FlyerTalk Forums - View Single Post - US Preclearance at Ottawa Airport (YOW)
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Old Jun 24, 2022 | 12:39 pm
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guv1976
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Welcome to FlyerTalk!

U.S. pre-clearance is not an "option"; it is required if you will be boarding a U.S.-bound flight at YOW. Your departure gate will be located in a place such that only those passengers who have gone through pre-clearance will be able to access it.

More information here:

https://yow.ca/en/travel-planning/travelling-from-yow
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