KTXW · Mid Valley International Airport

WESLACO, TEXAS · SMALL AIRPORT

Elevation ft

Runway

4,998

Longest ft · 13/31

26.18N

97.97W

Mid Valley International Airport serves Weslaco, Texas at 70 ft elevation with its longest runway, 13/31, at 4,998 by 70 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.

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01Runways

Runway	Length × width	Surface	Lighting
13/31	4,998 × 70 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 70 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)	70 ft	2,452 ft	2,117 ft	3,176 ft
Warm day (ISA +10)	1,270 ft	2,686 ft	2,244 ft	3,366 ft
Hot day (ISA +20)	2,470 ft	2,920 ft	2,371 ft	3,556 ft
35°C afternoon	2,487 ft	2,923 ft	2,372 ft	3,559 ft

Planning aid only. Even on a 35°C afternoon the longest runway (13/31, 4,998 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,559 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 KTXW is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KMFE McAllen Miller International Airport	14 nm W	7,120 ft
KHRL Valley International Airport	17 nm E	9,400 ft
KEBG South Texas International at Edinburg Airport	18 nm NW	5,000 ft
KBRO Brownsville South Padre Island International Airport	34 nm SE	7,399 ft
KPIL Port Isabel Cameron County Airport	34 nm E	8,001 ft

04Jet A prices and FBOs at KTXW

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KTXW, 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 KTXW or read what a fuel stop actually saves.

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