请问一下关于航空公司的来信

RENSHENGXIAOSA

AIR CANADA

! c* W! p! Z, Q) vEffective April 10, 2013, check-in and baggage acceptance for flights within Canada will close 45 minutes prior to departure – with the exception of flights leaving from Toronto’s city airport (YTZ), where check-in and bag drop-off will remain available until 20 minutes before departure.
3 Z' K# y. o. {0 Z
We invite you to check in online or with your mobile device at any time within 24 hours of flight departure, and to familiarize yourself with our check-in and boarding gate deadlines to allow for a smooth travel experience.
这封信是什么意思，我英语不好，所以有英语好的大侠帮看一下。

sonicho

4月10号的飞机在起飞前45分钟停止CHECK IN和行李托运，多伦多城市机场例外是20分钟前停止，后面没啥，告诉你可以用上网或移动设备CHECK IN. 最好能知道登机口在哪儿好让你方便登机来自: Android客户端

RENSHENGXIAOSA

谢谢，我妈是9月份的机票，跟这没什么关系，就是提前去机场就可以了。

littlefish2011

是4月10日以后的航班，都有用的

RENSHENGXIAOSA

哦，就是让提前到机场办理手续了。谢谢你