Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kuala Lumpur to South Bend as you normally would.
For a flight from Kuala Lumpur to South Bend, you will be flying into South Bend/Michiana. South Bend/Michiana (SBN) is just 5.5 km from the centre vof the city. South Bend/Michiana is the only South Bend airport and it handles 0 inbound flights from Kuala Lumpur per day. 0 airlines have flights to South Bend/Michiana from Kuala Lumpur on a regular basis.