Originally Posted by
Patrick Ding
Agreed with posters above, always book two separate one-ways with Southwest. Gives you flexibility to modify either leg if either goes down in price.
Otherwise, booking RT means both legs need to reduce in price to get any $$ / points back.
This is incorrect, outdated information and should be deleted. I frequently modify one leg of a RT (flight time change, fare drop, co-terminal change, etc.) with no issues at all.