I am flying China Southern Airlines from Sydney to Bangkok via Guangzhou in April 2014.

I am flying China Southern Airlines from Sydney to Bangkok via Guangzhou in April 2014. I will be flying on an Airbus A380 from SYD to CAN leg and a 737 to BKK. Have not confirmed what airline I am flying from BBK to Chiang Mai and Chiang Rai to BKK. Then I will be flying back on China Southern to SYD. Could you please give me some advice on what I should expect on China Southern and some Thailand Carriers?

The SYD to CAN leg will be a fully flat bed in Biz, without direct aisle access. In Economy it is just a normal 3-4-3 layout with PTVs - comfortable, but really nothing special. The 737 has Business in a 2-2 layout, Premium Economy with more legroom and Economy (all without IFE). Some suggestions from BKK to CNX/CEI would be the THAI fleet (only way from BKK to CEI) but watch out for the Smile fleet - they're low cost. Bangkok Airways is a good suggestion although it cannot be considered a legacy carrier.

Sorry. There is direct aisle access. Staggered layout.

I looked up the prices for Thai and it was quite expensive because I am taking 4 adults (including me) and 1 child. Are they going to eventully going to reduced the prices closer to the date?

Sale cannot be guaranteed. You could always look at an LCC such as Thai AirAsia.

Any Inflight Entertainment on Thai's Boeing 747s on Domestic Routes?

Don't think so, Mitchell.

If you don't mind flying out of DMK try NOK Air cheap prices and also include 15kg of baggage and small snack/drink on board. Also as already stated THAI and Bangkok Airways out of BKK.

Do you plan to fly straight thru to Chiang Mai or do you intend to spend time in BK?  If your preference is to go straight thru then using LCC like Thai Air Asia and NOK is a pain as they leave from DMK airport which is a hike from Suvarnabhumi. So that pretty much leaves you with Thai or Bangkok Airways.  

Spending time in Bangkok for 2 -3 nights

If spending  2-3 nights in BK then book whatever is cheapest.and most convenient. Thai Air Asia and NOK are good LCC and as the flight is short they are bearable.

What meals are onboard the following China Southern Routes SYD - CAN, CAN - BKK, BKK - CAN, CAN - SYD.