Since the FF accounts were combined and moved over to the F9 system, I've had several times when upcoming trips were not in my profile. As it turns out, it matters how I log on.

I had a Midwest FF number 098765432
I had a Frontier FF number 12345678910

Everything was combined into a single account using my old Midwest number. So far so good. I can log on in three ways:

(1) I can log on using my (retired) 11-digit Frontier FF number

(2) I can log in using my nine-digit former Midwest FF number

(3) I can log in taking my nine-digit former Midwest FF number, and turning it into an eleven-digit number by putting in two leading zeros

All three methods met me into my FF account, and my account balance, status, profile information, 2011 segements are all correct no matter how I log in.

However...
If I log in with my old YX number in a nine-digit format, I see most of my upcoming trips.

If I log in with the eleven-digit version of my old YX number adding two leading zeros, I see (only) the missing trips.

If I log in with my (retired) Frontier FF number, I don't see any upcoming trips.


So...for anyone who used to have a Midwest FF number and may be missing upcoming trips, try logging onto the Frontier website using the Midwest number with leading zeros to make your FF number eleven digits. Or if you used to have a F9 and a YX number, try logging in with the "retried" FF number.

This explains why my upcoming trips have been showing up hit-and-miss since October. Never caused an issue with miles posting, but it's nice to know how to find missing upcoming trip records.



098765432

00098765432

12345678910