Dallas-based Southwest Airlines announced a major change to its longstanding bags fly free policy: checked bags, for the most part, would no

Starting on Wednesday, the Dallas-based carrier will charge customers $35 for their first checked bag and $45 for their second checked bag. The bag fee change will also apply to existing flight itineraries changed on or after May 28, Southwest confirmed to "Good Morning America."

On May 28, Southwest Airlines instituted its new bag policy that was previously announced in March.