ANA cards suck
It turns me out that ANA mileage system sucks. When you fly United, or other Star Alliance airlines using PEX, the discounted economy ticket, you’ll only get 50-70% of actual miles. That’s why I only get 8500 miles or so with a roundtrip flight to San Francisco, which should be over 10k miles.
With United Mileage Plus, you’re always guaranteed to get 100% of miles even if you fly with discounted price, and there’re no problems if you’re crazy for ANA: you can get miles to your UA mileage even when you fly ANA Japan domestic flights.
Sad.
Looks like I should switch my mileage (and possibly my credit card) to United’s. I know that United sucks too, but it should “suck less” in terms of mileage.