Nonstop flight route between St. Thomas, Ontario, Canada and Marshall, Texas, United States:
Departure Airport:
(42°46'12"N by 81°6'34"W)
Arrival Airport:
(32°31'14"N by 94°18'28"W)
Distance from YQS to ASL:
1,009.01 miles (1,623.85 km)
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- About this route
- YQS Airport Information
- ASL Airport Information
- Facts about YQS
- Facts about ASL
- 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 ASL
- List of Nearest Airports to ASL
- Map of Furthest Airports from ASL
- List of Furthest Airports from ASL
About this route:
A direct, nonstop flight between St. Thomas Municipal Airport (YQS), St. Thomas, Ontario, Canada and Harrison County Airport (ASL), Marshall, Texas, United States would travel a Great Circle distance of 1,009 miles (or 1,624 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 Harrison County 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: | ASL / KASL |
| Airport Name: | Harrison County Airport |
| Location: | Marshall, Texas, United States |
| GPS Coordinates: | 32°31'14"N by 94°18'28"W |
| Area Served: | Marshall, Texas |
| Operator/Owner: | Harrison County |
| Airport Type: | Public |
| Elevation: | 357 feet (109 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ASL |
| More Information: | ASL Maps & Info |
Facts about St. Thomas Municipal Airport (YQS):
- 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.
- St. Thomas Municipal Airport (YQS) has 3 runways.
- 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.
- The airport was purchased by the City of St.
- 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 Harrison County Airport (ASL):
- The furthest airport from Harrison County Airport (ASL) is Cocos (Keeling) Island Airport (CCK), which is located 10,865 miles (17,485 kilometers) away in Cocos Islands, Australia.
- Harrison County Airport (ASL) has 2 runways.
- Trans-Texas DC-3s stopped there until 1963.
- The closest airport to Harrison County Airport (ASL) is East Texas Regional Airport (GGG), which is located 25 miles (41 kilometers) WSW of ASL.
- Because of Harrison County Airport's relatively low elevation of 357 feet, planes can take off or land at Harrison County 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.
| 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 | 25.36 miles (40.81 km) WSW | East Texas Regional Airport (GGG) | Longview, Texas, United States | |
| 2 | 28.57 miles (45.97 km) E | Shreveport Regional Airport (SHV) | Shreveport, Louisiana, United States | |
| 3 | 32.81 miles (52.81 km) E | Shreveport Downtown Airport (DTN) | Shreveport, Louisiana, United States | |
| 4 | 37.60 miles (60.52 km) E | Barksdale Air Force Base (BAD) | Bossier City, Louisiana, United States | |
| 5 | 64.88 miles (104.42 km) W | Tyler Pounds Regional Airport (TYR) | Tyler, Texas, United States | |
| 6 | 67.03 miles (107.87 km) NNE | Texarkana Regional Airport (TXK) | Texarkana, Arkansas, United States | |
| 7 | 69.66 miles (112.11 km) SW | Cherokee County Airport (JKV) | Jacksonville, Texas, United States | |
| 8 | 79.95 miles (128.67 km) NE | Magnolia Municipal Airport (AGO) | Magnolia, Arkansas, United States | |
| 9 | 88.11 miles (141.79 km) WNW | Sulphur Springs Municipal Airport (SLR) | Sulphur Springs, Texas, United States | |
| 10 | 92.61 miles (149.04 km) SSW | Angelina County Airport (LFK) | Lufkin, Texas, United States | |
| 11 | 99.32 miles (159.83 km) ENE | South Arkansas Regional Airport at Goodwin Field (ELD) | El Dorado, Arkansas, United States | |
| 12 | 100.18 miles (161.22 km) E | Ruston Regional Airport (RSN) | Ruston, Louisiana, United States | |
| 13 | 101.62 miles (163.53 km) NW | Cox FieldCox Army Airfield (PRX) | Paris, Texas, United States | |
| 14 | 108.85 miles (175.18 km) WNW | Majors Airport (GVT) | Greenville, Texas, United States | |
| 15 | 114.79 miles (184.73 km) W | Terrell Municipal Airport (TRL) | Terrell, Texas, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,864.61 miles (17,484.86 km) SSW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 10,800.41 miles (17,381.53 km) ESE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 3 | 10,740.09 miles (17,284.45 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 4 | 10,721.37 miles (17,254.33 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 5 | 10,704.05 miles (17,226.45 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 6 | 10,703.29 miles (17,225.24 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 7 | 10,702.39 miles (17,223.79 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 8 | 10,699.54 miles (17,219.19 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 9 | 10,698.61 miles (17,217.70 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 10 | 10,698.32 miles (17,217.24 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 11 | 10,682.73 miles (17,192.14 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 12 | 10,679.59 miles (17,187.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 13 | 10,672.87 miles (17,176.27 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 14 | 10,666.89 miles (17,166.65 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 15 | 10,645.22 miles (17,131.78 km) W | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |