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Cheap flights from Buffalo to Chicago from C$ 104

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 27/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — CHI
17 Apr — 24 Apr1
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 18 March 2026.

Tue 14/41:56 p.m.
BUF
-
ORD
1 stop28h 04m
Frontier
Tue 21/46:08 p.m.
ORD
-
BUF
1 stop17h 34m
Frontier
Deal found 13/3C$ 233
Tue 5/511:36 a.m.
BUF
-
ORD
1 stop9h 15m
Frontier
Thu 14/55:30 p.m.
ORD
-
BUF
1 stop24h 16m
Frontier
Deal found 17/3C$ 263
Tue 14/41:56 p.m.
BUF
-
ORD
1 stop28h 04m
Multiple Airlines
Tue 21/47:15 p.m.
ORD
-
BUF
2 stops16h 27m
Multiple Airlines
Deal found 13/3C$ 285
Tue 21/47:00 a.m.
BUF
-
ORD
Nonstop1h 57m
United Airlines
Tue 21/46:02 p.m.
ORD
-
BUF
Nonstop1h 41m
United Airlines
Deal found 17/3C$ 325
Fri 1/52:28 p.m.
BUF
-
ORD
1 stop8h 08m
JetBlue
Fri 8/56:00 a.m.
ORD
-
BUF
1 stop6h 33m
JetBlue
Deal found 17/3C$ 330
Tue 5/511:31 a.m.
BUF
-
ORD
Nonstop2h 03m
American Airlines
Thu 14/511:40 a.m.
ORD
-
BUF
Nonstop1h 41m
American Airlines
Deal found 17/3C$ 345
Tue 28/46:00 a.m.
BUF
-
ORD
1 stop5h 09m
Delta
Tue 5/55:04 p.m.
ORD
-
BUF
1 stop4h 35m
Delta
Deal found 17/3C$ 352
Thu 16/47:00 a.m.
BUF
-
ORD
Nonstop1h 57m
United Airlines
Thu 23/47:22 a.m.
ORD
-
BUF
Nonstop1h 50m
United Airlines
Deal found 17/3C$ 363
Tue 5/511:36 a.m.
BUF
-
ORD
1 stop21h 19m
Multiple Airlines
Thu 14/56:05 p.m.
ORD
-
BUF
2 stops23h 41m
Multiple Airlines
Deal found 17/3C$ 368
Tue 28/46:05 a.m.
BUF
-
ORD
1 stop5h 14m
Delta
Sat 2/57:00 a.m.
ORD
-
BUF
1 stop3h 45m
Delta
Deal found 17/3C$ 371
Thu 30/42:28 p.m.
BUF
-
ORD
1 stop8h 08m
JetBlue
Thu 7/56:00 a.m.
ORD
-
BUF
1 stop6h 33m
JetBlue
Deal found 16/3C$ 374
Sat 18/41:35 p.m.
BUF
-
ORD
1 stop6h 48m
Delta
Mon 20/46:00 a.m.
ORD
-
BUF
1 stop6h 54m
Delta
Deal found 16/3C$ 388

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 18 March 2026.

Round-trip from

C$ 233

One-way from

C$ 104

Popular in

March

Cheapest in

August

Average price

C$ 637

Good round-trip deal

C$ 452 or less

Good one-way deal

C$ 185 or less
Frontier
  • Frontier
  • 14/4-21/4
  • 2 total stops
  • 45h 38m total
  • Buffalo to Chicago
Search Deals
Frontier
  • Frontier
  • 27/4
  • 1 total stop
  • 29h 28m total
  • Buffalo to Chicago
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 18 March 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
Quickest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 18/4

7:00 a.m.-7:57 a.m.

Nonstop1h 57m

Chicago O'Hare Intl

Tue 21/4

6:02 p.m.-8:43 p.m.

Nonstop1h 41m

C$ 363

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 18/4

1:35 p.m.-7:23 p.m.

1 stop6h 48m

Chicago O'Hare Intl

Mon 20/4

6:00 a.m.-1:54 p.m.

1 stop6h 54m

C$ 388

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 18/4

10:50 a.m.-11:53 a.m.

Nonstop2h 03m

Chicago O'Hare Intl

Mon 20/4

2:33 p.m.-5:16 p.m.

Nonstop1h 43m

C$ 446

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 5/6

6:25 a.m.-10:29 a.m.

1 stop5h 04m

Chicago O'Hare Intl

Mon 8/6

5:45 p.m.-11:03 p.m.

1 stop4h 18m

C$ 461

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 18/6

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

Nonstop1h 59m

Chicago O'Hare Intl

Mon 22/6

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

Nonstop1h 46m

C$ 478

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 26/7

6:00 a.m.-9:36 a.m.

1 stop4h 36m

Chicago O'Hare Intl

Tue 28/7

10:31 a.m.-1:19 p.m.

Nonstop1h 48m

C$ 519
Cheapest one-way
Quickest one-way

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 16/4

7:00 a.m.-7:57 a.m.

Nonstop1h 57m

C$ 182

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 30/4

11:02 a.m.-12:00 p.m.

Nonstop1h 58m

C$ 182

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 20/5

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

Nonstop1h 58m

C$ 182

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 14/4

9:25 a.m.-12:50 p.m.

1 stop4h 25m

C$ 196

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/3

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Chicago. Price data was last updated on 13 March 2026.

The best time to book flights from Buffalo to Chicago is 35 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, July is the cheapest month in which you can book a flight from Buffalo to Chicago (average of C$ 105). Flying from Buffalo to Chicago in December is currently the most expensive (average of C$ 355). 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 18 March 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 14 March 2026.

Travelers seeking maximum savings on their Buffalo to Chicago flight should consider departing on Tuesday 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 18 March 2026.

The most flights from BUF to CHI are scheduled on a Monday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 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 60% 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$ 332.

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 Baltimore (BWI) have the shortest average one-way travel time for 1-stop routes: 5h 15m.

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 18 March 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
4,320 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,320 reviews
Southwest
8.0
Very good
4,320 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
American Airlines
7.1
Good
11,469 reviews
Southwest
8.0
Very good
4,320 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Frontier
5.7
Fair
3,025 reviews
Southwest
8.0
Very good
4,320 reviews
Check prices

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

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 23 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 57m. 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$ 318. Another option worth looking into is United Airlines, starting at C$ 340 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 Qatar Airways (81%), SWISS (74%) and Envoy Air (74%).

  • What are the cheapest flights from Buffalo to Chicago?

    While on average a flight from Buffalo to Chicago is generally C$ 990, our data shows the cheapest flight currently is C$ 195. When looking at the most popular route, (Buffalo - Chicago O'Hare Intl), you can expect to pay C$ 308 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, July is the cheapest month in which you can book a flight from Buffalo to Chicago (average of C$ 105). Flying from Buffalo to Chicago in December is currently the most expensive (average of C$ 355). 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

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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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapestC$ 318AverageC$ 376FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 340AverageC$ 534FlexibilityNo cancel feeOn-time69%
Search United 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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