Hello

Im currently in canada and going to fly to america to activate my IEC visa on way back in. Im looking at a return flight with a layover in calgary, maybe a stupid question but with it being a layover will i be able to go through customs to activate my IEC?

Where in Canada are you? Normally TWPs are issued at the 1st point of entry into Canada from another country. What is your routing?

Hello

Im in fort mcmurray, looking to fly from here to seattle, with stop overs each way in calgary.hoping to activate my IEC

You would be clearing Customs in Calgary anyway so you would activate it in Calgary. Allow times between connecting flights to have this done.

Thats perfect that i can activate it on way back from seattle. Do i need any kind of visa for going to america for a very short trip?thanks for your help.

Depending on your citizenship you will need an ESTA
https://esta.cbp.dhs.gov/esta/

Thanks for your help