Air Miles Calculator

Distance between Seattle, WA (SEA) and Seoul (ICN)

Distance from Seattle–Tacoma International Airport to Incheon International Airport is 5217 miles / 8396 kilometers / 4533 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 5216.922 miles
  • 8395.821 kilometers
  • 4533.381 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
  • 5203.796 miles
  • 8374.698 kilometers
  • 4521.975 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Seattle–Tacoma International Airport (SEA) to Incheon International Airport (ICN) is 10 hours 22 minutes.

Time difference and current local times

The time difference between Seattle and Seoul is 17 hours. Seoul is 17 hours ahead of Seattle.

Time Difference

Seattle
Seoul

Seattle, WA

 PST

Seoul

 KST

Airport information


A 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

B Incheon International Airport
City: Seoul
Country: South Korea Flag of South Korea
IATA Code: ICN
ICAO Code: RKSI
Coordinates: 37°27′36″N, 126°26′26″E

Map

Flight map from Seattle to Seoul.

Frequent Flyer Miles Calculator

Seattle (SEA) → Seoul (ICN).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
5217
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
5217

Round trip?