Cheap-ish flights to Seoul during the Easter Break. Easter holidays this year are aligned well with an ANZAC day holiday coming up as well.
There are some good China Eastern fares available via SkyScanner search with 3 to 4 hour layovers which is a lot better than 30 hour layovers on cheap flights generally. China Eastern allows 2 x 23kg pieces of checked baggage for Economy passengers.
Sample search:
Departing 19 Apr 2019 (Good Friday) from SYD to ICN (Seoul) via PVG (Shanghai Pu Dong) [Layover 3hrs 50mins]
Returning 27 Apr 2019 (Saturday) from ICN (Seoul) to SYD via PVG (Shanghai Pu Dong) [Layover 3hrs 45mins]
Fare: $643 onwards (depending on whichever company you choose to book with)
There are cheaper fares available if you played around with the dates and wanted a few more days of holiday. Although, layover times might get longer which might give you an opportunity to potentially explore Shanghai for a day!
PS: Direct flights from SYD to ICN return range from $1100-$1400 with Asiana generally being the cheaper of the two airlines that fly direct Sydney to Seoul during the Easter break dates.
PPS: Fares available/true at the time of posting
This is a great price for going to Seoul.