You may check in with How to Check In LOT Polish Airlines a variety of online and offline procedures. To properly check in for flights, passengers only need to follow the instructions. The easiest way for travellers to print their boarding passes is through online check-in. Before taking a flight with LOT Polish Airlines, one must be aware of a few laws and regulations. For instance, many airports do not offer LOT Polish Airlines Web Check In owing to certain constraints. Such passengers are advised to check in at the airport, which is entirely free.