Guanajuato International Airport (MMLO), GUA
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Guanajuato International Airport (MMLO), also known as BJX, sits near Silao at 5,956 feet elevation, making it the primary business aviation gateway for the Guanajuato region of Mexico. Traffic figures reported here reflect cross-border operations as tracked by the FAA TFMSC, not the airport's total movements. A single runway handles all fixed-wing traffic, with pavement long enough to support a wide range of business jet types operating into this high-altitude field.
Runways
Guanajuato International Airport has one paved runway, 13/31, 11,483 ft long and 148 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Source: FAA Form 5010.
Business aviation traffic
Guanajuato International Airport recorded 3,874 business aviation movements in 2025. Traffic peaks in November. Cross-border business aviation traffic at MMLO peaks in November, running noticeably higher than the quieter months of February and June.
Cross-border movements to the United States, FAA TFMSC count. Peak month November, 401 movements in 2025.
FAA TFMSC records a movement outside the United States only when the flight enters US airspace. This is cross-border traffic, not total activity at the airfield.
Source: FAA TFMSC, cross-border movements, 2025.
Climate
May is the warmest month, with average highs of 90.1°F, and January the coldest, at 76.3°F.
Weather station is 4.5 NM from the field. 1991–2020 climate normals.
Source: Servicio Meteorológico Nacional.
Alternates
Guanajuato International Airport has one alternate within 43 NM. The nearest alternate is Captain Rogelio Castillo National Airport (MMCY), 42.78 NM southeast.
Part of the Bajio area.
Source: Skystar calculation from official coordinates.
Skystar at MMLO
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.
$2,400.00 catering order at MMLO.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
How long is the runway at MMLO?
MMLO, Guanajuato International Airport, has a single runway designated 13/31 measuring 11,483 feet long and 148 feet wide. The surface is asphalt and the runway is paved along its full length. This length is substantial for a Mexican regional airport and supports a wide range of business jet and airliner traffic. Given the airport's high elevation, the extended pavement length helps compensate for reduced aircraft performance at altitude.
What is the field elevation at Guanajuato International Airport?
Guanajuato International Airport sits at 5,956 feet above mean sea level. This is a high-altitude field by regional standards, and crews should account for reduced engine and aerodynamic performance when planning takeoff and landing distances. High elevation also affects density altitude calculations, particularly during warmer months when maximum temperatures climb into the 80s Fahrenheit. Dispatchers planning operations into MMLO should factor elevation into weight and balance and runway performance calculations.
How much business aviation traffic does BJX handle?
BJX, Guanajuato International Airport, recorded 3,874 business aviation operations in 2025 out of 30,199 total annual operations, according to FAA TFMSC data. These figures represent cross-border traffic as tracked by the FAA rather than the airport's full movement count. Business aviation traffic varies by month, with November showing the highest volume at 401 operations and June the lowest at 277. The airport carries an ops tier of 1, reflecting its standing as a well-documented and frequently used facility for business aviation planning.
When is business aviation traffic busiest at MMLO?
Business aviation traffic at MMLO, Guanajuato International Airport, is highest in November, with 401 operations recorded in 2025 according to FAA TFMSC data. December and August follow with 356 operations each. The quieter months are June and February, with 277 and 296 operations respectively. This pattern reflects cross-border traffic as tracked by the FAA rather than the airport's total activity, and dispatchers should account for this seasonal concentration when planning schedules into the field.
What are typical maximum temperatures at Guanajuato International Airport?
Guanajuato International Airport sees maximum temperatures ranging from about 76 degrees Fahrenheit in January to a peak near 90 degrees Fahrenheit in May. Temperatures moderate through the summer months, sitting in the low 80s from June through September, before cooling again toward year end. Given the field's elevation of 5,956 feet, these temperatures combine with altitude to affect density altitude calculations for departing and arriving aircraft. Crews operating into MMLO during the warmer spring months should factor this combination into performance planning.