I will be flying from America to Japan, then the Philippines next week. Will my I-phone 8 work out over the Pacific Ocean? Or just turn it off to save roaming charges?

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    Welcome to TSE. Can you be more specific as to what you mean by "work," and what airline(s) you will be flying? You probably won't be able to make voice calls, you probably will be able to buy Internet access over WiFi, and you certainly should be able to use it offline.
    – choster
    Jul 16 '19 at 19:59
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    Are you asking whether your phone will literally work while you're on the plane, "over the Pacific Ocean"? Or are you asking whether your phone will work when you're on the ground in Japan and the Philippines? Jul 16 '19 at 20:21

Most air carriers prohibit the use of cell-based communications while in flight. A few carriers provide cell connectivity.

Many aircraft, however, contain wi-fi routers, which allow wi-fi connectivity while the airplane is in the air. Passengers usually must pay for this connection, although connections to the airline's own web page (perhaps including some entertainment streaming) may be provided without charge.

Certain types of communication, such a voice calls of any type, are still prohibited by almost all carriers.

Source: a lot of flying.

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    There has for at least 10 years or so been several air lines allowing mobile phone voice calls during flight. Some airlines have dropped their services again, since many passengers find it annonying. Jul 16 '19 at 20:11
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    Yes, there was a lot of consumer push-back. I'm not aware of any airlines now permitting voice calls. Jul 16 '19 at 20:17
  • It is not at all uncommon on European airlines. I haven't flown on many different airlines, but at least Virgin Atlantic and SAS allow voice calls on some of their flights. I wouldn't be surprised if it is offered on many Asian airlines as well. Jul 16 '19 at 20:25
  • @Tor-EinarJarnbjo Fair enough. I've amended the answer. Jul 16 '19 at 21:40
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    Your technical explanation is still incorrect. It doesn't matter if there are cell towers under your route. The air lines allowing voice calls, are operating their own cell phone network onboard the plane, to which your phone will connect. Jul 16 '19 at 21:43

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