Grandma, two grand aunties, mummy and I flew to Jeju-do/Jeju island from Busan on Jeju Air 2.25pm-3.20pm for about US$57 per person. The domestic flight took only 55 minutes. The return flight departed Jeju at 11.20am and reached back at Seoul at 12.25pm. It was also just a 65 minutes flight. We booked too late and all the discounted fares were sold out and we got ours at about US$78. So we spent a total of US$135. If you watch the fares closely on different airlines, you may be able to get a return flight for as low as US$40, 30% of what we paid.
You can book your domestic flights in Korea via any of the following airlines: Jeju Air, Eastar Jet, Jin Air, Air Busan, T’way Air,
These budget airlines fly to nearby places such as Japan, HK, Thailand, etc.
Two relatives joined us for Jeju trip, so we rented a 7-seater Chevrolet Orlando for our weekend trip here. Mummy was the driver. Take a shuttle bus outside Gate 5 of Jeju International Airport and go to the office of respective car rental company to complete the rental procedures. Mummy made her reservation online though.
Note: You need to have an International Driving License in order to rent a car in Jeju Island. Driving is the easiest to get around with GPS installed. Alternatively, you can hire a taxi or a jumbo taxi for larger group on a daily basis for a fixed fee. Then you don’t have to worry about driving. But most of the drivers cannot speak English. Taking public transport is the cheapest but most time consuming method. You may have to walk a lot more too. 
Our accommodation was only 10 minutes drive from the airport. So we put down our luggages and walked 15 minutes to the Jung-ang Ro Shopping Street Alley Market and the famous Dongmun Market Place. It’s a traditional Korean market selling home-made kimchi, side dishes, local food, fruits, and Jeju specialty ORANGE.
Our accommodation (which I do not recommend):
Apartment – Entire home/apt · 이도일동, 제주시, 제주특별자치도 690-021, South Korea
My review:
Six of us stayed in the 3-room flat near the airport for three nights.
Review of the host:
The host was very caring. She contacted us to make sure we can reach the place. She was kind to show us around the house when we first arrived and gave us rice/eggs to eat. She also provided us with clean blankets and towels to use. She was responsive in answering all queries and gave us directions and suggestions to the nearby market and restaurant on the first day. She installed a new aircon in the room and provided electrical mosquito killer. She can speak English well.
Review of the house:
The pictures look much better than the house itself. The house looks better at night probably that’s why the pictures were all taken when the lights were switched on. It is not well maintained and the furnitures are worn out. The balcony and laundry place look abandoned. The house is packed with leftover household items. The fridges are filled with half used sauces and food. The house has a bad smell, probably from those leftover food. The shower water is too soft for a comfortable shower. There are also mosquitos in the house. We were out in the day and only back for the night and could not sleep well due to the loud wind blowing sound coming from the shabby windows. It’s very near the airport though, takes less than 10mins drive.
Suggestions:
It’s better that the host cleans up the house and leaves the travelers a better living environment. She should also label the items in the house. No English instructions at all for washing machines and other electrical devices. We could not connect to the wifi there.
We had a bit of misunderstanding at the end but solved with mutual agreement. We expected a much better apartment environment with the price charged. If not that we wanted to stay together, it’s much wiser to choose a hotel at the same rate then. Please make your choice wisely.
koaladidi 