In the SpaceX video Starship | Earth to Earth they show the flight time from Hong Kong to Singapore to be 22 minutes.
What's taking so long? It's only 4 hours by airplane (and US $275!)
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We could compare this to the aborted launch of the Soyuz in 2018.
The abort occurred at an altitude of approximately 50 kilometres (31 miles); the spacecraft reached an apogee of 93 km (58 mi) then landed 19 minutes and 41 seconds after launch. At 08:55 UTC the search and rescue team was deployed to recover the crew and the spacecraft, which had landed 402 kilometres (250 mi) from the launch site.
So the Soyuz had an emergency separation at 50 km, and this resulted in "only" 402 km of distance covered in 19 minutes. The Starship would still be accelerating past the 50 km, so it's reasonable that in about the same time (22 minutes) and if assume a similar apogee of around 100 km it would cover more distance - 2,600 km (the distance between Singapore and Hong Kong). And if one might argue that the Soyuz took so long because it was slowly landing, this seems to be countered by the fact that "the crew experienced about six to seven times Earth's gravity".