Difference between Q and L fares?

DornierDo28

New Member
Recently booked a trip on *A.

One trip was UA-UA-UA UA-UA while the other was LH-UA-UA UA-UA. First was Q class on outgoing while second was L fare class. Price was $800 vs $575 so not negligible.

YQ the same for both so not a self dump. The price difference was solely due to the fare class.

What's the difference between these two fare classes and how does it account for the drastic price difference?
 
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