*Global Premier Upgrades are not available on flights booked in fare classes Z, P, S, T, K, L, G or N.
**Co-pay is waived for Premier members
SaverPass Award Seats
O - SaverPass 3-cabin First Award
IN - Elite (Plat/1K/GS) SaverPass Business or 2-cabin First Award
I - Non-Elite and Low Elite SaverPass Business or 2-cabin First Award
XN - Elite SaverPass Coach Award
X - Non-Elite SaverPass Coach Award
ON - C to F on 3-cabin aircraft
JN - Y-Up for Elites (tracks to the J bucket; i.e. last seat availability)
PN - B/M-Up for Elites (tracks to the P bucket); All GS upgrades Y->C (CPU, RPU, GPU, miles)
R - Upgrade to Business/Domestic F (except GS)
RN - This has recently been reported to be internal-use only, not elite upgrades. The reality of that report is not yet clear.
Points earning for all upgrades is based on the original purchased fare. Also see below.
Upgrades Note that upgraded flights will post to your MileagePlus statement as Z(X) where the second letter (X) is the original booking class. That letter defines the earning rate for the flight as points are earned based on the original booking class.
If you purchase a ticket on a flight that is marketed by United but operated by another airline (known as a code-share flight), the operating airline determines how many miles you earn for your flight. Note that the booking class that appears on your ticket may differ from the booking class that the operating airline uses to determine flight miles earned.
Pecking Order By Fare
J C D Z P O A R Y B M E U H Q V W S T L K G
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[Seat Guru][Expert Flyer]