Hi,
Looking at a reasonably good fare from DUB-LHR-JFK-LAX return. The Dublin flight is early morning 06:30. When I did something similar to this a few years ago I managed to get the first Dublin to London flight the night before but I can’t remember how? Using ITA Matrix with the LHR, JFK routing code works but returns the 06:30 flight. When I change to multi city and putting flight 1 the evening before, I can’t seem to get it to price any flights at all when I split the flights up.

Does anyone have an example screen shot or pointer on how to do this? I’ll keep trying in the meantime!