Great-circle route ORD ↔ SFO. Faint dots are other airports, for geographic context. Download this map — free to reuse with a link back to this page.
Frequencies below are per direction, from our most recent schedule sample. The two directions are not identical — that is normal on scheduled routes.
| Direction | Frequency | Days | Airlines |
|---|---|---|---|
| ORD → SFO Chicago to San Francisco |
110/wk | Daily | American Airlines, United Airlines |
| SFO → ORD San Francisco to Chicago |
123/wk | Daily | American Airlines, United Airlines |
Where a direction shows “—” we track it as an operating nonstop but hold no schedule sample for it — we would rather show nothing than guess.
In 2025, airlines reported 1,940,444 passengers on 10,629 flights between ORD and SFO — about 5,319 a day — filling 88% of the 2,212,554 seats flown. United Air Lines Inc. carried the most passengers (72%).
Source: US DOT T-100 segment reports — actual airline-reported traffic, scheduled service only, both directions combined. Cargo and charter flights excluded.
2 airlines fly the ORD–SFO nonstop, including American Airlines, United Airlines.
Recent scheduled departures on this route have used the Boeing 757-300, Boeing 737-800, Boeing 777, Airbus A321 and 3 other types.
Aircraft assignments change by season and by time of day.
On a long east–west route like this one the two directions do not take the same time. Aircraft flying eastbound ride the mid-latitude jet stream and typically arrive earlier than the westbound leg, which flies into it. The difference is commonly 30 to 90 minutes on transatlantic and transpacific flights, and it varies by season. The estimate above does not model wind — treat it as a midpoint and check the airline's own timetable for the block time on your date.
The distance between Chicago O'Hare International Airport and San Francisco International Airport is 1,842 miles, or 2,964 kilometres.
| Great-circle distance | 1,842 mi |
| Kilometres | 2,964 km |
| Nautical miles | 1,601 nmi |
Measured airport to airport. The actual track is longer — aircraft follow airways, avoid restricted airspace and route around weather.
Yes. 2 airlines fly the route nonstop, with about 233 departures a week across both directions. The route is in our live nonstop dataset, last seeded 2026-07-07.
About 4h 09m in the air. That is a great-circle estimate from the 1,842-mile distance, not a scheduled block time — an airline's published time will differ by roughly 15 to 45 minutes depending on routing, winds and taxi.
About 110 a week from Chicago to San Francisco and 123 a week from San Francisco to Chicago, from our most recent schedule sample.
American Airlines, United Airlines.
In 2025, airlines reported 1,940,444 passengers on 10,629 scheduled flights between ORD and SFO — about 5,319 a day — filling 88% of the seats flown. Source: US DOT T-100 segment reports, both directions combined.
Recent scheduled departures have used the Boeing 757-300, Boeing 737-800, Boeing 777, Airbus A321. Assignments change by season and by time of day.
