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Cheap Flights from Boston to St. Louis $284.16

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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 : When travelling to Saint Louis from Boston, how long will you be in the air?
Answer : The average flight duration between BOS and STL is 1 hour and 15 minutes.

Question : How long do most people stay in Saint Louis when they fly in from Boston?
Answer : The average time spent in Saint Louis by passengers flying from BOS is five days.

Question : Is price more important than specific travel days for you?
Answer : Wednesday is your lowest-cost day to fly in February. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.

Question : Over the coming months, which airline is getting its passengers to Lambert-St. Louis International Airport (STL) round-trip the cheapest?
Answer : Check out Delta Air Lines, as they have been booking customers at lower fares than most.

Question : Who struggles with getting their passengers to Lambert-St. Louis International Airport (STL) on time?
Answer : Flights on United Airlines to Saint Louis from Boston during the last month were late 100% of the time. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Question : What's the likelihood of you being delayed on this route?
Answer : BOS to STL currently scores 3.1 out of a possible 5 stars in promptness. This score combines both the number of delayed flights and total delayed minutes. With 3.1 stars, you should plan on being flexible with your arrival plans.