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Ontario–Seattle | ONT–SEA
Calculations with different methods
- 956.132 miles
- 1538.746 kilometers
- 830.856 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
- 957.141 miles
- 1540.370 kilometers
- 831.733 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Ontario International Airport (ONT) to Seattle–Tacoma International Airport (SEA) is 2 hours 18 minutes.
Time difference and current local times
There is no time difference between Ontario and Seattle.
Ontario to Seattle flight map.
Frequent Flyer Miles Calculator
Ontario (ONT) → Seattle (SEA).