You need to do some more reading in the forum to understand more of the nuances of the fares. You can also read the rules at oneworld.com or expertflyer.com.
You can look up fares at expertflyer.com.
For a start here are some coach and business fares ex-us:
coach:
lone3 - $3599
lone4 - 4999
lone5 - 5699
lone6 - 6899
business:
done3 - 9699
done4 - 10299
done5 - 11799
done6 - 13599