Qantas is running a promo for travel between the US and Australia: Around $970 all-in round trip (that’s $399 each way, including fuel surcharges, plus taxes) for flights from Los Angeles or San Francisco to major Australian hubs, and including a free stopover in New Zealand.

The free stopover is what really makes this a good deal.

Too bad the business class seats aren’t similarly discounted. ($15,260 for business class, for one person on the same dates. I don’t think so.)

Flights are only available at those rates for travel between May 1 and June 8, 2010. A narrow window of opportunity, but potentially worthwhile, especially with that free stopover thrown in.

Be careful when booking that you choose “red tail” flights, not Jetstar, their no-frill discount carrier. The flights are the same price, but the amenities are more generous on the mainline Qantas flights.

Maddening, though: Though you can tack on a domestic US flight to the fare for generally-reasonable rates (i.e., ~$220 additional for the roundtrip from Newark), the Qantas website makes it nearly impossible to book if you’re not leaving from a short list of cities. And that list is odd: Monterey is on the list, but Charlotte and Raleigh aren’t? Flagstaff is included, but Milwaukee isn’t? Seems like a webpage makeover is in order.

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