www.hipmunk.com which also has an Android app.
Tried it. Too slow. Takes 10+ seconds.
Kayak's hacker fares tend to be some of the most economical.
There are a few other websites that exploit reduced rates by finding you a flight where your ticket is from A-B-C with B as your actual destination. It works because A-B is $300, but A-C with a stop in B is $250.. so you get A-C for cheaper and never re-board to go B-C. Airlines hate this because it throws their logistics to shit, and generally sue and/or stop any entrepreneurial website that takes a stab at this - but you can still do it yourself with a little bit of research.
Kayak's hacker fares tend to be some of the most economical.
There are a few other websites that exploit reduced rates by finding you a flight where your ticket is from A-B-C with B as your actual destination. It works because A-B is $300, but A-C with a stop in B is $250.. so you get A-C for cheaper and never re-board to go B-C. Airlines hate this because it throws their logistics to shit, and generally sue and/or stop any entrepreneurial website that takes a stab at this - but you can still do it yourself with a little bit of research.
Wow, I'm surprised that the airlines don't collude with TSA to get this kinda thing shut down due to some 'security' loophole.
Sounds like a good deal depending on your local airport.