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Cheap flights from Buffalo to Chicago O'Hare Intl Airport from C$ 134

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — ORD
26 Feb — 5 Mar1
1 adult

The best prices from Buffalo to Chicago O'Hare Intl are usually found in September or August, booked 84 days in advance, depart on a Friday or Wednesday and return on a Monday

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 21 February 2025.

Round-trip from

C$ 391

One-way from

C$ 134

Popular in

February

Cheapest in

September

Average price

C$ 584

Good round-trip deal

C$ 571 or less

Good one-way deal

C$ 296 or less
Sun Country Air
  • Sun Country Air
  • 15/8-17/8
  • 2 total stops
  • 22h 05m total
  • Buffalo to Chicago
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JetBlue
  • JetBlue
  • 26/4
  • 1 total stop
  • 6h 22m total
  • Buffalo to Chicago
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 16 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Buffalo to Chicago O'Hare Intl.
Search Deals
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 21 February 2025.

Fri 15/811:40 a.m.BUF - ORD
1 stop8h 31mSun Country Air
Sun 17/88:10 p.m.ORD - BUF
1 stop13h 34mSun Country Air
Deal found 20/2C$ 391
Fri 16/55:56 p.m.BUF - ORD
Nonstop1h 56mAmerican Airlines
Mon 19/57:00 a.m.ORD - BUF
Nonstop1h 36mAmerican Airlines
Deal found 20/2C$ 415
Tue 28/1010:15 a.m.BUF - ORD
1 stop13h 31mDelta
Wed 5/117:00 a.m.ORD - BUF
1 stop10h 23mDelta
Deal found 20/2C$ 419
Sat 8/311:37 a.m.BUF - ORD
1 stop5h 28mJetBlue
Wed 12/311:44 a.m.ORD - BUF
1 stop5h 24mJetBlue
Deal found 20/2C$ 425
Wed 23/45:55 a.m.BUF - ORD
2 stops7h 50mSouthwest
Mon 28/41:50 p.m.ORD - BUF
1 stop4h 25mSouthwest
Deal found 20/2C$ 429
Thu 19/67:00 a.m.BUF - ORD
Nonstop1h 56mUnited Airlines
Sun 6/77:10 a.m.ORD - BUF
Nonstop1h 39mUnited Airlines
Deal found 19/2C$ 497
Thu 17/79:51 p.m.BUF - ORD
1 stop26h 47mFrontier
Mon 21/74:21 p.m.ORD - BUF
1 stop15h 25mFrontier
Deal found 20/2C$ 1,023

Find flights from Buffalo to O'Hare Intl within your budget

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 629,999 searches. Data last updated 21 February 2025.

Fly from

Buffalo

Fly to

O'Hare Intl

Route

Depart

Return

Price

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 15/8

11:40 a.m.-7:11 p.m.

1 stop8h 31m

Chicago O'Hare Intl

Sun 17/8

8:10 p.m.-10:44 a.m.

1 stop13h 34m

C$ 391

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 16/5

5:56 p.m.-6:52 p.m.

Nonstop1h 56m

Chicago O'Hare Intl

Mon 19/5

7:00 a.m.-9:36 a.m.

Nonstop1h 36m

C$ 415

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Wed 23/4

5:55 a.m.-12:45 p.m.

2 stops7h 50m

Chicago O'Hare Intl

Mon 28/4

1:50 p.m.-7:15 p.m.

1 stop4h 25m

C$ 429

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Fri 7/3

2:25 p.m.-6:41 p.m.

1 stop5h 16m

Chicago O'Hare Intl

Mon 10/3

11:30 a.m.-5:39 p.m.

1 stop5h 09m

C$ 443

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 24/5

3:05 p.m.-10:20 p.m.

1 stop8h 15m

Chicago O'Hare Intl

Sun 25/5

6:20 a.m.-2:10 p.m.

1 stop6h 50m

C$ 447

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 19/6

7:00 a.m.-7:56 a.m.

Nonstop1h 56m

Chicago O'Hare Intl

Sun 6/7

7:10 a.m.-9:49 a.m.

Nonstop1h 39m

C$ 497

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Thu 17/7

9:51 p.m.-11:38 p.m.

1 stop26h 47m

Chicago O'Hare Intl

Mon 21/7

4:21 p.m.-8:46 a.m.

1 stop15h 25m

C$ 1,023

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 26/4

7:05 a.m.-12:27 p.m.

1 stop6h 22m

C$ 134

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sat 19/4

5:45 a.m.-4:01 p.m.

1 stop11h 16m

C$ 188

BuffaloChicago

BUF - ORD

BUFORD

Buffalo

Sun 17/8

11:40 a.m.-7:11 p.m.

1 stop8h 31m

C$ 196

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 12 results
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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.

Travel insights for flights from Buffalo to O'Hare Intl

Get recent, data-driven insights about flights from Buffalo to O'Hare Intl including ideal travel times, pricing trends, and more.

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 14 February 2025.

To ensure you get the cheapest price possible for a flight from Buffalo to Chicago O'Hare Intl Airport, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of C$ 261). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 355). 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 21 February 2025.

It’s typically best to fly out from Buffalo to Chicago O'Hare Intl Airport in the morning. Doing so could potentially save you 22% on the flight price compared to flying at noon, which is usually more expensive.

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 21 February 2025.

The most flights from BUF to ORD are scheduled on a Thursday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 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 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 21 February 2025.
Southwest
8.1
Very good
4,411 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews
Check prices

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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?

    Buffalo (BUF), located 13.4 km from the city centre, is the airport you fly out of when you book flights from Buffalo to Chicago O'Hare Intl. 3 airlines have flights from Buffalo to Chicago O'Hare Intl on a regular basis. Booking flights from Buffalo to Chicago O'Hare Intl should not be difficult; the airport handles an average of 20 outbound flights to Chicago O'Hare Intl per day.

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

    Flying on Sun Country Air is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at C$ 391. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at C$ 415 and C$ 429, respectively. Users have found that Sun Country Air is 17% cheaper than the other options available to this destination.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as C$ 134. Users have also found prices from C$ 188 and C$ 196 on Delta and Sun Country Air, respectively.

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

    The top 3 most reliable airlines when flying from Buffalo to Chicago O'Hare Intl Airport are Avianca (88%), Copa Airlines (85%) and Royal Jordanian (84%).

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

    Looking for the cheapest flight from Buffalo to Chicago O'Hare Intl Airport? While on average our users pay C$ 674, our data indicates the cheapest price to be C$ 239. The most popular route (Buffalo - Chicago O'Hare Intl), is priced around C$ 369.

  • 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, January is the cheapest month in which you can book a flight from Buffalo to Chicago O'Hare Intl Airport (average of C$ 261). Flying from Buffalo to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 355). 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.

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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 629,999 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 138AverageC$ 236FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapestC$ 280AverageC$ 424FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 311AverageC$ 509FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from Buffalo to O'Hare Intl?

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Why should you use Cheapflights to find cheap flight tickets from Buffalo to O'Hare Intl?

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Can Cheapflights find flights from Buffalo to O'Hare Intl with no change fees?

Certainly. Search results for flights to O'Hare Intl from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buffalo to O'Hare Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to O'Hare Intl from Buffalo today and book when prices fit your budget.

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