Hi FlyerTalkers,
I am an international college student currently studying in United States.
This is my first year in America, I have taken Korean Air one way flight from HKG-DTW in Aug 2014, and round trip from DTW-HKG in Dec 2014 and I have put all those miles in Delta Skymiles.
Usually I flight back home once or twice a year(summer break and winter break). It depends on how long the winter break will be.

P.S. I will also have U.S. domestic trips during Thanksgiving break and Spring break, and mostly one intra-Asia trip with family in the summer break.

Soon I am going to join an Europe trip in mid-may.
So the schedule is like DTW-HKG (stay home few days) then HKG-LHR LHR-HAM HAM-STR and take bus to Italy then VCE-LGW and stay London for two more weeks then LHR-HKG and HKG-DTW in the late August.

There is the upcoming itineraries:
DTW<->HKG in All Nippon Airways (Round trip)
HKG<->LHR in Singapore Airlines (Round trip)
LHR ->HAM in British Airways (One way)
HAM->STR in Air Berlin (One way)
VCE->LGW in British Airways (One way)

All are economy classes and I haven't put these miles in any program.


Questionnaire
In order for FlyerTalkers to better assist you, please copy and paste the following questionnaire into your post and provide the requested information:

1. What is most important to you in a frequent flyer program (FFP)?
(e.g., upgrades, priority services, baggage allowance, good award redemption rates, better award access, lounge access)
Reply:Free flights>Upgrades>Lounge access

2. How many miles do you usually fly each year? How many flights/sectors?
(e.g., <25000, 25000-50000, >50000 miles and <25, 25-50, >50 flights?)
Reply: <25000 miles and <25 flights

3. What fare class do you usually buy?
(e.g., first, business, premium economy, economy)
Reply: Economy

4. Are you able to choose your airlines and/or class of service? Do you travel for work and/or pleasure?
Reply: Yes, I am able to choose my airlines and class of service, and I usually travel for study abroad and pleasure.

5. Which routes do you fly most often
(e.g., U.S. domestic, transatlantic, intra-Asia)
Reply: Transatlantic

6. What is your home airport?
(e.g., SFO, LHR, HKG)
Reply: HKG

7. Do you have status in any FFP? What is it? How miles do you have banked in a FFP, if any?
(e.g., AA Executive Platinum, UA 1K, LAN Comodoro)
Reply: Yes, I currently have DELTA Skymiles (SkyMiles Member) and 26869 miles have banked in this FFP (15000miles are customer relations bonus).

8. What are your preferred airlines, if any?
Reply: Cathay Pacific, British Airways, ANA/JAL, EVA and Delta.

I really appreciate all your help!