GoGo has provided a coupon for FREE Wifi on Airtran Airlines (normally costs $12.95).
1. Select ‘gogoinflight’ network and open a web browser
2. Sign in or click ‘buy’ to create a new account with gogoinflight.com
3. On ‘payment info’ page, enter this promo code: AIRTRANTRYGOGO
See related Discount Codes for Airtran Airlines
This should be valid through 12/31/09.