Also you may want to pay for the minor cost of $205 a year (no pre-existing condition exceptions) to www.medjetassistance.com to get out of Dodge when /if it happens again. Medical evac home is priceless.

I have the same PE experience and fly J/F only on AA and have not been able to fly CO on my route for the same reason - they fly RJ's YYZ-IAH , and my hematologist has said - no RJ's , no regular coach longer than 60 minutes total. DL flies my regular route but I cannot be sure they offer J at all times, plus they are a little pricey.

Still for 3rd world countries (and they will even do evacs domestically as well over 150 miles from home) I wouldn't leave home without this air evac card. For the pennies a day it costs.