This is just anecdotal AFAIK. I don't think I've seen any hard numbers. Supposedly, with the weak dollar, the US is becoming a prime tourist destination. Whether or not it will help our balance of trade is another matter, but if the phenomenon is real, how would you cash in on it? Last I heard, US airlines are a double bagger - and not in a good way. Are other international carriers a better bet? The only thing I could think of that would make any sense would be big European or Asian charter agencies. They should be in a position to squeeze every penny out of their US providers/suppliers without having to give customers much of a break in the price. It seems like the very definition of pricing power. But even in the US, I couldn't think of anyone. Perillo tours came to mind since I'm in the NY metro area and you used to see their commercials late at night, but I don't have any idea how big they are. Expedia, Orbitz, etc would be good play if the traffic were going in the opposite direction, but how much of their revenue, if any, comes from outside the US. I don't know if there is enough evidence to act on an idea like this, but I thought it might be interesting to discuss.
You have to figure, what are the foreign tourists buying when they get here? IS there any foreign solid airlines that are overloaded with people going to the USA from foreign, developed nations? For example, a lot of Asians settle in and travel to Hawaii. Japanese, Korean, Filipino, etc. What companies in Asia or Hawaii cater mostly to these people?