Question : What price range should you expect when booking from Saint Louis (STL) to Lisbon (LIS)?
Answer : Flight prices are fluctuating a lot more for this route than the majority of routes from the United States, as they're ranging anywhere from $1,025 to $3,670. The further out you book a route, the more likely you are to save.
Question : What is the cheapest round-trip ticket you can get to Lisbon?
Answer : United Airlines is offering the best deal at $1,025. Better snatch it up quickly because prices range all the way up to $3,670 over the next three months.
Question : How long do most people visit Lisbon?
Answer : Of course you're not most people, but if you were, you'd stay roughly 11 days.
Question : Is price more important than specific travel days for you?
Answer : The cheapest day to fly in July is Wednesday. 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 Jul 11th. As of Jun 26th, it's showing the cheapest ticket sales at $1,025. That is 37% below the average price for this route, so you can spend that extra money on a fun experience in Lisbon.