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$70+ Cheap flights from O'Hare Intl (ORD) to Buffalo (BUF)

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Jan 23 — Jan 301
Fri 1/23
Fri 1/30
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Buffalo are usually found in September or January, booked 83 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from O'Hare Intl to Buffalo

Cheapest flights from O'Hare Intl to Buffalo
Explore the most affordable flight options available from O'Hare Intl to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 24, 2025.

This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:02 pmORD - BUF
1 stop3h 31mDelta
Sun 1/46:10 amBUF - ORD
1 stop3h 51mDelta
Deal found 12/21$357
This Frontier deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:10 amORD - BUF
1 stop11h 00mFrontier
Wed 12/315:44 pmBUF - ORD
1 stop5h 40mFrontier
Deal found 12/22$362
This American Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:16 pmORD - BUF
Nonstop1h 43mAmerican Airlines
Sun 1/47:00 amBUF - ORD
Nonstop2h 18mAmerican Airlines
Deal found 12/21$367
This Frontier deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 amORD - BUF
1 stop9h 44mFrontier
Fri 1/25:40 pmBUF - ORD
1 stop5h 44mFrontier
Deal found 12/23$393
This Expedia deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:14 pmORD - BUF
1 stop4h 59mFrontier
Sat 12/275:49 pmBUF - ORD
1 stop18h 49mFrontier
Deal found 12/21$422
This United Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/292:04 pmORD - BUF
Nonstop1h 50mUnited Airlines
Wed 12/315:35 pmBUF - ORD
Nonstop2h 15mUnited Airlines
Deal found 12/22$442
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:09 pmORD - BUF
1 stop7h 31mMultiple Airlines
Sun 1/47:58 pmBUF - ORD
2 stops41h 56mMultiple Airlines
Deal found 12/21$458
This Priceline deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:14 pmORD - BUF
1 stop4h 59mMultiple Airlines
Sat 12/2711:04 amBUF - ORD
1 stop9h 16mMultiple Airlines
Deal found 12/21$500
This United Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:04 pmORD - BUF
Nonstop1h 50mUnited Airlines
Wed 12/315:35 pmBUF - ORD
Nonstop2h 15mUnited Airlines
Deal found 12/22$501
This United Airlines deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:53 pmORD - BUF
1 stop6h 02mUnited Airlines
Wed 12/315:35 pmBUF - ORD
Nonstop2h 15mUnited Airlines
Deal found 12/22$511

Find flight deals from O'Hare Intl to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Buffalo (BUF). 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 December 24, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$162
(Frontier)

One-way from

$70
(Expedia)

Popular in

February

Cheapest in

September

Average price

$350

Good round-trip deal

$324 or less

Good one-way deal

$150 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Buffalo flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Buffalo flights.
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From Chicago O'Hare Intl to Buffalo
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One-way flight from Chicago O'Hare Intl to Buffalo
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Buffalo.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Buffalo.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Buffalo 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 2,558,603 searches. Data last updated December 24, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Buffalo that are best for you.

Fly from

O'Hare Intl

Fly to

Buffalo

Route

Depart

Return

Price

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/26

5:05 am-12:54 pm

1 stop6h 49m

Buffalo

Tue 3/3

6:00 am-11:48 am

1 stop6h 48m

$167

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Mon 2/23

6:04 am-2:02 pm

1 stop6h 58m

Buffalo

Thu 2/26

6:00 am-11:48 am

1 stop6h 48m

$171

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 2/24

12:41 pm-6:33 pm

1 stop4h 52m

Buffalo

Thu 2/26

6:00 am-11:48 am

1 stop6h 48m

$171

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 1/11

7:45 am-2:30 pm

1 stop5h 45m

Buffalo

Sat 1/17

10:00 am-5:43 pm

1 stop8h 43m

$171

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 2/25

12:41 pm-6:33 pm

1 stop4h 52m

Buffalo

Sat 2/28

6:00 am-11:58 am

1 stop6h 58m

$223

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 1/17

8:10 am-10:52 am

Nonstop1h 42m

Buffalo

Sun 1/18

7:30 am-8:53 am

Nonstop2h 23m

$224

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 1/31

7:45 am-11:47 pm

2 stops15h 02m

Buffalo

Sun 2/1

10:00 am-5:25 pm

1 stop8h 25m

$225

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 2/5

5:40 am-12:44 pm

1 stop6h 04m

Buffalo

Tue 2/10

7:17 pm-4:42 pm

2 stops22h 25m

$229

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 1/17

5:59 pm-11:56 pm

1 stop4h 57m

Buffalo

Sun 1/18

6:03 am-9:41 am

1 stop4h 38m

$243

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 2/22

6:04 am-2:02 pm

1 stop6h 58m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 19 results
1
2

Compare providers for flights from O'Hare Intl to Buffalo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Buffalo in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Buffalo flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from O'Hare Intl 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 Chicago O'Hare Intl Airport to Buffalo

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Buffalo. Price data was last updated on December 19, 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to Buffalo may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Buffalo?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buffalo (average of $98). Flying from Chicago O'Hare Intl Airport to Buffalo in March is currently the most expensive (average of $238). 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 ORD to BUF?

Find hourly flight availability from O'Hare Intl to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 24, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Buffalo in the evening. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Buffalo?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Buffalo. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Buffalo flight should consider departing on Monday evenings when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated December 24, 2025.
See what other customers who have flown with United Airlines, American Airlines, and Frontier from Chicago O'Hare Intl Airport to Buffalo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,107 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,107 reviews
United Airlines
7.4
Good
9,107 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
American Airlines
7.2
Good
11,050 reviews
United Airlines
7.4
Good
9,107 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Frontier
5.8
Fair
3,073 reviews
United Airlines
7.4
Good
9,107 reviews

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Buffalo. 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 into for flights to Buffalo from Chicago O'Hare Intl?

    Buffalo (BUF) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to Buffalo. You should not have trouble finding flights to Buffalo from Chicago O'Hare Intl; the airport handles an average of 15 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Buffalo airport from Chicago O'Hare Intl. It is only a 8.3 mi journey from Buffalo (BUF) to Buffalo’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Buffalo?

    For as low as $171, JetBlue can have you in Buffalo from Chicago O'Hare Intl Airport in 6h 58m. There are 472 mi between Chicago O'Hare Intl Airport and Buffalo.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Buffalo round-trip?

    According to our current data, Frontier ($132), American Airlines ($177), and United Airlines ($197) offers the cheapest pricing from Chicago O'Hare Intl Airport to Buffalo. Frontier is currently priced 59% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Buffalo?

    Consider Envoy Air (79%), Japan Airlines (77%) or Alaska Airlines (76%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Buffalo.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Buffalo?

    While on average a flight from Chicago O'Hare Intl Airport to Buffalo is generally $288, our data shows the cheapest flight currently is $63. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $167 for that flight.

  • Can I find deals for flights from O'Hare Intl to Buffalo that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Buffalo?

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

  • Can I find deals for business class flights from O'Hare Intl to Buffalo?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Buffalo 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 Chicago O'Hare Intl Airport to Buffalo?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Buffalo (average of $98). Flying from Chicago O'Hare Intl Airport to Buffalo in March is currently the most expensive (average of $238). 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

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Batavia
Williamsville
Orchard Park
Eden
Amherst
West Seneca

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Alternative routes for O'Hare Intl to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from O'Hare Intl to Buffalo

Discover the top 3 airlines that operate flights from O'Hare Intl to Buffalo. 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 2,558,603 searches. Data last updated December 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$198FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$177Average$304FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$197Average$364FlexibilityNo cancel feeOn-time69%

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