Why LAN is the best choice for banking your miles

[Yordai Dooma]

In order to get those price plans it needs to be a direct flight. At least ottawa to dc cant get a direct flight.

How do i determine the cost when there is a stop involved?

[Mikeoracle]

each leg would be considered its own flight and you need to check the chart to see which category each falls in to find the respective KM requirement...

[me]

How do i determine the cost when there is a stop involved?

First go onto aa.com and try to get a award ticket for each leg (you dont need points or even a account to do this). then you see if its direct or not - if its not direct you need to calculate each leg...

[Dan]

It's probably not worth using LAN on a flight with a stop.

A round trip or open-jaw is required.
An example of open jaw that I booked is LGA-YUL(Montreal) and YUL-ORD(Chicago).
You could also book ORD-CLE and LGA-ORD as an open-jaw.  It seems fairly flexible.

[Yordai Dooma]

Are there any other partner airline with LAN other than AA to use when flying domestic short haul?

[Dan]

Are there any other partner airline with LAN other than AA to use when flying domestic short haul?

No
http://www.oneworld.com/