(Just posted this on TrustPilot and am cross-posting it here. NOTE: CheapOAir has a deal with TripAdvisor, and as that's currently the main review site for travel, there's no way to inform would-be users of cautionary tales like mine except for on general review sites like this one.)
IF you just use them to book a flight,
AND manage to run the obstacle course / gauntlet of add-ons they try to get you to sign up for (you REALLY need to read the fine print)
THEN, MAYBE the site has some bargains.
BUT, the site has out-right LIES and misinformation. Case-in-point: change fees. The site CLAIMS that the fees are imposed by the airlines and that Cheap-o-Air (aka, rip-off-scam) has no say in those fees. That is a flat out LIE. The airline in question charges $170 to change the ticket; the flights had the same price so there was no difference in price. Cheap-o-Air's rip-off price: $370! They stole $200 from me.
NEVER AGAIN
Dear Ezra, our apologies for the recent service you received. As a travel agency we are held accountable for the rules that are mandated by the airlines in their fare rules. The airlines do charge airline fees that can be very expensive ranging from 100.00-350.00 depending on the carrier, and fare type. After reviewing your file, we have gone a head and refunded a portion of your ticket price. We regret the inconvenience, and hope this resolves your concern.