Great question — answering as the UphillTech team:
I can't give you a single tip that would work for you or anyone else. Ticketing and air fares are a serious business and there is no single tip that can give you the kind of knowledge to find these fares. Not every ticketing agent is qualified to come up with these nice prices, you can visit a travel agency and two different agents would give you two different prices (I had first hand experience). They need to have deep knowledge in many things, including the reservation system, IATA rules, airlines` rules, etc. This kind of knowledge has no single source, it is an academic knowledge (rules and regulations) combined with technical knowledge (reservation systems) combined with real life...
Full answer by user10051: https://travel.stackexchange.com/a/24810 (CC BY-SA 3.0).
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