Air Miles Calculator

Distance between Chicago, IL (ORD) and San Sebastian (EAS)

Flight distance from Chicago to San Sebastian (Chicago O'Hare International Airport – San Sebastián Airport) is 4176 miles / 6720 kilometers / 3629 nautical miles. Estimated flight time is 8 hours 24 minutes.

Map of flight path from Chicago to San Sebastian.

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

How far is San Sebastian from Chicago?

There are several ways to calculate distances between Chicago and San Sebastian. Here are two common 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 earth.

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).

Airport information


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

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

Time difference and current local times

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

Time Difference

Chicago, IL

 CDT

San Sebastian

 CEST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 485 kg (1 069 pounds).

Frequent Flyer Miles Calculator

Chicago (ORD) → San Sebastian (EAS).

Distance:
4176
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
4176

Round trip?