Distance From Gray Army Air Field to Luis Munoz Marin International Airport, GRF - SJU Distance

The distance from Gray Army Air Field (GRF) to Luis Munoz Marin International Airport (SJU) is 3733 miles or 6007 kilometers or 3242 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 Fort Lewis/Tacoma ( United States ) to San Juan ( Puerto Rico )?

A one-way nonstop (direct) flight between Fort Lewis/Tacoma and San Juan takes around 8 hours 34 minutes.

Estimated flight time from Gray Army Air Field, Fort Lewis/Tacoma, United States to Luis Munoz Marin International Airport, San Juan, Puerto Rico is 8 hours 34 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 • GRF - SJU

Kilometers		6007 km
Statute Miles		3733 miles
Nautical Miles		3242 nm
Avg. Time of Flight		8 hours 34 minutes

Gray Army Air Field to Luis Munoz Marin International Airport Flight Route Map - GRF to SJU Flight Path

Location of Gray Army Air Field & Luis Munoz Marin International Airport is given below.
Click the map to view Fort Lewis/Tacoma to San Juan nonstop flight path and travel direction.

Click to see flight route on Google Map between Fort Lewis/Tacoma, United States and San Juan, Puerto Rico. .

Nonstop flight route between Fort Lewis/Tacoma, United States and San Juan, Puerto Rico.

Time Difference Between the Airports • GRF - SJU

Time difference between Fort Lewis/Tacoma (United States) and San Juan (Puerto Rico) is 2 Hours.
San Juan time is 2 Hours ahead of Fort Lewis/Tacoma.

Location	Local Time
Fort Lewis/Tacoma (United States)	2026-03-19, 09:43:28 MDT
San Juan (Puerto Rico)	2026-03-19, 11:43:28 AST

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

Gray Army Air Field (GRF / KGRF) Fort Lewis/Tacoma, United States

Destination

Luis Munoz Marin International Airport (SJU / TJSJ) San Juan, Puerto Rico