What Happens If You Don’t Use Airplane Mode ?

Have you ever wondered what would really happen if you forgot to put your phone in airplane mode during a flight? You’re not alone—many passengers aren’t entirely sure why they’re asked to use airplane mode in the first place. While some countries have relaxed their rules on in-flight phone usage, it’s still common practice to comply with the crew’s instructions. So, what’s the worst that could happen if you don’t follow this guideline? Turns out, the effects are less dramatic than you might think, but that doesn’t mean you should ignore the request. Here’s what you need to know.

The Impact of Not Using Airplane Mode

In general, you’re not likely to see the plane “fall out of the sky” if you forget to activate airplane mode, as some might joke. In fact, Gary Coxe, a seasoned pilot with over 7,000 flight hours, says it likely won’t have any immediate noticeable effects. His perspective is shared by others in the aviation world, including some mechanics and engineers, who believe the risk is minimal. However, there’s still a good reason why flight crews insist on it.

According to a pilot and U.S. Army veteran known as PerchPoint on TikTok, the main concern with phones not in airplane mode lies not in the plane’s flight systems, but in the headset communication. On a crowded plane, if several phones are trying to connect to cellular networks, they can cause interference with the cockpit’s communications system, which relies on crystal-clear signals for safety—particularly during takeoff and landing. Imagine a buzzing sound similar to a mosquito near your ear—that’s the kind of interference being described.

While pilots are still able to hear vital information from the control tower, the added distortion can be distracting and annoying, especially during crucial moments when decisions need to be made quickly.

The FAA’s Stance and the Rule’s Evolution

Historically, the Federal Aviation Administration (FAA) has maintained that phones and other personal electronics must not interfere with the airplane’s safety systems or communication devices. In 1991, the Federal Communications Commission (FCC) banned cell phone use on flights, citing the potential for interference with critical aircraft instruments.

However, advancements in technology led the FCC to revisit this rule in 2013. They noted that newer technology—specifically the use of satellite-based network systems—could prevent interference, allowing for in-flight connectivity in certain circumstances. This paved the way for European airlines to offer in-flight 5G technology, where passengers can use their phones without any of the previous concerns. In the European Union, airlines are now required to equip planes with picocells, devices that act like miniature cell towers, allowing passengers to send texts, make calls, and use mobile data mid-flight.

While this is a significant step forward, the U.S. is not yet on the same page. The FAA has not updated its rules regarding in-flight technology since 2017, and 5G networks in the U.S. operate at a higher frequency that could interfere with airplane systems. So, for now, passengers flying in the U.S. are still required to switch to airplane mode during flight.

What Happens If You Don’t Follow the Rules?

While the likelihood of serious consequences is low, there are still potential penalties for those who refuse to follow the instructions. Most of the time, passengers will simply be reminded to put their devices into airplane mode. However, there have been cases where passengers were fined or even removed from flights for failing to comply. In 2016, a British passenger was fined more than $600 for ignoring the airline’s rules about airplane mode. And in 2018, a passenger was kicked off a plane after arguing with the flight crew about whether her phone was in airplane mode.

While these situations are relatively rare, they serve as a reminder that it’s best to follow the rules. After all, being in airplane mode doesn’t just ensure the safety of the flight; it also helps conserve your phone’s battery and, let’s face it, gives you a much-needed break from constant connectivity. Cruising altitude is one of the best times to disconnect, recharge, and simply relax without the usual distractions of emails and notifications.

The Bottom Line: Why It’s Still a Good Idea to Use Airplane Mode

In the end, even though there are no reports of planes crashing due to a phone left off airplane mode, it’s still recommended to follow the instructions from your flight crew. It’s a small step that helps maintain clear communication in the cockpit, reduces potential distractions, and helps you enjoy a more peaceful flight. So, next time you hear that familiar reminder to switch to airplane mode, remember it’s not just about following the rules—it’s about ensuring a smoother and safer flight for everyone on board.