Summary

When travelling on a oneworld marketed and operated flight:
BA Gold (oneworld Emerald)

Members (plus one guest) have access to all available and accessible oneworld first and business class departure lounges

BA Silver (oneworld Sapphire)

Members (plus one guest) have access to all available and accessible oneworld business class departure lounges

BA Bronze (oneworld Ruby) and BA Blue

Members are not granted access according to their tier but may still have access to departure lounges depending on their class of travel that day.


Taken from the oneworld website: Emerald or Sapphire level top-tier members of oneworld airlines' frequent flyer programmes have access to almost 550 departure lounges across the globe, no matter which oneworld airline you are flying. In all cases, lounge access eligibility is based on:
Departing carrier - you must be flying on your next onward segment, on the same day, on a flight marketed and operated by a oneworld member airline,

AND

Frequent flyer tier status - you must present a current frequent flyer card equivalent to oneworld Emerald or Sapphire status,

OR

Class of travel (see below) - you must produce a First or Business Class boarding pass for the journey's international segment on the same day.


Guesting privileges qualified by status
With regard to oneworld lounges, once again the guesting rules are relatively straight forward.
BA Gold (oneworld Emerald)

Members may invite one guest into a oneworld first class or business class lounge. Both the member and guest must be travelling on a oneworld operated and marketed flight, though not necessarily on the same flight or same carrier.

BA Silver (oneworld Sapphire)

Members may invite one guest into a oneworld business class lounge. Both the member and guest must be travelling on a oneworld operated and marketed flight, though not necessarily on the same flight or same carrier.


When it comes to the extra provisions BA offers its own customers at its own lounges, the rules differ slightly from the standard set of oneworld rules
BA Gold Guest List members

• BA Concorde Room and Concorde Bar:
  Member flying BA First plus two guests.
• BA owned First lounge:
  Member plus two guests when travelling separately on different BA or oneworld flights irrespective of class of service
  Member plus five guests when travelling together on the same BA flight (subject to capacity controls)
  Member plus one guest when travelling on oneworld marketed/operated flights other than BA
  While not guaranteed, access may also be granted when travelling on a BA marketed/non-oneworld operated flight such as BA codeshares on Vueling or Aer Lingus (subject to capacity controls/local arrangements). Ticket must have 125 e-ticket number. One guest only and must
  be travelling on the same flight
• BA owned Club lounge:
  Member plus two guests when travelling separately on different BA or oneworld flights irrespective of class of service
  Member plus five guests when travelling together on the same BA flight
  While not guaranteed, access may also be granted when travelling on a BA marketed/non-oneworld operated flight such as BA codeshares on Vueling or Aer Lingus (subject to capacity controls/local arrangements). Ticket must have 125 e-ticket number. Guest must be travelling on the same flight
• BA Departure Spa treatments:
  Member has access when flying BA long haul. No guestsl
• BA First pre-flight dining:
  Member flying BA First plus two guests
• BA Club pre-flight dining:
  Member flying BA Club World plus two guests
• BA Arrivals lounge:
  Member plus one guest (both flying BA long haul)

Concorde Room Card holders

• BA Concorde Room (at LHR T5 and JFK):
  When travelling on any BA or oneworld operated flight. One guest. Guest must be travelling on a BA flight
• BA Arrivals lounge:
  Once access into arrivals lounge has been granted by class of travel or status, Concorde Room cardholders have access to the inner Concorde Breakfast Room with a guest. The Concorde Room card in isolation does not grant arrivals lounge access.

BA Gold members

• BA Concorde Room and Concorde Bar:
  No access by virtue of status but may be afforded access qualified by class of service
• BA owned First lounge:
  Standard oneworld rules apply
  While not guaranteed, access may also be granted when travelling on a BA marketed/non-oneworld operated flight such as BA codeshares on Vueling or Aer Lingus (subject to capacity controls/local arrangements). Ticket must have 125 e-ticket number. Guest must be travelling on the same flight
• BA owned Club lounge:
  Standard oneworld rules apply
  While not guaranteed, access may also be granted when travelling on a BA marketed/non-oneworld operated flight such as BA codeshares on Vueling or Aer Lingus (subject to capacity controls/local arrangements). Ticket must have 125 e-ticket number. Guest must be travelling on the same flight
• BA Departure Spa treatments:
  Member has access when flying BA long haul. No guests
• BA First pre-flight dining:
  Member has access when flying BA First. No guests
• BA Club pre-flight dining:
  Member has access when flying BA First or Club World. No guests
• BA Arrivals lounge:
  Member has access when flying BA long haul and further access to the inner Concorde Room when flying BA First. No guests

BA Silver members

• BA Concorde Room and Concorde Bar:
  No access by virtue of status but may be afforded access qualified by class of service
• BA owned First lounge:
  No access by virtue of status but may be afforded access qualified by class of service
• BA owned Club lounge:
  Standard oneworld rules apply
• BA Departure Spa treatments:
  Member has access when flying BA First or Club World. No guests
• BA First pre-flight dining:
  Member has access when flying BA First. No guests
• BA Club pre-flight dining:
  Member has access when flying BA First or Club World. No guests
• BA Arrivals lounge:
  Member has access when flying BA Club World or First and further access to the inner Concorde Room when flying BA First. No guests

BA Bronze and Blue members

• BA Concorde Room and Concorde Bar:
  No access by virtue of status but may be afforded access qualified by class of service
• BA owned First lounge:
  No access by virtue of status but may be afforded access qualified by class of service
• BA owned Club lounge:
  No access by virtue of status but may be afforded access qualified by class of service
• BA Departure Spa treatments:
  Member has access when flying BA First or Club World. No guests
• BA First pre-flight dining:
  Member has access when flying BA First. No guests
• BA Club pre-flight dining:
  Member has access when flying BA First or Club World. No guests
• BA Arrivals lounge:
  Member has access when flying BA Club World or First and further access to the inner Concorde Room when flying BA First. No guests

Lounge access overview | Access qualified by status | Access qualified by class of travel | Lounge database