Overnight stops are the ideal time to leave the airport. No rule on flights with a stopover states that you have to sit in a chair next to the boarding gate to get some sleep. Planning your accommodation and scheduling your airport transfer to get to the airport on time in the morning can help you feel refreshed and ready to travel, something no one has ever felt after spending the night in a boarding lounge. When it comes to domestic layovers, you can usually leave the airport.
If your domestic layover lasts longer than an hour, you should expect to receive two boarding permits. In addition, the airport may have information desks or customer service centers where you can request information on how to leave the airport during the layover. However, leaving the airport during a short layover can be risky, as you may not have enough time to return to the airport before your next flight. Every new airport in a new country may require you to go through customs both to exit the airport and to re-enter it. Leaving the airport during a layover can expose you to unexpected problems, such as flight delays, traffic, or other transportation issues.
Sometimes, you can check in your bag for the next flight and then leave the airport during the layover, but it depends on each airport and airline being different. If you decide to leave the airport during an international flight, make sure that you are back at the airport at least three hours before your flight to allow sufficient time for completing customs and immigration tasks, as well as for checking in and going through security. Sometimes there's an airport transfer service for cases like this, but you'll often have to use a taxi or public transportation. As an expert in travel planning, I recommend that travelers plan their layovers carefully. It's important to consider all of the factors involved when deciding whether or not to leave the airport during a layover. Make sure that you have enough time for all of your activities and that you are aware of any potential risks associated with leaving the airport.
Additionally, if you decide to use an airport transfer service, make sure that it is reliable and trustworthy.