Airports / Alaska / UGI
San Juan /Uganik/ Seaplane Base.
San Juan, Alaska. A private-aviation gateway on the Bravo register.
WSJ
IATA UGI
0
Operators based
n/a
Elevation ft
Field standing
8 nm
To the nearest alternate
West Point Village Seaplane Base (KWP), 6 fields within 50 nm.
Overview
San Juan /Uganik/ Seaplane Base (UGI) is a seaplane base serving San Juan, Alaska. Scheduled carriers operate here, and the field also sees regular private and charter activity.
While no charter operators list UGI as their home base, the field is reachable for repositioned charter aircraft from nearby bases. The closest alternate fields are West Point Village Seaplane Base (KWP, 8 nm), Port Bailey Seaplane Base (KPY, 15 nm), and Zachar Bay Seaplane Base (KZB, 17 nm). The field has a single 10,000-foot unpaved runway, long enough for charter aircraft up to turboprops.
Trip costs from UGI are driven by the aircraft category flown and how far it must reposition. Browse operators flying from the area or estimate a trip cost from UGI to plan your flight.
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Field capability
ICAO
WSJ
IATA
UGI
FAA / Local
WSJ
Elevation
n/a
Coordinates
57.7304° N · 153.3210° W
Airspace
G · GolfClass G, GolfUncontrolled field, no tower. Pilots self-announce and sequence themselves on the common traffic advisory frequency.Source: FAA NASR class airspace
Size
Seaplane
Scheduled svc
Yes
Runways & aircraft access
1 runway
longest 10,000 ft
- N/S10,000 ft × 2000 ftWaterUnlit
Which aircraft can operate here
vs longest runway 10,000 ft
UGI's 10,000 ft runway typically supports charter aircraft up to turboprops.
- Turboprop3,000 ft
- Light Jet3,500 ft
- Midsize Jet4,500 ft
- Super-Midsize Jet5,000 ft
- Heavy Jet5,500 ft
- VIP Airliner6,000 ft
Class minimums are sea-level planning rules of thumb. A specific aircraft's balanced-field length varies with weight, temperature, and field elevation. Confirm performance with the operator.
Access & alternates
Closest alternate fields by great-circle distance, every listing links to its own field brief.
- 8nmKWPWest Point Village Seaplane BaseWest Point
- 15nmKPYPort Bailey Seaplane BasePort Bailey
- 17nmKZBZachar Bay Seaplane BaseZachar Bay
- 18nmORIPort Lions AirportPort Lions
- 22nmAOSAmook Bay Seaplane BaseAmook Bay
- 24nmKLNLarsen Bay AirportLarsen Bay
Location
Open the full mapWSJ · San Juan /Uganik/ Seaplane Base · San Juan, AK
Flight times from here
Approximate nonstop block times from UGI on a typical midsize charter jet. Faster classes trim these; add positioning and taxi for the real schedule.
| Destination | Distance | Block time |
|---|---|---|
| Anchorage (ANC) | 231 nm | 56m |
| Seattle (SEA) | 1,273 nm | 3h 22m |
| San Francisco (SFO) | 1,711 nm | 4h 23m |
| Jackson Hole (JAC) | 1,789 nm | 4h 34m |
| Salt Lake City (SLC) | 1,870 nm | 4h 45m |
| Los Angeles (VNY) | 1,987 nm | 5h 1m |
| Las Vegas (LAS) | 1,990 nm | 5h 2m |
| Vail / Eagle (EGE) | 2,078 nm | 5h 14m |
Common questions
- What size private jets can use UGI?
- San Juan /Uganik/ Seaplane Base's longest runway is 10,000 ft, which typically supports charter aircraft up to turboprops. Lighter classes (turboprops, light and midsize jets) operate comfortably; confirm exact performance for a specific tail with the operator, since balanced-field length shifts with weight, temperature, and elevation.
- What is the longest runway at UGI?
- San Juan /Uganik/ Seaplane Base has one runway; the longest measures 10,000 ft.
- What is the nearest major airport to UGI?
- The closest alternate is West Point Village Seaplane Base (KWP), about 8 nm away, followed by Port Bailey Seaplane Base (KPY) at 15 nm. Operators often position aircraft between these fields depending on ramp space and availability.
- How long is a flight from UGI to major cities?
- Typical block times on a midsize jet: Anchorage about 56m (231 nm), Seattle about 3h 22m (1,273 nm), San Francisco about 4h 23m (1,711 nm). Faster classes trim these times; add positioning and taxi for the real schedule.