BT 105 then FR 4605 at Arlanda
Riga → Stockholm → Kaunas
Timetable, Stockholm time
14:10BT 105 from Riga at the gate
11:45FR 4605 to Kaunas leaves the gate
21 h 35 apart on the timetable, overnight
FR 4605 leaves 21 h 35 after BT 105 arrives on the timetable: more than half a day, so not a connection we count.