Testing APIs Data Collection

Under Test Environment the APIs use the following data collections:

Flights

Flight Inspiration Search and Flight Cheapest Date Search are built on top of a per-computed cache. The APIs compute every day the most trending options based on past searches and bookings and fills the cache.
Flight Most Booked and Traveled Destinations and Flight Busiest Traveling Period contain the following list of origin and destinations.
Flight Check-in Links contains the following valid airlines.
Airport Nearest Relevant & Airport & City Search contain data from United States, Spain, United Kingdom, Germany and India.
Airline Code Lookup contains almost all airlines.
Flight Choice Prediction, Flight Delay Prediction and Airport On-time Performance APIs have no data restrictions in test.
On Demand Flight Status contains a copy of live data at a given time and real-time updates are not supported. Check out the differences between test and production environment.
Flight Price Analysis contains the following routes in both test and production environments.

The content of Hotel Search comes directly from the hotel providers, so the content might change dynamically. For your test, use big cities like LON (London) or NYC (New-York).
The following table contains a list of valid hotel chains for Hotel Search.
Hotel Ratings offers 24 hotels in the test environment: 10 in London and 14 in New-York. You can find the list here.