Most cards can 儲分換飛行, but I think the rate is not worth, eg for Asia Miles:
HSBC, BOC, Standard Charter Card rate: 12 簽賬積分 = 1 miles
If you want to mainly redeem air ticket, you may consider 國泰航空Citibank 卡 for better rate.
簡介
國泰航空Citibank 卡為您提供一個最快、最直接的方法,讓您於國泰航空及15家世界知名的航空公司,換取免費機票、客位提升獎勵及同行貴賓獎勵機票,飛往全球超過890個目的地。
尊享優惠
本地簽賬:
每簽賬HK$8 = 1「亞洲萬里通」里數1 (免費自動轉換里數2)
海外簽賬3: Platinum Select卡﹕ HK$8 = 1.5「亞洲萬里通」里數
Platinum Select Preferred卡﹕ HK$8 = 2「亞洲萬里通」里數
免費獲享馬可孛羅會會籍4
憑此卡於
www.cathaypacific.com5 訂購機票可獲雙倍里數
透過國泰航空機艙銷售服務於機上選購各種產品 (不包括免費贈品、送貨到府上服務及以心意禮券付款),每HK$5可獲贈2「亞洲萬里通」里數。每次購物之最低消費為 HK$500 (淨價)。6
精選非凡禮遇:
無論在本港以至世界各地,均可憑卡尊享逾百款白金級禮遇
請即申請,除豁免首年年費,批發後更可獲享
高達6,000「亞洲萬里通」里數7
Otherwise I think cash rewards is the most useful and direct benefits, I think recently the Standard Charter AE card is good, as it is the highest cash rewards program I have seen.
1) For all loval and oversea, can get 1% cash rewards
2) For purchases at selected stores (most department store like SOGO, SEIBU and supermarket) can get 8% cash rewards
http://www.standardchartered.com.hk/chi/cb/creditcard/card_amex.html
Normally: 25,000 pts can redeem $100 cash coupon for supermarkets or shopping mall for most cards, but using this card 20,000 already can reward $200 and for selected store already $1,600 which is great I think!