On the other hand: not using a date picker is awesome. I've been using nl date parsing on my own sites lately and it's The Best.
Then I tried to report the airport issue to you by clicking on the feedback button on the right. After entering my feedback, upon clicking on 'Submit', the feedback window showed me something like 'there was a problem sending your message...' I tried again, to no avail - sadly, the feedback form didn't tell me what went wrong or what to do next, it only offered me to add a 'sad' emotion to my message. Which wasn't of much use, because the 'problem sending the message' prevented me from showing you my sadness (Ironically, the third party company that makes your feedback system has named itself 'getsatisfaction'). Well, I closed the feedback window and found another way to post my feedback: http://getsatisfaction.com/wundrbar/topics/i_didnt_want_to_p...
I only had to create an account, submit a fake email address, enter a new password (twice) make up a new username and enter a captcha. After that, I had to enter the password again (twice), because it has to be at least 6 characters long. And, of course, enter the captcha again. After that, I was allowed to post my comment!
:-)
we'll also fix the frankfurt issue. thanks for the tip. :)
the way to specify an airport if the top match is not right is just to keep typing. eg: london => london all airports (lon); london gatw => london, gatwick (lgw); lon hea => london, heathrow (lhr)
similarly: sa fr => san francisco; sa di => san diego
typing frankfurt/main didn't work because the slash was confusing the interpreter. i'm fixing that right now.