The fare basis code (which includes the mileage level amount in it) is contained in the fare rules (linked from the booking page). The different fare basis codes all map into the N fare "booking" code which is not the same as the fare basis code. This is similar to how W (C+) and E (BE) fares work where there are many fare filings/basis codes mapping into a single booking class. DL has different levels on it's own metal vs. partners. While DL has different levels (each with it's own fare basis code), the partners generally have a single level which is often cheaper than the lowest DL level. The award levels can largely be divined by using 5-week flexible search over a number of months and noting the different levels and checking the fare rules for the fare basis codes and any restrictions (like advance purchase, min stay, day of departure). There can also be roundtrip awards available which will require attempting roundtrip bookings to discover (I do it with a 7-day stay to discover awards which have min-stay, Sat-night stay requirement). Roundtrip awards have an 'R' in the middle of their fare basis codes. Note that sometimes awards can book as broken fares with multiple awards involved. The multiple awards are broken out in the fare rules.
Last edited by xliioper; Mar 21, 2019 at 11:55 am