How much time should we arrive before an international flight?

2 hours.

Most major airlines recommend that you arrive at the airport, 2 - 3 hours ahead of time before your flight leaves. However, you can arrive at the airport at least 2 hours before your flight leaves and still be ok. Delta Airlines once told me that even 1 1/2 hrs before your flight leaves would give you ample time as well to check in at the airport, depending how big the airport is. • If it's a SMALL airport: you can arrive 1 1/2 - 2 hours ahead of your flight. • If it's a BIG airport: you better arrive 3 hours ahead of your flight. This airport, Spokane International Airport, has superb service and great courtesy, so you will easily make your flight no problem. Good luck, Dan, and safe travels!