Aa : Yvr-sjo $789 US r/t
 

- books into I

- 7k miles flown, could only find routings via DFW

- comes up cheapest (by $10) on non-US AA sites

http://www.momondo.com/flightsearch/...false&NA=false

Nice - Google Flights shows dates in May & August, though most I checked have an overnight in DFW.

It looks like if you credit into AS, you'd get about 10,000 miles with the 50% class of service bonus.

I also found one routing that went YVR - PHX - MIA - SJO outbound, and SJO - DFW - PHX - LAX - YVR on the return, for $816. A slog both ways, but it looks like that'd net you 16,828 miles before any bonuses. Add the class of service bonus, and you're at ~25K miles credited to AS. Add any kind of an elite bonus, and you're at over 30K.

AKA, renew your AS MVP status for $816 and a weekend of sitting in business class on AA.

When converted to CDN dollars, this is a standard price for this route and many others into Central America.
Here is a route with a few extra stops.

I've noticed the airlines are adding some long inconvenient connections with these fares.

Did you accidentally double the base miles? I only get a total of 8,413 miles for YVR-PHX-MIA-SJO-DFW-PHX-LAX-YVR

Nope! - you get about half that. Sorry your math is wrong.
YVR-PHX-MIA-SJO-DFW-PHX-LAX-YVR = 8,413
Class or service bonus would be ------> 4.206
----------------------------------------------12,619 EARNED

This also works reasonably well as an AAVacations deal for those looking to credit direct to AA. Price goes up a bit (using the same dates in the OP I found $1000-1100), but that includes a hotel (for two weeks!) and since it's a special fare it should earn about 14k EQM and 1400 EQD. Not the most incredible AAV deal I've seen, but anytime EQD/$>1 is a win in my book. I only poked at the dates a very little bit; cheapest I found was around $900 and that was for like 5 days. You can go as low as 3 with AAV.