Code share check in
 

Flying AC code share to the USA .....trying to check in on line and AC won't let me. Even UAL won't let me. In this day and age...doesn't make a lot of sense. I have no checked bags and NEXUS, was hoping to breeze to the gate. Guess not..any thoughts?

Who's operating the flight?

If it's an AC codeshare operated by UA from Canada to USA, you can't use UA web check in. Looks like it's only available for US departures only, from UA's site:

When can I use EasyCheck-in Online?
For U.S. domestic departures, including Alaska; Hawaii; San Juan, Puerto Rico; St. Thomas and the U.S. Virgin Islands, EasyCheck-in Online is available 1 to 24 hours prior to flight departure. For departures from the United States to international destinations, it is available from 2 to 24 hours prior to departure.


If it's an UA codeshare operated by AC, you need to get the AC locator before you can web check in, the UA locator will not work with AC web check in.

It's an AC flight operated by UA. I was just trying the UAL site for fun to see if they would let me check in, as the AC website refused to.

May work the same internationally with award flights.. we had a AE award flight flying LH out of CPH. Neither our AE comfirmation code nor our LH info let us check into anything except directly at the CPH airport. The kiosks there wouldn't either.