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$82+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUF
Jun 21 — Jun 281
Sun 6/21
Sun 6/28
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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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 Wednesday

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 May 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:50 pm
ORD
-
BUF
1 stop23h 03m
Frontier
Mon 8/172:50 pm
BUF
-
ORD
1 stop18h 13m
Frontier
Deal found 5/18$158
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:50 pm
ORD
-
BUF
1 stop23h 03m
Frontier
Sun 8/1611:35 am
BUF
-
ORD
1 stop21h 18m
Frontier
Deal found 5/18$172
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:05 am
ORD
-
BUF
1 stop5h 48m
Frontier
Fri 8/142:50 pm
BUF
-
ORD
1 stop18h 03m
Frontier
Deal found 5/18$198
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/106:55 am
ORD
-
BUF
1 stop26h 45m
Frontier
Mon 6/152:50 pm
BUF
-
ORD
1 stop18h 13m
Frontier
Deal found 5/19$203
This Frontier deal was found by Cheapflights users on 5/18. 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.
Wed 7/16:55 am
ORD
-
BUF
1 stop6h 00m
Frontier
Sat 7/412:29 pm
BUF
-
ORD
1 stop8h 21m
Frontier
Deal found 5/18$204
This Frontier deal was found by Cheapflights users on 5/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:55 am
ORD
-
BUF
1 stop6h 00m
Frontier
Mon 6/292:50 pm
BUF
-
ORD
1 stop6h 00m
Frontier
Deal found 5/17$209
This Frontier deal was found by Cheapflights users on 5/18. 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.
Wed 7/16:55 am
ORD
-
BUF
1 stop6h 00m
Frontier
Sun 7/59:02 pm
BUF
-
ORD
1 stop13h 09m
Frontier
Deal found 5/18$210
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:50 pm
ORD
-
BUF
1 stop23h 03m
Frontier
Mon 8/172:50 pm
BUF
-
ORD
1 stop18h 13m
Frontier
Deal found 5/18$211
This Kiwi.com deal was found by Cheapflights users on 5/20. 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.
Wed 6/246:55 am
ORD
-
BUF
1 stop6h 00m
Frontier
Thu 7/211:35 am
BUF
-
ORD
1 stop21h 28m
Frontier
Deal found 5/20$215
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:05 am
ORD
-
BUF
1 stop5h 48m
Frontier
Mon 8/172:50 pm
BUF
-
ORD
1 stop18h 13m
Frontier
Deal found 5/18$218
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Sat 6/136:55 am
ORD
-
BUF
1 stop26h 45m
Frontier
Mon 6/152:50 pm
BUF
-
ORD
1 stop18h 13m
Frontier
Deal found 5/17$219
This Frontier deal was found by Cheapflights users on 5/18. 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.
Mon 6/296:55 am
ORD
-
BUF
1 stop6h 00m
Frontier
Sat 7/412:29 pm
BUF
-
ORD
1 stop8h 21m
Frontier
Deal found 5/18$223

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 May 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$158
(Kiwi.com)

One-way from

$82
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$372

Good round-trip deal

$342 or less

Good one-way deal

$174 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Buffalo flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Buffalo flights.
Search Deals
From Chicago O'Hare Intl to Buffalo
Search Deals
One-way flight from Chicago O'Hare Intl to Buffalo
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 22, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 7/14

7:17 pm-11:58 pm

1 stop3h 41m

Buffalo

Wed 7/22

12:03 pm-4:23 pm

1 stop5h 20m

$308

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/24

7:17 pm-12:03 am

1 stop3h 46m

Buffalo

Tue 6/30

6:29 am-10:50 am

1 stop5h 21m

$308

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 7/14

8:52 am-3:13 pm

1 stop5h 21m

Buffalo

Tue 7/21

8:55 am-1:03 pm

1 stop5h 08m

$308
Quickest round-trip

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/24

6:17 pm-9:03 pm

Nonstop1h 46m

Buffalo

Tue 6/30

6:04 pm-7:03 pm

Nonstop1h 59m

$327

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Sat 6/13

6:17 pm-9:03 pm

Nonstop1h 46m

Buffalo

Wed 6/17

6:04 pm-7:03 pm

Nonstop1h 59m

$338

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Fri 6/19

6:17 pm-9:03 pm

Nonstop1h 46m

Buffalo

Sun 6/21

6:04 pm-7:03 pm

Nonstop1h 59m

$369

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 6/16

6:00 am-2:55 pm

1 stop7h 55m

Buffalo

Tue 6/23

3:50 pm-9:29 pm

1 stop6h 39m

$373

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Thu 6/25

6:17 pm-9:03 pm

Nonstop1h 46m

Buffalo

Wed 7/1

6:04 pm-7:03 pm

Nonstop1h 59m

$373

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Wed 6/24

6:17 pm-9:03 pm

Nonstop1h 46m

Buffalo

Mon 6/29

6:04 pm-7:03 pm

Nonstop1h 59m

$373

ChicagoBuffalo

ORD - BUF

ORDBUF

Chicago O'Hare Intl

Tue 6/23

1:55 pm-4:41 pm

Nonstop1h 46m

Buffalo

Mon 6/29

6:04 pm-7:03 pm

Nonstop1h 59m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 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?

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 81 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 $230). Flying from Chicago O'Hare Intl Airport to Buffalo in March is currently the most expensive (average of $465). 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 May 22, 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 18% on the flight price compared to flying in the afternoon, 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 May 16, 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. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Buffalo?

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 May 22, 2026.
See what other customers who have flown with United Airlines,JetBlue, andAmerican 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.
United Airlines
7.4
Good
9,751 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,751 reviews
United Airlines
7.4
Good
9,751 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
JetBlue
7.2
Good
2,981 reviews
United Airlines
7.4
Good
9,751 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,642 reviews
United Airlines
7.4
Good
9,751 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
Frontier
5.7
Fair
2,945 reviews
United Airlines
7.4
Good
9,751 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 22 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 4 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 $327, Delta can have you in Buffalo from Chicago O'Hare Intl Airport in 1h 46m. 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, JetBlue ($98), Frontier ($132), and American Airlines ($177) offers the cheapest pricing from Chicago O'Hare Intl Airport to Buffalo. JetBlue is currently priced 70% 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 $95 on Frontier. Other airlines that offer cheap prices include American Airlines from $118 and United Airlines from $121 one-way.

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

    Consider Avianca (90%), Japan Airlines (79%) or GoJet (72%) 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 $118. When looking at the most popular route, (Chicago O'Hare Intl - Buffalo), you can expect to pay $257 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 $230). Flying from Chicago O'Hare Intl Airport to Buffalo in March is currently the most expensive (average of $465). 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
Amherst
Batavia
Williamsville
Orchard Park
Eden

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from O'Hare Intl to Buffalo

Discover the top 4 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 May 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$98Average$254FlexibilityNo cancel feeOn-time62%
FrontierCheapest$132Average$190FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$177Average$325FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$206Average$361FlexibilityNo cancel feeOn-time69%

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