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$59+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 August, booked 70 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap 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 September 11, 2025.

Round-trip from

$170
(Kiwi.com)

One-way from

$59
(United Airlines)

Popular in

July

Cheapest in

September

Average price

$237

Good round-trip deal

$217 or less

Good one-way deal

$181 or less
From Chicago O'Hare Intl to Buffalo
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One-way flight from Chicago O'Hare Intl to Buffalo
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Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Buffalo.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Buffalo.
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Find 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 September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/211:50 pmORD - BUF
1 stop7h 25mSouthwest
Wed 10/225:30 amBUF - ORD
1 stop7h 20mSouthwest
Deal found 9/10$175
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 10/114:56 pmORD - BUF
1 stop4h 56mDelta
Sun 10/1212:49 pmBUF - ORD
1 stop6h 25mDelta
Deal found 9/11$177
This Frontier deal was found by Cheapflights users on 9/9. 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.
Fri 10/176:50 amORD - BUF
1 stop8h 39mFrontier
Mon 10/205:24 pmBUF - ORD
1 stop8h 35mFrontier
Deal found 9/9$178
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Fri 9/198:49 pmORD - BUF
1 stop20h 25mFrontier
Mon 9/224:58 pmBUF - ORD
1 stop8h 01mFrontier
Deal found 9/10$182
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 9/278:00 amORD - BUF
1 stop9h 14mFrontier
Fri 10/34:57 pmBUF - ORD
1 stop8h 02mFrontier
Deal found 9/11$184
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 10/218:01 amORD - BUF
Nonstop1h 41mAmerican Airlines
Wed 10/226:07 amBUF - ORD
1 stop8h 45mAmerican Airlines
Deal found 9/11$185
This Frontier deal was found by Cheapflights users on 9/10. 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.
Thu 9/1811:36 amORD - BUF
1 stop6h 10mFrontier
Mon 9/224:58 pmBUF - ORD
1 stop8h 01mFrontier
Deal found 9/10$186
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/72:09 pmORD - BUF
Nonstop1h 44mUnited Airlines
Fri 10/1010:50 amBUF - ORD
Nonstop1h 56mUnited Airlines
Deal found 9/10$193
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/38:33 amORD - BUF
Nonstop1h 33mAmerican Airlines
Sat 10/47:35 amBUF - ORD
Nonstop1h 55mAmerican Airlines
Deal found 9/10$194
This Frontier deal was found by Cheapflights users on 9/10. 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 10/48:00 amORD - BUF
1 stop9h 14mFrontier
Sun 10/57:41 pmBUF - ORD
2 stops15h 50mFrontier
Deal found 9/10$195

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 September 11, 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

Tue 10/21

1:50 pm-10:15 pm

1 stop7h 25m

Buffalo

Wed 10/22

5:30 am-11:50 am

1 stop7h 20m

$175

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 10/21

7:10 am-9:53 am

Nonstop1h 43m

Buffalo

Wed 10/22

7:07 am-8:05 am

Nonstop1h 58m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 10/21

8:55 am-3:16 pm

1 stop5h 21m

Buffalo

Wed 10/22

12:49 pm-4:11 pm

1 stop4h 22m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/29

6:00 am-1:47 pm

1 stop6h 47m

Buffalo

Fri 10/31

7:30 pm-11:59 pm

1 stop5h 29m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/8

7:10 am-9:53 am

Nonstop1h 43m

Buffalo

Sat 10/11

1:57 pm-2:55 pm

Nonstop1h 58m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/8

10:35 am-5:02 pm

1 stop5h 27m

Buffalo

Wed 10/15

3:56 pm-8:23 pm

1 stop5h 27m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/29

7:10 am-12:09 pm

1 stop3h 59m

Buffalo

Thu 10/30

6:20 am-9:43 am

1 stop4h 23m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 10/11

4:56 pm-10:52 pm

1 stop4h 56m

Buffalo

Sun 10/12

12:49 pm-4:11 pm

1 stop4h 22m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/1

10:30 am-4:52 pm

1 stop5h 22m

Buffalo

Sat 10/4

6:30 pm-9:34 pm

1 stop4h 04m

$177

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 10/8

9:30 am-5:02 pm

1 stop6h 32m

Buffalo

Sun 10/12

12:49 pm-6:14 pm

1 stop6h 25m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 22 results
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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 August 29, 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 69 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 $256). Flying from Chicago O'Hare Intl Airport to Buffalo in December is currently the most expensive (average of $337). 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 September 11, 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 11% 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 September 7, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Buffalo flight should consider departing on Saturday evenings 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.

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 September 11, 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
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Frontier
5.8
Fair
3,177 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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 25 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 $177, Southwest can have you in Buffalo from Chicago O'Hare Intl Airport in 1h 43m. There are 472 mi between Chicago O'Hare Intl Airport and Buffalo. This flight may include one or multiple stops.

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

    According to our current data, Frontier ($128), American Airlines ($177), and United Airlines ($198) offers the cheapest pricing from Chicago O'Hare Intl Airport to Buffalo. Frontier is currently priced 61% 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 Republic Airways (96%), GoJet (85%) or United Airlines (83%) 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 $289, our data shows the cheapest flight currently is $107. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $117 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 $256). Flying from Chicago O'Hare Intl Airport to Buffalo in December is currently the most expensive (average of $337). 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
Orchard Park
Batavia
Williamsville
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$200FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$177Average$314FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$376FlexibilityNo cancel feeOn-time69%

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