IATA Exchange Rates
International air transport depends on the ability to establish tariffs, use the service of interline partners and to settle amounts due for interlining traffic in the agreed settlement currency. In order to establish selling fares and to perform interline invoicing and settlement, airlines must have rates of exchange between world currencies. Rules have been developed and maintained so that exchange rates are monitored against base currencies such as USD, GBP, EURO.
IATA Exchange Rates are the sole source to support interline billing and establish tariffs.