redeem 6000 UA miles for Japan domestic oneway tickets

 after British Airways Introduce the new mileage exchange policy, redeem JAL japan domestic short route (650 miles) only need 4500 avios, united airlines also added the Japan domestic oneway ticket redemption, whether you are from Tokyo to Fukuoka, from Hokkaido to Okinawa (Sapporo), you only need 6000 miles to book economy class seat on the ANA.

and there are many ANA's seat, a search for HND-FUK, pop-up windows are full.
 we only need to pay attention to the economy class reward redemption, because recently you are unable to find domestic business class award ticket.
 As the beginning of this said, British Airways and United reward redemption is awesome. But I think the UA reward are better.

If we want to book a flight from Sapporo to Okinawa, because BA is a Distance-Based Awards, and you need a connection flight in Tokyo , therefore you need 4500 (CTS-HND 509miles in category 1 +7500 (HND-OKA) 966miles category 2) =12000 avios.

But if we book from UA, UA cost depend on the distance, so you only 6000 miles.

after the comprehensive comparison between UA and BA, if it is a relatively short distance oneway (within 650 miles of the leg), BA better, after all, you need less miles. But if it is a connection flight or long distance travel, UA 6000 mile saver reward is your best choice.