Airports / Wyoming / ECS
Mondell Field.
Newcastle, Wyoming · 4,174 ft elevation. 2 charter operators based here.
4.4/5
Google rating
5 ratings
2
Operators based
4,174
Elevation ft
Google rating
Google reviews
Based operators
Field elevation
Nearest alternate
Field standing
2 operators
Charter fleet based on the field
More resident charter operators than 58% of the 651 US fields with a based fleet on the register.
55 nm
To the nearest alternate
Ellsworth Air Force Base (RCA).
Overview
Mondell Field (KECS / ECS) is a general aviation field serving Newcastle, Wyoming. The airport sits 4,174 feet above sea level. With no scheduled airline service, it caters to private, charter, and general aviation traffic.
The airport anchors local charter capacity, Ace Transport Service, Inc and Sky Castle Aviation are based here. When weather or ramp space demands it, nearby options are Ellsworth Air Force Base (RCA, 55 nm), Rapid City Regional Airport (RAP, 55 nm), and Northeast Wyoming Regional Airport (GCC, 60 nm). With a single 5,310-foot paved runway, ECS can typically accommodate aircraft as large as super-midsize jets.
Charter pricing from ECS depends on aircraft category, positioning distance, and trip timing. Compare rated operators or run a route through the cost estimator to gauge pricing from Newcastle.
Run an FBO at KECS? Become the preferred FBO
Field capability
ICAO
KECS
IATA
ECS
FAA / Local
ECS
Elevation
4,174 ft
Coordinates
43.8838° N · 104.3142° 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
Small
Scheduled svc
No
Elevation vs WY fields
state range 3,939–7,285 ft
At 4,174 ft, ECS sits lower than 90% of the 29 Wyoming fields on the register.
Runways & aircraft access
1 runway
longest 5,310 ft
- 14/325,310 ft × 75 ftAsphaltLighted
Which aircraft can operate here
vs longest paved runway 5,310 ft
ECS's 5,310 ft paved runway typically supports charter aircraft up to super-midsize jets.
- 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, and at 4,174 ft this field's density altitude can extend the runway a jet actually needs on warm days. Confirm performance with the operator.
Based charter operators2
Access & alternates
Closest alternate fields by great-circle distance, every listing links to its own field brief.
- 55nmRCAEllsworth Air Force BaseRapid City
- 55nmRAPRapid City Regional AirportRapid City
- 60nmGCCNortheast Wyoming Regional AirportGillette
- 82nmCDRChadron Municipal AirportChadron
- 111nmCPRCasper-Natrona County International AirportCasper
- 125nmBFFWestern Neb. Rgnl/William B. Heilig AirportScottsbluff
Location
Open the full mapKECS · Mondell Field · Newcastle, WY
From the ramp
Google Places photography of Mondell Field, tap any frame to view full-screen, then cycle with the arrows or your keyboard.
Flight times from here
Approximate nonstop block times from ECS on a typical midsize charter jet. Faster classes trim these; add positioning and taxi for the real schedule.
| Destination | Distance | Block time |
|---|---|---|
| Denver (DEN) | 242 nm | 58m |
| Jackson Hole (JAC) | 279 nm | 1h 3m |
| Vail / Eagle (EGE) | 280 nm | 1h 3m |
| Aspen (ASE) | 302 nm | 1h 6m |
| Salt Lake City (SLC) | 387 nm | 1h 18m |
| Las Vegas (LAS) | 683 nm | 1h 59m |
| Scottsdale (SCF) | 711 nm | 2h 3m |
| Chicago (ORD) | 729 nm | 2h 6m |
Common questions
- What size private jets can use ECS?
- Mondell Field's longest paved runway is 5,310 ft, which typically supports charter aircraft up to super-midsize jets. 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 ECS?
- Mondell Field has one runway; the longest measures 5,310 ft on a paved surface and is lit for night operations.
- Are there charter operators based at ECS?
- Yes. 2 charter operators list Mondell Field as a home base, including Ace Transport Service, Inc, Sky Castle Aviation. You can also request quotes from operators that reposition aircraft into the field.
- What is the nearest major airport to ECS?
- The closest alternate is Ellsworth Air Force Base (RCA), about 55 nm away, followed by Rapid City Regional Airport (RAP) at 55 nm. Operators often position aircraft between these fields depending on ramp space and availability.
- How long is a flight from ECS to major cities?
- Typical block times on a midsize jet: Denver about 58m (242 nm), Jackson Hole about 1h 3m (279 nm), Vail / Eagle about 1h 3m (280 nm). Faster classes trim these times; add positioning and taxi for the real schedule.