How far is Florence from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Florence (Florence Airport) is 5541 miles / 8918 kilometers / 4815 nautical miles.

Distance from Seattle to Florence

There are several ways to calculate the distance from Seattle to Florence. Here are two standard methods:

Vincenty's formula (applied above)

• 5541.339 miles
• 8917.921 kilometers
• 4815.292 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

• 5526.181 miles
• 8893.526 kilometers
• 4802.120 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 Seattle to Florence?

The estimated flight time from Seattle–Tacoma International Airport to Florence Airport is 10 hours and 59 minutes.

What is the time difference between Seattle and Florence?

The time difference between Seattle and Florence is 9 hours. Florence is 9 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Florence Airport (FLR)

On average, flying from Seattle to Florence generates about 655 kg of CO2 per passenger, and 655 kilograms equals 1 444 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Florence

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Florence Airport (FLR).

Airport information

Origin	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W

Destination	Florence Airport
City:	Florence
Country:	Italy
IATA Code:	FLR
ICAO Code:	LIRQ
Coordinates:	43°48′36″N, 11°12′18″E