How far is San Sebastian from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and San Sebastian (San Sebastián Airport) is 4176 miles / 6720 kilometers / 3629 nautical miles.

Distance from Chicago to San Sebastian

There are several ways to calculate the distance from Chicago to San Sebastian. Here are two standard methods:

Vincenty's formula (applied above)

• 4175.672 miles
• 6720.093 kilometers
• 3628.560 nautical miles

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

Haversine formula

• 4164.680 miles
• 6702.402 kilometers
• 3619.008 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).

How long does it take to fly from Chicago to San Sebastian?

The estimated flight time from Chicago O'Hare International Airport to San Sebastián Airport is 8 hours and 24 minutes.

What is the time difference between Chicago and San Sebastian?

The time difference between Chicago and San Sebastian is 7 hours. San Sebastian is 7 hours ahead of Chicago.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and San Sebastián Airport (EAS)

On average, flying from Chicago to San Sebastian generates about 478 kg of CO2 per passenger, and 478 kilograms equals 1 055 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to San Sebastian

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and San Sebastián Airport (EAS).

Airport information

Origin	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

Destination	San Sebastián Airport
City:	San Sebastian
Country:	Spain
IATA Code:	EAS
ICAO Code:	LESO
Coordinates:	43°21′23″N, 1°47′26″W