# Searches

Air searches.

 - [POST /air/search/airAvailability](https://developer.travelport.com/apis/flights/searches/createairavailability.md): Air Availability returns scheduled flights between a specified city pair on a specified day and time and indicates whether seats are available on those flights. Air Availability is a full payload requ
 - [POST /air/catalog/search/catalogproductofferings](https://developer.travelport.com/apis/flights/searches/createairsearch.md): The Search API returns offers for flights between specific origin and destination (O&D) pairs. You can set the Search request to return offers for the full itinerary (a journey-based search), or for o
 - [POST /air/catalog/search/catalogproductofferings/buildnext](https://developer.travelport.com/apis/flights/searches/buildnextairsearch.md): The Next Leg Search API returns offers for the next leg of an itinerary after a leg-based round-trip Search. The leg-based Search response returns offers for the outbound leg of the itinerary, and Nex
 - [POST /air/catalog/search/catalogproductofferings/buildoptions](https://developer.travelport.com/apis/flights/searches/buildoptionsairsearch.md): The Flight Specific Search API Reference Payload request returns additional upsells, up to 99, for any product/s returned by Search or Next Leg Search. The reference payload sends an identifier refere
 - [POST /air/catalog/search/catalogproductofferings/premiumflex](https://developer.travelport.com/apis/flights/searches/createflexsearch.md): *This is an additional premium feature, not activated by default. Please contact your Travelport representative for more information on how to activate.* The Premium Flex Search API is the first step
 - [POST /air/catalog/search/catalogproductofferings/buildpremiumflexoptions](https://developer.travelport.com/apis/flights/searches/buildflexoptionsairsearch.md): *This is an additional premium feature, not activated by default. Please contact your Travelport representative for more information on how to activate.* With TripServices Premium Flex Flight Specific