Nonstop flight route between Alton, Illinois, United States and Calgary, Alberta, Canada:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(51°7'21"N by 114°0'47"W)
Distance from ALN to YYC:
1,433.25 miles (2,306.59 km)
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Jump to:
- About this route
- ALN Airport Information
- YYC Airport Information
- Facts about ALN
- Facts about YYC
- 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 YYC
- List of Nearest Airports to YYC
- Map of Furthest Airports from YYC
- List of Furthest Airports from YYC
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Calgary International Airport (YYC), Calgary, Alberta, Canada would travel a Great Circle distance of 1,433 miles (or 2,307 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 Calgary International 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: | YYC / CYYC |
| Airport Name: | Calgary International Airport |
| Location: | Calgary, Alberta, Canada |
| GPS Coordinates: | 51°7'21"N by 114°0'47"W |
| Area Served: | Calgary, Alberta, Canada |
| Operator/Owner: | Transport Canada |
| Airport Type: | Public |
| Elevation: | 3606 feet (1,099 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from YYC |
| More Information: | YYC Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
Facts about Calgary International Airport (YYC):
- Decommissioned runways
- The closest airport to Calgary International Airport (YYC) is Banff Airport (YBA), which is located 66 miles (107 kilometers) W of YYC.
- The terminal has four concourses, one of which is subdivided into two wings, one wing to accommodate international flights, and another wing to accommodate international flights to the United States utilizing the airport's US border pre-clearance facilities.
- Calgary International Airport (YYC) has 4 runways.
- Comprising gates 1–19, Concourse A is used mostly for domestic outbound flights, although US-bound flights and other international flights sometimes depart from the A-gates.
- The furthest airport from Calgary International Airport (YYC) is Tôlanaro Airport (FTU), which is located 10,372 miles (16,692 kilometers) away in Tôlanaro, Madagascar.
- There are only a few ground handling companies in Calgary but each provides different services to the airlines they serve.
- Air Canada and Air Canada Express operations at the Calgary International Airport.
- WestJet TAC is the sole provider of ground handling services for WestJet at Calgary International Airport.
| 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 | 66.42 miles (106.90 km) W | Banff Airport (YBA) | Banff, Alberta, Canada | |
| 2 | 73.40 miles (118.12 km) N | Red Deer Regional Airport (YQF) | Red Deer, Alberta, Canada | |
| 3 | 98.02 miles (157.75 km) NNW | Rocky Mountain House Airport (YRM) | Rocky Mountain House, Alberta, Canada | |
| 4 | 98.05 miles (157.79 km) WSW | Fairmont Hot Springs Airport (YCZ) | Fairmont Hot Springs, British Columbia, Canada | |
| 5 | 102.74 miles (165.35 km) S | Cowley Airport (YYM) | Cowley, Alberta, Canada | |
| 6 | 110.69 miles (178.13 km) S | Pincher Creek Airport (WPC) | Pincher Creek, Alberta, Canada | |
| 7 | 116.14 miles (186.91 km) SSE | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 8 | 128.36 miles (206.57 km) ENE | Coronation Airport (YCT) | Coronation, Alberta, Canada | |
| 9 | 130.24 miles (209.60 km) SW | Canadian Rockies International Airport (YXC) | Cranbrook, British Columbia, Canada | |
| 10 | 137.36 miles (221.07 km) ESE | CFB Suffield (YSD) | Suffield, Alberta, Canada | |
| 11 | 152.25 miles (245.03 km) N | Edmonton International Airport (YEG) | Edmonton, Alberta, Canada | |
| 12 | 153.42 miles (246.91 km) NNW | Drayton Valley Industrial Airport (YDC) | Drayton Valley, Alberta, Canada | |
| 13 | 160.87 miles (258.89 km) ENE | Vermilion Airport (YVG) | Vermilion, Alberta, Canada | |
| 14 | 163.35 miles (262.89 km) ESE | Medicine Hat Airport (YXH) | Medicine Hat, Alberta, Canada | |
| 15 | 177.23 miles (285.22 km) NE | Wainwright Aerodrome (YWV) | Wainwright, Alberta, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,372.25 miles (16,692.47 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,300.19 miles (16,576.50 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,291.70 miles (16,562.84 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 4 | 10,272.40 miles (16,531.78 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,268.81 miles (16,526.00 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,264.97 miles (16,519.83 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 10,160.84 miles (16,352.25 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,152.58 miles (16,338.95 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 9 | 10,147.37 miles (16,330.57 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 10 | 10,145.85 miles (16,328.13 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 11 | 10,138.64 miles (16,316.52 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 12 | 10,113.91 miles (16,276.71 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 13 | 10,111.27 miles (16,272.48 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 14 | 10,106.05 miles (16,264.08 km) ESE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 15 | 10,102.60 miles (16,258.51 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |