Search British Airways Executive Club reward seat availability by route and date, across BA's own flights and its oneworld partners.
British Airways prices reward flights by the distance of each individual segment rather than by the whole journey, which produces a specific and exploitable pattern: short flights are cheap, and a connecting itinerary costs the sum of its parts rather than a single long-haul price. That makes BA excellent value for short direct hops and often poor value for a multi-stop trip that a region-based program would price as one award. Work out your segment distances with the Great Circle Mapper before assuming a routing is sensible.
BA reward flights, especially long-haul premium cabins departing the UK, carry carrier-imposed charges and Air Passenger Duty that can run to several hundred pounds or dollars. This is the single reason people who love Avios in principle end up booking elsewhere. Departing from continental Europe rather than London can materially reduce the bill on the same routing, which is worth modelling before you write the redemption off entirely.
BA typically releases a small number of reward seats per cabin when the schedule first opens, roughly a year ahead, with more appearing sporadically as departure approaches. Holders of certain BA co-branded cards and higher Executive Club tiers can access additional availability. If you need two seats together in a premium cabin on fixed dates, being ready on the day the schedule opens is worth far more than any amount of searching later.
If you are trying to establish how many Avios a given trip will take, our sister site keeps a route-by-route breakdown in its how many Avios for a flight tool. Avios also move between British Airways, Iberia, Aer Lingus, Finnair and Qatar Privilege Club, so a balance stranded in one program can often be combined to fund a booking in another - and the same seat is sometimes cheaper booked through a sibling program than through BA itself.