Providing passengers with information such as the locations of local hotels and attractions, or even general area information such as weather, while they're still on a flight is a practical and convenient way to ensure that passengers have all of the knowledge they need. Providing this information via an SMS ensures that there is no internet or other external network needed except a cell phone data connection.
During the boarding process, you can give passengers the ability to opt-in by texting a shortcode with the name of their destination city. They will then be sent a confirmation SMS, listing the various kinds of information that is available to them through other keywords, such as HOTELS, ATTRACTIONS, or INFORMATION, and any additional instructions that may be required.
As soon as someone texts one of the given shortcode keywords, they will be automatically sent the required information. If, for example, someone wanted to learn about hotel options in Toronto, they could text TORONTO HOTELS to the shortcode. By providing this information in such a way, you can ensure that patrons of your airport can get where they need to go efficiently.