Is this the longest rtw allowed?
 

(updated)
http://www.gcmap.com/map?P=c:%23abcd...%23ee82ee&PW=2

hkg-bkk-cmb-nrt-cmb-pvg-syd-dxb-lon-cpt-doh-lax-mbj-lax-gru-asu-bog-asu-gru-jfk-yvr-hkg
80230mi


................
Routing: Toronto - Los Angeles - Santiago - Easter Island - Santiago - Dallas/Ft. Worth - Doha - London - Johannesburg - Hong Kong - Male - Hong Kong - Delhi - Hong Kong - Auckland - Hong Kong - Toronto
70,529 mi

145 flight hours

http://www.gcmap.com/map?P=yyz-lax-s...X=720x360&PM=*

Welcome to FT!

See this thread and review the rules for transiting Asia twice - http://www.flyertalk.com/forum/onewo...ent-rules.html

I'm not sure what point gardyloo is making with regard to transiting Asia twice
The routing looks valid to me
- the final visit to HKG, after AKL, will need to be a 'transfer without stopover'
- as will the visit to DFW after South America

yyz-lax-scl-ipc-scl-dfw-doh-lhr-jnb-hkg-mle-hkg-del-hkg-akl-hkg-yyz

Don't now if it is the longest possible RTW routing

far from it.
hkg cmb nrt cmb hkg is better already

Hkg transit
 

I had a similar itinerary. CX would not allow the last transit through HKG. AA permitted it. I did some dummy bookings and the online tool was OK with it.

What reason did CX give for denying it?

Not to mention that nearly an extra 3000 miles could be had by tweaking the first six sectors to something like this: yyz-lax-gru-bog-gru-lax-doh

Agreed. But Online tool would not allow J class from cmb to nrt.

i booked this offline.

i can think of many many many ways to improve on your routing to get more miles.
example, ipc-scl is shorter than scl-bog

also, you should max out on intra europe via doh, like cmn-doh
lax-doh is longer than dfw-doh.
gru lax is longer than scl dfw...

Thanks for the input

Is this better?

cmb-nrt-cgk-nrt-mel-dxb-lon-cpt-doh-lax-mbj-lax-gru-asu-bog-asu-gru-jfk-yvr-hkg-bkk-cmb

http://www.gcmap.com/mapui?P=cmb-nrt-cgk-nrt-mel-dxb-lon-cpt-doh-lax-mbj-lax-gru-asu-bog-asu-gru-jfk-yvr-hkg-bkk-cmb&MS=bm&MP=rect&MC=SYD&PC=%23cc3333&PW=2&DU=mi

79,930 mi

Fifth freedom flights:
mel-dxb-lhr QF9
gru-asu-bog JJ8012/3
jfk-yvr-hkg CX889
hkg-bkk-cmb UL891

So 21 flight segments but still valid for the "16 segment" rule.

just 70mi short of 80k...

how much would this ticket in J cost?

This would obviously add miles to your total distance. But that raises the question: why? If it's just for the thrill [???] of sitting that much longer in an aeroplane, then ... OK. But for most of us the idea of 'maximising' an RTW is connected to the idea of garnering as many frequent flyer points as possible. With those one-flight-number-but-two-segment routings, does the frequent flyer programme give points based on AB + BC, or do they simply calculate the direct AC distance?

I think they calculate direct distance... But I am not sure, we should ask the experts.

Regarding your question, this is just for the sake of fun... I plan on taking my shorter original plan in J class some day, which consist of mostly enjoyable long haul Cathay Pacific flights.

http://www.gcmap.com/map?P=c:%23abcd...%23ee82ee&PW=2

hkg-bkk-cmb-nrt-cmb-pvg-syd-dxb-lon-cpt-doh-lax-mbj-lax-gru-asu-bog-asu-gru-jfk-yvr-hkg
80230mi

(though only 78,941 mi if direct flights are calculated based on direct distance...)

direct flights are indeed calculated on the direct distance if ticketed as a single coupon.