How can one determine prayer times during a flight lasting more than 16 hours, from Dubai (8 AM) to Los Angeles (1 PM)?

Prayer times are determined by the legal signs according to the location. If the time for Dhuhr prayer begins while on an airplane, it is permissible to perform it individually or combine it with Asr. The same applies to Maghrib with Isha. Fajr prayer is performed when its time begins. The estimation of prayer times on an airplane has been detailed in previous fatwas.