In order to add the Express label to any of your service listings, simply change your delivery time to 1 day and the Express tag will automatically appear on your listing.
How to Change the Delivery Time
Log into your AirGigs account.
Click on the main menu, followed by Seller and then My Services.
You will now see a list of all the services you have created on AirGigs. Find the service you wish to edit and click on the blue Edit Service link, which is displayed in the bottom right corner of each of the service images.
Scroll half-way down the page and edit the delivery time in the field labelled Maximum Days to Complete.
Finally, scroll down to the bottom right-hand side of the page and click on the blue Submit button to commit any changes.