I recently linked my BA and Qatar accounts and want to check the rewards flight availability for my flights on Qatar Airways on the Qatar website before I transfer my Avios from BA to Qatar.

However, when I visit the Redeem Avios page on the Qatar website, enter the details and click, "Show Flights," (Redeem on Qatar Airways), I get the error that says, "You do not have sufficient Avios to proceed with booking."

Therefore, how can I search reward flight availability on Qatar Airways on their website?