ICAO		IATA		Other		Location
KHIO		HIO		HIO		Portland [Portland-Hillsboro Airport], Oregon, US (51 mi / 82 km W)
				7S9		Hubbard [Lenhardt Airpark], Oregon, US (52 mi / 84 km SW)
				7S3		Hillsboro [Stark's Twin Oaks Airpark], Oregon, US (52 mi / 84 km W)
				OG46		Hillsboro [Tuality Hospital Heliport], Oregon, US (52 mi / 84 km W)
				S20		Goldendale, Washington, US (53 mi / 86 km E)
				1OR3		North Plains [Sunset Airstrip], Oregon, US (53 mi / 86 km W)
				28OR		Newberg [Parrett Mountain Airport], Oregon, US (54 mi / 86 km SW)
				1OR4		North Plains [North Plains Gliderport], Oregon, US (54 mi / 87 km W)
				OR81		Hillsboro [Olinger Airpark], Oregon, US (54 mi / 87 km W)
				1OR1		Newberg [Chehalem Mountain Heliport], Oregon, US (54 mi / 87 km W)
				67OR		Donald [McGee Airport], Oregon, US (54 mi / 87 km SW)
				OG63		North Plains [Gilbert Airport], Oregon, US (54 mi / 88 km W)
				40WA		White Swan [Signal Peak Lookout Heliport], Washington, US (55 mi / 88 km NE)
				WN80		Kelso [Walters Arv Ultralight Flightpark], Washington, US (55 mi / 88 km NW)
				OR31		Hillsboro [Sohler's Holly Hill Airport], Oregon, US (55 mi / 88 km W)
				OG55		Newberg [Providence Newberg Medical Center Heliport], Oregon, US (55 mi / 89 km SW)
				4S4		Cornelius [Skyport Airport], Oregon, US (55 mi / 89 km W)
				7WA6		Donald [Loflin Heliport], Oregon, US (55 mi / 89 km SW)
				2S6		Newberg [Sportsman Airpark], Oregon, US (56 mi / 91 km SW)
				9OR7		Banks [Fishback Heliport], Oregon, US (56 mi / 91 km W)