Hi all,

This year I have several flight wilh Star Alliance flights.
I used several miles calculators and it seems that Asiana or Agean are the most interesting programs.

Now it is not clear to me which airline I need to add in the calculators. For example I have booked flights from BRU to DPS via FRA/SIN. First leg is LH, second and third leg are SQ.
Flight BRU-FRA is LH flight number; Flight FRA-SIN is LH flight number (operated by SQ) and Flight SIN-DPS is SQ flight number. All has been booked through LH.
The question I have is which Airlines do I need to add in the miles calculator? For the second leg FRA-SIN is it LH or SQ?

I did a 2 calculations as follows based on the booking classes:

• Calculation 1 (Agean: 12772 // Asiana: 14550)
  • BRU-FRA (T) - Lufthansa
  • FRA-SIN (T) - Singapore Airlines
  • SIN-DPS (N) - Singapore Airlines
  • SIN-FRA (T) - Singapore Airlines
  • FRA-BRU (T) - Lufthansa
• Calculation 2 (Agean: 0 // Asiana: 6886)
  • BRU-FRA (T) - Lufthansa
  • FRA-SIN (T) - Lufthansa
  • SIN-DPS (N) - Singapore Airlines
  • SIN-FRA (T) - Lufthansa
  • FRA-BRU (T) - Lufthansa

Used calculator: WhereToCredit

As you can see it is a big difference. So which one is correct?

Thanks!