i will be on an 18hr flight and will pass several timezones. how to determine prayer times. i cna see what country im flying over on the plane screen but i cant tell what time it is in that country because theres no wifi on plane to check. do i continue following UK prayer times as im from there

Ustadh AbdulAziz al-Haqqan

No, you do not follow UK times; ask as normally airplanes display or at least know the local timing of each zone. If you are not able to then estimate, but If you will land before the time ends, then you can combine and pray on land.