How far is Ontario, CA, from London?

The distance between London (London Stansted Airport) and Ontario (Ontario International Airport) is 5427 miles / 8734 kilometers / 4716 nautical miles.

Distance from London to Ontario

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

Vincenty's formula (applied above)

• 5426.976 miles
• 8733.871 kilometers
• 4715.913 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

• 5413.962 miles
• 8712.927 kilometers
• 4704.604 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 London to Ontario?

The estimated flight time from London Stansted Airport to Ontario International Airport is 10 hours and 46 minutes.

What is the time difference between London and Ontario?

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

Flight carbon footprint between London Stansted Airport (STN) and Ontario International Airport (ONT)

On average, flying from London to Ontario generates about 640 kg of CO2 per passenger, and 640 kilograms equals 1 411 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from London to Ontario

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

Airport information

Origin	London Stansted Airport
City:	London
Country:	United Kingdom
IATA Code:	STN
ICAO Code:	EGSS
Coordinates:	51°53′5″N, 0°14′5″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