# Distance between Chicago, IL (ORD) and San Francisco, CA (SFO)

Flight distance from Chicago to San Francisco (Chicago O'Hare International Airport – San Francisco International Airport) is 1846 miles / 2971 kilometers / 1604 nautical miles. Estimated flight time is 3 hours 59 minutes.

Driving distance from Chicago (ORD) to San Francisco (SFO) is 2139 miles / 3442 kilometers and travel time by car is about 34 hours 50 minutes.

## Map of flight path and driving directions from Chicago to San Francisco.

Shortest flight path between Chicago O'Hare International Airport (ORD) and San Francisco International Airport (SFO).

## How far is San Francisco from Chicago?

There are several ways to calculate distances between Chicago and San Francisco. Here are two common methods:

Vincenty's formula (applied above)
• 1846.120 miles
• 2971.042 kilometers
• 1604.235 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 1841.724 miles
• 2963.967 kilometers
• 1600.414 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Chicago O'Hare International Airport
City: Chicago, IL
Country: United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B San Francisco International Airport
City: San Francisco, CA
Country: United States
IATA Code: SFO
ICAO Code: KSFO
Coordinates: 37°37′8″N, 122°22′30″W

## Time difference and current local times

The time difference between Chicago and San Francisco is 2 hours. San Francisco is 2 hours behind Chicago.

CDT

PDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 204 kg (449 pounds).

## Frequent Flyer Miles Calculator

Chicago (ORD) → San Francisco (SFO).

Distance:
1846
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1846

Round trip?