Nonstop flight route between Kaltag, Alaska, United States and Boulder, Colorado, United States:
Departure Airport:
(64°19'8"N by 158°44'29"W)
Arrival Airport:
(40°2'21"N by 105°13'32"W)
Distance from KAL to WBU:
2,695.26 miles (4,337.59 km)
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Jump to:
- About this route
- KAL Airport Information
- WBU Airport Information
- Facts about KAL
- Facts about WBU
- Map of Nearest Airports to KAL
- List of Nearest Airports to KAL
- Map of Furthest Airports from KAL
- List of Furthest Airports from KAL
- Map of Nearest Airports to WBU
- List of Nearest Airports to WBU
- Map of Furthest Airports from WBU
- List of Furthest Airports from WBU
About this route:
A direct, nonstop flight between Kaltag Airport (KAL), Kaltag, Alaska, United States and Boulder Municipal Airport (WBU), Boulder, Colorado, United States would travel a Great Circle distance of 2,695 miles (or 4,338 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 large distance between Kaltag Airport and Boulder Municipal Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Kaltag Airport and Boulder Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | KAL / PAKV |
| Airport Name: | Kaltag Airport |
| Location: | Kaltag, Alaska, United States |
| GPS Coordinates: | 64°19'8"N by 158°44'29"W |
| Area Served: | Kaltag, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Northern Region |
| Airport Type: | Public |
| Elevation: | 181 feet (55 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from KAL |
| More Information: | KAL Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | WBU / KBDU |
| Airport Names: |
|
| Location: | Boulder, Colorado, United States |
| GPS Coordinates: | 40°2'21"N by 105°13'32"W |
| Operator/Owner: | City of Boulder |
| Airport Type: | Public |
| Elevation: | 5288 feet (1,612 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from WBU |
| More Information: | WBU Maps & Info |
Facts about Kaltag Airport (KAL):
- Kaltag Airport (KAL) currently has only 1 runway.
- The furthest airport from Kaltag Airport (KAL) is George Airport (GRJ), which is located 10,342 miles (16,644 kilometers) away in George, South Africa.
- The closest airport to Kaltag Airport (KAL) is Nulato Airport (NUL), which is located 35 miles (56 kilometers) NE of KAL.
- Because of Kaltag Airport's relatively low elevation of 181 feet, planes can take off or land at Kaltag 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 Boulder Municipal Airport (WBU):
- Boulder Municipal Airport is a public airport located 3 miles northeast of the central business district of Boulder, a city in Boulder County, Colorado, United States.
- The closest airport to Boulder Municipal Airport (WBU) is Rocky Mountain Metropolitan Airport (BJC), which is located only 11 miles (17 kilometers) SSE of WBU.
- The furthest airport from Boulder Municipal Airport (WBU) is Sir Gaëtan Duval Airport (RRG), which is located 10,881 miles (17,511 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "Boulder Municipal Airport", another name for WBU is "BDU".
- Boulder Municipal Airport (WBU) has 2 runways.
- Because of Boulder Municipal Airport's high elevation of 5,288 feet, planes must typically fly at a faster airspeed in order to takeoff or land at WBU. Combined with a high temperature, this could make WBU a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 34.61 miles (55.70 km) NE | Nulato Airport (NUL) | Nulato, Alaska, United States |     |
| 2 | 48.77 miles (78.48 km) NE | Koyukuk Airport (KYU) | Koyukuk, Alaska, United States | |
| 3 | 60.86 miles (97.94 km) ENE | Edward G. Pitka Sr. Airport (GAL) | Galena, Alaska, United States | |
| 4 | 68.84 miles (110.79 km) WSW | Unalakleet Airport (UNK) | Unalakleet, Alaska, United States | |
| 5 | 74.34 miles (119.65 km) W | Shaktoolik Airport (SKK) | Shaktoolik, Alaska, United States | |
| 6 | 83.30 miles (134.06 km) WNW | Koyuk Alfred Adams Airport (KKA) | Koyuk, Alaska, United States | |
| 7 | 93.69 miles (150.77 km) NW | Haycock Airport (HAY) | Haycock, Alaska, United States | |
| 8 | 94.21 miles (151.62 km) ESE | Bear Creek 3 Airport (BCC) | Bear Creek, Alaska, United States | |
| 9 | 101.22 miles (162.90 km) ENE | Ruby Airport (RBY) | Ruby, Alaska, United States | |
| 10 | 105.63 miles (170.00 km) NW | Granite Mountain Air Station (GMT) | Granite Mountain, Alaska, United States | |
| 11 | 106.48 miles (171.36 km) SSW | Grayling Airport (KGX) | Grayling, Alaska, United States | |
| 12 | 107.06 miles (172.30 km) WNW | Elim Airport (ELI) | Elim, Alaska, United States | |
| 13 | 115.25 miles (185.48 km) SSW | Shageluk Airport (SHX) | Shageluk, Alaska, United States | |
| 14 | 117.30 miles (188.77 km) WSW | St. Michael Airport (SMK) | St. Michael, Alaska, United States | |
| 15 | 118.07 miles (190.01 km) NE | Huslia Airport (HSL) | Huslia, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,341.89 miles (16,643.61 km) S | George Airport (GRJ) | George, South Africa | |
| 2 | 10,336.82 miles (16,635.46 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 3 | 10,332.80 miles (16,628.99 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,297.76 miles (16,572.60 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,257.21 miles (16,507.34 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,149.94 miles (16,334.70 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,104.35 miles (16,261.33 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 8 | 10,091.68 miles (16,240.95 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,037.55 miles (16,153.83 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 10 | 10,036.79 miles (16,152.61 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 11 | 10,036.24 miles (16,151.73 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 12 | 10,035.99 miles (16,151.31 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,028.66 miles (16,139.52 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 10,013.59 miles (16,115.27 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 15 | 10,013.59 miles (16,115.27 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10.70 miles (17.22 km) SSE | Rocky Mountain Metropolitan Airport (BJC) | Denver, Colorado, United States | |
| 2 | 30.66 miles (49.35 km) NNE | Fort Collins-Loveland Municipal Airport (FNL) | Fort Collins/Loveland, Colorado, United States | |
| 3 | 31.75 miles (51.10 km) ESE | Denver International Airport (DEN) | Denver, Colorado, United States | |
| 4 | 38.09 miles (61.31 km) SSE | Centennial Airport (APA) | Arapahoe County, Colorado, United States | |
| 5 | 41.64 miles (67.01 km) NE | Greeley-Weld County Airport (GXY) | Greeley, Colorado, United States | |
| 6 | 75.09 miles (120.85 km) SSE | United States Air Force Academy (AFF) | Colorado Springs, Colorado, United States | |
| 7 | 77.87 miles (125.32 km) NNE | Francis E. Warren Air Force Base (FEW) | Cheyenne, Wyoming, United States | |
| 8 | 80.13 miles (128.96 km) NNE | Cheyenne Regional Airport (CYS) | Cheyenne, Wyoming, United States | |
| 9 | 81.07 miles (130.47 km) SW | Lake County Airport (LXV) | Leadville, Colorado, United States | |
| 10 | 89.72 miles (144.39 km) SSE | City of Colorado Springs Municipal Airport (COS) | Colorado Springs, Colorado, United States | |
| 11 | 91.02 miles (146.48 km) NNW | Laramie Regional Airport (LAR) | Laramie, Wyoming, United States | |
| 12 | 92.54 miles (148.92 km) WNW | Steamboat Springs Airport (SBS) | Steamboat Springs, Colorado, United States | |
| 13 | 93.86 miles (151.05 km) WSW | Eagle County Regional Airport (EGE) | Eagle, Colorado (near Vail), United States | |
| 14 | 104.05 miles (167.45 km) WSW | Aspen–Pitkin County Airport (ASE) | Aspen, Colorado, United States | |
| 15 | 106.31 miles (171.09 km) E | Colorado Plains Regional Airport (AKO) | Akron, Colorado, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,880.86 miles (17,511.00 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,747.43 miles (17,296.27 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,714.36 miles (17,243.05 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,693.93 miles (17,210.17 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,525.99 miles (16,939.90 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,411.08 miles (16,754.97 km) ESE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,403.23 miles (16,742.33 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 10,366.39 miles (16,683.05 km) ESE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,296.70 miles (16,570.89 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,259.59 miles (16,511.16 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 10,250.65 miles (16,496.78 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 10,235.09 miles (16,471.74 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,217.23 miles (16,443.00 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,205.93 miles (16,424.82 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,198.56 miles (16,412.96 km) ESE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |