Let’s keep things simple. Multiple payment methods can’t be used when you’re booking a reservation and paying for it in full.
The exceptions are when:
You can’t split the total cost of your Airbnb stay or experience across multiple payment methods. For example, you can’t pay using 2 different credit cards, or pay using a credit card and Paypal.
For these reservations, you’ll have one or more future scheduled payments, and you can use a different payment method for upcoming payments. Find out how to change your payment method for upcoming payments.
If you have a coupon, gift card, or travel credit that covers part of the cost of your reservation, you’ll use another payment method for the remaining cost.