Originally Posted by
MSPeconomist
With preclearance, it's really CBP at Vancouver which will determine whether the passengers are admitted to the USA. The good news is that there's no risk of flying and then being denied entry. So if CBP approves, the airline should allow boarding.
Very good point. I forgot that Vancouver, like many airports in Canada have pre-clearance. That does shift the issue to CBP in Vancouver. But given the current atmosphere I would still not have much hope that CBP will be forgiving. I guess the OP and family could all head to airport for their flight, arriving early and plead their case. (Edit if admitted it would seem they are still technically in the USA without the proper VISA which again to me is problematic - which could lead to a chance of being detained under right circumstances)
Last edited by FlyingUnderTheRadar; Jan 2, 2019 at 8:06 am