Use Tile control's tileWidth to specify the width of the tiles
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Tile id="myFlow" direction="horizontal" borderStyle="solid" paddingTop="10" paddingBottom="10" paddingRight="10" paddingLeft="10" verticalGap="15" horizontalGap="10" tileWidth="100"> <mx:TextInput id="q" text="1" height="50" width="100%" /> <mx:TextInput id="w" text="2" height="50" width="100%" /> <mx:TextInput id="e" text="3" height="50" width="100%" /> <mx:TextInput id="r" text="4" height="50" width="100%" /> <mx:TextInput id="t" text="5" height="50" width="100%" /> </mx:Tile> </mx:Application>