Nonstop flight route between Challis, Idaho, United States and Philadelphia, Pennsylvania, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from CHL to PHL:
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- About this route
- CHL Airport Information
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- Facts about CHL
- Facts about PHL
- Map of Nearest Airports to CHL
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- Map of Furthest Airports from CHL
- List of Furthest Airports from CHL
- Map of Nearest Airports to PHL
- List of Nearest Airports to PHL
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- List of Furthest Airports from PHL
About this route:
A direct, nonstop flight between Challis Airport (CHL), Challis, Idaho, United States and Philadelphia International Airport (PHL), Philadelphia, Pennsylvania, United States would travel a Great Circle distance of 2,001 miles (or 3,221 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 Challis Airport and Philadelphia International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | CHL / KLLJ | 
| Airport Names: | 
 | 
| Location: | Challis, Idaho, United States | 
| GPS Coordinates: | 44°31'24"N by 114°13'4"W | 
| Operator/Owner: | City of Challis | 
| Airport Type: | Public | 
| Elevation: | 5072 feet (1,546 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from CHL | 
| More Information: | CHL Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | PHL / KPHL | 
| Airport Name: | Philadelphia International Airport | 
| Location: | Philadelphia, Pennsylvania, United States | 
| GPS Coordinates: | 39°52'18"N by 75°14'27"W | 
| Area Served: | Delaware Valley | 
| Operator/Owner: | City of Philadelphia | 
| Airport Type: | Public | 
| Elevation: | 36 feet (11 meters) | 
| # of Runways: | 4 | 
| View all routes: | Routes from PHL | 
| More Information: | PHL Maps & Info | 
Facts about Challis Airport (CHL):
- Because of Challis Airport's high elevation of 5,072 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CHL. Combined with a high temperature, this could make CHL a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- In addition to being known as "Challis Airport", another name for CHL is "LLJ".
- The closest airport to Challis Airport (CHL) is Lemhi County Airport (SMN), which is located 45 miles (72 kilometers) NNE of CHL.
- The furthest airport from Challis Airport (CHL) is Pierrefonds Airport (ZSE), which is located 10,728 miles (17,265 kilometers) away in Saint-Pierre, Réunion.
- Challis Airport (CHL) currently has only 1 runway.
Facts about Philadelphia International Airport (PHL):
- One of the two newest terminal buildings at the airport, Concourse A West has a very modern and innovative design, made by Kohn Pedersen Fox, Pierce Goodwin Alexander & Linville, and Kelly/Maiello.
- In June 1943 I Fighter Command transferred jurisdiction of the airport to the Air Technical Service Command.
- Philadelphia International Airport (PHL) has 4 runways.
- The furthest airport from Philadelphia International Airport (PHL) is Margaret River Airport (MGV), which is located 11,734 miles (18,884 kilometers) away in Margaret River, Western Australia, Australia.
- US Airways became the dominant carrier at PHL during the 1980s and 1990s and shifted most of its hub operations from Pittsburgh to Philadelphia in 2003.
- Because of Philadelphia International Airport's relatively low elevation of 36 feet, planes can take off or land at Philadelphia International 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 second study, the PHL Capacity Enhancement Program has a much larger scope and is considering more drastic ways to increase runway capacity at PHL.
- The closest airport to Philadelphia International Airport (PHL) is Philadelphia Seaplane BaseChandler Field (PSQ), which is located only 3 miles (5 kilometers) WSW of PHL.




