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Cheap Flights from Boston to St. Louis $300.2

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Cheapest Flights from Boston to St. Louis (BOS to STL)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Boston to St. Louis (BOS to STL)

Question : Looking for the quickest flight from BOS to STL?
Answer : Southwest Airlines currently has the shortest travel time with 55 minutes. For example, you would arrive in Saint Louis at 3:05 PM CST if you left Boston at 1:10 PM. Remember, there is a one-hour time difference.

Question : How many days should you spend in Saint Louis if you're flying in from Boston?
Answer : Of course you're not most people, but if you were, you'd stay roughly seven days.

Question : Who struggles with getting their passengers to Lambert-St. Louis International Airport (STL) on time?
Answer : If you decide to book your flight with United Airlines, keep an eye on your departure time. Over the past month, United Airlines flights from Logan International Airport (BOS) to Lambert-St. Louis International Airport (STL) are delayed 100% of the time.

Question : Do some days of the week have more flight times than others?
Answer : The day with the most departure times for this route is Wednesday with 42 options. The day with the least number of options is Sunday with 25 different times.

Question : How many departure times from Logan International Airport (BOS) to Lambert-St. Louis International Airport (STL) are there on a daily basis?
Answer : On average, BOS to STL sees seven different flight times. Compared to the average route with 31 flight times, you won't have as many choices as other routes.

Question : What is the cheapest day to fly in the next four weeks?
Answer : December 20th offers bookings (as of December 5th) that are 30% below the average price for this route. Saving on flight fares means you'll have more cash in hand for the trip.

Question : Do prices fluctuate more for this route than others?
Answer : Prices for BOS to STL do fluctuate a lot more than most. However, the sooner you book, the better price you tend to get.