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Commercial jet aircraft typically cruise between 35,000 and 42,000 feet. Altitudes are selected based on winds, weather and weight. All things being equal, the higher altitudes produce better fuel economy.
Wiki User
∙ 16y ago
Wiki User
∙ 14y agoBeing that your question was placed in the Air Travel category, I assume you are speaking about airliners rather than military aircraft. Most large airliners have a service ceiling around 40,000 to 42,000 feet. This does not mean that they usually fly this high, only that this is the maximum altitude at which they are certified to fly. Smaller business jets such as the Gulfstream line have service ceilings in the range of 51,000 feet.
Military reconnaissance aircraft such as the U-2 and the SR-71, on the other hand, can reach altitudes in the 85,000 to 90,000 feet range.
Wiki User
∙ 14y agoCommercial jets operate at 40,000 feet ( Forty Grand) some Long Range Patrol craft of specialized type- USAF and other miitary and intelligence types- can operate at 60,000 feet with special enriched fuels. this is ideal height for photo-mapping intelligence. other details well .... hush Hush.
Wiki User
∙ 12y agoIt depends. The last flight i took the plane was about 35000ft in the air. Other have been at 37000ft. And on shorter flights they go up about 15000ft. I guess it depends on the distance of the flight and where other planes are in the sky at the time.
Wiki User
∙ 13y agoA commercial jet flies normally at about 30,000 feet (10 kilometres)
Wiki User
∙ 13y agoAbout 300,000 feet
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