Originally Posted by
joshwex90
I asked this question slightly differently in a different thread, so those who have seen the question, please bare with me: On CO, what are the PRACTICAL differences between their F, J, D, and C fares (besides price)?
(They all earn the exact same mileage, and from what I understood, though not much, they all seem to have the same refund, cancellation, change policies...)
The secret is in the fare rules. Paying more for the higher bucket usually purchases more flexibility.