBlue
  • 24/2
  • 1 total stop
  • 6h 59m total
  • Buffalo to Chicago
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
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.
Search Deals

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 29 January 2026.
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 25/2

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

1 stop7h 04m

Chicago O'Hare Intl

Wed 4/3

12:59 p.m.-6:46 p.m.

1 stop4h 47m

C$ 232

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 23/2

3:05 p.m.-11:26 p.m.

1 stop9h 21m

Chicago O'Hare Intl

Thu 26/2

12:44 p.m.-6:35 p.m.

1 stop4h 51m

C$ 322

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 14/2

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

1 stop9h 21m

Chicago O'Hare Intl

Wed 18/2

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

1 stop6h 58m

C$ 337

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 25/2

1:52 p.m.-3:01 p.m.

Nonstop2h 09m

Chicago O'Hare Intl

Wed 4/3

6:10 p.m.-8:51 p.m.

Nonstop1h 41m

C$ 349

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 17/3

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

Nonstop2h 00m

Chicago O'Hare Intl

Wed 18/3

1:55 p.m.-4:42 p.m.

Nonstop1h 47m

C$ 349

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 7/3

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

1 stop7h 04m

Chicago O'Hare Intl

Wed 11/3

12:44 p.m.-6:35 p.m.

1 stop4h 51m

C$ 356

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 7/5

7:00 a.m.-7:58 a.m.

Nonstop1h 58m

Chicago O'Hare Intl

Tue 12/5

6:15 p.m.-9:01 p.m.

Nonstop1h 46m

C$ 375

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 18/3

5:29 p.m.-6:40 p.m.

Nonstop2h 11m

Chicago O'Hare Intl

Sat 21/3

6:05 p.m.-8:46 p.m.

Nonstop1h 41m

C$ 398

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 18/3

5:29 p.m.-6:40 p.m.

Nonstop2h 11m

Chicago O'Hare Intl

Fri 20/3

6:05 p.m.-8:46 p.m.

Nonstop1h 41m

C$ 398

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 16/3

7:56 p.m.-10:00 a.m.

1 stop15h 04m

Chicago O'Hare Intl

Mon 23/3

5:40 p.m.-10:55 p.m.

1 stop4h 15m

C$ 399

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 22 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 23 January 2026.

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 December is currently the most expensive (average of C$ 352). 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 29 January 2026.

When flying from Buffalo to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 29 January 2026.
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
9,215 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

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
9,215 reviews
United Airlines
7.4
Good
9,215 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

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
11,205 reviews
United Airlines
7.4
Good
9,215 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

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 17 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 7h 04m. JetBlue provides one of the quickest options available for as low as C$ 232. Buffalo and Chicago O'Hare Intl Airport are separated by a distance of 760 km. This flight may include one or multiple stops.

  • 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$ 158. Another option worth looking into is United Airlines, starting at C$ 337 round trip. Users have found that American Airlines is 63% 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 GoJet (89%), Copa Airlines (83%) and American Airlines (80%).

  • 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$ 715, our data indicates the cheapest price to be C$ 143. The most popular route (Buffalo - Chicago O'Hare Intl), is priced around C$ 232.

  • 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 December is currently the most expensive (average of C$ 352). 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
Downers Grove
Elk Grove Village
Racine
Naperville
Bolingbrook
Romeoville

Browse thousands of different options on Cheapflights for your next trip

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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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 158AverageC$ 443FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 337AverageC$ 555FlexibilityNo cancel feeOn-time69%
Search United 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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