I would like to go to Guangzhou and then high speed train elsewhere from Guangdong South station. The last leg by train is much less expensive and less transition than a domestic fly.
After some search, I find that having HK as a transition to Guangzhou will provide more international flight options with less prices and less overnight overlay. So I focus on selecting a flight to HK, and prefer not to spend a night at both cities, because I am not sure if it's easy to find cheap places to stay. I can stay at the airport overnight.
The last train I need to catch from HK to Guangzhou is 17:12, so that I can catch the last train departing Guangzhou. If I miss it, I will stay at Guangzhou for one night.
The last train I need to catch from HK to Guangzhou is just 2 hours and 27 minutes ahead of the arrival of my flight at HK at 14:45. Is it sufficient, considering taking 2 hour rapid PCR at Prenetics at the airport, and transition to west Kowloon train station during the two hours of waiting for the test result? Where is the checking for PCR test results for entering mainland? Can I find a place to wait for my result, by waiting in the line to be checked.
There's an alternative flight which will arrive one hour earlier and therefore give me one more hour, i.e. 3 hours and 27 minutes, but it has overnight transition and requires me to leave 9 hours early. Reducing my time of travel preparation. Can this flight likely help me catch the train from HK to Guangzhou at 17:12?
If living one night at either city is inevitable, which one is cheaper? If one night in HK, I may just take the 24 hours standard PCR at HK$150. I guess it's more expensive to live in HK than in Guangzhou, so I lean towards t spending HK $500 on 2 hour rapid PCR than HK$ 150 or 250 on 24 hour standard or 12 hour express PCA in HK. Let me know if I am wrong
There's an international flight to Guangzhou $160 more expensive than the previous two, which happen to have almost the same price, and a long overnight overlay. It also requires me to take PCR before the travel at $100 or $200. The arrival at Guangzhou will be at 21:00, and I have to wait till the next day, probably by staying at the airport, less expensive than looking for any place outside the airport
Note $ means US dollars.