What Is Airplane Mode? What Happens If You Don't Put Your Phone in Airplane Mode?

Airplane mode is a feature found on phones and similar electronic devices that disables wireless communication connections. Commonly used during air travel, airplane mode prevents the device from connecting to a mobile network while allowing certain wireless connections to be turned back on manually afterward.
What Is Airplane Mode?
How Does Airplane Mode Work?
When airplane mode is enabled, the phone's cellular connection is turned off. This prevents the device from connecting to a mobile network, meaning cellular communication features such as calls and SMS are unavailable. However, the phone itself does not shut down, and offline features can still be used.
Which Connections Does Airplane Mode Turn Off?
Airplane mode generally disables the mobile network connection and, depending on the device model and operating system, may also initially turn off Wi-Fi and Bluetooth. When permitted by the airline, users can manually turn Wi-Fi or Bluetooth back on while airplane mode remains enabled.
The Difference Between Airplane Mode and Turning Off Your Phone
Turning off your phone completely stops the device from operating, whereas airplane mode only restricts certain wireless communication features. Therefore, you can still listen to music, watch videos, view photos, or use previously downloaded content while airplane mode is enabled.
Why Is Airplane Mode Used?
Preventing Potential Interference with Aircraft Systems
The main purpose of airplane mode is to help control the use of wireless communication features during a flight. Although modern aircraft are designed according to various standards to protect against potential electromagnetic effects from electronic devices, aviation regulations restrict device usage to minimize possible risks.
Keeping Wireless Signals Under Control
Phones use radio signals when searching for mobile networks or communicating with cell towers. Airplane mode, particularly by disabling the cellular connection, stops this communication and limits the device's use of wireless signals.
Following Phone Usage Rules During a Flight
Rules regarding the use of electronic devices on an aircraft may vary depending on the airline and flight conditions. Therefore, simply turning on airplane mode may not always be enough; passengers should also follow the instructions of the cabin crew and the airline's policies.

What Happens If You Don't Put Your Phone in Airplane Mode?
The Phone May Try to Connect to a Mobile Network
When a phone is not placed in airplane mode, it may continue searching for a mobile network and attempting to maintain a connection, particularly throughout the flight. Since access to cell towers is limited at high altitudes, the device may consume more power while searching for a connection.
Potential Issues Caused by Wireless Signals During a Flight
The signal from a single phone does not necessarily mean that it will cause a problem with the systems of a modern aircraft. However, specific rules are applied during flights because of the wireless signals emitted by numerous devices and the possibility of electromagnetic effects involving aviation communications. For this reason, passengers should follow the specified instructions regarding electronic device use.
Consequences of Not Following Airline Rules
Failing to follow the rules regarding electronic device use on an aircraft may result in a warning from the cabin crew. Since regulations can vary depending on the airline and country, passengers should follow the instructions provided during the flight.

Can You Use Your Phone While Airplane Mode Is On?
Yes. Airplane mode does not mean that your phone becomes completely unusable.
Using Wi-Fi in Airplane Mode
When an airline allows Wi-Fi use during a flight, Wi-Fi can usually be turned back on manually after enabling airplane mode. This may allow passengers to use the aircraft's in-flight internet service.
Using Bluetooth in Airplane Mode
Bluetooth may initially be turned off when airplane mode is enabled, but on many phones it can be manually turned back on afterward. Before using wireless headphones or similar accessories, passengers should follow the airline's rules.
Using Music and Video in Airplane Mode
Music, movies, TV shows, and games that do not require an internet connection can be used in airplane mode. Content downloaded in advance can be particularly convenient during long flights.
Using GPS in Airplane Mode
A GPS receiver is not the same thing as a mobile network connection. On some phones, GPS may continue to work while airplane mode is enabled. However, whether GPS works can vary depending on the device model, application, and flight conditions.
When Should You Turn Airplane Mode On and Off?
Turning on Airplane Mode Before Boarding
As a practical measure, enabling airplane mode before boarding or when instructed by the cabin crew helps keep the device's wireless connections under control throughout the flight.
Using Your Phone During Takeoff and Landing
Rules regarding electronic devices may be applied more strictly during takeoff and landing. Therefore, in addition to keeping airplane mode enabled, passengers should follow all instructions from the cabin crew regarding device usage.
Turning Off Airplane Mode After the Flight
Once the aircraft has landed safely and the cabin crew indicates that electronic devices can be used normally, airplane mode can be turned off to restore the phone's cellular and other wireless connections.