I was reading a reply in a post by "BenjaminNYC" and he was able to pull up the available fare classes for some given flights:

Flight Availability - SEA to BJX - 12/21/06
Airline Flight Stops Departure Arrival Aircraft Meal Available Classes
4 Flights Returned
1 Connection
CO 785 0 SEA
12/21/06 07:15AM IAH
12/21/06 01:19PM 73G B A9 D7 Z0 Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
CO 2232 0 IAH
12/21/06 02:40PM BJX
12/21/06 04:55PM ERJ S Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
1 Connection
CO 166 0 SEA
12/21/06 08:30AM IAH
12/21/06 02:42PM 738 B A9 D9 Z1 Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
CO 2233 0 IAH
12/21/06 05:35PM BJX
12/21/06 07:46PM ERJ S Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
1 Connection
CO 1823 0 SEA
12/21/06 12:20AM IAH
12/21/06 06:20AM 739 S A9 D0 Z0 Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
CO 1773 0 IAH
12/21/06 09:25AM BJX
12/21/06 11:48AM 735 B C8 D0 Z0 Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
1 Connection
CO 366 0 SEA
12/21/06 01:25PM IAH
12/21/06 07:33PM 738 L A9 D9 Z9 Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0
CO 2470 0 IAH
12/21/06 09:15PM BJX
12/21/06 11:28PM ERJ S Y0 H9 K0 N0 B0 O0 V0 U0 Q0 I0 S0 W0 T0 X0 L0

Where can you perform this type of search to get this information?

I've looked all over FT and could not figure it out.