If your flight booked through Expedia is delayed, the airline typically manages rebooking and compensation, as they control the flight schedule. However, you can contact Expedia for assistance with rescheduling or alternative options. Compensation for delays depends on the airline’s policy, so check directly with the airline as well.
Source: https://community.lumivero.com/s/question/0D5Jw00000eXQuxKAG/--