Hi everyone,

I booked a BA flight.
On the return flight, I have I class on the first leg SEA-LHR and J class on the second leg LHR-MXP. But both fare rules are under the same code INN1C5S4.

1. Is that possible that J class follows the rule INN1C5S4? I thought the letter I is only applied to I class.
2. Under INN1C5S4 rule, it seems like there is no change fee to change return flight after I take the departure flight and it will be repriced based on historical data ( if I change to another return flight with the same I/J combination.). But how about the fare rule? do I need to find the new return flight which is also under the fare rule INN1C5S4? Or I just need to look for the I/J combination?

Thank you for all advice and helps in advance