24小时能退票是2013年通过的法律。只是要求出发一周以外买的。
Twenty-Four Hour Reservation Rule
Under the 24-Hour Reservation Rule, you can either:
Have your reservation held at the quoted fare for 24 hours without payment,
or
Cancel your reservation within 24 hours and receive a full refund.
This rule only applies if your reservation is made at least seven days
before the departure date but would apply to all tickets, even those that
are non-refundable