However, even with a change of equipment, if there's one flight number, it normally only shows as one flight segment on AA.

Yes there are many direct flights. Three of the longest ones are SYD-LHR via DXB, MEL-LHR via DXB and SYD-JFK via LAX.

I have AA64 booked for early Nov. MIA-ZRH (via JFK). It's showing up in AA MMB as 2 sectors. It has a narrow body > wide body 3 hour stop in JFK.

Interesting. Wonder if it's the same on domestic flights.

It will show was two "segments" but is one flight and should be treated as such for a xONEx and mileage earning.

AA added a lot of these when they merged with US.

Other good ones:
AA36/37 SFO-DFW-MAD
AA94/95 SAN-JFK-MAD
AA60/61 MIA-DFW-NRT
AA66/67 LAX-MIA-MAD
AA70/71 LAS-DFW-FRA
AA137/138 DCA-DFW-HKG
AA175/176 DCA-DFW-NRT

I have a quick question about North America routing rules/conditions for my current DONE3 ex-Japan. I have already flown the following segments (I am currently in New York City): NRT-xORD-JFK

I am planning changes to the remaining (original) routing made at the time of purchase. I wonder if the following North American segments would be allowed:

NRT-xORD-JFK-LAX-xORD-BOS-JFK-MIA-DOH ... etc TBD

I would like to know whether I can have the second stopover in New York City. I avoided the USA transcontinental direct flight rule by using ORD as my connection.

I realize this North American routing is not maximizing mileage accrual, but before I consider that more fully, I need to make sure I can have a second stopover in JFK or LGA, as that is a necessary stop I need to make.

Thanks in advance for you help!

That's the bit I also was surprised to hear. Especially if it's consistently the case.

Looks good to me. You can revisit a city no problem.

Thanks for the clarification zoombee!

I can only report my own experience, which, admittedly, was a bit more than 12 months ago. May have changed.

Back with one more question: if I book a flight segment, and then later want to change that to a surface segment (with same cities), will I incur a $125 charge? The rule sheet does not seem to address this situation.

Yes.

It's still the case. Try the routes I posted using the online tool. Put MIA-NRT in and AA 61 is an option.

Yes. xONEx permits more than one stopover in the same city/airport (unlike xRWSTARx the star alliance around the world product).

xONEx does not allow the same route to be flown more than once in the same direction - you're fine for this too.

What if instead of changing the flight segment to a surface segment, I simply missed (didn't fly) that segment? I see a few old threads indicating that this won't affect future segments, but no recent posts.