How late can you change southwest flight – Skynair To know more about,‘how late can you change southwest flight, The travelers just need to dial the Southwest Airlines official phone number: +1-800-860-5036(OTA) or +1-800-435-9792. When you change your flight within 24 hours of booking it, you do not need to pay any fee. The change fee is not too high. However, as the departure time comes closer, the fee rates keep increasing. #howtotalktohumanatsouthwestairlines #contactcustomercareatsouthwestairlines Source Url: https://skynair.com/blog/how-late-can-you-change-southwest-flight/