Nonstop flight route between Alton, Illinois, United States and Peterborough, Ontario, Canada:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(44°13'50"N by 78°21'47"W)
Distance from ALN to YPQ:
706.76 miles (1,137.42 km)
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Jump to:
- About this route
- ALN Airport Information
- YPQ Airport Information
- Facts about ALN
- Facts about YPQ
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to YPQ
- List of Nearest Airports to YPQ
- Map of Furthest Airports from YPQ
- List of Furthest Airports from YPQ
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Peterborough Airport (YPQ), Peterborough, Ontario, Canada would travel a Great Circle distance of 707 miles (or 1,137 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. Louis Regional Airport and Peterborough Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | YPQ / CYPQ |
| Airport Name: | Peterborough Airport |
| Location: | Peterborough, Ontario, Canada |
| GPS Coordinates: | 44°13'50"N by 78°21'47"W |
| Area Served: | Peterborough, Ontario |
| Operator/Owner: | City of Peterborough |
| Airport Type: | Public |
| Elevation: | 628 feet (191 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YPQ |
| More Information: | YPQ Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
- The 2,250 acres airfield sits at 544 ft MSL.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Peterborough Airport (YPQ):
- The furthest airport from Peterborough Airport (YPQ) is Margaret River Airport (MGV), which is located 11,425 miles (18,387 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Peterborough Airport's relatively low elevation of 628 feet, planes can take off or land at Peterborough 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 is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency.
- Peterborough Airport (YPQ) has 2 runways.
- The closest airport to Peterborough Airport (YPQ) is Oshawa Municipal Airport (YOO), which is located 34 miles (55 kilometers) SW of YPQ.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 33.96 miles (54.65 km) SW | Oshawa Municipal Airport (YOO) | Oshawa, Ontario, Canada | |
| 2 | 42.10 miles (67.76 km) E | Canadian Forces Base Trenton (YTR) | Trenton, Ontario, Canada | |
| 3 | 56.08 miles (90.25 km) WSW | Buttonville Airport (YKZ) | Buttonville, Ontario, Canada | |
| 4 | 66.16 miles (106.47 km) SW | Billy Bishop Toronto City Airport (YTZ) | Toronto, Ontario, Canada | |
| 5 | 69.18 miles (111.34 km) NW | Muskoka Airport (YQA) | Muskoka, Ontario, Canada | |
| 6 | 73.74 miles (118.67 km) WSW | Toronto Pearson International Airport (YYZ) | Mississauga, Ontario, Canada | |
| 7 | 76.72 miles (123.47 km) W | Canadian Forces Base Borden (YBN) | Borden, Ontario, Canada | |
| 8 | 82.34 miles (132.51 km) SSW | St. Catharines/Niagara District Airport (YCM) | St. Catharines, Ontario, Canada | |
| 9 | 82.90 miles (133.41 km) SSW | Niagara Falls International Airport (IAG) | Niagara Falls, New York, United States | |
| 10 | 84.21 miles (135.52 km) SSE | Greater Rochester International Airport (ROC) | Rochester, New York, United States | |
| 11 | 87.47 miles (140.76 km) E | Kingston Airport (YGK) | Kingston, Ontario, Canada | |
| 12 | 91.02 miles (146.49 km) SSW | Buffalo Niagara International Airport (BUF) | Buffalo, New York, United States | |
| 13 | 100.82 miles (162.25 km) NW | Parry Sound Area Municipal Airport (YPD) | Parry Sound, Ontario, Canada | |
| 14 | 107.22 miles (172.55 km) SW | John C. Munro Hamilton International Airport (YHM) | Hamilton, Ontario, Canada | |
| 15 | 108.78 miles (175.07 km) NW | Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI) | Frying Pan Island (near Parry Sound), Ontario, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,425.46 miles (18,387.46 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,402.17 miles (18,349.96 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 11,401.48 miles (18,348.86 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 11,374.91 miles (18,306.10 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,366.13 miles (18,291.97 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,313.47 miles (18,207.22 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 11,306.66 miles (18,196.25 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 11,299.27 miles (18,184.36 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,287.63 miles (18,165.63 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,227.63 miles (18,069.08 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,150.40 miles (17,944.78 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,135.83 miles (17,921.34 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 13 | 11,132.13 miles (17,915.39 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,106.03 miles (17,873.38 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,097.19 miles (17,859.16 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |