Czy mogę używać eSIM na pokładzie samolotu?

W trakcie lotu musisz przestrzegać zasad linii lotniczej i używać trybu samolotowego. Ewentualny internet na pokładzie to własne Wi-Fi linii lotniczej, które nie korzysta z twojego pakietu i jest rozliczane osobno. Twój pakiet staje się przydatny dopiero po lądowaniu.

This question usually comes up while packing the night before departure, once the eSIM profile already sits installed on the phone and it suddenly occurs to you: does anything need doing with it once you board? Does it need switching off? Will hours of airplane mode somehow damage the profile? The short answer is simply to follow the airline's instructions as normal. This page goes into what that short answer leaves out — what airplane mode genuinely switches off, and the right moments to install the profile versus the right moment to actually switch it on.

It suits anyone who has just bought a plan and is about to fly for the first time with it installed, anyone who has wondered why signal did not attach the instant the wheels touched down, and anyone with a connecting flight through a third country along the way. Everything here is a general principle that applies to most phones, not advice tied to a particular airline or device model, and none of it overrides what the cabin crew actually tell you to do on the day.

What airplane mode actually switches off

Airplane mode cuts every cellular connection on the phone, whether that line runs on a physical SIM or an eSIM, because it switches off the radio chip that talks directly to ground-based towers. Wi-Fi and Bluetooth run on separate chips, so many phones allow Wi-Fi to be switched back on separately even while airplane mode stays on, which is exactly what airlines typically permit if the flight offers onboard Wi-Fi.

What airplane mode never touches at all is the eSIM profile itself. The profile stays installed on the phone exactly as it was, no matter how long airplane mode stays on, because a profile is data stored on the device's own chip, not a live connection that needs constant signal to keep existing. Switching airplane mode on or off is entirely about connectivity, not about whether the profile continues to exist.

An installed profile does not disappear mid-flight

Many people worry that hours without cellular signal on a long flight will somehow make the profile drop out or get deleted by accident. That is not the case. An eSIM profile only disappears when it is deliberately removed from the device — sitting in airplane mode, for however long, has no effect on whether the profile continues to exist at all.

What genuinely happens after switching airplane mode off is that the phone has to search for and register with a network again, which is a normal step after any long period without signal — it is not a sign that anything is wrong with the profile. If you want the fuller explanation of why a network name can take a moment to appear, that is covered separately elsewhere in the help centre.

Onboard Wi-Fi is a separate service from your plan

If a flight offers onboard Wi-Fi, understand that it is the airline's own service and has nothing to do with the data plan you bought — it carries its own separate terms and its own cost, set entirely by the airline, and is usually purchased or activated through the airline's own system on the seatback screen or that flight's app.

So the plan itself is of no use while the plane is still airborne, whether it is an on-purchase plan whose clock has already been running since the profile was issued, or a first-connection plan that has not started yet because the phone has not successfully attached to any network. The plan only becomes useful once you have actually landed and switched cellular signal back on.

Always install the profile before boarding

Installing an eSIM profile needs an internet connection, whether that is Wi-Fi or the home line's own data, in order to download the profile data from the QR code or link you were given. On a plane, where there is often no internet, or where Wi-Fi comes with its own separate cost, this is a genuinely poor moment to start installing a new profile for the first time.

The safest approach is to have the profile installed and the APN configured while still at home or anywhere with reliable internet, ideally before even leaving for the airport, so you never need to depend on airport or in-flight Wi-Fi at all. If it has not been installed yet, a separate step-by-step guide is available to walk through it.

First-connection plans and the timing of your flight

If your plan is a first-connection type, the expiry clock does not start until the phone actually registers successfully with a destination network. Installing the profile in advance does not affect the expiry date at all, even if it sits installed for several days before the flight, or even during the flight itself, since being airborne can never actually attach to a ground network in the first place.

The one thing to watch is not switching on data roaming for this line while still at home or during a layover in your home country, since if the phone happens to attach successfully to a network that is not the actual destination before you meant it to, the clock can start earlier than intended. Only switch on data roaming for this line once you have genuinely reached the destination.

On-purchase plans and the timing of your flight

If your plan is an on-purchase type, the expiry clock starts running from the moment the profile is issued, whether or not it has actually been used yet. Time spent airborne is therefore genuinely unused time for this kind of plan, since there is no way to attach signal while in the air regardless.

For that reason, if you choose an on-purchase plan, it is worth factoring in the length of the flight and any layover time when choosing how many days the plan should cover, so you are not paying for days that pass before the plan can genuinely be used. The site's data calculator can help work out both the data volume and the number of days worth choosing.

What you still have to do yourself after landing

Switching airplane mode off after landing does not always make everything ready automatically. Data roaming for the eSIM line usually needs switching on separately, especially the first time that line is used in that particular country, and if the phone also has a home SIM installed, it is worth checking which line is set as the primary data line before relying on it.

If data roaming has been switched on and airplane mode toggled but signal still does not attach, a fuller explanation and fix sits in a separate help article, so this page does not repeat what is already covered elsewhere. The important thing to take from here is simply that what happens after landing is a different matter from what needs preparing before boarding.

The recommended sequence, from before boarding to after landing

1. 1Install the profile and set the APN before leaving homeDo this while on reliable internet, so there is no need to depend on airport or in-flight Wi-Fi at all.
2. 2Follow the airline's airplane-mode instruction as normalNothing extra needs doing to the eSIM profile mid-flight; it stays installed exactly as it was regardless of how long airplane mode is on.
3. 3Once landed and permitted, switch airplane mode offGive it a moment for the phone to search for and register with the destination network.
4. 4Switch on data roaming for the eSIM lineIf this is the first time using this line in that country, check that data roaming is switched on, not just that a network name has appeared.
5. 5Check this line is selected as the primary data lineIf the phone also carries a home SIM, check the line settings so the home line is not accidentally left carrying data instead.

If your itinerary has a layover in a third country

If the itinerary includes a layover in a country that is not the final destination, there is no need to switch on data roaming for the eSIM line during the wait at all, especially if your plan only covers the final destination. Switching data roaming on in a third country can make the phone attempt to attach to a network the plan does not actually cover.

If internet is genuinely needed during the layover, the safer option is to rely on airport Wi-Fi or the home line instead, and only switch on data roaming for the eSIM line once boarding the final leg or arriving at the actual destination, so there is no confusion over why the line does not seem to be working during transit.

A phone carrying both a home SIM and an eSIM in flight

Airplane mode always cuts the cellular connection of both lines at the same time — there is no way to switch it off for one line only. So during the flight, both the home SIM and the eSIM go without signal together, regardless of which line was active before boarding.

After landing, both lines attempt to search for a network at the same time once airplane mode is switched off, but which one actually carries data depends on the phone's primary-data-line setting. This is where many people slip up: seeing signal appear and forgetting to check which of the two lines is actually the one carrying data.

Common mistakes before boarding

The most common mistake is leaving the profile install until arriving at the airport, hoping there will be free Wi-Fi available, which is never guaranteed. If no working Wi-Fi turns up, you can end up boarding the flight with the profile still not installed at all.

Another mistake is assuming onboard Wi-Fi is somehow part of the plan you already bought, then being confused about why it does not work or why it gets billed separately, when in fact it is an entirely different service, exactly as explained above.

The airline and crew set the rule, not the eSIM provider

Exactly when airplane mode must go on, when onboard Wi-Fi is permitted, and the rules around electronic devices in flight are all set and announced by the airline and cabin crew on that specific flight — none of this is something an eSIM plan provider is involved in or has any authority to change.

If the crew states that electronic devices must stay off during a particular phase of the flight, such as take-off or landing, that instruction always comes first, no matter how tempting it is to check the plan's status or the signal. In-flight safety instructions always outrank curiosity about a signal bar.

If you are unsure the setup is correct before you fly

If the profile has been installed but you are unsure whether the APN is set correctly, or unsure the right line is chosen as the primary data line, get it checked before leaving home rather than leaving it to sort out once you arrive, since some destinations may not have public Wi-Fi readily available the moment you land.

The team is available to help check the setup before departure through the channels listed below — mention the device model and operating system in use so the check is as accurate as possible, and keep the order number ready in case it needs referencing.

What to do at each stage of the journey

Prepare before you travel

• Have the profile installed and the APN set before leaving home, not left for the airport
• Remember that in-flight Wi-Fi is a separate service from the plan, with its own terms and cost
• If the plan is first-connection, do not switch on data roaming before actually reaching the destination
• Know in advance that data roaming needs switching on yourself after landing — it does not turn on automatically
• Keep the order number somewhere easy to find in case the team needs contacting along the way

Review the full eSIM install guide

Contact the team if unsure before you depart