ICAO		IATA		Other		Location
KTTD		TTD		TTD		Portland [Portland-Troutdale Airport], Oregon, US (12 mi / 20 km E)
				1OR9		Oregon City [Providence Willamette Falls Medical Center Heliport], Oregon, US (12 mi / 20 km S)
				OG34		Tigard [Meyer Riverside Airpark], Oregon, US (13 mi / 20 km SW)
				W56		Vancouver [Fly For Fun Airport], Washington, US (13 mi / 20 km NE)
				WA67		Vancouver [Green Mountain Airport], Washington, US (13 mi / 20 km NE)
				OR00		Beaverton [Flying K Ranch Airport], Oregon, US (13 mi / 21 km SW)
				57OR		West Linn [Wilson Helispot Heliport], Oregon, US (13 mi / 21 km S)
				1WA0		Vancouver [Legacy Salmon Creek Hospital Heliport], Washington, US (13 mi / 21 km N)
				OR28		Beaverton [Harvey's Acres Airport], Oregon, US (13 mi / 21 km SW)
				92OR		West Linn [Falcon Point Heliport], Oregon, US (13 mi / 22 km S)
				1W1		Camas [Grove Field], Washington, US (14 mi / 22 km NE)
				5WA9		Brush Prairie [Brush Prairie Aerodrome], Washington, US (14 mi / 23 km N)
				2OR0		Oregon City [Nielsen Airport], Oregon, US (14 mi / 23 km SE)
				28WA		Vancouver [Robert L Delanoy Airport], Washington, US (14 mi / 23 km N)
KHIO		HIO		HIO		Portland [Portland-Hillsboro Airport], Oregon, US (15 mi / 24 km W)
				OG30		Oregon City [Aeroacres Airport], Oregon, US (15 mi / 24 km S)
				OG20		Oregon City [Fairways Airport], Oregon, US (15 mi / 25 km S)
				7S3		Hillsboro [Stark's Twin Oaks Airpark], Oregon, US (16 mi / 25 km SW)
				OG46		Hillsboro [Tuality Hospital Heliport], Oregon, US (16 mi / 26 km W)
				34WA		Washougal [Orbit Heliport], Washington, US (16 mi / 26 km E)