Tips and ideas on how to best spend a layover at Houston Intercontinental airport. Got a favorite quiet place to connect to wifi? A great bar or restaurant? Maybe an exhibit or a walk? Share your IAH Airport layover experiences with others, or post a question and get notified when there is a response.
Flying from RTB on United to IAH, then need to switch to Air Canada to fly to Calgary. Will 3 and a half hours be long enough to do this? Do I need to go through security/customs before getting on Air Canada?
Yes, that should be enough time. Yes, you will have to go through US Immigration, customs, and security.