Pricing and billing
The price for a Dedicated Host varies by payment option. For more
information, see Amazon EC2 Dedicated Host
Pricing
Payment Options
On-Demand Dedicated Hosts
On-Demand billing is automatically activated when you allocate a Dedicated Host to your account.
The On-Demand price for a Dedicated Host varies by instance family and Region. You pay per second (with a minimum of 60 seconds) for active Dedicated Host, regardless of the quantity or the size of instances that you choose to launch on it.
You can release an On-Demand Dedicated Host at any time to stop accruing charges for it. For information about releasing a Dedicated Host, see Release Dedicated Hosts.
Dedicated Host Reservations
Dedicated Host Reservations provide a billing discount compared to running On-Demand Dedicated Hosts. Reservations are available in three payment options:
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No Upfront—No Upfront Reservations provide you with a discount on your Dedicated Host usage over a term and do not require an upfront payment. Available in one-year and three-year terms. Only some instance families support the three-year term for No Upfront Reservations.
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Partial Upfront—A portion of the reservation must be paid upfront and the remaining hours in the term are billed at a discounted rate. Available in one-year and three-year terms.
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All Upfront—Provides the lowest effective price. Available in one-year and three-year terms and covers the entire cost of the term upfront, with no additional future charges.
You must have active Dedicated Hosts in your account before you can purchase reservations.
Each reservation can cover one or more hosts that support the same instance family
in a single Availability Zone. Reservations are applied to the instance family on
the host, not the instance size. If you have three Dedicated Hosts with different instances
sizes (m4.xlarge, m4.medium, and m4.large)
you can associate a single m4 reservation with all those Dedicated Hosts. The
instance family and Availability Zone of the reservation must match that of the
Dedicated Hosts you want to associate it with.
When a reservation is associated with a Dedicated Host, the Dedicated Host can't be released until the reservation's term is over.