Originally Posted by guv1976

If you book on BA, there are certain discounts available if you are an AARP member, or if you have the Chase/BA credit card. Details here:

https://www.aarp.org/membership/bene...itish-airways/

https://www.britishairways.com/en-us...visa-signature

Note that, regardless of which airline you book through, if you book the PDX-LHR nonstop operated by BA, you will have certain protections under UK law on the outbound flight in the event of delays or cancellations, in addition to being protected on the return flight. If you book connecting flights operated by AA, you would only receive such protections on the return flights.