Depending on the airline, travelers may be charged a rebooking fee to get on another flight. Some airlines may also charge the difference in airfare — meaning a missed flight can be a costly inconvenience.
Can you get a refund if you miss your flight?
You generally can't receive a refund on a missed flight. Depending on the circumstances of your situation and the terms of your fare, you may receive partial credit or free rebooking, but the only way you're likely to get a full refund is if the airline cancels your flight.