|Quoting Neverest (Thread starter):|
Do the airlines not see the chance that someone would buy a return ticket and just let the return portion lapse.
If you really only want to buy a one-way ticket, but in a premium cabin, a little-known trick is booking Business Class outbound, and Economy returning, to take advantage of discounted Business Class fares that must be booked as a part of round-trip journeys.
Example: QF LHR
return in Business is £3,830, that books into D-class.
If you buy a one-way ticket in Business, the QF
fare books into the more expensive J-class for £4,362.
But booking D-class outbound in Business and V-class returning in Economy yields a total fare of £2,342 round-trip. You've just saved £2,020, and simply toss the return ticket in Economy. Depending upon the route and season, booking that way can even be cheaper than standard one-way fares in Economy.
(I used May 9 outbound with May 16 returning for the fare info, if you want to replicate my example.)