Whether he travels or I do, that's something we mutually agree. We will have exchanged cellphone numbers and actually been using the same numbers in our communications.
If local date, I would give benefit of doubt due to traffic and any other unforeseeable circumstances. That said, I would wait for half-hour.

If travelling out of the country, there's need for more precaution....

Return ticket sponsored by him.
Emergency pocket money, I will refund when we meet.
Known cellophane number.
Where possible I would ensure that my good friends in Mingle or otherwise, who lives in his town, city or state are aware of my travel details just in case the guy develops cold feet or was a fake.

I would wait for half-hour as i enjoy walks around the airport. If I cannot reach him on his cellphone within the waiting time, change of plans. Go to a hotel to freshen up and plan meet up with anyone of the friends I had notified. If not possible, it's holiday time! I would catch a train or any public means and go exploring. Believe you me no one would suspect am a foreigner and worse still, stood up! I am like a tea bag!
Back home with a lesson but happy that I toured a foreign country and captured some memories lol.
When life gives you a lemon, make that great lemonade and enjoy!

The ones I hate the most are in the religious forums!

If you don't like a thread, skip it....

There is no need to take the mickey out of anyone's beliefs.

And what boggles me even more is that Mingle does not adjudicate on these,
it actually allows the piss takers to take the piss.

Shame really.

Political