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Papilio cresphontes
The Giant Swallowtail (Papilio cresphontes) is a swallowtail butterfly common in various parts of North America and marginally into South America (Colombia and Venezuela only). In the United States and Canada it is mainly found in the south and east. With a wingspan of about 10–16 cm (3.9–6.3 in),[2] it is the largest butterfly in Canada and the United States.[3]-Wikipedia
It is the other one: Heraclides cresphontes. Some spots are different.
Unfortunately there is a wrong picture on the wiki page!
That one is Heraclides thoas and NOT Cresphontes, that's why I posted the picture from the German site as reference.
A leave a note for correction of the wiki page.