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Cheap flights from Buffalo to Chicago from C$ 147

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 8/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
7:00 a.m. - 1:10 p.m.BUF-ORD
7h 10m1 stop
JetBlue Logo
2:05 p.m. - 11:55 p.m.ORD-BUF
8h 50m1 stop
C$ 285JetBlue
Find Deal
mar., 20 janv. - mar., 10 févr.
JetBlue Logo
5:00 p.m. - 9:52 p.m.BUF-ORD
5h 52m1 stop
JetBlue Logo
11:25 a.m. - 5:24 p.m.ORD-BUF
4h 59m1 stop
C$ 289JetBlue
Find Deal
mer., 10 déc. - sam., 13 déc.
JetBlue Logo
6:05 a.m. - 10:35 a.m.BUF-ORD
5h 30m1 stop
JetBlue Logo
11:25 a.m. - 5:24 p.m.ORD-BUF
4h 59m1 stop
C$ 293JetBlue
Find Deal
dim., 7 déc. - sam., 13 déc.
Frontier Logo
12:15 p.m. - 5:47 p.m.BUF-ORD
6h 32m1 stop
Frontier Logo
5:11 a.m. - 1:37 p.m.ORD-BUF
7h 26m1 stop
C$ 323Frontier
Find Deal
lun., 27 oct. - jeu., 30 oct.
American Airlines Logo
6:00 a.m. - 1:41 p.m.BUF-ORD
8h 41m1 stop
American Airlines Logo
6:25 a.m. - 3:20 p.m.ORD-BUF
7h 55m1 stop
C$ 340American Airlines
Find Deal
mer., 12 nov. - mer., 19 nov.
American Airlines Logo
5:16 p.m. - 6:40 p.m.BUF-ORD
2h 24mdirect
American Airlines Logo
8:10 a.m. - 10:52 a.m.ORD-BUF
1h 42mdirect
C$ 350American Airlines
Find Deal
mar., 20 janv. - mar., 10 févr.
Multiple Airlines Logo
9:13 p.m. - 2:45 p.m.BUF-ORD
18h 32m2 stops
Multiple Airlines Logo
5:11 a.m. - 1:37 p.m.ORD-BUF
7h 26m1 stop
C$ 352Multiple Airlines
Find Deal
lun., 27 oct. - jeu., 30 oct.
Frontier Logo
12:47 p.m. - 11:35 p.m.BUF-ORD
11h 48m1 stop
Frontier Logo
9:00 a.m. - 5:11 p.m.ORD-BUF
7h 11m1 stop
C$ 371Frontier
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dim., 1 mars - mar., 3 mars
United Airlines Logo
5:40 p.m. - 6:46 p.m.BUF-ORD
2h 06mdirect
United Airlines Logo
7:25 a.m. - 10:03 a.m.ORD-BUF
1h 38mdirect
C$ 381United Airlines
Find Deal
sam., 8 nov. - lun., 10 nov.
United Airlines Logo
10:50 a.m. - 11:56 a.m.BUF-ORD
2h 06mdirect
United Airlines Logo
2:03 p.m. - 4:48 p.m.ORD-BUF
1h 45mdirect
C$ 385United Airlines
Find Deal
mer., 5 nov. - ven., 7 nov.

American Airlines flights from Buffalo to Chicago O'Hare Intl Airport

Our best American Airlines deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
American Airlines
12 Nov
BUF6:00 a.m.Buffalo
8h 41m
1 stop
ORD1:41 p.m.Chicago O'Hare Intl
19 Nov
ORD6:25 a.m.Chicago O'Hare Intl
7h 55m
1 stop
BUF3:20 p.m.Buffalo
C$ 340
Find similar
American Airlines
20 Jan
BUF5:16 p.m.Buffalo
2h 24m
ORD6:40 p.m.Chicago O'Hare Intl
10 Feb
ORD8:10 a.m.Chicago O'Hare Intl
1h 42m
BUF10:52 a.m.Buffalo
C$ 350
Find similar
American Airlines
20 Jan
BUF6:00 a.m.Buffalo
7h 25m
1 stop
ORD12:25 p.m.Chicago O'Hare Intl
10 Feb
ORD9:05 p.m.Chicago O'Hare Intl
1h 43m
BUF11:48 p.m.Buffalo
C$ 351
Find similar

United Airlines flights from Buffalo to Chicago O'Hare Intl Airport

Our best United Airlines deals on Buffalo to Chicago O'Hare Intl Airport flight tickets
United Airlines
8 Nov
BUF5:40 p.m.Buffalo
2h 06m
ORD6:46 p.m.Chicago O'Hare Intl
10 Nov
ORD7:25 a.m.Chicago O'Hare Intl
1h 38m
BUF10:03 a.m.Buffalo
C$ 381
Find similar
United Airlines
5 Nov
BUF10:50 a.m.Buffalo
2h 06m
ORD11:56 a.m.Chicago O'Hare Intl
7 Nov
ORD2:03 p.m.Chicago O'Hare Intl
1h 45m
BUF4:48 p.m.Buffalo
C$ 385
Find similar
United Airlines
31 Dec
BUF6:30 a.m.Buffalo
2h 07m
ORD7:37 a.m.Chicago O'Hare Intl
31 Dec
ORD6:25 p.m.Chicago O'Hare Intl
1h 52m
BUF9:17 p.m.Buffalo
C$ 409
Find similar

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 16 octobre 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

Fly to

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mar. 20/1

7:00 a.m.-1:10 p.m.

1 stop7h 10m

Chicago O'Hare Intl

mar. 10/2

2:05 p.m.-11:55 p.m.

1 stop8h 50m

C$ 285

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mer. 10/12

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

1 stop5h 52m

Chicago O'Hare Intl

sam. 13/12

11:25 a.m.-5:24 p.m.

1 stop4h 59m

C$ 289

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

dim. 7/12

6:05 a.m.-10:35 a.m.

1 stop5h 30m

Chicago O'Hare Intl

sam. 13/12

11:25 a.m.-5:24 p.m.

1 stop4h 59m

C$ 293

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

lun. 27/10

12:15 p.m.-5:47 p.m.

1 stop6h 32m

Chicago O'Hare Intl

jeu. 30/10

5:11 a.m.-1:37 p.m.

1 stop7h 26m

C$ 323

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mer. 12/11

6:00 a.m.-1:41 p.m.

1 stop8h 41m

Chicago O'Hare Intl

mer. 19/11

6:25 a.m.-3:20 p.m.

1 stop7h 55m

C$ 340

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mar. 20/1

5:16 p.m.-6:40 p.m.

Nonstop2h 24m

Chicago O'Hare Intl

mar. 10/2

8:10 a.m.-10:52 a.m.

Nonstop1h 42m

C$ 350

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

lun. 27/10

9:13 p.m.-2:45 p.m.

2 stops18h 32m

Chicago O'Hare Intl

jeu. 30/10

5:11 a.m.-1:37 p.m.

1 stop7h 26m

C$ 352

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

dim. 1/3

12:47 p.m.-11:35 p.m.

1 stop11h 48m

Chicago O'Hare Intl

mar. 3/3

9:00 a.m.-5:11 p.m.

1 stop7h 11m

C$ 371

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sam. 8/11

5:40 p.m.-6:46 p.m.

Nonstop2h 06m

Chicago O'Hare Intl

lun. 10/11

7:25 a.m.-10:03 a.m.

Nonstop1h 38m

C$ 381

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mer. 5/11

10:50 a.m.-11:56 a.m.

Nonstop2h 06m

Chicago O'Hare Intl

ven. 7/11

2:03 p.m.-4:48 p.m.

Nonstop1h 45m

C$ 385

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Chicago O'Hare Intl Airport?

In general, August 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$ 382. The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Buffalo averaging around C$ 400.

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$ 660. 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$ 1,029.

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$ 683. 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$ 1,068 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 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$ 476 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$ 357 on momondo.

What cabin class options are available on Buffalo to Chicago O'Hare Intl flights?

There are 4 cabin classes available to choose from on Buffalo to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

You could potentially save up to 38% 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 October 2025, prices for Buffalo to Chicago O'Hare Intl Airport flights are approximately 35% cheaper 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$ 271

Fastest flight time

1h 48m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Buffalo in the past 72 hours is C$ 271. The best round-trip flight deal from Buffalo to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is C$ 469.
The fastest flight from Buffalo to Chicago O'Hare Intl Airport takes 1h 48m
Direct flights go from Buffalo to Chicago O'Hare Intl Airport every day.
Search flight deals

  • 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 2h 00m.

  • 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$ 313Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
United AirlinesPriceFrom C$ 348Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights

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

    United Airlines operates around 21 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$ 401, but momondo users have found United Airlines deals from Buffalo to Chicago O'Hare Intl Airport from as low as C$ 248 round-trip. United Airlines has been scored 7.4/10 in 8,982 reviews.

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

    American Airlines (7.2/10 from 11,043 reviews) operates around 20 flights from Buffalo to Chicago O'Hare Intl Airport in any given week. The average American Airlines airfare for this route is around C$ 333, with deals from around C$ 223 rare but found on momondo. Referenced prices are for round-trip Buffalo to Chicago O'Hare Intl Airport flight searches in the last 72 hours.

Travelling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Schaumburg
Rosemont
Hoffman Estates
Tinley Park
Munster
Hammond
Naperville
Glenview
Great Lakes
Wheeling
Des Plaines
Harvard
Merrillville
Elk Grove Village
Oak Brook
Elmhurst
Kenosha
Skokie
Rockford

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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