Chicago O'Hare International Airport
Chicago, United StatesORD / KORD
International hub · 259 direct destinations · 8 runways · longest runway 12,999 ft
52 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Chicago → Buffalo
ORD
ChicagoChicago O'Hare International Airport
ChicagoChicago O'Hare International AirportBUFBuffaloBuffalo Niagara International Airport
BuffaloBuffalo Niagara International Airport- Distance
- 472 mi
- Estimated flight time
- ~1h 25m
Buffalo is currently 1 hour ahead of Chicago.
Observed nonstop
How often does this route fly?
Frequency
Several times a day
On average around 7 flights a day, observed from October 2025 to September 2026.
- 7
- flights per day
- 8
- busiest month · May
- 5
- quietest month · Mar
- 1 hr 7 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 5.5Jan2026
- 6Feb
- 5Mar
- 7Apr
- 8May
- 8Jun
- 8Jul
- 7Aug
- 6Sep
- 7Oct2025
- 7Nov
- 6Dec
Airlines
Who flies it
United Airlinesall year
American Airlinesall year
Republic Airwaysall year
SkyWest Airlinesall year
GoJet Airlines LLCall year
Envoy Airwinter
Through the day
Departure times
Local time in Chicago. Most departures between 13:00 and 16:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 6.7Mon
- 6.3Tue
- 6.2Wed
- 6.5Thu
- 6.5Fri
- 6.2Sat
- 6.3Sun
Fleet
Aircraft observed
- Embraer 175E75L31%
- Bombardier CRJ700CRJ721%
- Airbus A319A31917%
- Boeing 737-800B73812%
- Embraer 170E1706%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 5.5 | 156 |
|
| February 2026 | 6 | 164 |
|
| March 2026 | 5 | 162 |
|
| April 2026 | 7 | 197 |
|
| May 2026 | 8 | 210 |
|
| June 2026 | 8 | 224 |
|
| July 2026 | 8 | 229 |
|
| August 2026 | 7 | 199 |
|
| September 2026 | 6 | 187 |
|
| October 2025 | 7 | 202 |
|
| November 2025 | 7 | 206 |
|
| December 2025 | 6 | 170 |
|
Airlines observed on this route
From observed callsign routes on ORD-BUF - not a booking guarantee.
About this route
- Domestic route: both airports are in the same country.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Chicago: 259.
- Direct destinations observed from Buffalo: 62.
The airports on this route
Buffalo Niagara International Airport
Buffalo, United StatesBUF / KBUF
Regional airport · 62 direct destinations · 2 runways · longest runway 8,829 ft
66 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
MDW BUFChicago Midway International AirportChicago is about 16 mi from Chicago.View route →ORD ROCFrederick Douglass Greater Rochester International AirportRochester is about 55 mi from Buffalo.View route →ORD YTZBilly Bishop Toronto City AirportToronto is about 58 mi from Buffalo.View route →MKE BUFGeneral Mitchell International AirportMilwaukee is about 67 mi from Chicago.View route →
About the route from Chicago to Buffalo
The observed direct connection between Chicago O'Hare International Airport (ORD) and Buffalo Niagara International Airport (BUF) covers approximately 472 mi. The estimated flight time is around 1h 25m. American Airlines, Envoy Air, GoJet Airlines LLC, Republic Airways, SkyWest Airlines and United Airlines have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Chicago from Buffalo by air?
- The great-circle distance between Chicago O'Hare International Airport and Buffalo Niagara International Airport is approximately 472 mi.
- How long is the flight from Chicago to Buffalo?
- Based on the distance, the estimated flight time is about 1h 25m. This is an estimate, not a schedule.
- Is there a direct connection from Chicago to Buffalo?
- Yes, a direct connection between ORD and BUF has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: American Airlines, Envoy Air, GoJet Airlines LLC, Republic Airways, SkyWest Airlines and United Airlines.
- How often is there a flight from Chicago to Buffalo?
- On average around 7 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 2,306 observed flights. Mainly United Airlines, American Airlines, Republic Airways. That is an observation, not a timetable.
- What is the current time difference between Chicago and Buffalo?
- Buffalo is currently 1 hour ahead of Chicago.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.