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How far is Colombo from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Colombo (Bandaranaike International Airport) is 8434 miles / 13573 kilometers / 7329 nautical miles.

Seattle–Tacoma International Airport – Bandaranaike International Airport

Distance arrow
8434
Miles
Distance arrow
13573
Kilometers
Distance arrow
7329
Nautical miles
Flight time duration
16 h 28 min
Time Difference
13 h 30 min
CO2 emission
1 062 kg

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Distance from Seattle to Colombo

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

Vincenty's formula (applied above)
  • 8433.631 miles
  • 13572.613 kilometers
  • 7328.625 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
  • 8425.815 miles
  • 13560.035 kilometers
  • 7321.833 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 Colombo?

The estimated flight time from Seattle–Tacoma International Airport to Bandaranaike International Airport is 16 hours and 28 minutes.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Bandaranaike International Airport (CMB)

On average, flying from Seattle to Colombo generates about 1 062 kg of CO2 per passenger, and 1 062 kilograms equals 2 342 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Colombo

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

Airport information

Origin Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W
Destination Bandaranaike International Airport
City: Colombo
Country: Sri Lanka Flag of Sri Lanka
IATA Code: CMB
ICAO Code: VCBI
Coordinates: 7°10′50″N, 79°53′2″E