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

Good detective work, knope; thanks for the tip.

BTW, your FF account numbers are so easy to remember.

What are the chances of that happening

No matter how I sign in, I can only see one reservation from almost a year ago under "my account." There is another section, where I have to log on again, which does show my reservations but times out when clicking on them. This is a "my bookings" which I can only appears when searching for a reservation. Hopefully a lot of the issues with the website will be fixed soon. Can't even search for flights now which might be a sign they are in the process of rolling out the new site.

Still seeing trouble? I've been messing around looking for schedule changes for awhile and have not had issues. Was it giving you an error message, or timing out, or something?

It was timing out, seems to be working better now. The tabs of alternative dates when looking for flights was completely gone a few minutes ago. It's back again, but only one date on either side of the chosen date. It might be something on my end, but their website has never seemed very reliable to me no matter my location.

The alternate-days tabs have been disappearing and reappearing now and then, which is more than a little peculiar. It's supposed to be 3 days on either side, but sometimes it has been showing 2, 1 or even 0 days on either side.

I use the "full week at a time" function to check loads on upcoming flights and it is available (is it should be) most of the time, but not always -- especially as of late.

There were problems with the website late this afternoon, of which F9 was aware.

Problems were fixed.