Airtran is offering a $20 coupon off one-way flights for subscribing to their Net Escapes emails. The coupon should come instantly.
-Sign up for emails by 12/31/09
-Book travel by 01/01/10
-Complete travel by 03/08/10
-Limit of one $20 coupon per email address.
-You may be able to use the $20 coupon through 01/01/10 to purchase exit row seats online ($20 per one-way flight), paying for baggage, or for upgrading to business class ($49 and up per flight segment).