Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at Mar 13th. As of Feb 20th, it's showing the cheapest ticket sales at $325. That is 23% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : Are you paying the cheapest or highest price for your ticket to Tromso?
Answer : Ranging from $325 to $514, prices for VIE to TOS change less than the majority of routes from Austria. The further out you book a route, the more likely you are to save.
Question : How many days should you spend in Tromso?
Answer : Passengers from VIE to TOS stay about one week on average.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : The cheapest day to fly in March is Monday. Being flexible with your travel days garners even more savings during booking.