Unlimited Domestic Upgrades for Medallion Members:
Delta.com:
LINK
Your Medallion membership entitles you to enjoy unlimited complimentary upgrades, subject to availability, on most published economy fares on Delta and certain Delta-designated codeshare flights in North America within or between the United States (excluding Hawaii) and Bermuda, Canada, Central and South America (some exceptions), the Caribbean, and Mexico.
The Medallion
Benefits at a Glance provides details on the upgrade window for domestic upgrades.
In for domestic upgrades to process in advance, there must be RP/RU or OP/OU availability. Upgrades not processed at the gate will go on the airport list.
Upgrades using SWUs on Domestic Flights:
In order to use an SWU on domestic flights, a K fare or higher must be purchased. To get the upgrade in advance, RP or OP must be available.
Delta.com:
Systemwide Upgrade Certificates
Upgrades using Mileage:
Delta Upgrade Awards
Same Day Paid Standby Upgrades:
The same-day standby upgrade option allows you to upgrade your flight for a small fee, provided space is available and your ticket is eligible. Eligible tickets are those ticket booked in K-class (or higher). For travel to/from Hawaii only, eligible fares include those booked in L, U and T classes. This option applies to specific flights and routings: Within North America; To/from Aruba, Bermuda, Grand Cayman (Cayman Islands), Montego Bay (Jamaica), Nassau (Bahamas), Providenciales (Turks and Caicos), Los Cabos (Mexico), San Juan (Puerto Rico), and St. Thomas (US Virgin Islands); Between Atlanta and Costa Rica, St. Maarten and St. Lucia; Between Cancun (Mexico)and Atlanta, Cincinnati, Detroit, Indianapolis, Memphis and Minneapolis
Delta.com:
LINK
Domestic Upgrade Priority: (Thank you
LedgeT -
http://www.flyertalk.com/forum/delta...u-madness.html,
LINK)
UP2A - DM desiring to use SWU
UP2B - PM desiring to use SWU
UP2 - Full Y medallion desiring comp upgrade
UP3D - DM desiring comp upgrade
UP3 - PM desiring comp upgrade
UP4 - GM desiring comp upgrade
UP5 - FO desiring comp upgrade
UP6 - Companion or AS/AF/KL elite desiring comp upgrade
UP7 - Psgr on award ticket booked in R/O and confirmed in coach
SBUP - Delta paid standby upgrade program
Complimentary Domestic Upgrades on Alaska Airlines:
From delta.com:
Elite reciprocity privileges for Delta SkyMiles members and Alaska Airlines Mileage Plan members including priority boarding, priority check-in and seat assignments, and reciprocal upgrades for customers who have reached Platinum or Gold status in either airline’s frequent flier program.
Related flyertalk Threads:
http://www.flyertalk.com/forum/delta...l#post15418711
http://www.flyertalk.com/forum/alask...es-thread.html