Japan money travel

Exchange Rate at the Airport.

I couldn’t believe my eyes when I saw the exchange rate for the dollar/yen at SFO being 88 yen to $1 USD. The night before, I checked and the rate was at 98 yen on two websites; I knew that the rate could not have dropped so drastically in less than twelve hours, so I called my sister and asked her to check the rates.

According to Yahoo! Financial and, the rates were still around 98-99 yen for a dollar. Sigh of relief; but this made me pretty much decide that I probably won’t ever trade my currency at an airport unless absolutely necessary–why is it that airports get horrible rates? It seems rather fishy to me, but then again, I don’t really know much about how the exchange rates are determined from location to location (at a bank, as opposed to at an airport, etc.).

If anybody knows the answer, please let me know.