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Merchant dispute with airline over missed flight, and which credit cards offer protection?
You have no grounds for a refund. The flight took off on time, and you chose not to be on board. The fact that the airline could not guarantee ahead of time that the flight would leave on time is not relevant. You can certainly try to dispute the charge with the airline, and it sounds like you have done so. The airline correctly indicates that your dispute is unfounded. You can call up your credit card company and explain the situation, and they may accept your dispute. However, I am not aware of any credit card that would reimburse you (that is, issue a chargeback) in this situation. I'm not trying to be unsympathetic. It sucks that you felt you could not rely on the airline, and are now out some money. Fundamentally, though, this was your choice. The airline would be obligated to reimburse you the cost of your flight, or book you on another flight, if the flight was cancelled due to bad weather or other issues, but they owe you nothing if the flight took off on schedule.