Hi guys. I would definately get your flights from Heathrow, it will be cheaper. - We have flown with Thai Airways, Qantas, Singapore and last year with Asiana and we are going again in Feb 2013 with Asiana again as the service was just as good as the others I mentioned previous ( and cheaper ). We enjoy the free stop over on the way back in Seoul South Korea. Hopes this helps
Tony & Donna :-D
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