Saint Thomas Municipal Airport (CYQS), Ontario
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
St Thomas Municipal Airport (CYQS) serves the St Thomas area in Ontario, roughly 22 nautical miles from the nearest metro center, with London International Airport positioned about 16 nautical miles to the north. The field offers three paved asphalt runways, led by a 5,013-foot primary strip, along with two shorter crosswind options. Customs clearance is available on site under an AOE/15 designation, capping arriving groups at fifteen persons. Traffic data reported to the FAA reflects cross-border business aviation movements rather than the airport's total activity.
Runways
Saint Thomas Municipal Airport has three paved runways. The longest, 09/27, is 5,013 ft long and 100 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Customs
Saint Thomas Municipal 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
Saint Thomas Municipal Airport recorded 165 business aviation movements in 2025. Traffic peaks in July. Business aviation traffic at CYQS is concentrated in the summer and early fall, peaking in July and October, with minimal activity from November through February.
Cross-border movements to the United States, FAA TFMSC count. Peak month July, 33 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
Saint Thomas Municipal Airport averages 4.7 days above 90°F in July, 27.7 freeze days in January and 3.4 snow days in January. July is the warmest month, with average highs of 79.9°F, and January the coldest, at 29.1°F.
Weather station is 15.7 NM from the field. 1991–2020 climate normals.
Source: Environment and Climate Change Canada.
Nearby airfields
Saint Thomas Municipal Airport has four airfields within 41 NM. The closest is London International Airport (CYXU), 15.87 NM north.
Part of the Southwestern Ontario area.
Source: Skystar calculation from official coordinates.
Skystar at CYQS
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.
$1,200.00 catering order at CYQS.
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 is the primary runway length at CYQS?
St Thomas Municipal Airport (CYQS) offers a paved primary runway, 09/27, measuring 5,013 feet long and 100 feet wide. Two shorter crosswind runways are also available: 15/33 and 03/21, each roughly 2,610 feet long and 75 feet wide. All three surfaces are asphalt. This runway configuration accommodates most business aviation traffic seen at the field.
Does CYQS have customs clearance on site?
St Thomas Municipal Airport (CYQS) is designated as an AOE/15 customs facility, meaning clearance is available on site but limited to a maximum of fifteen persons per aircraft. Operators planning international arrivals should account for this passenger cap when coordinating a landing. The designation applies specifically to the customs process at CYQS rather than general airport access.
When is business aviation traffic busiest at St Thomas Municipal Airport?
Business aviation traffic at St Thomas Municipal Airport (CYQS) concentrates in the warmer months, with July recording the highest count at 33 operations and October following at 29. Activity drops sharply in the winter months, falling to single digits or zero between November and February. Dispatchers scheduling flights outside the July through October window should expect a much quieter field.
How much business aviation traffic does CYQS see annually?
CYQS recorded 165 business aviation operations against 395 total annual operations in 2025, according to FAA TFMSC data. Since the airport sits in Canada, this figure reflects cross-border traffic tracked by the FAA rather than the airport's full operational count. The field carries an ops tier of 2, indicating moderate business aviation activity relative to other terrains in the network.