Originally Posted by ironmanjt

Any domestic trip (regardless of where) is economy. US/Canada treated as one country.

All international trips under 9 hours: "no first class" On a three class plane this means business. On a two class this means business if it's business/coach, or coach if it's first/coach.

International trips over 9 hours: "no economy" Same as above, but if it's a two class first/coach plane you get first.

Train travel is permitted in "first" however.