## First - **F**: Full-fare First Class. Offers maximum flexibility, including free changes and refunds.​ - **A**: Discounted First Class. Provides a premium experience with some restrictions compared to full fare.​ ## Business - **J**: Full-fare Business Class. Allows for maximum flexibility with free changes and refunds.​ - **R**: High-fare Business Class. Slightly discounted with minor restrictions.​ - **I**: Discounted Business Class. More restrictions apply, including potential fees for changes.​ - **D**: Deep Discount Business Class. Significant restrictions, often non-refundable and limited change options.​ ## Premium Economy - **W**: Full-fare Premium Economy. Offers flexibility with free changes and refunds.​ - **P**: Discounted Premium Economy. Includes more restrictions, such as change fees and limited refund options.​ ## Main Cabin - **Y**: Full-fare Economy. Provides maximum flexibility with free changes and refunds.​ - **H, K, M, L**: High-fare Economy. Slight discounts with some restrictions.​ - **V, G, S**: Discounted Economy. More restrictions apply, including change fees.​ - **N, Q, O**: Deep Discount Economy. Significant restrictions, often non-refundable with limited change options.​ - **B**: Basic Economy. Highly restrictive with no changes or refunds allowed.