No bags. If you want to fly lo-service airlines like BA from LGW, you get what you pay for.
http://www.britishairways.com/travel...k/public/en_gb
The following frequent flyer members can check, free of charge, an additional bag regardless of their class of travel (except hand baggage only fares). This applies to all customers travelling on the same booking.
British Airways Executive Club Gold
oneworld Emerald