How hot is too hot to fly?

How High Temperatures Effect Aircraft. Large jets, such as those from Boeing or Airbus, can operate in temperatures more than 120 degrees. However, extreme heat does make it difficult for those planes to take off. The problem is that airplanes fly through a combination of propulsion and what's known as “lift.”



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If you have a temperature of over 100 degrees Fahrenheit, you should avoid flying and traveling. Flying can intensify your fever making it more dangerous for you, but it's also a danger for the people around you.

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This includes those with cardiac failure, recent myocardial infarction (heart attack) or stroke, angina (chest pain) at rest, heart rate or rhythm disorders, uncontrolled arterial hypertension, severe anemia, sickle-cell anemia, acute mental disorders, epilepsy, and any serious or contagious diseases.

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Many other conditions could prevent an individual from flying. If you have a pre-existing condition like lung or heart disease, cancer or anemia, you'll want to consult your doctor for clearance it's okay to fly.

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10 ways to keep cool while flying
  1. Take a jacket or sweater. ...
  2. Be the early bird. ...
  3. Tell a flight attendant. ...
  4. Take a shower. ...
  5. Crash the gate. ...
  6. Dress in layers. ...
  7. Board last. ...
  8. Leave more than enough time between flights.


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But icing aside, cold air can help a plane take off and fly more efficiently. So why do planes perform better in cold weather? Simply, colder air is denser than warmer air, which contributes to engine performance and air lift.

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The term hard landing usually implies that the pilot still has total or partial control over the aircraft, as opposed to an uncontrolled descent into terrain (a crash). Hard landings can vary in their consequences, from mild passenger discomfort to vehicle damage, structural failure, injuries, and/or loss of life.

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If your blood pressure is higher than 120 over 80, seek medical advice before you travel.

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Your blood pressure could rise
The higher you are in the sky, the less oxygen your body will carry, and less oxygen means higher blood pressure. If you typically have a regular blood pressure or even a low blood pressure, this increase will likely have no effect on you.

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What can cause a cancellation? Flights may be canceled due to wind, precipitation, fog or low visibility, lightning, low clouds, or storms.

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