Montreal Mirabel International Airport (CYMX), Quebec
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Montreal Mirabel International Airport, identified by the ICAO code CYMX, sits roughly 20 nautical miles from the Montreal metro area in Quebec. The airport pairs a 12,000-foot primary runway with a secondary 8,852-foot runway, both concrete-surfaced, giving it the capacity to handle a broad mix of aircraft including business aviation and cargo traffic. Its AOE/15 and AOE / CARGO customs designations set it apart from nearby fields like Trudeau International and Saint-Hubert, offering onsite clearance paths for both passenger and freight operations under Canada's restricted customs framework.
Runways
Montreal Mirabel International Airport has two paved runways. The longest, 06/24, is 12,000 ft long and 200 ft wide, with a concrete surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Customs
Montreal Mirabel International Airport has Canada Border Services Agency clearance available onsite, under a restricted regime rather than general clearance. The terms that apply to a given flight must be confirmed before departure.
Source: CBSA list of airports of entry.
Business aviation traffic
Montreal Mirabel International Airport recorded 1,129 business aviation movements in 2025. Traffic peaks in July and August. Business aviation traffic at CYMX is concentrated in the summer and early fall, peaking from July through October.
Cross-border movements to the United States, FAA TFMSC count. Peak month July, 130 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
Montreal Mirabel International Airport averages 3.8 days above 90°F in July, 30.2 freeze days in January and 4.3 snow days in January. July is the warmest month, with average highs of 79.7°F, and January the coldest, at 22.1°F.
Weather station is 12.3 NM from the field. 1991–2020 climate normals.
Source: Environment and Climate Change Canada.
Nearby airfields
Montreal Mirabel International Airport has four airfields within 46 NM. The closest is Montreal / Pierre Elliott Trudeau International Airport (CYUL), 17.80 NM southeast.
Part of the Montreal area.
Source: Skystar calculation from official coordinates.
Skystar at CYMX
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 CYMX.
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
What customs clearance options are available at CYMX?
Montreal Mirabel International Airport carries an AOE/15 and AOE / CARGO designation, meaning customs processing is onsite but capped at fifteen persons for passenger clearance. Cargo operations have a separate customs pathway under the AOE / CARGO designation. Dispatchers arranging passenger clearance for larger groups need to confirm the fifteen-person limit fits their manifest before filing. Cargo flights are not subject to that same passenger cap. CYMX crews should plan clearance logistics around this dual structure rather than assuming a single standard customs process.
How long are the runways at Montreal Mirabel International Airport?
Montreal Mirabel International Airport, identified as CYMX, has two paved concrete runways available for operations. Runway 06/24 is the longer of the two at 12,000 feet, also matching the airport's listed maximum paved runway length. Runway 11/29 measures 8,852 feet. Both runways are 200 feet wide and surfaced in concrete, supporting a wide range of aircraft types. This runway length gives CYMX capacity for heavy long-haul aircraft alongside business aviation traffic.
When is business aviation traffic busiest at CYMX?
Business aviation traffic at CYMX, per FAA TFMSC data for 2025, peaks in July with 130 operations and stays elevated through August at 125 operations. Traffic tapers into the fall, with September and October still showing over 100 monthly operations each. The quietest months fall in winter, with January recording just 51 operations and March at 57. This pattern shows business aviation activity at Montreal Mirabel International Airport concentrated in the summer and early fall months. Dispatchers planning cross-border trips into CYMX should anticipate higher volumes during these peak months.
What is the annual traffic volume at Montreal Mirabel International Airport?
Montreal Mirabel International Airport recorded 11,125 total annual operations in 2025, according to FAA TFMSC cross-border traffic data. Of that total, 1,129 operations were business aviation flights, since CYMX traffic figures reflect cross-border activity seen by the FAA rather than the airport's full operational count. This places CYMX in ops tier 1, the highest traffic tier used in this data set. The figures give dispatchers a reference point for gauging relative congestion when scheduling operations at this Quebec airport.
How cold does it get at CYMX in winter, and how much snow accumulates?
Montreal Mirabel International Airport sees sustained cold in the core winter months. January averages 30.2 days below freezing with a maximum temperature around 22.1°F, while February and December show similarly high freezing-day counts. Snow accumulation of one inch or more is recorded on 4.3 days in January and 3.8 days in February, tapering by April. Crews operating into CYMX during winter should expect extended sub-freezing conditions and recurring snow days across December through February.