What is the best site to find companion airfare or companion airline tickets? Is there one always available for somebody to search? Do specific airline sites (e.g. Delta) have them? Are they really worth it, or do they jack the price up so much that you are better paying for two of the separately? I have typed in companion airfare, Southwest Airlines companion airfare, and companion airfare from Birmingham, AL. They were done in separate searches but nothing gave me a good solid answer.
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