ICAO		IATA		Other		Location
KTTD		TTD		TTD		Portland [Portland-Troutdale Airport], Oregon, US (1 mi / 1 km NE)
				56OR		Gresham [Mount Hood Medical Center Heliport], Oregon, US (2 mi / 3 km S)
				34WA		Washougal [Orbit Heliport], Washington, US (5 mi / 8 km E)
				1W1		Camas [Grove Field], Washington, US (6 mi / 9 km N)
				9OR5		Portland [Portland Adventist Medical Center Heliport], Oregon, US (7 mi / 12 km W)
				6OR7		Boring [Schmidt Airport], Oregon, US (8 mi / 12 km SE)
				WA63		Washougal [Pleasant Farm Airport], Washington, US (8 mi / 12 km E)
				WA81		Vancouver [Evergreen North-South Airpark], Washington, US (8 mi / 13 km NW)
				OR72		Boring [Fly JLA Airport], Oregon, US (8 mi / 13 km SE)
				OR35		Boring [Flying K Bar J Ranch Airport], Oregon, US (8 mi / 13 km SE)
				WA67		Vancouver [Green Mountain Airport], Washington, US (9 mi / 14 km N)
KPDX		PDX		PDX		Portland [Intl], Oregon, US (9 mi / 15 km W)
				OR50		Corbett [Lehman Field], Oregon, US (10 mi / 15 km SE)
				34OR		Portland [Providence Portland Medical Center Heliport], Oregon, US (10 mi / 16 km W)
				21WA		Vancouver [St. Joseph Community Hospital Heliport], Washington, US (10 mi / 16 km NW)
				WN67		Vancouver [Southwest Washington Medical Center Heliport], Washington, US (10 mi / 16 km NW)
				4OR6		Sandy [Stargazer Field], Oregon, US (10 mi / 16 km SE)
				W56		Vancouver [Fly For Fun Airport], Washington, US (11 mi / 18 km NW)
				4WA1		Skamania [Brown's Cape Horn Airport], Washington, US (11 mi / 18 km NE)
				OG29		Sandy [McKinnon Airpark], Oregon, US (11 mi / 18 km SE)