Airport Elevation Comparator
Compare airport elevations and understand how altitude affects aviation operations, engine performance, and runway requirements.
Elevation Difference
Visual Comparison
Altitude Categories
Sea Level
< 500 ft
Low
500 - 2,000 ft
Moderate
2,000 - 5,000 ft
High
5,000 - 8,000 ft
Very High
> 8,000 ft
How Elevation Affects Aviation
- Thinner air at higher altitudes reduces engine performance and aerodynamic lift. Aircraft need higher ground speeds to generate the same lift, requiring longer runways for takeoff and landing.
- Density altitude increases with elevation and temperature. On hot days at high-altitude airports, effective altitude can be significantly higher than the field elevation, further reducing performance.
- Payload restrictions are common at high-altitude airports. Airlines may limit passengers, cargo, or fuel to ensure safe takeoff performance within the available runway length.
- Notable high-altitude airports include Daocheng Yading (DCY, 14,472 ft), Qamdo Bamda (BPX, 14,219 ft), and La Paz El Alto (LPB, 13,325 ft), all requiring specially trained pilots and extended runways.
Frequently Asked Questions
Why does elevation affect aircraft performance?
Higher elevation means lower air density, which reduces both engine thrust output and wing lift. Aircraft need longer runways to achieve takeoff speed, climb rates are reduced, and engines produce less power. For every 1,000 ft of elevation, takeoff distance increases by roughly 7%.
Which are the highest commercial airports in the world?
The highest commercial airports include Daocheng Yading (DCY) in China at 4,411 m (14,472 ft), Qamdo Bamda (BPX) at 4,334 m (14,219 ft), and La Paz El Alto (LPB) in Bolivia at 4,061 m (13,325 ft). These airports require specially rated aircraft and extended runways.
How does elevation affect cabin pressurization?
Aircraft cabins are pressurized to a cabin altitude of approximately 6,000-8,000 ft during cruise. At high-elevation airports, passengers may already be at or near cabin pressure altitude before boarding. The pressurization system works harder when departing from high-altitude airports.
What is density altitude?
Density altitude is the pressure altitude corrected for non-standard temperature. On a hot day at a high-elevation airport, the density altitude can be thousands of feet higher than the actual elevation, further degrading aircraft performance. Pilots calculate density altitude before every takeoff to ensure safe operations.
Methodology
Airport elevation data is sourced from OurAirports (public domain), which compiles official field elevation figures from aeronautical information publications. Elevation is measured in feet above mean sea level (AMSL), the aviation standard. The performance impact analysis uses the rule of thumb that takeoff distance increases by approximately 7% per 1,000 ft of elevation gain due to reduced air density. True airspeed also increases by about 2% per 1,000 ft compared to indicated airspeed.