Air India offers the following kind of tickets in order of increasing price (top to bottom)
- Super Value Economy
- Flexi-Saver Economy
- Flexible Economy
What is the difference between them?
The Airline UI does not explain it clearly.
The somewhat cynical answer here is "because the airlines try to trick passengers into paying a lot more money for little or not benefit". To quote PT Barnum: "There is a sucker born every minute" and the airlines love these as customers.
Air India seems to be a case in point. They aggressively market the upgrade but the fare comparison table looks like this
They all look identical referring to the "Fare Rules". If you bother to click through all the way to the rules, you find them quite hard to read. Baggage allowance is exactly the same for all fares and the only meaningful difference that I could see was in the change/refund fees. For a change it was ₹15000, ₹13000, and ₹9000, respectively. So you can pay ₹36000 extra to potentially save ₹6000 in change fees. That's off course completely idiotic and hence the airlines love it. Differences for refunds were similarly small and I didn't see anything about points.
So as far as I can tell, there is only very little value in buying the higher fare classes and absolutely nothing that warrants the considerable price difference.
Unfortunately this type deceptive marketing is part of today's airline culture. It boggles the mind that some airlines that have officially have waived change fees, still sell so-called flex tickets at exorbitant prices (that offer no extra value whatsoever). Here is a simple rule
Never buy a flex ticket if the difference in change fees is less than difference in ticket price.
If you bother to plow through the fine print (which is complicated and often intentionally hard to read), you will find that a flex ticket almost never makes sense for the customer even if there is a high chance of a change happening.