Portland Hillsboro Airport traffic pattern

Pattern altitude at Portland Hillsboro Airport (HIO · KHIO) is 1,200 ft MSL (≈1,000 AGL) by the standard convention — none is published for this field, and 02, 31R are charted right traffic.

All of Portland Hillsboro Airport — runways, frequencies, charts and live weather

Pattern diagram

Drawn to scale from the FAA NASR runway alignments and the per end right traffic flags — pick a runway to see its pattern. Live wind picks the favored runway when KHIO reports it.

RWY 20LEFT traffic

Heading: 204° mag · 220° true
Dimensions: 3,820 × 75 ft
TPA: 1,200 ft MSL (≈1,000 AGL) · standard
Surface: Asphalt
Lights: 4-light PAPI (left) (3°)
CTAF: 119.3

More details — RWY 20

Threshold elev: 208 ft
Markings: basic
Approach obstacle: Tree, 72 ft, 2,105 ft from threshold, 450 ft L of centerline — 26:1 slope to clear
Threshold crossing height: 38 ft
TDZ elevation: 208 ft

Condition: Good. Edge lights: Med. Weight bearing: Single wheel 54.5k, Double wheel 74k, Dual tandem 139k. PCN 20.

Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates

Pattern direction by runway

Runway	Pattern	Heading	Pattern altitude
02	Right traffic	023° mag	1,200 ft MSL (≈1,000 AGL)
20	Left traffic	203° mag	1,200 ft MSL (≈1,000 AGL)
13L	Left traffic	128° mag	1,200 ft MSL (≈1,000 AGL)
31R	Right traffic	308° mag	1,200 ft MSL (≈1,000 AGL)
13R	Left traffic	127° mag	1,200 ft MSL (≈1,000 AGL)
31L	Left traffic	307° mag	1,200 ft MSL (≈1,000 AGL)

No pattern altitude is published for KHIO; the figure above is the AC 90-66B 1,000 ft AGL convention for propeller aircraft, rounded to the field. Turbine aircraft normally fly 1,500 ft AGL. Headings are the runway alignment; downwind is the reciprocal.

Flying the pattern at KHIO

Portland Hillsboro Airport is towered, working 119.3. Contact the tower before entering the surface area and fly the pattern you are assigned — the directions below are the charted default when no instruction is given.

Watch the right traffic ends here: 02, 31R. A right pattern at a field where the other end is left is the single most common place to end up pointing at opposing traffic. The full entry procedure is here →

Frequently asked

What is the traffic pattern altitude at KHIO?

Portland Hillsboro Airport has no traffic pattern altitude published in the FAA NASR data. The AC 90-66B convention for propeller aircraft is 1,000 ft AGL, which works out to roughly 1,200 ft MSL (≈1,000 AGL) here — but confirm it against the Chart Supplement before you fly, since a field can have a non standard pattern altitude that NASR does not carry.

Does KHIO have right traffic?

Yes, on 2 runway ends: 02, 31R. Every other end at Portland Hillsboro Airport is standard left traffic.

Do I fly a standard pattern at KHIO?

Portland Hillsboro Airport is towered (119.3), so the pattern shown here is the charted default — but the controller's instruction overrides it. Expect straight in approaches, base entries and midfield crossings as traffic dictates.

More about KHIO

Pattern direction and alignment are drawn from the FAA NASR (28-day cycle); the diagram is generated, not an FAA chart. Pattern altitude is shown as published where NASR carries one, otherwise as the AC 90-66B 1,000 ft AGL convention. For planning and education only; always verify against the Chart Supplement.