I recently had an interview in San Francisco, the interviewing company flew me out from Dallas. Originally, the plan was to fly out at 6am, do the interview, and fly back at 5pm.
I woke up the morning of my flight to an email alert stating my outgoing flight had been cancelled (unscheduled maintenance). It was 4am in Texas, 2am in California so I really couldn't expect to get in touch with my POC. I figured the best way forward was to try to make it work anyway, so I headed to the airport and got a slightly later flight with a connection in Los Angeles.
When I landed in LA, it was late enough to call my POC. They told me that the window I had been scheduled for was the only time they could see me, and that rescheduling would be very difficult (The CEO and Directors of Marketing and Customer Engagement were supposed to be there). In the end, we did get it rescheduled for the next day, just early enough for me to make my return flight.
I worry that I caused an unnecessary hassle, and my concern that the position would be filled by the time I rescheduled was unfounded and may have hurt my chances by inconveniencing my interviewers. Should I have just stayed home? Was it improper to reschedule a travel plan I did not pay for? How should one handle last-minute changes to itineraries when the purchaser of the tickets is (presumably) asleep?