If you can't find cheap airfare to Guangzhou, have you considered r/t by air to HKG (which has cheap airfare), then by land to Guangzhou? Take the A43 airbus from HKG airport (follow the signs in the terminal to the airbus terminal downstairs) to Fanling (Luen Wo Hui) (HK$28). Takes about 40 minutes and runs every 40 minutes or so. The A43 starts at HKG and ends at Fanling, so you can't get lost. At Fanling, the bus drops you off at the KCR East train station. Take KCR East train one stop to Lo Wu border crossing. (About HK$25 and a five minute ride. Again, you would have to work to get lost.) Walk through passport control (Hong Kong departure, China arrival) and as you leave the building, the Shenzhen train station is on your left (a huge sign in English). The train to Guangzhou leaves about every hour, cost is less than 50 RMB and train takes maybe an hour. Total travel time from HKG by bus and train to Guangzhou is about 3 hours. Total cost about US$15. If you want really cheap airfare from LAX to HKG, consider a courier flight with Jupiter Air (http://www.jupiterair.com/courier/courierflights.html) ... about $250-350 r/t, but the JAL flight used to arrive at HKG to late to clear Lo Wu customs ... you might have to sleep in the airport until morning.