How do you calculate Alerts API billing?

1) Evaluation Plan

The Evaluation plan is a free plan intended for developers who are evaluating the Flex APIs and is available only for new accounts. You are allowed to create up to 500 free flight alerts on the Evaluation Plan. Deleting your test flight alerts will not reset the counter. Customers are expected to upgrade to the Contract Plan before launching their product using the Alerts API, or when they have exceeded the Evaluation allowance.


2) Contract Plan

A single flight rule may send out dozens of alerts (example: a significantly delayed flight may send out many more flight alerts than a routine flight that departs on time). You are charged the same fee for a single flight rule regardless of how many alerts are sent based on the flight rule.

Flight rules can be created many months in advance. You are charged for flight rules that are active after the scheduled departure of the flight. You are required to delete any flight rules prior to scheduled departure if you do not wish to be billed for them.

You will see the following terminology on your bill:

a) Flight Rules on Day After - Any flight alert monitored by our system and not deleted. Meaning you setup the monitoring rule, FlightStats monitored the flight, and the rule was not deleted.

b) Flight Rules Day of Delete - Any flight alert deleted within 24 hours of rule being active. Meaning you setup the monitoring rule, but the rule is deleted within 24 hours prior to the scheduled departure of flight being monitored. Any rule not cancelled prior to 24 hours before the flight is scheduled to be active is counted in your billing. In order for rules to be deleted and to not to be charged for the rule, it needs to be deleted more than 24 hours in advance.

Example: It is common for travelers in the United States to fly to visit relatives for the Thanksgiving holiday in November. Since this is a busy travel weekend, users book their travel months in advance and may add a flight alert early. If they tried to buy their ticket in November, the available flights may be sold out so they make alternate plans and do not add a flight alert. So you may see very few flight alerts created in November for travel in November. But you may be billed for a high number of flight alerts in November where the flight alerts were created months earlier. FlightStats does not bill you at the time the flight alerts are added. Furthermore, if users cancel their travel plans and delete the flight alert before the scheduled departure date, you are not charged. You are only billed for the flight alerts that are active in our system on the scheduled departure date.

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