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O'Hare Intl

$91+ Cheap flights from Buffalo (BUF) to O'Hare Intl (ORD)

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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ORD
mai 4 — mai 111
dim. 5/4
dim. 5/11
1 adult, Economy
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Cheapflights Tip: The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or January, booked 71 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Buffalo to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to O'Hare Intl (ORD). 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 avril 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$208
(JetBlue)

One-way from

$91
(Frontier)

Popular in

February

Cheapest in

September

Average price

$349

Good round-trip deal

$339 or less

Good one-way deal

$185 or less
Provider with most accurate pricing for Buffalo-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Chicago O'Hare Intl flights.
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From Buffalo to Chicago O'Hare Intl
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One-way flight from Buffalo to Chicago O'Hare Intl
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Highest demand for flights based on searches. 10% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Price to beat on a round-trip flight from Buffalo to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Buffalo to Chicago O'Hare Intl.
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Find flight deals from Buffalo to O'Hare Intl

Cheapest flights from Buffalo to O'Hare Intl
Explore the most affordable flight options available from Buffalo to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on avril 29, 2025.

This JetBlue deal was found by Cheapflights users on 4/29. 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.
mar. 7/18:00 amBUF - ORD
1 stop8h 53mJetBlue
lun. 7/76:00 amORD - BUF
1 stop4h 42mJetBlue
Deal found 4/29$230
This Frontier deal was found by Cheapflights users on 4/29. 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.
sam. 5/247:10 pmBUF - ORD
1 stop6h 07mFrontier
lun. 5/266:00 amORD - BUF
1 stop9h 29mFrontier
Deal found 4/29$240
This American Airlines deal was found by Cheapflights users on 4/29. 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.
mar. 5/1312:22 pmBUF - ORD
1 stop8h 18mAmerican Airlines
mar. 5/206:17 amORD - BUF
1 stop7h 38mAmerican Airlines
Deal found 4/29$243
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mer. 5/287:00 amBUF - ORD
Nonstop1h 56mUnited Airlines
sam. 5/316:20 pmORD - BUF
Nonstop1h 41mUnited Airlines
Deal found 4/29$249
This Delta deal was found by Cheapflights users on 4/29. 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.
sam. 6/286:30 amBUF - ORD
1 stop4h 33mDelta
mer. 7/911:05 amORD - BUF
1 stop6h 30mDelta
Deal found 4/29$269
This Southwest deal was found by Cheapflights users on 4/29. 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.
mer. 5/285:55 amBUF - ORD
2 stops7h 50mSouthwest
mer. 6/41:50 pmORD - BUF
1 stop4h 05mSouthwest
Deal found 4/29$274
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 5/2911:41 amBUF - ORD
2 stops12h 48mMultiple Airlines
sam. 5/315:51 amORD - BUF
3 stops29h 05mMultiple Airlines
Deal found 4/29$481

Cheapflights Fare Finder

Customize your flight search to find flights from Buffalo to O'Hare Intl 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 avril 29, 2025.
Use the filters below to find and compare flights from Buffalo to Chicago O'Hare Intl Airport that are best for you.

Fly from

Buffalo

Fly to

O'Hare Intl

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mar. 7/1

8:00 am-3:53 pm

1 stop8h 53m

Chicago O'Hare Intl

mar. 7/8

11:35 am-7:30 pm

1 stop6h 55m

$230

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sam. 5/24

7:10 pm-12:17 am

1 stop6h 07m

Chicago O'Hare Intl

lun. 5/26

6:00 am-4:29 pm

1 stop9h 29m

$240

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mar. 5/13

12:22 pm-7:40 pm

1 stop8h 18m

Chicago O'Hare Intl

mar. 5/20

6:17 am-2:55 pm

1 stop7h 38m

$243

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mer. 5/28

7:00 am-7:56 am

Nonstop1h 56m

Chicago O'Hare Intl

sam. 5/31

6:20 pm-9:01 pm

Nonstop1h 41m

$249

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sam. 6/28

9:01 am-12:55 pm

1 stop4h 54m

Chicago O'Hare Intl

mar. 7/8

9:45 am-3:58 pm

1 stop5h 13m

$269

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mer. 5/28

5:55 am-12:45 pm

2 stops7h 50m

Chicago O'Hare Intl

mer. 6/4

1:50 pm-6:55 pm

1 stop4h 05m

$274

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

jeu. 5/29

11:41 am-11:29 pm

2 stops12h 48m

Chicago O'Hare Intl

sam. 5/31

5:51 am-11:56 am

3 stops29h 05m

$481

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

mer. 5/28

3:05 pm-9:54 pm

1 stop7h 49m

$93

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

sam. 5/17

11:38 am-11:32 pm

1 stop12h 54m

$96

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

jeu. 6/12

11:47 am-7:11 pm

1 stop8h 24m

$123

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 15 results
1
2

Compare providers for flights from Buffalo to O'Hare Intl

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 Buffalo to O'Hare Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*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 Buffalo-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-Chicago O'Hare Intl Airport 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 Buffalo-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for Buffalo to Chicago O'Hare Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Buffalo to Chicago O'Hare Intl Airport trip
Airlines
Qatar Airways

Qatar Airways allows only one carry-on item in economy, so plan your packing carefully.


Qatar Airways offers extra legroom seats for a fee, typically in emergency exit rows and bulkhead seats.

Read more about Qatar Airwaysby Brandon Schultz
United Airlines

United's Economy Plus offers extra legroom and is available for no extra fee for MileagePlus Premier members.


United's Basic Economy allows only a personal item, no carry-on bags, unless exceptions apply.

Read more about United Airlinesby Harriet Baskas
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on Qatar Airways

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to O'Hare Intl. Price data was last updated on April 25, 2025.

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buffalo to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of $245). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 BUF to ORD?

Find hourly flight availability from Buffalo to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated avril 29, 2025.

It’s optimal to fly from Buffalo to Chicago O'Hare Intl Airport in the morning. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight at noon.

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

Explore weekly flight availability from Buffalo to O'Hare Intl. 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 avril 29, 2025.

The most flights from BUF to ORD are scheduled on a Wednesday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated avril 29, 2025.
To help decide which airline to fly from Buffalo to Chicago, see what other customers have to say about Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

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

    For a flight from Buffalo to Chicago O'Hare Intl, you will be flying from Buffalo. Buffalo (BUF) is just 8.3 mi from the center of the city. Buffalo is the only Buffalo airport and it handles 19 outbound flights to Chicago O'Hare Intl per day. 3 airlines have flights to Chicago O'Hare Intl from Buffalo on a regular basis.

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

    JetBlue, at $208, was found to be the cheapest airline from Buffalo to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Frontier and United Airlines. JetBlue is currently priced 39% below the average price you’ll pay for this route.

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

    $91 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on JetBlue and Sun Country Air, with prices starting from $93 and $123, respectively.

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

    Before booking your flight to Chicago O'Hare Intl Airport from Buffalo, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (100%), Copa Airlines (100%), Republic Airways( 94%).

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

    The cheapest flight price from Buffalo to Chicago O'Hare Intl Airport is $125. On average you can expect to pay $684. The most popular route, (Buffalo - Chicago O'Hare Intl), can usually be booked for $193.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of $245). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
Schaumburg
Hoffman Estates
Rosemont
Beloit
Racine
Skokie
Naperville
Elgin
Tinley Park
Kenosha
Rockford
Arlington Heights
Orland Park
Joliet
Merrillville
Northbrook
Glenview
Des Plaines
Lake Geneva
Waukegan

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Alternative routes for Buffalo to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to O'Hare Intl flights
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Ithaca to Midway flights
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Stewart to Rockford flights
Binghamton to O'Hare Intl flights
Binghamton to Midway flights
Elmira to Midway flights
Rutland to O'Hare Intl flights
Watertown to O'Hare Intl flights
Plattsburgh to O'Hare Intl flights
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Stewart to Midway flights
Niagara Falls to O'Hare Intl flights

Top 3 airlines flying from Buffalo to O'Hare Intl

Discover the top 3 airlines that operate flights from Buffalo to O'Hare Intl. 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 avril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$184FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$151Average$374FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$180Average$335FlexibilityNo cancel feeOn-time71%

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