Originally Posted by
fastair
....If one could "go back in time" and reprice what would have been cheapest, then noone would ever buy full fares (if they knew of this option) and would all buy the most discounted tickets, and if they needed to make a change they would use the "go back in time and find out what would have been the cheapest way to do what I currently want" method.
There are no "mulligans" in fare rules in terms of retroactive pricing.
I see your point, however, most discounted RT fares are less than OW fares.@:-) For example, let's say you purchase a discounted Z RT fare. Since there is no one way Z fare available, the lowest OW may be C fare which is likely close to or even higher than Z RT fare. The difference is even more pronounced if you purchase RT S fare since OW Y fare is far higher.
What is the correct way to calculate partial refund for RT ticket which was flown OW?