How do you pronounce airport codes to yourself while reading them?
If I see an itinerary SMF-ORD, I read it (in my head) as "Smurf to Auwd". KORD is "Kay-Auwd", and LHR is "El-Aitch-Ar".
Does anyone look at "DEN-MSP" and actually think "Denver to Minneapolis" instead of "Den to Em-Es-Pee"?