Chicago to Buffalo (ORD–BUF) — Airlines, Schedules & Connections
No flights match your filters.
No nonstop flights on this route. connecting options below.
ORD–BUF is served by 2 airlines with nonstop service. American Airlines and United Airlines lead the route. The flight covers 472 miles in approximately 1h 41m. Beyond nonstop, 70 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AA American Airlines Also: AS, GF, RJ | 56 | 319, 738, CR7, E75, E75L | 1h41-1h51 | Oneworld | AS, GF, RJ | |
| UA United Airlines Also: AC, AV, CM, LX, NZ | 53 | 319, 739, 73G, CR5, E75L, E7W | 1h41-1h51 | Star Alliance | AC, AV, CM, LX, NZ |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Buffalo from Chicago
| Metric | ORD→BUF | MDW→BUF | MKE→BUF |
|---|---|---|---|
| Distance from ORD | – | 15 mi | 67 mi |
| Nonstop airlines | 2 | 2 | 3 |
| Weekly flights | 242 | 20 | – |
| Flight time | 1h 41m | 1h 16m | 1h 7m |
| Departure OTP | 40% | – | – |
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 American Airlines and United Airlines. With 242 weekly departures, this is a heavily served route.
ORD to BUF Flight Duration and Schedule
Nonstop flight time from ORD to BUF ranges from 1 hours 41 minutes to 1 hours 51 minutes. The route covers a distance of 472 miles (760 km). There are approximately 242 weekly flights outbound and 270 return, totaling 512 flights per week in both directions.
Connecting Options and Alternatives
70 one-stop connections are available, with the fastest taking approximately 2 hours via CGF. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Chicago (MDW) and Milwaukee (MKE).