London at rock bottom prices There's a whole big world out there, and it's yours while you're young. If you're under 26, you're a Qantas Pacesetter You can jet to London for only $447. And you have a choice of ways to go—fly via Bangkok and Athens or via Singapore a Vienna. See some of the East, some of Europe, then onto where it's all at—London. Come on, get into gear and put your Levi's on a Qantas seat. Get into any Qantas travel agent, now—they have all the details. You'll find them where y…