Originally Posted by
SpammersAreScum
I recently booked several short FJ flights between Fiji and its neighbors, paying a bit extra for "Value". The fare class turned out to be L, which earned 50% on AS and would apparently do the same here.
As noted upthread, Value, Comfort, and Plus fares do not book into specific booking classes. The actual booking class is identified by the first letter of the 8 character fare basis code of the fare you have booked (which is what is used to uniquely identify fare filings on a route). There's no way to know what booking class you are booked into simply by the Value, Comfort, and Plus marketing terms.
ITA Matrix (free) will show the fare basis codes and booking classes on flights if you can look up the same fare filings there. ExpertFlyer (paid) will be able to show you all the available fare filings and booking classes on a particular route.