香港去伊斯坦堡有冇直航機﹖

There are direct flight between 香港 and 伊斯坦堡. You can try: Turkish Airlines and Cathay Pacific Airlines. It will take around 11h 10m. Alternatively you can take in-direct flight but journey will be much longer. (e.g. via Singapore (with SIA), Beijing (with AirChina)

According to the agreement signed on 20 September 2000 the two airlines will operate joint flights between Istanbul and Hong Kong.

Hope this helps.

cheapest :try Oasis air to London Gawrick then go to London Luton get Easyjet to istanbul.

return price
HK-->London Gawrick (Oasis, $4000 inc. tax)
Gawrick-->Luton (EasyBus, $200-300, need to check the time table at web urself)
Luton-->Istanbul East Airport ($1500 inc. tax)

~$6000 book as early as u can, otherwise more costy