Had family originally booked AMD-BKK-NRT-ORD via Thai / ANA using UA miles

Thai has since cancelled the AMD-BKK route.

UA says no Jet Availability to go from AMD - DEL/BOM on 1/21 - 1/25.

What are my best options? Which domestic carriers will allow 2 bags 23KG each when connecting to another carrier's Int'l Ticket to the USA?

Jet says only domestic allowances apply if not on same itinerary.

Need to get them from AMD to either DEL or BOM. Flights from DEL/BOM to Chicago are on Lufthansa / Asiana with 2 Bags 23KG allowed.

Thanks!