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$53+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 May, booked 69 days in advance, depart on a Monday or Wednesday 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 July 3, 2025.

Round-trip from

$203
(American Airlines)

One-way from

$53
(Priceline)

Popular in

July

Cheapest in

September

Average price

$387

Good round-trip deal

$290 or less

Good one-way deal

$108 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. 5% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/3. 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.
Mon 8/47:25 pmORD - BUF
Nonstop1h 43mAmerican Airlines
Tue 8/57:30 pmBUF - ORD
1 stop5h 27mAmerican Airlines
Deal found 7/3$203
This JetBlue deal was found by Cheapflights users on 7/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1612:20 pmORD - BUF
1 stop5h 25mJetBlue
Thu 8/215:35 amBUF - ORD
1 stop6h 12mJetBlue
Deal found 7/2$210
This Frontier deal was found by Cheapflights users on 7/3. 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 8/711:15 amORD - BUF
1 stop8h 01mFrontier
Mon 8/118:50 amBUF - ORD
1 stop26h 24mFrontier
Deal found 7/3$212
This Southwest deal was found by Cheapflights users on 7/1. 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.
Wed 8/271:50 pmORD - BUF
1 stop7h 20mSouthwest
Thu 8/287:15 amBUF - ORD
1 stop11h 40mSouthwest
Deal found 7/1$218
This United Airlines deal was found by Cheapflights users on 7/3. 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 8/162:10 pmORD - BUF
Nonstop1h 45mUnited Airlines
Wed 8/207:05 amBUF - ORD
Nonstop1h 58mUnited Airlines
Deal found 7/3$228
This Delta deal was found by Cheapflights users on 7/1. 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.
Sun 8/107:01 pmORD - BUF
1 stop3h 43mDelta
Tue 8/126:20 amBUF - ORD
1 stop5h 00mDelta
Deal found 7/1$236
This Sun Country Air deal was found by Cheapflights users on 7/2. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/78:52 pmORD - BUF
1 stop12h 46mSun Country Air
Mon 8/1111:40 amBUF - ORD
1 stop6h 47mSun Country Air
Deal found 7/2$245

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 July 3, 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

Mon 8/4

7:25 pm-10:08 pm

Nonstop1h 43m

Buffalo

Tue 8/5

7:30 pm-11:57 pm

1 stop5h 27m

$203

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 8/16

12:20 pm-6:45 pm

1 stop5h 25m

Buffalo

Thu 8/21

5:35 am-10:47 am

1 stop6h 12m

$210

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 8/7

11:15 am-8:16 pm

1 stop8h 01m

Buffalo

Mon 8/11

8:50 am-10:14 am

1 stop26h 24m

$212

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 8/27

1:50 pm-10:10 pm

1 stop7h 20m

Buffalo

Thu 8/28

7:15 am-5:55 pm

1 stop11h 40m

$218

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 8/16

2:10 pm-4:55 pm

Nonstop1h 45m

Buffalo

Wed 8/20

7:05 am-8:03 am

Nonstop1h 58m

$228

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 8/10

7:01 pm-11:44 pm

1 stop3h 43m

Buffalo

Tue 8/12

6:20 am-10:20 am

1 stop5h 00m

$236

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 8/7

8:52 pm-10:38 am

1 stop12h 46m

Buffalo

Mon 8/11

11:40 am-5:27 pm

1 stop6h 47m

$245

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sun 8/3

5:01 am-12:16 pm

1 stop6h 15m

$53

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 8/26

7:25 pm-10:02 pm

Nonstop1h 37m

$69

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 8/6

1:50 pm-10:10 pm

1 stop7h 20m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 14 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 June 27, 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 July 3, 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Buffalo in the afternoon. Doing so could potentially save you 5% on the flight price compared to flying in the evening, 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 June 29, 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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago O'Hare Intl Airport to Buffalo

Explore weekly flight availability from O'Hare Intl to Buffalo. 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 July 3, 2025.

The most flights from ORD to BUF are scheduled on a Thursday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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 July 3, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines 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.
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,270 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,970 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,845 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,916 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,270 reviews

Crew

8.6

Food

7.0

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

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

    According to our current data, American Airlines ($203), United Airlines ($206), and JetBlue ($207) offers the cheapest pricing from Chicago O'Hare Intl Airport to Buffalo. American Airlines is currently priced 39% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Buffalo one-way?

    One-way options have recently been found by users for as low as $53 on Frontier. Other airlines that offer cheap prices include United Airlines from $69 and Southwest from $79 one-way.

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

    Consider Envoy Air (87%), Japan Airlines (85%) or Republic Airways (84%) 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 $278, our data shows the cheapest flight currently is $99. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $137 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Williamsville
Orchard Park
Batavia
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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Midway to Rochester flights
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O'Hare Intl to Rutland flights
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O'Hare Intl to Elmira flights
Midway to Stewart flights
Midway to Binghamton flights
O'Hare Intl to Niagara Falls flights
Midway to Ithaca flights
O'Hare Intl to Saranac Lake flights
O'Hare Intl to Watertown flights
O'Hare Intl to Plattsburgh flights

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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$121Average$190FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$160Average$325FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$211Average$384FlexibilityNo cancel feeOn-time69%

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