Originally Posted by
Moriens
$886 is exactly the fare, before taxes, for flying in first class in one direction (fare basis RA7N) and economy in the other (fare basis QR0N).
It's most likely that the website found two flights (BJX-IAH and IAH-SEA) which briefly had no first-class availability, and quoted a fare based on first class down and economy back (or vice versa).
Brillant! I was using advance search and I probably did not indicate FC for the return....thank you so much for solving the riddle.
David