Roche Harbor Seaplane Base (IATA: RCE[2], FAA LID: W39) is a public-use seaplane base located adjacent to Roche Harbor, on San Juan Island in San Juan County, Washington, United States.

It is owned by the Roche Harbor Resort.

[1] Roche Harbor Seaplane Base has two seaplane landing areas: NE/SW is 5,000 by 1,000 feet (1,524 x 305 m) and NW/SE is 2,500 by 500 feet (762 x 152 m).

For the 12-month period ending May 31, 2009, the airport had 2,800 aircraft operations, an average of 233 per month: 57% air taxi and 43% general aviation.

[1]