Chicago to Buffalo (ORD–BUF) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
ORD–BUF is served by 3 airlines with nonstop service. United Airlines, American Airlines and Delta Air Lines lead the route. The flight covers 472 miles in approximately 1h 48m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, AV, CM, LX, NZ | 49 | 319, 738, 739, B39M, CR5, CR7, E7W | 1h39-1h51 | Star Alliance | AC, AV, CM, LX, NZ | |
| AA American Airlines Also: AS, GF, IB, QR, RJ | 42 | 319, 738, CR7, E75 | 1h40-1h52 | Oneworld | AS, GF, IB, QR, RJ | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Buffalo from Chicago
| Metric | ORD→BUF | MDW→BUF | MKE→BUF |
|---|---|---|---|
| Distance from ORD | – | 15 mi | 67 mi |
| Nonstop airlines | 3 | 3 | 4 |
| Weekly flights | 219 | 39 | – |
| Flight time | 1h 48m | 1h 22m | 1h 3m |
| Departure OTP | 63% | – | – |
Travel Essentials
ORD: CDT · BUF: EDT
When it's 6:00 PM in Chicago, it's 7:00 PM in Buffalo.
CTA Blue Line runs 24/7 from downtown Loop stations to O'Hare (45 min, $5). Pace buses serve suburbs. Ride-shares cost $35–55 from downtown depending on traffic; add 30+ minutes during rush hour on the Kennedy Expressway.Economy parking lots E/F connect via ATS people mover. Terminal 5 (international) is separate from Terminals 1–3; allow extra time for inter-terminal transfers.
ORD–BUF Quick Facts
Frequently Asked Questions
Flights from ORD to BUF
Chicago O'Hare International Airport (ORD) and Buffalo Niagara International Airport (BUF) are connected by nonstop service from United Airlines, American Airlines and Delta Air Lines. With 219 weekly departures, this is a heavily served route.
ORD to BUF Flight Duration and Schedule
Nonstop flight time from ORD to BUF is about 1 hours 48 minutes gate to gate. The route covers a distance of 472 miles (760 km). There are approximately 219 weekly flights outbound and 243 return, totaling 462 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Chicago Midway, Detroit Metropolitan Wayne County and Baltimore/Washington International Thurgood Marshall. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Chicago (MDW) and Milwaukee (MKE).