Prague Airport Warning Before the Summer Season: These 5 Mistakes Cause the Most Delays

On May 21, 2026, Prague Airport relaunched its CHECK IN information campaign, and its central message is simple: in the summer peak season, buying the flight ticket is not the hardest part, but ensuring that the passenger actually arrives at the airport well-prepared. According to Prague Airport, it is particularly important this year to leave early, prepare the correct documents, check baggage rules, and understand that security processes are not necessarily the same across all terminals within the same airport. This is not insignificant for Hungarian travelers: Prague is an alternative departure point for many for long-haul, low-cost, or seasonal flights, which is why a poorly packed power bank, a missing passport, or a misunderstood liquid rule can easily disrupt the entire trip.

The fresh warning is interesting because it does not repeat general airport wisdom, but draws attention to several very specific risks. According to the Prague Airport announcement, more than 11.9 million passengers are expected in the summer season, which corresponds to a 3.6 percent annual increase. Meanwhile, access to the airport is also burdened by the reconstruction of the Aviatická and Lipská junctions, meaning the risk of delay is increasing not only inside but already on the way there. The airport therefore recommends that passengers arrive by public transport if possible, or at least leave a much larger time buffer for the journey. For those whose logistics for departing from Prague are only now coming together, an overview of Prague airport flights, as well as checking airport transfer and taxi options, may be useful.

1. Mistake: Leaving for the Airport Too Late

One of the strongest messages of this year's Prague Airport campaign is not about security checks, but about the journey there. Airport management specifically highlighted that during the summer period, road traffic can be seriously affected by the renovation of the Aviatická x Lipská junction. This is essential because many passengers still assume that the difficulty begins at the terminal, while the delay actually occurs on the road leading from the city. For Hungarian travelers, this is particularly important if they are traveling from Budapest by car, rental car, or even arriving the previous evening to depart from Prague. In such cases, it is not only the flight departure time that must be considered, but also how predictable the final section leading to the airport is.

For those with a very early departure or those building a longer Prague layover into their trip, accommodation near the airport may be a more convenient solution. If the trip continues with a Czech or regional circuit, it is worth checking car rental options at PRG airport in advance, as the organization of arrival at the airport and the subsequent departure from there together determine the actual time requirement of the entire trip.

2. Mistake: Thinking Digital Identification is Sufficient Everywhere

One of the most important practical elements of the campaign concerns document checks. Prague Airport specifically warned that the Czech eDoklady app cannot be used for identity verification at travel checkpoints, meaning physical documents must still be carried. This detail may seem like a Czech internal matter at first glance, but it actually has a broader lesson: a ticket, boarding pass, or digital document stored on a mobile phone does not automatically replace a paper- or plastic-based identifier everywhere.

For Hungarian travelers, this is a particularly dangerous assumption if someone is preparing for a trip within Schengen and thinks that "they won't ask for it anyway." At some checkpoints, passage is indeed faster, but the airline, the destination country, or the specific airport process may still require an identity document. Prague Airport also emphasizes that for certain countries, separate entry permits must be checked before departure. The British ETA is mentioned as an example: according to the official British government website, most European visitors still need a prior electronic travel authorization, which is linked to the appropriate passport. In other words, it is not enough to know that "I am an EU citizen," but it must also be verified which digital or physical document is required on the given route.

3. Mistake: Interpreting Liquid Rules the Same for Every Terminal

Perhaps the most interesting part of the Prague Airport announcement is that security rules are currently not completely identical between the two terminals. In Terminal 2, eight new CT scanners are already operating, which makes the screening process more relaxed: passengers do not need to remove electronic devices and liquids from their carry-on baggage in the lanes where such equipment is operating. Furthermore, according to the airport, in addition to the classic transparent bag of maximum 1 liter consisting of containers of maximum 100 milliliters, an additional liquid container of up to 2 liters can be carried.

This sounds good, but there is an important trap: rules have not changed in Terminal 1. There, the classic EU system still applies, meaning liquids must be presented separately, and only containers of up to 100 milliliters fit into the transparent one-liter bag rule. The European Commission's official passenger information also reminds that security restrictions on liquids still apply at EU airports, and due to the technical specifications of individual airports, practical screening may differ. In short: just because someone once passed through a more modern checkpoint, it does not mean they will pass with the same packing every time they depart.

This is especially important for connecting flights. If a passenger departs from Prague and later passes through another security check at another European airport, they may encounter the stricter practice again. Therefore, the safest strategy remains to organize liquids in carry-on baggage according to the traditional 100 ml logic, and to treat the Terminal 2 conveniences in Prague as a comfort bonus rather than a general European rule.

4. Mistake: Placing Electronic Devices and Batteries in the Wrong Place

According to Prague Airport, one of the most common passenger mistakes today is the incorrect packing of electronic devices. The airport recommends that such devices be placed in carry-on baggage, and specifically highlights items operating with high-capacity batteries, such as power banks, laptops, or tablets. This is not just a matter of convenience: there is a security reason why airlines and airports are sensitive to the placement of lithium-battery devices.

According to the airport's information, the generally accepted limit is 100 Wh capacity. Smaller devices with built-in batteries may in some cases go into checked baggage, but only if they cannot be accidentally switched on. In practice, the biggest risk is the power bank, because many passengers out of habit throw it into their checked suitcase. This can easily lead to disputes, subsequent baggage opening, or even delays. Prague Airport explicitly warns that breaking the rules can delay the flight, and may even lead to the passenger not being able to fly on the given aircraft. In the summer peak season, when turnaround times are tight, this is a much more serious risk than it sounds at first.

5. Mistake: Not Utilizing Self-Service Processes and Then Complaining About Queues

Based on the airport's announcement, self-service check-in and bag drop are no longer experimental side services, but a key element of summer operations. A total of 31 self-service check-in kiosks are operating at Prague Airport, and in the summer season, self-bag drop can be arranged at 32 counters. According to the airport, more than half a million bags were checked in this way by passengers last year. This indicates that the system is no longer a curiosity, but an established process.

For Hungarian travelers, this is useful because most delays do not stem from a lack of technology, but from the passenger starting to think about whether they have online check-in, whether they have downloaded the boarding pass, whether the flight supports self-service bag drop, or from which terminal their plane departs at the last moment. According to Prague Airport, currently 18 airlines support the self-service bag drop service, and this circle may expand further. Those who check this in advance not only save time but also reduce the chance of arriving at the gate stressed due to queues forming at traditional counters.

Why is this important for Hungarian travelers?

Prague has recently become an alternative departure point for more and more Hungarian travelers, especially when someone is looking for a specific route, a better price, or a seasonal flight that is not available from Budapest in the same form. In such cases, the flight is actually part of a complex travel chain: car, bus, or train to the Czech capital, then airport transit, check-in, security check, and only then the flight itself. In this model, a small misunderstanding can be much more expensive than with a direct departure from home.

Prague Airport's current campaign is therefore more than just a local press release. It conveys that in the summer of 2026, the key to a successful trip is not only the price, but the quality of the preparation. Those who check the terminal, the liquid rules, the batteries requirements, their documents, and the risks of the road leading to the airport in advance, will not only travel more comfortably but also reduce the chance of a complete itinerary being ruined by a seemingly small mistake.

Summary

Prague Airport's May 21 CHECK IN campaign is timely because it does not speak of summer chaos in generalities, but precisely names those mistakes that most frequently cause delays: late departure, lack of physical documents, misunderstanding of liquid rules that differ by terminal, incorrect packing of electronic devices, and ignoring self-service systems. For Hungarian travelers, this is particularly useful because Prague is often not a destination, but a consciously chosen regional departure point. The more popular this role becomes, the more important it is for the passenger to not only buy a ticket, but to secure a working travel plan for themselves.