I've had good luck in saving tons of money in the past when using an partner airline to book a flight as a codeshare, rather than the actual flight number. eg,

I've had good luck in saving tons of money in the past when using an partner airline to book a flight as a codeshare, rather than the actual flight number. eg, Find a flight you like on AA? Try and book it on QF or BA and the price might be substantially different, even though you end up sitting on exactly the same plane.