Originally Posted by Bagels
It’s not an error – just a crappy routing.
24-hours or less is considered a valid connection on an international itinerary… the routing displayed to you is one way to get to BKK departing on the 20th. Of course, you could also depart the next day and connect via DTW/MSP and simply your journey.
I've gotten routings like CUN-MEM, MEM-DTW (next day) many times...
My understanding is if there is no connection within 24 hours, the next connection is valid. Say you arrive 00:50 day one, the next connection to your destination is at 00:55 (obviously 5 mins is not a legal connection), so the legal connection would be arrive 00:50, depart 00:55 next day, 24 hrs and 5 minutes later. It could even be 36 hours and still be legal in cases where a flight does not operate every day.. (I've done such connections on MH, Malaysian).
Same applies with domestic travel. 4 hours for connections, but if no connection exists within 4 hours, the next connection applies.
Have done both and never had them count as a stopover.
SDF_Traveler