Buffalo (BUF) to Chicago (ORD)
Flight time
≈ 1h 45m
Bearing
265° W
Buffalo (BUF) to Chicago (ORD) is 472 miles (760 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies BUF–ORD
US DOT T-100 · filed dataIn April 2026, American Airlines operated the most departures, one of 6 carriers flying nonstop BUF–ORD; the Airbus A319 was the most common aircraft at 36% of departures; flights ran 69% full.
Departures
434
April 2026
Seats
42,957
both directions
Passengers
29,574
both directions
Load factor
68.8%
passengers ÷ seats
Who flies BUF–ORD?
American Airlines operated the most nonstop BUF–ORD departures in April 2026 (141), one of 6 carriers on the route.
- AA
American Airlines
141 departures · 18,056 seats
Share of departures32.5%60.1%
Load
- YX
Republic Airways
98 departures · 7,448 seats
Share of departures22.6%73.8%
Load
- G7
GoJet Airlines
78 departures · 3,900 seats
Share of departures18.0%83.3%
Load
- UA
United Airlines
62 departures · 9,645 seats
Share of departures14.3%70.8%
Load
- OO
SkyWest Airlines
48 departures · 3,376 seats
Share of departures11.1%80.1%
Load
- MQ
Envoy Air
7 departures · 532 seats
Share of departures1.6%83.7%
Load
What plane flies BUF–ORD?
In April 2026, the Airbus A319 flew 36% of BUF–ORD departures — more than any other aircraft type.
- Airbus A319
155 departures · 62.0% load
35.7% - Embraer E175
143 departures · 75.8% load
33.0% - Bombardier CRJ-550
88 departures · 83.3% load
20.3% - Boeing 737-800
38 departures · 69.6% load
8.8% - Boeing 737 MAX 9
5 departures · 58.4% load
1.1% - Boeing 737-700
3 departures · 76.2% load
0.7% - Airbus A320
2 departures · 64.7% load
0.5%
How has BUF–ORD traffic changed?
Nonstop BUF–ORD departures fell from 536 in May 2025 to 434 in April 2026.
Monthly nonstop BUF–ORD traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
536 departures · 37,963 passengers
83.3%
Load
June 2025
465 departures · 38,676 passengers
82.1%
Load
July 2025
478 departures · 45,641 passengers
82.6%
Load
August 2025
419 departures · 42,547 passengers
85.4%
Load
September 2025
416 departures · 42,100 passengers
77.6%
Load
October 2025
425 departures · 37,516 passengers
78.1%
Load
November 2025
425 departures · 24,142 passengers
69.4%
Load
December 2025
376 departures · 24,928 passengers
74.0%
Load
January 2026
339 departures · 20,265 passengers
77.5%
Load
February 2026
330 departures · 19,915 passengers
78.8%
Load
March 2026
356 departures · 23,210 passengers
79.2%
Load
April 2026
434 departures · 29,574 passengers
68.8%
Load
By direction
The DOT files each direction separately — they rarely match.
ORD → BUF
68.2% full
218 departures · 14,667 passengers
BUF → ORD
69.5% full
216 departures · 14,907 passengers
Nonstop BUF–ORD traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Buffalo (BUF) from Chicago (ORD)?
BUF to ORD is 472 miles (760 km / 410 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from BUF to ORD?
A nonstop covers the 472-mile great-circle distance in roughly 1h 45m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies BUF–ORD?
In April 2026, the Airbus A319 flew the largest share of departures (35.7%), followed by the Embraer E175 (33.0%).
What mileage do I earn flying BUF–ORD?
Distance-based programs credit off the 472-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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