Buffalo (BUF) – Chicago (ORD)
- Distance
- 762 km
- 473 mi · 411 nm
- Flight time
- 2 h 1 min / 1 h 41 min
- Average gate to gate: BUF → ORD / back
- Time difference
- 1 h
- CO2 per passenger
- 96 kg
- One way, economy, incl. RF (56 kg CO2 only)
- Passengers / year
- 387,635
- Aug 2025 – Jul 2026 · +1.0%
- Flights / week
- 95
- Both directions, average
- Seats filled
- 77%
- 502,907 seats a year
- Airlines nonstop
- 6
- UA, AA, YX
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from BUF
- 265°
- Heading from ORD
- 79°
- Halfway point
- 42.55, -83.35
- Great-circle km
- 760 km (sphere, for EU261)
- In the air BUF → ORD
- 1 h 21 min
- In the air ORD → BUF
- 1 h 7 min
- Clocks
- Chicago is 1 h behind Buffalo
The estimate for a route without real times is 1 h 40 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 42,193 |
| Sep 2025 | 42,100 |
| Oct 2025 | 37,516 |
| Nov 2025 | 24,039 |
| Dec 2025 | 24,928 |
| Jan 2026 | 20,265 |
| Feb 2026 | 19,915 |
| Mar 2026 | 23,210 |
| Apr 2026 | 29,574 |
| May 2026 | 39,728 |
| Jun 2026 | 39,970 |
| Jul 2026 | 44,197 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 417 |
| Sep 2025 | 416 |
| Oct 2025 | 425 |
| Nov 2025 | 422 |
| Dec 2025 | 376 |
| Jan 2026 | 339 |
| Feb 2026 | 330 |
| Mar 2026 | 356 |
| Apr 2026 | 434 |
| May 2026 | 491 |
| Jun 2026 | 464 |
| Jul 2026 | 475 |
Airlines flying BUF–ORD nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| UAUnited Air Lines | 23 | 36% |
| AAAmerican Airlines | 18 | 24% |
| YXRepublic Airline | 14 | 11% |
| MQEnvoy Air | 14 | 11% |
| OOSkyWest Airlines | 14 | 10% |
| G7GoJet Airlines | 13 | 8% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- Embraer ERJ-175 · 1,523 flights
- Bombardier CRJ550 · 879 flights
- Airbus Industrie A319 · 815 flights
- Boeing 737-800 · 633 flights
- Boeing 737-900ER · 311 flights
- Embraer-Emb-170 · 295 flights
- Boeing 737-700/700LR/Max 7 · 183 flights
- Canadair RJ-700 · 132 flights
Also carried: 10 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 72.9%
- Arrived within 15 min of schedule
- Average delay
- 25 min
- Late arrivals count, early ones as 0
- Cancelled
- 3.1%
- Flights counted
- 4,397
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| UAUnited Air Lines | 75.2% | 23 min |
| AAAmerican Airlines | 72.1% | 27 min |
| OOSkyWest Airlines | 63.5% | 39 min |
| YXRepublic Airline | 76.7% | 21 min |
| MQEnvoy Air | 75.4% | 17 min |
Delay minutes by cause: airline 30% · aircraft arriving late 40% · air traffic system 23% · weather 7% · security 0%.
Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources
What passengers paid
- Average fare, Q4 2025
- $238
- One way, all cabins
- Average over a year
- $223
- Q2 2025 – Q4 2025
- Largest airline
- United Air Lines
- 52% of passengers · $253
- Lowest-fare airline
- American Airlines
- 45% of passengers · $220
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $232 · Q3 2025 $206 · Q4 2025 $238).
U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 760 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.
Every airport pair between Buffalo and Chicago
Kilometres. Linked numbers have a page of their own. All Chicago airports
More routes from BUF
More routes from ORD
| Route | Distance | Passengers / year |
|---|---|---|
| ORD → LGA | 1,180 km | 2,736,902 |
| ORD → LAX | 2,808 km | 2,332,419 |
| ORD → SFO | 2,971 km | 1,976,484 |
| ORD → DEN | 1,430 km | 1,974,190 |
| ORD → MCO | 1,617 km | 1,924,694 |
| ORD → DFW | 1,290 km | 1,916,312 |
| ORD → BOS | 1,395 km | 1,886,038 |
| ORD → EWR | 1,157 km | 1,731,402 |
| ORD → IAH | 1,489 km | 1,711,056 |
| ORD → PHX | 2,317 km | 1,706,053 |