bcworld
Established Member
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- May 26, 2010
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Can anyone explain MPM to me? I dont understand it.
You're persistent!
In a nutshell:
If you are paying for a ticket with cash there are limits around how many miles you can fly to get from A to B. Let's say there is a published fare between A and B. In order to buy that fare your proposed route must be under a specific number of miles - the MPM. BUT, you can go over the MPM if you pay a surcharge above the base fare. So, the airline may allow you to travel 15% further than the MPM in return for charging 115% of the published fare. It seems that the maximum miles/payment amount/surcharge allowed is 25% (also known as 25M). It seems US is using this 25M number (MPM x 1.25) in determining how many miles we can travel between A and B...fortunately for us they are not charging a miles surcharge! In the real world where people pay for tickets with money, if their proposed routing is over 25M then they will have no choice but to book it as 2 separate tickets...hence the reason US is not accommodating of people who are just a few miles over 25M...they are already being generous!
Next thing - if you want to know the MPM number or 25M number you MUST have access to a tool like KVS or Expertflyer or call US and ask what the number is. You cannot determine it from gcmap and the actual distance between 2 points.