Just got an email from AMEX that offers up to $200 credit for airline fees charged to your AMEX card. This might only be for Platinum card holders, but for those of you who are it is worth getting all over it.
This is what airline fees they will credit you for and found it quite interesting you can even use it for club renewal as well:
Eligible incidental fees include:
clebert I though of you when I got this just in case you are able to take advantage of it for your one way ticket issue.