Found this:

SFO-LAX-NRT-CGK-NRT-LAX-SFO for $697 which gives us a 3.69 cpm at 100% mileage. Worth it? Flights to Jakarta from SFO are pretty cheap.

Outbound flight
Wed, Oct 7

7:00 am – 8:36 am
San Francisco (SFO) – Los Angeles (LAX)
American 169 · Economy class · Boeing 737
Average legroom (31")
1h 36m
Wi-Fi
In-seat power
Stream to your device
Layover in Los Angeles LAX2h 54m

11:30 am – 3:25 pm+1
Los Angeles (LAX) – Tokyo (NRT)
American 169 · Economy class · Boeing 777
Average legroom (31")
Often delayed by 30+ min
11h 55m
Some seats with power
No Wi-Fi
Layover in Tokyo NRT3h 30m

6:55 pm+1 – 1:00 am+2
Tokyo (NRT) – Jakarta (CGK)
JAL 729 · Economy class · Boeing 787
Above average legroom (33")
8h 05m
In-seat & USB power
On-demand video
No Wi-Fi
Return flight
Wed, Oct 14

6:50 am – 4:30 pm
Jakarta (CGK) – Tokyo (NRT)
JAL 720 · Economy class · Boeing 787
Above average legroom (33")
7h 40m
In-seat & USB power
On-demand video
No Wi-Fi
Layover in Tokyo NRT55m

5:25 pm – 11:20 am
Tokyo (NRT) – Los Angeles (LAX)
JAL 62 · Economy class · Boeing 777
Above average legroom (34")
Overnight flight
9h 55m
Wi-Fi
In-seat USB power
On-demand video
Layover in Los Angeles LAX3h 30m

2:50 pm – 4:18 pm
Los Angeles (LAX) – San Francisco (SFO)
American 5919 · Economy class · Embraer RJ-175
Operated by Compass Airlines as American Eagle
Average legroom (30")
Often delayed by 30+ min