One of the many things we like about Singapore Airlines is that when they have a sale on their web site, they list fares with all taxes and fuel surcharges, round-trip. We don't see why other airlines can't do this. We're tired of those "come on" $179 fares to wherever, that are actually one-way with a round-trip purchase required, and don't include the taxes and surcharges.
So here are some good fare sales on Singapore right now, with taxes and fees:
San Francisco to Seoul $799
New York to Frankfurt $696
Houston to Moscow $643
Plus, of course, you get that great Singapore Air service. Most of Singapore's best fares right now will be for travel August 16 or later.