While flying in an airplane with a heart condition is allowed, there are some risks. Flying should not be done for at least 2 weeks after a heart attack or other serious condition, according to WebMD.
Heart conditions may worsen with air travel. The biggest risk factor is the passenger getting a blood clot, as stated by WebMD. If the person has a pacemaker or other device to regulate the heartbeat, he or she should take precautions when going through security and ask to be searched by hand instead of with the metal detectors as they could interfere with the mechanism. People with heart medications should be checked and cleared by a doctor before taking any flight.