How far is the airport?
Are you going to pick somebody up or are you are going away yourself?
My answer is, it is not safe to drive with emissions light on because untill technician in the workshop will read fault memory from engine control unit nobody knows if it is critical or just minor and intermittent issue.
reason why I asked about the reason of visiting the airport was I wanted to know if it would be time critical.
I hope this answers your question,