How to upgrade southwest flight?
Upgrading your flight means upgrading your flight to early bird check-in, Upgrade booking or an option of business selection. You can choose your own selective time to board the flight and enjoy the internal enmities of the plan along with choosing your favourite seat.
You can upgrade your flight by calling these numbers OTA: +1-800-970-3794 or +1-800-435-9792 USA, which is Southwest Airlines’ customer service number.
For more info: https://airfaresupport.com/blo....g/how-to-change-and-
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