Ordinarily, I wouldn't bother with sites like these, but when someone not only loses a lot of money, but then gets mocked by the scammer, well, game on kids.
Step 1 - Report the two sites, travelyankeys.com and southandwestairline.com, to GoDaddy (firstname.lastname@example.org). Let them know the site is a scam site and reference this page.
Step 2 - Their email addresses are funneled through GMAIL. Let's get them removed from GMAIL, too. (MX Records point to alt1.aspmx.l.google.com https://support.google.com/mail/contact/abuse
Step 3 - Report the sites to Google Phishing and MS Smart Screen
Step 4 - Let South West (the real company) know that they are impersonating South West with a site like "South and West Airline". I'm sure their legal team can assist us.
Step 5 - Well, you know the rest :) I'll leave that up to you all.