Distance From Diego Garcia Naval Support Facility to Seattle–Tacoma International Airport, NKW - SEA Distance

The distance from Diego Garcia Naval Support Facility (NKW) to Seattle–Tacoma International Airport (SEA) is 9531 miles or 15338 kilometers or 8277 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Diego Garcia ( British Indian Ocean Territory ) to Seattle ( United States )?

A one-way nonstop (direct) flight between Diego Garcia and Seattle takes around 21 hours 54 minutes.

Estimated flight time from Diego Garcia Naval Support Facility, Diego Garcia, British Indian Ocean Territory to Seattle–Tacoma International Airport, Seattle, United States is 21 hours 54 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • NKW - SEA

Kilometers		15338 km
Statute Miles		9531 miles
Nautical Miles		8277 nm
Avg. Time of Flight		21 hours 54 minutes

Diego Garcia Naval Support Facility to Seattle–Tacoma International Airport Flight Route Map - NKW to SEA Flight Path

Location of Diego Garcia Naval Support Facility & Seattle–Tacoma International Airport is given below.
Click the map to view Diego Garcia to Seattle nonstop flight path and travel direction.

Click to see flight route on Google Map between Diego Garcia, British Indian Ocean Territory and Seattle, United States. .

Nonstop flight route between Diego Garcia, British Indian Ocean Territory and Seattle, United States.

Time Difference Between the Airports • NKW - SEA

Time difference between Diego Garcia (British Indian Ocean Territory) and Seattle (United States) is 13 Hours.
Seattle time is 13 Hours behind Diego Garcia.

Location	Local Time
Diego Garcia (British Indian Ocean Territory)	2025-12-15, 01:21:14 +06
Seattle (United States)	2025-12-14, 12:21:14 MST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Diego Garcia Naval Support Facility (NKW / FJDG) Diego Garcia, British Indian Ocean Territory

Destination

Seattle–Tacoma International Airport (SEA / KSEA) Seattle, United States