Originally Posted by
zkzkz
ok, here are all their one-stop flights with their stops listed. "=" means they'll sell you a ticket for that leg but "-" means that leg isn't listed in their schedule.
It doesn't look like you can book DME-IAH or vice versa. Nor MXP-BCN or KHI-LHE or AUH-JED or JNB-CPT.
SIN=HKG=SFO SQ2/1
SIN=NRT=LAX SQ12/11
SIN=ICN=SFO SQ16/15
SIN=FRA=JFK SQ26/25
SIN=MXP-BCN SQ378/377
SIN=KHI-LHE=SIN SQ460
SIN-DME-IAH SQ62/61
SIN=DXB-RUH SQ454/453
SIN=AUH-JED SQ456/455
SIN=AUH=KWI SQ458/457
SIN=JNB-CPT SQ478/479
SIN=DXB=IST SQ490/491
SIN=DXB=CAI SQ492/493
SQ has traffic rights between IAH and DME. They do not have traffic rights, even for their own stopover passengers, on the other sectors you listed.
If you originate at LHR on an SQ-only xEZSQ fare, the only place you can go is SIN. The first coupon has to be on SQ, and that's the only destination they serve ex UK. You can add MI flights as sidetrips from SIN for an extra charge, but MI is not included as a carrier in the basic EZSQ fare.
Finally, that fare is only for sale ex-UK, ex North America, and ex-SIN. You cannot originate at any other point on that type of fare. It'll show as on offer ex-TPE, too, but it's not actually bookable originating there under the rules.