Yes, Airplane Mode Makes Your Phone Charge Faster — But It's Not Worth It

Airplane mode can make a phone charge a little faster by turning off wireless radios, but the boost is usually minor.

The bigger charging gains come from using a faster compatible charger, a better USB-C cable, or a Qi2 wireless charger.

The main tradeoff is that your phone loses normal functionality while airplane mode is on.

For most people, better charging hardware matters more than airplane mode for speeding up charging.