السلام عليكم Ustaadh, where i live, the 10th of muharram is expected to be on a day where i have to catch a flight. But since the flight is midday, and the plane would have not travelled much, can I fast that day (breaking my fast on the plane)?

Ustadh AbdulAziz al-Haqqan

You can fast when you travel and u break your fast at maghrib time.