Really not surprising the cheapest flights Bangkok to Seoul Korea are on a Korean Airline. I had never heard of Asiana Air until I needed to go to Korea at the last minute and they were by far the best deal going. They are affiliated with Star Alliance so the trip counted towards my United Airlines frequent flyer miles

The flight on Asian Air was full in both directions but the crew did a good job of keeping everyone happy. I really appreciated the blankets that they give you warm and comfortable without being scanty. the food they gave you a choice between a western menu or Korean food all of it was tasty.
The people at the check in were efficient and moved everyone through in good time. I travel with soft luggage and I didn't find anything broken which was nice.

I found this cheap airfare on Sidestep they referred me over to the Asian Air site to book the flight and the process was straight forward and easy to do and it took just a couple of minutes to do with out being stopped 50 times for stupid questions or comment like you get on most airline reservation systems.
Below are links for the countries in Asia, which will lead you to the cities and different types of Asian hotels.
Asia Scuba diving holiday vacations Asia Travel insurance Adventure Asia scuba diving Travel insurance PADI Discover Scuba Diving

check these links for more
Bangkok links
Bangkok Luxury Hotels Bangkok Cheap Hotels Bangkok Discount Hotels Bangkok Budget Hotels Bangkok to Manila Philippines cheap flights Bangkok to Phnom Penh cheap Flights
Korea Seoul Inchon Cheap Hotels Seoul Discount Hotels in Korea
Hawaii links
Hawaii Hotels Waikiki Hotels Waikiki Luxury hotels Waikiki Weather Waikiki scuba diving oahu Maui Hotels Hawaii Kauai Hotels Kona Big Island Hotels