So on your transaction history page, you click through to the "Future Transactions" tab and is it still listed there vs. being in the "Completed Transactions" tab? That would be a problem and you need to contact Airbnb. Search for the help guide.
However if it is in your "Completed Transactions" your payout will be based on the method of payment which could be up to 7 business days and you are only at day 4 now :
Processing time
After Airbnb releases the payout, it takes some additional time for the money to get to you. The average processing time for each payout method is:
- ACH / Direct deposit: Up to 3 business days
- Bank transfer or international wire: 3–7 business days
- PayPal: Within 1 business day
- Western Union: 1 business day (US Pacific Time)
- Payoneer Prepaid Debit Card: Within 1 business day