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Cheap flights from Buffalo to Chicago from C$ 116

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — CHI
31 May — 7 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Buffalo to Chicago are usually found in August or September, booked 35 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Buffalo to Chicago

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to Chicago
Explore the most affordable flight options available from Buffalo to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Sat 6/67:00 a.m.
BUF
-
ORD
Nonstop1h 59m
United Airlines
Wed 10/62:00 p.m.
ORD
-
BUF
Nonstop1h 46m
United Airlines
Deal found 28/4C$ 342
Tue 19/56:25 a.m.
BUF
-
ORD
1 stop3h 20m
Delta
Tue 19/57:00 p.m.
ORD
-
BUF
1 stop3h 59m
Delta
Deal found 28/4C$ 351
Thu 4/611:36 a.m.
BUF
-
ORD
1 stop9h 15m
Frontier
Mon 8/64:05 p.m.
ORD
-
BUF
2 stops18h 05m
Frontier
Deal found 27/4C$ 356
Fri 29/52:49 p.m.
BUF
-
ORD
1 stop18h 06m
Frontier
Mon 1/64:05 p.m.
ORD
-
BUF
2 stops17h 36m
Frontier
Deal found 28/4C$ 360
Sat 23/57:00 a.m.
BUF
-
ORD
Nonstop1h 59m
United Airlines
Mon 25/52:00 p.m.
ORD
-
BUF
Nonstop1h 46m
United Airlines
Deal found 26/4C$ 361
Sat 16/52:47 p.m.
BUF
-
ORD
1 stop9h 26m
Frontier
Mon 18/51:59 p.m.
ORD
-
BUF
1 stop19h 42m
Frontier
Deal found 28/4C$ 363
Thu 4/68:00 a.m.
BUF
-
ORD
Nonstop2h 04m
American Airlines
Mon 8/610:01 p.m.
ORD
-
BUF
Nonstop1h 37m
American Airlines
Deal found 27/4C$ 364
Thu 21/56:00 a.m.
BUF
-
ORD
1 stop5h 40m
American Airlines
Mon 25/56:40 a.m.
ORD
-
BUF
Nonstop1h 51m
American Airlines
Deal found 26/4C$ 376
Thu 4/64:55 p.m.
BUF
-
ORD
1 stop8h 04m
Delta
Sat 6/63:00 p.m.
ORD
-
BUF
1 stop7h 59m
Delta
Deal found 28/4C$ 389
Tue 2/67:00 a.m.
BUF
-
ORD
Nonstop1h 59m
United Airlines
Fri 5/66:17 p.m.
ORD
-
BUF
Nonstop1h 46m
United Airlines
Deal found 28/4C$ 400
Tue 9/65:52 p.m.
BUF
-
ORD
Nonstop1h 59m
United Airlines
Wed 10/62:00 p.m.
ORD
-
BUF
Nonstop1h 46m
United Airlines
Deal found 29/4C$ 417
Tue 9/65:52 p.m.
BUF
-
ORD
Nonstop1h 59m
United Airlines
Tue 16/66:17 p.m.
ORD
-
BUF
Nonstop1h 46m
United Airlines
Deal found 28/4C$ 419

Find flight deals from Buffalo to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Chicago (CHI). 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 1 May 2026.

Round-trip from

C$ 342

One-way from

C$ 116

Popular in

March

Cheapest in

August

Average price

C$ 445

Good round-trip deal

C$ 419 or less

Good one-way deal

C$ 250 or less
United Airlines
  • United Airlines
  • 6/6-10/6
  • Nonstop
  • 3h 45m total
  • Buffalo to Chicago
Search Deals
Frontier
  • Frontier
  • 3/6
  • 1 total stop
  • 18h 06m total
  • Buffalo to Chicago
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Buffalo to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Buffalo to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Chicago 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 1 May 2026.
Use the filters below to find and compare flights from Buffalo to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 21/5

6:00 a.m.-7:03 a.m.

Nonstop2h 03m

Chicago O'Hare Intl

Mon 25/5

7:11 p.m.-9:57 p.m.

Nonstop1h 46m

C$ 363

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 21/5

6:25 a.m.-8:45 a.m.

1 stop3h 20m

Chicago O'Hare Intl

Mon 25/5

7:00 p.m.-11:59 p.m.

1 stop3h 59m

C$ 389

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 23/5

5:26 p.m.-12:07 a.m.

1 stop7h 41m

Chicago O'Hare Intl

Mon 25/5

7:00 p.m.-11:59 p.m.

1 stop3h 59m

C$ 389
Quickest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 9/6

5:52 p.m.-6:51 p.m.

Nonstop1h 59m

Chicago O'Hare Intl

Wed 10/6

2:00 p.m.-4:46 p.m.

Nonstop1h 46m

C$ 417

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 6/6

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

Nonstop1h 59m

Chicago O'Hare Intl

Tue 16/6

2:00 p.m.-4:46 p.m.

Nonstop1h 46m

C$ 438

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Mon 25/5

5:45 a.m.-12:50 p.m.

2 stops8h 05m

Chicago O'Hare Intl

Wed 27/5

2:00 p.m.-9:45 p.m.

1 stop6h 45m

C$ 472

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 3/7

4:12 p.m.-10:48 p.m.

1 stop7h 36m

Chicago O'Hare Intl

Mon 6/7

5:22 p.m.-11:59 p.m.

1 stop5h 37m

C$ 503

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 1/8

6:29 a.m.-10:28 a.m.

1 stop4h 59m

Chicago O'Hare Intl

Tue 4/8

5:15 a.m.-11:11 a.m.

1 stop4h 56m

C$ 503

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 5/6

6:04 a.m.-7:09 p.m.

1 stop14h 05m

Chicago O'Hare Intl

Sun 7/6

7:01 a.m.-11:24 a.m.

1 stop3h 23m

C$ 514
Cheapest one-way

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 21/5

6:25 a.m.-8:45 a.m.

1 stop3h 20m

C$ 195

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/4

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Buffalo to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

How far ahead should I book a flight from Buffalo to Chicago?

The best time to book flights from Buffalo to Chicago is 34 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 Buffalo to Chicago?

Currently, March is the cheapest month in which you can book a flight from Buffalo to Chicago (average of C$ 100). Flying from Buffalo to Chicago in April is currently the most expensive (average of C$ 273). 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 CHI?

Find hourly flight availability from Buffalo to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 May 2026.

When flying from Buffalo to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 41% versus a flight at noon.

What is the cheapest day to fly from Buffalo to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Chicago. Price data was last updated on 25 April 2026.

Travelers seeking maximum savings on their Buffalo to Chicago flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Buffalo to Chicago

Explore weekly flight availability from Buffalo to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 1 May 2026.

The most flights from BUF to CHI are scheduled on a Thursday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

How much does it cost to fly round-trip from Buffalo to Chicago?

What’s the top layover airport for flights from Buffalo to Chicago?

Share of one-stop round-trip flights from Buffalo to Chicago chosen by Cheapflights users in the past 12 months, using the same layover each way.

Atlanta (ATL) – chosen by Cheapflights users on 75% of one-stop itineraries from Buffalo to Chicago on Cheapflights.

What’s the cheapest layover airport for flights from Buffalo to Chicago?

Average round-trip fare for 1-stop flights from Buffalo to Chicago, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of C$ 331.

What’s the fastest layover option from Buffalo to Chicago?

Shortest average travel time for 1-stop one-way flights from Buffalo to Chicago, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Tampa (TPA) have the shortest average one-way travel time for 1-stop routes: 6h 57m.

Which airport typically offers the quickest layover for flights from Buffalo to Chicago?

Average layover duration for 1-stop one-way flights from Buffalo to Chicago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Tampa (TPA) offer the fastest connection on this route, with an average layover time of 1h 48m.

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 1 May 2026.
Get a feel of what it's like to fly with Southwest,American Airlines, andFrontier from Buffalo to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,315 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,315 reviews
Southwest
8.0
Very good
4,315 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,678 reviews
Southwest
8.0
Very good
4,315 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
2,972 reviews
Southwest
8.0
Very good
4,315 reviews
Check prices

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to Chicago. 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?

    If you book a flight to Chicago from Buffalo, you will be flying from Buffalo, which is the city’s only airport. Buffalo (BUF) is located 13.4 km from the centre of Buffalo. There are 25 flights from Buffalo to Chicago per day from 2 different airlines.

  • How long is the flight from Buffalo to Chicago?

    Departing from Buffalo to Chicago will take you 1h 59m. Airlines will cover a distance of 760 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines flying from Buffalo to Chicago round-trip?

    Flying on Southwest is currently your cheapest option to Chicago, with prices starting at C$ 316. Another option worth looking into is American Airlines, starting at C$ 369 round trip. You may be able to fly from Buffalo to Chicago for 26% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Buffalo to Chicago?

    The top 3 most reliable airlines when flying from Buffalo to Chicago are SWISS (82%), Copa Airlines (82%) and Japan Airlines (78%).

  • What are the cheapest flights from Buffalo to Chicago?

    While on average a flight from Buffalo to Chicago is generally C$ 915, our data shows the cheapest flight currently is C$ 216. When looking at the most popular route, (Buffalo - Chicago O'Hare Intl), you can expect to pay C$ 319 for that flight.

  • Can I find deals for flights from Buffalo to Chicago that include hotel bookings?

    Yes. In addition to deals on Buffalo to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to Chicago.

  • Can I find deals for business class flights from Buffalo to Chicago?

    Yes. Cheapflights offers flight deals from Buffalo to Chicago 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?

    Currently, March is the cheapest month in which you can book a flight from Buffalo to Chicago (average of C$ 100). Flying from Buffalo to Chicago in April is currently the most expensive (average of C$ 273). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Buffalo to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Buffalo to O'Hare Intl flights
Buffalo to St. Louis flights

Top 2 airlines flying from Buffalo to Chicago

Discover the top 2 airlines that operate flights from Buffalo to Chicago. 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 1 May 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 316AverageC$ 375FlexibilityNo cancel feeOn-time63%
Search Southwest flights
American AirlinesCheapestC$ 369AverageC$ 455FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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

How does Cheapflights help users find flights from Buffalo to Chicago?

When you search for this flight from Buffalo to Chicago, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Chicago?

Cheapflights helps you find that perfect flight to Chicago 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 Chicago with no change fees?

Certainly. Search results for flights to Chicago 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 Chicago become cheaper?

Yes, Cheapflights offers price alerts on Buffalo to Chicago flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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