I started planning to take an RTW this coming summer ages ago, and fairly recently decided on an AONE4. My goal is to visit all of these places (other than the US cities) but also to maximize mileage (I'll go from statusless to EXP only using this trip!). I'd love any advice about different routings or really anything else.

I'm based in Seattle but will fly out of JNB as it is about the same price to fly J from Seattle round trip and start in South Africa as it is to just start in Seattle, and, as a bonus I can actually SEE South Africa, which isn't a possible routing starting in Seattle as Kenya is higher up on my must-see list.

Anyway, here goes:

Positioning: SEA-xDFW-xLHR-JNB then NBO-xLHR-xORD-SEA

1. Johannesburg (JNB) - xLHR - Amman (AMM)
2. Amman (AMM) - Sulaimaniyah (ISO)
3. Sulaimaniyah (ISU) - xAMM - London (LHR)
4. London (LHR) - Singapore (SIN)
5. Singapore (SIN) - Bangkok (BKK)
6. Bangkok (BKK) - Tokyo (HND)
7. Tokyo (HND) - Beijing (PEK)
8. Beijing (PEK) - Hong Kong (HKG)
9. Hong Kong (HKG) - New York (JFK)
10. New York (JFK) - xLAX - xORD - Seattle (SEA)
11. Seattle (SEA) - xLHR - Nairobi (NBO)

I want to keep the HKG-JFK flight on there to experience the longest non-stop flight on OW (and in CX F, to boot!).

Thanks for any and all help!