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Although you do not state it specifically it seems that your inquiry is related to flying on United, at least on the USA to NRT bit so I'm going to move this thread over there for further discussion. It is a bit out of place in the Travel Technology forum.

Also, in the future you can use the "edit" button rather than replying to yourself so much.
</mod>

Neither ORD nor IAD has free wifi, IIRC. ORD uses Boingo; I'm not sure who the provider is at IAD.