Why can the revenue for plane tickets be zero or next to nothing?

Budget carriers (such as airasia.com and ryanair.com) don't pay revenue for the tickets we sell. Nonetheless, Aviasales displays the prices for low-cost carriers in the search results to give users the opportunity to find the cheapest tickets no matter what.

Neither we nor our partners receive any reward for sales made through low-cost airlines.

As for low revenue, Aviasales has different financial terms with each agency. Some agencies share a percentage of the ticket cost with us. Some agencies credit us a fixed amount regardless of the ticket cost, or pay a percentage of their markup on the ticket. The agency markup can be very low for some routes.

In all cases, we share 50% of our income with our partners.