Nonstop flight route between Fort Collins/Loveland, Colorado, United States and Alton, Illinois, United States:
Departure Airport:
(40°27'6"N by 105°0'41"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from FNL to ALN:
802.18 miles (1,290.98 km)
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- About this route
- FNL Airport Information
- ALN Airport Information
- Facts about FNL
- Facts about ALN
- Map of Nearest Airports to FNL
- List of Nearest Airports to FNL
- Map of Furthest Airports from FNL
- List of Furthest Airports from FNL
- 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 Fort Collins-Loveland Municipal Airport (FNL), Fort Collins/Loveland, Colorado, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 802 miles (or 1,291 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 Fort Collins-Loveland Municipal 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: | FNL / KFNL |
| Airport Name: | Fort Collins-Loveland Municipal Airport |
| Location: | Fort Collins/Loveland, Colorado, United States |
| GPS Coordinates: | 40°27'6"N by 105°0'41"W |
| Area Served: | Fort Collins / Loveland, Colorado |
| Operator/Owner: | Fort Collins & Loveland |
| Airport Type: | Public |
| Elevation: | 5016 feet (1,529 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from FNL |
| More Information: | FNL 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 Fort Collins-Loveland Municipal Airport (FNL):
- As per Federal Aviation Administration records, the airport had 31,094 passenger boardings in calendar year 2008, 31,079 enplanements in 2009, and 35,671 in 2010.
- The furthest airport from Fort Collins-Loveland Municipal Airport (FNL) is Sir Gaëtan Duval Airport (RRG), which is located 10,850 miles (17,462 kilometers) away in Rodrigues Island, Mauritius.
- Because of Fort Collins-Loveland Municipal Airport's high elevation of 5,016 feet, planes must typically fly at a faster airspeed in order to takeoff or land at FNL. Combined with a high temperature, this could make FNL a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Fort Collins-Loveland Municipal Airport (FNL) has 2 runways.
- The airport is situated west of Interstate 25 and Denver is located about 55 miles south.
- Fort Collins–Loveland Municipal Airport covers an area of 1,065 acres at an elevation of 5,016 feet above mean sea level.
- The closest airport to Fort Collins-Loveland Municipal Airport (FNL) is Greeley-Weld County Airport (GXY), which is located only 20 miles (32 kilometers) E of FNL.
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 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.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 19.92 miles (32.06 km) E | Greeley-Weld County Airport (GXY) | Greeley, Colorado, United States |     |
| 2 | 30.66 miles (49.35 km) SSW | Boulder Municipal Airport (WBU) | Boulder, Colorado, United States | |
| 3 | 37.93 miles (61.05 km) S | Rocky Mountain Metropolitan Airport (BJC) | Denver, Colorado, United States | |
| 4 | 44.53 miles (71.66 km) SSE | Denver International Airport (DEN) | Denver, Colorado, United States | |
| 5 | 47.66 miles (76.71 km) N | Francis E. Warren Air Force Base (FEW) | Cheyenne, Wyoming, United States | |
| 6 | 49.74 miles (80.04 km) NNE | Cheyenne Regional Airport (CYS) | Cheyenne, Wyoming, United States | |
| 7 | 61.54 miles (99.03 km) S | Centennial Airport (APA) | Arapahoe County, Colorado, United States | |
| 8 | 68.79 miles (110.71 km) NNW | Laramie Regional Airport (LAR) | Laramie, Wyoming, United States | |
| 9 | 96.19 miles (154.80 km) E | Colorado Plains Regional Airport (AKO) | Akron, Colorado, United States | |
| 10 | 97.58 miles (157.04 km) W | Steamboat Springs Airport (SBS) | Steamboat Springs, Colorado, United States | |
| 11 | 101.32 miles (163.06 km) S | United States Air Force Academy (AFF) | Colorado Springs, Colorado, United States | |
| 12 | 109.71 miles (176.57 km) SW | Lake County Airport (LXV) | Leadville, Colorado, United States | |
| 13 | 114.93 miles (184.96 km) S | City of Colorado Springs Municipal Airport (COS) | Colorado Springs, Colorado, United States | |
| 14 | 115.08 miles (185.21 km) ENE | Sidney Municipal Airport (SNY) | Sidney, Nebraska, United States | |
| 15 | 115.30 miles (185.56 km) WSW | Eagle County Regional Airport (EGE) | Eagle, Colorado (near Vail), United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,850.45 miles (17,462.07 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,718.61 miles (17,249.89 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,686.64 miles (17,198.43 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,666.04 miles (17,165.28 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,503.85 miles (16,904.27 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,386.30 miles (16,715.09 km) ESE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,381.89 miles (16,707.99 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 10,342.26 miles (16,644.21 km) ESE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,270.30 miles (16,528.41 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,232.71 miles (16,467.90 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 10,225.25 miles (16,455.90 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 10,212.14 miles (16,434.81 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,203.33 miles (16,420.62 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 14 | 10,195.08 miles (16,407.35 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 15 | 10,183.55 miles (16,388.80 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 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 | |