In Ideal conditions, a cross-chain transaction takes between 3-30 minutes.
However, blockchains work as an independent networks, and they behave differently. Some RPC issues on chain A, Other Gas spikes on chain B, or Perhaps Upgrading on Chain C, all of this can contribute to Cross-chain transaction time! A delay is unavoidable but rests assured Funds are Safe. Once, Issues are solved funds will arrive at target chain automatically.