Good advice everyone. I'm based in SEA so finding something from SEA/SLC or SFO would be choice.

The real question is how much of my day do I want to waste learning the ins and outs of searching for mileage runs. Summer also seems like a terrible time do to this sort of thing given prices.

So close to stepping over the edge - I know I'm then just 2 trips away from an around the world mileage run.