Jetstar is a totally different story with a warped business model, poor scheduling with frequent cancellations, no clue about customer service and no FF program unless you want to spend twice or three times the price of a red e-deal.
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I was more referring to airlines that originate in countries like Angola, Gabon, Liberia, Democratic People's Republic of Congo, Sierra Leone, Kazakhstan etc....
I think you'll find your question was rather warped and/or ambiguous, because the difference between "discrimination" of an airline based on its country of origin or whatever the media or its business model says was not specified in your original question and, in my opinion, doesn't warrant any special consideration. Your question purely related to whether someone had not flown that airline before. So it's not "a totally different story"
per se although it does point out that people will prejudge and not fly certain airlines for different reasons, irrelevant if they are "correct" or "incorrect" reasons.
For example, I've only flown JQ a few times (relative to my flying QF) and I have had no qualms with their service. In fact, I quite like JQ Star Class, except for the fact that in non-sale times it's almost, as or is more expensive than regular J on any given full cost carrier. That, and their rather odd pricing (which as
JohnK points out, is idiosyncratically often more expensive than the other options
including QF), plus the inability to earn FF points or SCs on any fare except flexible and Star Class detracts me from flying them. (The inability to earn status and/or points is one big reason why I don't particularly look forward to flying JQNZ at any time soon).
As for not flying airlines from the countries on the EU's no fly list, I guess I will admit upfront that I have an assumed bias towards the EU's judgement. That is, I am going to assert that the EU has composed this list within strict and impartial guidelines and thus the list stands as valid for valid reasons. As of posting this, I'm also asserting that the EU does not ban airlines from flying to their community on the basis of pure politics or commercial grounds but based on safety assurance. With this in mind, there would probably need to be compelling reasons why I would fly any of the airlines in the list (perhaps I need to get somewhere that is only serviced by the said carriers...)
Of course, we know there are other airlines not on the EU list that have had a plethora of accidents; some probably more than a handful of those on the list combined......
Perhaps "discrimination" is the wrong word; "prejudice" is probably more appropriate.