There are three basic types of commercial real estate leases. These leases are organized around two rent calculation methods: net and gross.. The gross lease typically means a tenant pays one lump sum for rent, from which the landlord pays his expenses. The net lease has a smaller base rent, with other expenses paid for by the tenant. The modified gross lease is a happy marriage between the two.
The Transportation Security Administration agrees with it, but airlines don't. For instance, American Airlines advises passengers to be at the airport two hours before flight time for international departures and 90 minutes for domestic flights. Also, there's an exception for flights to certain overseas destinations, which require that you check in earlier.
Check the airport's website to gain additional insight. Most airlines suggest arriving two to three hours early for a flight to Canada. If the airport is small, closer to two hours early is often sufficient. For many airlines, the minimum check-in time is 30 to 45 minutes before the flight leaves, but all airlines recommend you arrive well before this time.