If you dont want to take the long run, you can always find a mage nearby (most likely in darnassus) and ask him to port you to SW or IF, but make sure he's high enough level to port party members.  Type "/who mage" in the chat box and a window will appear with mages in the game you can wisper... if there isn't a mage in the area, you can try talking to any of the mages on that list to see if they would be kind enough to port to darnassus and then port you to SW or IF (might come with a little price).  This is a tip for alliance, not sure what to do for horde...Good Luck :)