Originally Posted by
Flying for Fun
I can confirm that I flew JNB-HKG//HKG-BOS last February on a single award. I found two J seats available at about 3 months out at 62.5K miles each. At T-11 days 1 F opened on the HKG-BOS segment. I called and upgraded one to F for 7.5K miles and a difference in taxes of... wait for it... $3.85.

The same applies to fights to/from South Asia, India & the Middle East.
James
What credit card did you find most optimal to charge that $3.85 and how low did it take for you to make the choice. Dry humor. Hope it came through in the text.