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
Filed traffic dataIn May 2026, American Airlines operated the most departures, one of 5 carriers flying nonstop BUF–ORD; the Airbus A319 was the most common aircraft at 36% of departures; flights ran 72% full.
Departures
491
May 2026
Seats
54,897
both directions
Passengers
39,728
both directions
Load factor
72.4%
RPM ÷ ASM
Who flies BUF–ORD?
American Airlines operated the most nonstop BUF–ORD departures in May 2026 (162), one of 5 carriers on the route.
- AA
162 departures · 21,872 seats
Share of departures33.0%66.2%
Load
- UA
153 departures · 22,122 seats
Share of departures31.2%75.3%
Load
- G7
60 departures · 3,000 seats
Share of departures12.2%86.2%
Load
- YX
60 departures · 4,549 seats
Share of departures12.2%73.6%
Load
- OO
56 departures · 3,354 seats
Share of departures11.4%79.2%
Load
What plane flies BUF–ORD?
In May 2026, the Airbus A319 flew 36% of BUF–ORD departures — more than any other aircraft type.
- Airbus A319
175 departures · 67.7% load
35.6% - Bombardier CRJ-550
84 departures · 83.7% load
17.1% - Embraer E175
70 departures · 74.2% load
14.3% - Boeing 737-700
54 departures · 80.4% load
11.0% - Boeing 737-900ER
38 departures · 76.9% load
7.7% - Boeing 737-800
27 departures · 66.0% load
5.5% - Bombardier CRJ-700
22 departures · 81.2% load
4.5% - Airbus A320
10 departures · 63.3% load
2.0% - Boeing 737 MAX 9
6 departures · 78.9% load
1.2% - Boeing 737 MAX 8
3 departures · 78.7% load
0.6% - Airbus A321neo
2 departures · 22.9% load
0.4%
How has BUF–ORD traffic changed?
Nonstop BUF–ORD departures rose from 465 in June 2025 to 491 in May 2026.
Monthly nonstop BUF–ORD traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
May 2026
491 departures · 39,728 passengers
72.4%
Load
By direction
Each direction is filed separately — they rarely match.
BUF → ORD
72.5% full
247 departures · 20,003 passengers
ORD → BUF
72.2% full
244 departures · 19,725 passengers
Nonstop BUF–ORD traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
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 May 2026, the Airbus A319 flew the largest share of departures (35.6%), followed by the Bombardier CRJ-550 (17.1%).
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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