Nonstop flight route between Peterborough, Ontario, Canada and Alton, Illinois, United States:
Departure Airport:
(44°13'50"N by 78°21'47"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from YPQ to ALN:
706.76 miles (1,137.42 km)
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- About this route
- YPQ Airport Information
- ALN Airport Information
- Facts about YPQ
- Facts about 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
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Peterborough Airport (YPQ), Peterborough, Ontario, Canada and St. Louis Regional Airport (ALN), Alton, Illinois, United States 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 Peterborough Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival 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 |
Facts about Peterborough Airport (YPQ):
- The closest airport to Peterborough Airport (YPQ) is Oshawa Municipal Airport (YOO), which is located 34 miles (55 kilometers) SW of YPQ.
- 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 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.
- Peterborough Airport (YPQ) has 2 runways.
- Seneca College will have its aviation programs relocated to Peterborough Airport, after their former airport is slated to close.
- The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency.
Facts about St. Louis Regional Airport (ALN):
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- St. Louis Regional Airport (ALN) has 2 runways.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
| 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 | |
| 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 | |