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Cheap flights from Buffalo to Chicago from C$ 104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to Chicago departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 a.m. - 7:58 a.m.
BUF
-
ORD
1h 58mdirect
United Airlines Logo
7:00 a.m. - 9:42 a.m.
ORD
-
BUF
1h 42mdirect
C$ 343United Airlines
Sat, 16 May - Tue, 19 May
Delta Logo
6:25 a.m. - 8:45 a.m.
BUF
-
ORD
3h 20m
1 stop
Delta Logo
7:00 p.m. - 11:59 p.m.
ORD
-
BUF
3h 59m
1 stop
C$ 352Delta
Tue, 19 May - Tue, 19 May
Frontier Logo
11:36 a.m. - 7:51 p.m.
BUF
-
ORD
9h 15m
1 stop
Frontier Logo
4:05 p.m. - 11:10 a.m.
ORD
-
BUF
18h 05m
2 stops
C$ 357Frontier
Thu, 4 Jun - Mon, 8 Jun
Frontier Logo
2:49 p.m. - 7:55 a.m.
BUF
-
ORD
18h 06m
1 stop
Frontier Logo
4:05 p.m. - 10:41 a.m.
ORD
-
BUF
17h 36m
2 stops
C$ 361Frontier
Fri, 29 May - Mon, 1 Jun
United Airlines Logo
7:00 a.m. - 7:59 a.m.
BUF
-
ORD
1h 59mdirect
United Airlines Logo
6:17 p.m. - 9:03 p.m.
ORD
-
BUF
1h 46mdirect
C$ 363United Airlines
Sat, 23 May - Sat, 30 May
Frontier Logo
2:47 p.m. - 11:13 p.m.
BUF
-
ORD
9h 26m
1 stop
Frontier Logo
1:59 p.m. - 10:41 a.m.
ORD
-
BUF
19h 42m
1 stop
C$ 364Frontier
Sat, 16 May - Mon, 18 May
American Airlines Logo
8:00 a.m. - 9:04 a.m.
BUF
-
ORD
2h 04mdirect
American Airlines Logo
10:01 p.m. - 12:38 a.m.
ORD
-
BUF
1h 37mdirect
C$ 365American Airlines
Thu, 4 Jun - Mon, 8 Jun
American Airlines Logo
6:00 a.m. - 10:40 a.m.
BUF
-
ORD
5h 40m
1 stop
American Airlines Logo
6:40 a.m. - 9:31 a.m.
ORD
-
BUF
1h 51mdirect
C$ 378American Airlines
Thu, 21 May - Mon, 25 May
Frontier Logo
7:57 p.m. - 11:05 p.m.
BUF
-
ORD
28h 08m
1 stop
Frontier Logo
5:30 p.m. - 7:07 p.m.
ORD
-
BUF
24h 37m
1 stop
C$ 384Frontier
Wed, 12 Aug - Sun, 23 Aug
Delta Logo
6:25 a.m. - 8:45 a.m.
BUF
-
ORD
3h 20m
1 stop
Delta Logo
7:00 p.m. - 11:59 p.m.
ORD
-
BUF
3h 59m
1 stop
C$ 390Delta
Thu, 21 May - Mon, 25 May

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Delta flights from Buffalo to Chicago O'Hare Intl Airport

Our best Delta deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
Delta
19 May
BUF6:25 a.m.Buffalo
3h 20m
1 stop
ORD8:45 a.m.Chicago O'Hare Intl
19 May
ORD7:00 p.m.Chicago O'Hare Intl
3h 59m
1 stop
BUF11:59 p.m.Buffalo
C$ 352
Delta
21 May
BUF6:25 a.m.Buffalo
3h 20m
1 stop
ORD8:45 a.m.Chicago O'Hare Intl
25 May
ORD7:00 p.m.Chicago O'Hare Intl
3h 59m
1 stop
BUF11:59 p.m.Buffalo
C$ 390
Delta
3 Jun
BUF6:25 a.m.Buffalo
3h 20m
1 stop
ORD8:45 a.m.Chicago O'Hare Intl
11 Jun
ORD1:00 p.m.Chicago O'Hare Intl
10h 38m
1 stop
BUF12:38 a.m.Buffalo
C$ 424

Frontier flights from Buffalo to Chicago O'Hare Intl Airport

Our best Frontier deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
Frontier
4 Jun
BUF11:36 a.m.Buffalo
9h 15m
1 stop
ORD7:51 p.m.Chicago O'Hare Intl
8 Jun
ORD4:05 p.m.Chicago O'Hare Intl
18h 05m
2 stops
BUF11:10 a.m.Buffalo
C$ 357
Frontier
29 May
BUF2:49 p.m.Buffalo
18h 06m
1 stop
ORD7:55 a.m.Chicago O'Hare Intl
1 Jun
ORD4:05 p.m.Chicago O'Hare Intl
17h 36m
2 stops
BUF10:41 a.m.Buffalo
C$ 361
Frontier
16 May
BUF2:47 p.m.Buffalo
9h 26m
1 stop
ORD11:13 p.m.Chicago O'Hare Intl
18 May
ORD1:59 p.m.Chicago O'Hare Intl
19h 42m
1 stop
BUF10:41 a.m.Buffalo
C$ 364

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Chicago O'Hare Intl Airport 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, momondo users made 96,600 searches. Data last updated 30 April 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 16/5

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

Nonstop1h 58m

Chicago O'Hare Intl

Tue 19/5

7:00 a.m.-9:42 a.m.

Nonstop1h 42m

C$ 343

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Tue 19/5

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

1 stop3h 20m

Chicago O'Hare Intl

Tue 19/5

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

1 stop3h 59m

C$ 352

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 4/6

11:36 a.m.-7:51 p.m.

1 stop9h 15m

Chicago O'Hare Intl

Mon 8/6

4:05 p.m.-11:10 a.m.

2 stops18h 05m

C$ 357

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 29/5

2:49 p.m.-7:55 a.m.

1 stop18h 06m

Chicago O'Hare Intl

Mon 1/6

4:05 p.m.-10:41 a.m.

2 stops17h 36m

C$ 361

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 23/5

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

Nonstop1h 59m

Chicago O'Hare Intl

Sat 30/5

6:17 p.m.-9:03 p.m.

Nonstop1h 46m

C$ 363

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 16/5

2:47 p.m.-11:13 p.m.

1 stop9h 26m

Chicago O'Hare Intl

Mon 18/5

1:59 p.m.-10:41 a.m.

1 stop19h 42m

C$ 364

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 4/6

8:00 a.m.-9:04 a.m.

Nonstop2h 04m

Chicago O'Hare Intl

Mon 8/6

10:01 p.m.-12:38 a.m.

Nonstop1h 37m

C$ 365

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 21/5

6:00 a.m.-10:40 a.m.

1 stop5h 40m

Chicago O'Hare Intl

Mon 25/5

6:40 a.m.-9:31 a.m.

Nonstop1h 51m

C$ 378

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 12/8

7:57 p.m.-11:05 p.m.

1 stop28h 08m

Chicago O'Hare Intl

Sun 23/8

5:30 p.m.-7:07 p.m.

1 stop24h 37m

C$ 384

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$ 390

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Buffalo to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Buffalo and Chicago O'Hare Intl Airport?

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

In general, January is the cheapest month to fly from Buffalo to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 323. The month of August is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Buffalo averaging around C$ 350.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as C$ 618. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Buffalo to Chicago O'Hare Intl Airport for around C$ 1,237.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

In the morning is the cheapest time of day to fly from Buffalo to Chicago O'Hare Intl Airport when you can find flight prices for as low as C$ 633. Flying to Chicago O'Hare Intl Airport in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 1,468 on average. Flights to Chicago O'Hare Intl Airport from Buffalo at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Buffalo to Chicago O'Hare Intl flight route?

Fly from Buffalo to Chicago O'Hare Intl for the best Buffalo - Chicago O'Hare Intl flight prices

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around C$ 433 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Buffalo for as low as C$ 166 on momondo.

Can stopping save me money on Buffalo to Chicago O'Hare Intl Airport flights?

You could potentially save up to 72% on your flight if you consider stops on a Buffalo to Chicago O'Hare Intl Airport flight.

How have Buffalo to Chicago O'Hare Intl Airport flight prices changed over time?

As of April 2026, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 28% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to Chicago O'Hare Intl Airport (BUF to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Chicago O'Hare Intl Airport

Best price found

C$ 350

Fastest flight time

1h 58m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Buffalo in the past 72 hours is C$ 350. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 500.
The fastest flight from Buffalo to Chicago O'Hare Intl Airport takes 1h 58m
Direct flights go from Buffalo to Chicago O'Hare Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Buffalo to Chicago O'Hare Intl Airport

  • How far is Buffalo to Chicago O'Hare Intl by plane?

    There are 746.7 km between Buffalo and Chicago O'Hare Intl. In terms of flight time, this usually takes a little over 1h 58m.

  • When did momondo last update prices for flights from Buffalo Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Buffalo Airport to Chicago O'Hare Intl Airport refresh daily.

  • How many operators does momondo search for flights from Buffalo Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Buffalo Airport to Chicago O'Hare Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Buffalo Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents required for your trip to Chicago O'Hare Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Buffalo to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Buffalo to Chicago O'Hare Intl Airport?

Best airlines flying from Buffalo to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Buffalo to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom C$ 371Free CancellationRating
7.1
11,681 reviews
Search American Airlines flights

  • American Airlines Flights From Buffalo to Chicago O'Hare Intl Airport

    American Airlines operates around 9 flights from Buffalo to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been C$ 456, but momondo users have found American Airlines deals from Buffalo to Chicago O'Hare Intl Airport from as low as C$ 371 round-trip. American Airlines has been scored 7.1/10 in 11,681 reviews.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Schaumburg
Des Plaines
Merrillville
Rosemont
Northbrook
Tinley Park
Downers Grove
Skokie
Great Lakes
Wheeling
Hammond
Glenview
Harvey
Naperville
Munster
Hoffman Estates
Elmhurst
Harvard
DeKalb
Kankakee

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Chicago?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Buffalo to Chicago. momondo saves you time and could save you money on your trip.

Can I find flights from Buffalo to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Buffalo with this policy.

How can momondo help me find flights from Buffalo to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Buffalo.

I’m not ready to book a flight from Buffalo to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Buffalo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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