Sunnyside Municipal (1S5), Washington
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Sunnyside Municipal (1S5) is a single-runway, unattended field in south-central Washington, roughly 41 nm from the nearest metro area. It handles a small volume of business aviation traffic, with 100LL as the only fuel available and no jet fuel on field.
Runways
Sunnyside Municipal has one paved runway, 07/25, 3,425 ft long and 60 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Sunnyside Municipal has 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Sunnyside Municipal does not clear customs. The nearest port of entry is WA24, 40 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Sunnyside Municipal recorded 126 business aviation movements in 2025. Traffic peaks in December. Business aviation traffic at 1S5 is concentrated toward the middle and end of the year, with August and December recording the highest monthly operations in 2025.
Business jet movements, FAA TFMSC count. Peak month December, 20 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Sunnyside Municipal has published operating constraints in three categories: access, runway notes and other notes.
For clearance delivery, contact Spokane Approach; when Approach is closed, contact Seattle ARTCC.
An obstruction is located near runway 25: Aces Road, 80 feet from the end of the runway.
All airport property within 20 feet of the runway is used for agricultural purposes.
Retro-reflective devices are installed along the taxiways.
Migratory geese are present in the area.
Source: FAA Chart Supplement.
Nearby airfields
Sunnyside Municipal has five airfields within 32 NM. The closest is Prosser, 9.96 NM southeast.
Part of the Eastern Washington and Oregon area.
Source: Skystar calculation from official coordinates.
Skystar at 1S5
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$600.00 catering order at 1S5.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
The $75 minimum applies below $862.50.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
Is jet fuel available at 1S5?
No. Sunnyside Municipal (1S5) stocks only 100LL avgas and has no Jet A on field. Operators needing jet fuel should plan a fuel stop elsewhere in the region.
Is Sunnyside Municipal Airport attended or towered?
Sunnyside Municipal (1S5) is non-towered and unattended, so pilots should expect no on-field air traffic control or staffed operations support. Coordination for arrivals and departures relies on standard non-towered procedures.
Where is customs available near 1S5?
Sunnyside Municipal (1S5) has no customs service on site. The nearest customs facility is WA24, located about 39.57 nm away, so international arrivals must be routed accordingly.