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$76+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
3月 23 — 3月 301
週一 3/23
週一 3/30
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Buffalo are usually found in January or September, booked 83 days in advance, depart on a Tuesday or Monday and return on a Thursday

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 2月 21, 2026.

This Frontier deal was found by Cheapflights users on 2/18. 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.
週四 5/75:01 am
ORD
-
BUF
1 stop6h 12m
Frontier
週六 5/91:08 pm
BUF
-
ORD
1 stop10h 31m
Frontier
Deal found 2/18$160
This Frontier deal was found by Cheapflights users on 2/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週六 4/185:50 am
ORD
-
BUF
1 stop5h 23m
Frontier
週日 4/198:18 pm
BUF
-
ORD
1 stop27h 48m
Frontier
Deal found 2/21$161
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
週二 4/281:40 pm
ORD
-
BUF
1 stop22h 02m
Multiple Airlines
週四 4/301:08 pm
BUF
-
ORD
1 stop6h 46m
Multiple Airlines
Deal found 2/20$180
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
週三 3/117:18 pm
ORD
-
BUF
1 stop15h 47m
Frontier
週一 3/1611:59 am
BUF
-
ORD
1 stop21h 24m
Frontier
Deal found 2/17$186
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
週五 5/81:40 pm
ORD
-
BUF
1 stop21h 33m
Multiple Airlines
週日 5/101:08 pm
BUF
-
ORD
1 stop6h 46m
Multiple Airlines
Deal found 2/20$188
This Expedia deal was found by Cheapflights users on 2/17. 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.
週二 3/38:30 am
ORD
-
BUF
1 stop8h 51m
Frontier
週一 3/1611:59 am
BUF
-
ORD
1 stop11h 40m
Frontier
Deal found 2/17$189
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
週一 4/64:34 pm
ORD
-
BUF
1 stop18h 43m
Multiple Airlines
週一 4/133:00 pm
BUF
-
ORD
1 stop30h 03m
Multiple Airlines
Deal found 2/20$190
This Frontier deal was found by Cheapflights users on 2/20. 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.
週一 4/65:15 am
ORD
-
BUF
1 stop6h 02m
Frontier
週一 4/133:00 pm
BUF
-
ORD
1 stop9h 36m
Frontier
Deal found 2/20$194
This Frontier deal was found by Cheapflights users on 2/18. 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.
週四 2/265:05 am
ORD
-
BUF
1 stop6h 49m
Frontier
週一 3/21:48 pm
BUF
-
ORD
1 stop9h 51m
Frontier
Deal found 2/18$202
This Kiwi.com deal was found by Cheapflights users on 2/20. 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.
週五 3/135:01 am
ORD
-
BUF
1 stop6h 04m
Frontier
週日 3/1512:45 pm
BUF
-
ORD
1 stop23h 07m
Frontier
Deal found 2/20$203

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 2月 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$160
(Frontier)

One-way from

$76
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$329

Good round-trip deal

$295 or less

Good one-way deal

$212 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. 6% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 2月 21, 2026.
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

週二 3/3

8:30 am-6:21 pm

1 stop8h 51m

Buffalo

週一 3/16

11:59 am-10:39 pm

1 stop11h 40m

$189

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週二 3/24

12:20 pm-8:53 pm

1 stop7h 33m

Buffalo

週一 3/30

9:25 pm-11:38 pm

1 stop27h 13m

$205

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週五 5/8

5:01 am-12:13 pm

1 stop6h 12m

Buffalo

週一 5/11

1:08 pm-10:39 pm

1 stop10h 31m

$235

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週二 3/3

8:30 am-6:21 pm

1 stop8h 51m

Buffalo

週四 3/5

1:39 pm-11:47 pm

2 stops11h 08m

$238

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週二 3/3

8:16 pm-12:54 pm

2 stops39h 38m

Buffalo

週一 3/16

11:59 am-8:23 am

1 stop21h 24m

$238

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週四 4/9

7:05 am-4:32 pm

1 stop8h 27m

Buffalo

週三 4/15

3:01 pm-4:07 pm

Nonstop2h 06m

$250

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週五 3/13

5:01 am-12:05 pm

1 stop6h 04m

Buffalo

週日 3/15

12:45 pm-10:39 pm

1 stop10h 54m

$250

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週五 4/3

5:15 am-12:17 pm

1 stop6h 02m

Buffalo

週五 4/10

4:54 pm-1:12 am

1 stop9h 18m

$251

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週三 3/25

6:05 pm-8:46 pm

Nonstop1h 41m

Buffalo

週六 3/28

1:52 pm-3:01 pm

Nonstop2h 09m

$257

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

週三 4/29

7:22 am-10:12 am

Nonstop1h 50m

Buffalo

週五 5/1

8:40 pm-9:42 pm

Nonstop2h 02m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 24 results
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2
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Buffalo flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 February 20, 2026.

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 $247). 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 2月 21, 2026.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Buffalo in the evening. Doing so could potentially save you 9% 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 February 17, 2026.

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 2月 21, 2026.
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
9,341 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,341 reviews
United Airlines
7.4
Good
9,341 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,338 reviews
United Airlines
7.4
Good
9,341 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Frontier
5.7
Fair
3,045 reviews
United Airlines
7.4
Good
9,341 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 20 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 $189, Frontier can have you in Buffalo from Chicago O'Hare Intl Airport in 8h 51m. 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 57% 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 (90%), Iberia (79%) or SkyWest Airlines (78%) 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 $329, our data shows the cheapest flight currently is $101. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $180 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 $247). 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

Browse thousands of different options on Cheapflights for your next trip

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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 2月 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$198FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$177Average$299FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$197Average$352FlexibilityNo cancel feeOn-time69%

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