(iStock ) United has long had its Economy Plus option, offering "up to 5 extra inches of legroom" in coach, starting at $9 per flight for shorter hops.
Tips for getting cheap upgrades, more legroom when you fly
AUGUST 30, 2012George Hobica, FoxNews.com
JetBlue, Delta, United and other airlines will sell you a few extra inches of legroom at the front of the economy cabin or at exit rows for a reasonable upgrade fee. Read more: Fox News
