Southwest Airlines will begin charging for checked baggage, marking the official end of its long-standing “two bags fly free” policy. The Dallas-base

Beginning Wednesday, Southwest passengers will no longer get two guaranteed free checked bags when purchasing a flight. That prior rule is disappearing as the airline starts charging fees for checked bags for the first time ever.

For Southwest Airlines passengers, it's the last day to book a flight with two guaranteed free checked bags no matter which fare they purchase. Starting on Wednesday, the airline will introduce its first-ever checked bag fees,