I was wondering if it was possible to get the price for a specific flight. It doesn't seem possible, thought it seems like it should be, to see how much a ticket for, as an example, flight UA7330 on June 12? (Kayak says $124)

I realize that I can look for flights by date, time and airline, but was just wondering if there was a flight search engine that supported searching by flight number?

Thanks,

Job