"Alaska Airlines' A70 code is listed on corporatecode.org and confirmed across major aggregators. Airline employee codes as a category carry Medium risk — hotels are accustomed to airline crew and employee rates and occasionally verify crew IDs, especially at airport-adjacent properties. The A70 code is alphanumeric rather than a pure 3-letter ticker, making it slightly less prominent in code-sharing communities. No specific forum discussion found documenting elevated enforcement. Standard airline-sector Medium applies, with higher risk at SEA-TAC corridor properties."

"I work for the front desk, at a Marriott, & have for the last 8 years .... So when it comes to room upgrades; it goes based on AVAILABILITY... sometimes no matter the tier, if we have it available - I will upgrade the guest. Now of course, higher tiered members get dibs on the upgrades first but after we go through the higher tiered members, Ambassador, Titanium, Platinum - then we go through the other ones. I cannot express this enough : BEING NICE & POLITE AT THE DESK GOES A LONG WA"

"I don't do mobile check-in if I'm wanting to upgrade. I check the app before I go in to see if any suites are available to book during the duration of my stay. If there is I just say "Would it be possible to get upgraded to an available suite with my platinum benefit?". Of course this is typically at the hotel that I stay in about once a month for 3 day at a time for work. The front desk pretty much knows me and know that I am fairly low maintenance."