[TAIPEI - SAN FRANCISCO VIA GUAM]
I flew TPE to SFO recently, which had an added technical stop in Guam. If I understood the explanation correctly, the technical stop was added because non-TW based flight crews are no longer allowed to stay overnight in TW. So for this flight, they were flying to TPE with a Guam-based crew and then in Guam the Guam-based crew gets off and the SFO-based crew gets on. No passengers get on or off.
Sure this changes the economics of keeping certain routes going (flight was 16 hours instead of 12) so if the situation continues to deteriorate, I’m guessing airlines might have to make adjustments to these routes, like reducing flights where the costs are higher and/or demand is decreased.
Maybe something to think about when planning travel.