Nonstop flight route between St. Thomas, Ontario, Canada and Mount Vernon, Illinois, United States:
Departure Airport:
(42°46'12"N by 81°6'34"W)
Arrival Airport:
(38°19'23"N by 88°51'30"W)
Distance from YQS to MVN:
509.45 miles (819.87 km)
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Jump to:
- About this route
- YQS Airport Information
- MVN Airport Information
- Facts about YQS
- Facts about MVN
- Map of Nearest Airports to YQS
- List of Nearest Airports to YQS
- Map of Furthest Airports from YQS
- List of Furthest Airports from YQS
- Map of Nearest Airports to MVN
- List of Nearest Airports to MVN
- Map of Furthest Airports from MVN
- List of Furthest Airports from MVN
About this route:
A direct, nonstop flight between St. Thomas Municipal Airport (YQS), St. Thomas, Ontario, Canada and Mt. Vernon Airport (MVN), Mount Vernon, Illinois, United States would travel a Great Circle distance of 509 miles (or 820 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between St. Thomas Municipal Airport and Mt. Vernon Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | YQS / CYQS |
| Airport Name: | St. Thomas Municipal Airport |
| Location: | St. Thomas, Ontario, Canada |
| GPS Coordinates: | 42°46'12"N by 81°6'34"W |
| Operator/Owner: | Municipality of St. Thomas |
| Airport Type: | Public |
| Elevation: | 779 feet (237 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from YQS |
| More Information: | YQS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | MVN / KMVN |
| Airport Name: | Mt. Vernon Airport |
| Location: | Mount Vernon, Illinois, United States |
| GPS Coordinates: | 38°19'23"N by 88°51'30"W |
| Operator/Owner: | Mount Vernon Airport Authority |
| Airport Type: | Public |
| Elevation: | 480 feet (146 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from MVN |
| More Information: | MVN Maps & Info |
Facts about St. Thomas Municipal Airport (YQS):
- The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency.
- The closest airport to St. Thomas Municipal Airport (YQS) is London international Airport (YXU), which is located only 18 miles (29 kilometers) N of YQS.
- There is one flight training school operating out of the airport, in addition to numerous agricultural aircraft in the summer.
- Because of St. Thomas Municipal Airport's relatively low elevation of 779 feet, planes can take off or land at St. Thomas Municipal Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- St. Thomas Municipal Airport (YQS) has 3 runways.
- The furthest airport from St. Thomas Municipal Airport (YQS) is Margaret River Airport (MGV), which is located 11,370 miles (18,298 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Mt. Vernon Airport (MVN):
- The furthest airport from Mt. Vernon Airport (MVN) is Margaret River Airport (MGV), which is located 11,070 miles (17,815 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Mt. Vernon Airport (MVN) is Salem–Leckrone Airport (SLO), which is located 23 miles (37 kilometers) NNW of MVN.
- Because of Mt. Vernon Airport's relatively low elevation of 480 feet, planes can take off or land at Mt. Vernon Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Mt. Vernon Airport (MVN) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 18.30 miles (29.44 km) N | London international Airport (YXU) | London, Ontario, Canada |     |
| 2 | 40.89 miles (65.80 km) NNW | Centralia/James T. Field Memorial Aerodrome (YCE) | Centralia, Ontario, Canada | |
| 3 | 58.96 miles (94.88 km) WSW | Chatham-Kent Airport (XCM) | Chatham-Kent, Ontario, Canada | |
| 4 | 60.32 miles (97.07 km) NE | Region of Waterloo International Airport (YKF) | Waterloo Regional Municipality, Ontario, Canada | |
| 5 | 62.78 miles (101.03 km) WNW | Sarnia (Chris Hadfield) Airport (YZR) | Sarnia, Ontario, Canada | |
| 6 | 65.61 miles (105.59 km) ENE | John C. Munro Hamilton International Airport (YHM) | Hamilton, Ontario, Canada | |
| 7 | 67.28 miles (108.28 km) SE | Erie International Airport (ERI) | Erie, Pennsylvania, United States | |
| 8 | 71.73 miles (115.44 km) SSE | Northeast Ohio Regional Airport (JFN) | Ashtabula, Ohio, United States | |
| 9 | 72.55 miles (116.76 km) W | St. Clair County International Airport (PHN) | Port Huron, Michigan, United States | |
| 10 | 76.40 miles (122.95 km) S | Willoughby Lost Nation Municipal Airport (LNN) | Willoughby, Ohio, United States | |
| 11 | 85.46 miles (137.54 km) SSW | Cuyahoga County Airport (CGF) | Cleveland, Ohio, United States | |
| 12 | 88.36 miles (142.20 km) W | Selfridge Air National Guard Base (MTC) | Mount Clemens, Michigan, United States | |
| 13 | 91.32 miles (146.96 km) SSE | Port Meadville Airport (MEJ) | Meadville, Pennsylvania, United States | |
| 14 | 91.39 miles (147.08 km) SSW | Cleveland Burke Lakefront Airport (BKL) | Cleveland, Ohio, United States | |
| 15 | 95.35 miles (153.46 km) E | Chautauqua County/Dunkirk Airport (DKK) | Dunkirk, New York, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,369.97 miles (18,298.15 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,345.99 miles (18,259.55 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,337.84 miles (18,246.44 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,320.03 miles (18,217.78 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,287.85 miles (18,165.99 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,262.27 miles (18,124.83 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,252.14 miles (18,108.52 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,245.11 miles (18,097.21 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 11,241.02 miles (18,090.62 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,197.08 miles (18,019.91 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,130.47 miles (17,912.72 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,101.59 miles (17,866.23 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,085.72 miles (17,840.69 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 11,082.48 miles (17,835.48 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,048.96 miles (17,781.54 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.80 miles (36.69 km) NNW | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 2 | 40.14 miles (64.59 km) SSW | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 3 | 43.33 miles (69.73 km) SSW | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 4 | 45.23 miles (72.79 km) NW | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 55.04 miles (88.58 km) WNW | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 6 | 72.26 miles (116.30 km) WNW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 7 | 74.25 miles (119.49 km) ENE | Lawrenceville–Vincennes International Airport (LWV) | Lawrenceville, Illinois, United States | |
| 8 | 74.75 miles (120.30 km) ESE | Evansville Regional Airport (EVV) | Evansville, Indiana, United States | |
| 9 | 75.07 miles (120.81 km) ENE | O'Neal Airport (OEA) | Vincennes, Indiana, United States | |
| 10 | 75.13 miles (120.92 km) WNW | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 11 | 81.96 miles (131.90 km) ENE | Ed-Air Airport (OTN) | Oaktown, Indiana, United States | |
| 12 | 85.26 miles (137.21 km) SSW | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 85.65 miles (137.84 km) NNE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 86.34 miles (138.95 km) WNW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States | |
| 15 | 87.39 miles (140.65 km) S | Barkley Regional Airport (PAH) | Paducah, Kentucky, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,069.87 miles (17,815.18 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,047.93 miles (17,779.87 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,025.48 miles (17,743.75 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,021.28 miles (17,736.99 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,996.23 miles (17,696.67 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,980.58 miles (17,671.49 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,971.53 miles (17,656.93 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,969.31 miles (17,653.34 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,945.20 miles (17,614.55 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,934.65 miles (17,597.56 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,926.46 miles (17,584.39 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,915.31 miles (17,566.44 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,881.30 miles (17,511.72 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,881.20 miles (17,511.56 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,874.58 miles (17,500.89 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |