Your guide to the new 'basic economy' airfares
The two most important features of the new basic economy airfares to note: on some airlines, you're not allowed to place a bag in the overhead bins (your carry-on item must be small enough to fit safely under the seat in front of you); and because you can't choose a seat in advance, you'll be assigned a seat at check-in or at the gate. But there are other restrictions and rules to note, which I've broken down by airline.