No airlines do not strictly require high school or college marks to hire a pilot. What matters most in practical aviation hiring is your pilot training credentials your flight hours your medical fitness and your performance during airline specific assessments.
In India for instance the basic educational requirement for commercial pilot training (CPL) is passing 10+2 with Physics Chemistry and Mathematics (PCM) or an equivalent qualification and meeting medical standards (Class 1 medical certificate). What really matters thereafter is successful completion of pilot training, passing DGCA exams accumulating flying hours, and staying medically fit.
Once you clear the eligibility bar (minimum qualifying marks and subjects, medical clearance, entrance exams), airlines will look closely at:
Your flying experience: Total flight hours especially in multi crew instrument rated aircraft and night flying. Airlines prefer pilots who’ve demonstrated competence, situational awareness decision-making under stress, and good aeronautical judgment in real flying conditions.
Performance in simulator and airline assessments: Many airlines have their own assessment centers or simulator checks where they evaluate a pilot candidate’s skill airmanship crew coordination cockpit resource management and aptitude. Excelling here often outweighs having just excellent school grades.
Your license and ratings: Holding a valid Commercial Pilot License (CPL) and ideally relevant type ratings or instrument ratings shows you're technically qualified and ready for airline operations. Continuous training recurrent checks and keeping your skillset sharp are critical.
Medical fitness and professionalism: Good Class 1 medical fitness language and communication skills, a disciplined approach and a professional attitude are very important to airlines. Even if someone had top grades academically but failed to maintain physical fitness or showed poor decision-making during training and evaluation they would likely be screened out.
Soft skills, attitude and adaptability: Airlines look for people who are resilient calm under pressure good communicators and team players and capable of constant learning. Good marks on paper don’t automatically translate into these attributes. Pilot training demands quick thinking situational awareness and ability to handle unplanned situations.
So while having decent academic credentials (especially PCM in Class 12 and passing marks) is a basic requirement “high marks per se are not the make or break factor. Once the eligibility criteria are met what really counts is training performance flight experience safety mindset flight hours and your performance during airline assessments and interviews.
If you're focused on becoming a pilot it’s far more effective to direct your energy into strong flight training building solid flying experience and honing decision-making and airmanship skills rather than stressing over whether you scored 90 % or 75 % in high school.