I've been keeping an eye on long haul flights to Asia and there are some really good deals currently for when I want to travel. I'm using search sites such as Kayak and it's offering me booking websites such as Booking.com, GoToGate, Expedia and so on to book - so in other words, trusted, established sites.
I thought I'd take a look at the flights on the airline's own website however, yet it says the flights are 'unavailable. Please change the date and try again.'
Am I right to be a bit wary about these websites supposedly offering flights that aren't available?