PADU · Tom Madsen (Dutch Harbor) Airport

UNALASKA, ALASKA · MEDIUM AIRPORT · SCHEDULED SERVICE

Elevation ft

Runway

4,500

Longest ft · 13/31

53.90N

166.54W

Tom Madsen (Dutch Harbor) Airport serves Unalaska, Alaska at 22 ft elevation with its longest runway, 13/31, at 4,500 by 100 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.

Open PADU in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
13/31	4,500 × 100 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 22 ft is about 15°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.

Conditions	Density altitude	Takeoff est.	Landing est.	Landing × 1.5
Standard day (ISA, 15°C)	22 ft	2,442 ft	2,112 ft	3,168 ft
Warm day (ISA +10)	1,222 ft	2,676 ft	2,239 ft	3,358 ft
Hot day (ISA +20)	2,422 ft	2,910 ft	2,366 ft	3,548 ft
35°C afternoon	2,427 ft	2,911 ft	2,366 ft	3,549 ft

Planning aid only. Even on a 35°C afternoon the longest runway (13/31, 4,500 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,549 ft needed). The percentages are a generic rule of thumb applied to one reference airplane, not certified performance data for any specific aircraft, and the runway size categories describe the runway, not your airplane's suitability. Verify with the approved flight manual before every flight.

03Nearby fields with 5,000 ft or more

Useful as alternates, as fuel stops when the price at PADU is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
PACD Cold Bay Airport	154 nm NE	10,179 ft
PASN St Paul Island Airport	233 nm NW	6,500 ft
PADK Adak Airport	385 nm W	7,790 ft
PADL Dillingham Airport	408 nm NE	6,400 ft
PAKN King Salmon Airport	436 nm NE	8,901 ft
PABE Bethel Airport	440 nm N	6,400 ft

04Jet A prices and FBOs at PADU

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at PADU, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at PADU or read what a fuel stop actually saves.

All Alaska airports · Airport directory · Open JetDesk