How far is Ontario, CA, from Southend?

The distance between Southend (London Southend Airport) and Ontario (Ontario International Airport) is 5456 miles / 8781 kilometers / 4741 nautical miles.

Distance from Southend to Ontario

There are several ways to calculate the distance from Southend to Ontario. Here are two standard methods:

Vincenty's formula (applied above)

• 5456.168 miles
• 8780.851 kilometers
• 4741.280 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

• 5443.095 miles
• 8759.813 kilometers
• 4729.921 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 Southend to Ontario?

The estimated flight time from London Southend Airport to Ontario International Airport is 10 hours and 49 minutes.

What is the time difference between Southend and Ontario?

The time difference between Southend and Ontario is 8 hours. Ontario is 8 hours behind Southend.

Flight carbon footprint between London Southend Airport (SEN) and Ontario International Airport (ONT)

On average, flying from Southend to Ontario generates about 644 kg of CO2 per passenger, and 644 kilograms equals 1 419 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Southend to Ontario

See the map of the shortest flight path between London Southend Airport (SEN) and Ontario International Airport (ONT).

Airport information

Origin	London Southend Airport
City:	Southend
Country:	United Kingdom
IATA Code:	SEN
ICAO Code:	EGMC
Coordinates:	51°34′17″N, 0°41′44″E

Destination	Ontario International Airport
City:	Ontario, CA
Country:	United States
IATA Code:	ONT
ICAO Code:	KONT
Coordinates:	34°3′21″N, 117°36′3″W