Such linkbait nonsense. Lesser known but brilliant Icelandic search engine dohop.com in particular has being finding all these options for over ten years. e.g <a href="http:&#x2F;&#x2F;www.dohop.com&#x2F;flights&#x2F;?d1=190116&amp;d2=&amp;a1=SFO%2CSJC%2COAK&amp;a2=LHR%2CLGW%2CSTN%2CLCY%2CLTN%2CSEN&amp;return=0" rel="nofollow">http:&#x2F;&#x2F;www.dohop.com&#x2F;flights&#x2F;?d1=190116&amp;d2=&amp;a1=SFO%2CSJC%2CO...</a>