Question : Would you be willing to change your travel days if it saved you money?
Answer : In May, Wednesday is your cheapest day to fly. Being flexible with your travel days garners even more savings during booking.
Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at May 4th. As of Apr 17th, it's showing the cheapest ticket sales at $631. That is 43% below the average price for this route, so you can spend that extra cash on an adventure rather than the flight.
Question : What price range should you expect when booking from Tampa (TPA) to Oslo (OSL)?
Answer : Flight prices change much more than most routes from the United States for TPA to OSL. They range anywhere from $631 to $3,131. Prices tend to be lower the further out you book.
Question : How long do most people visit Oslo?
Answer : Of course you're not most people, but if you were, you'd stay roughly 15 days.