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  1. Flights
  2. United States
  3. St Louis, MO
  4. Boston, MA - St Louis, MO

Cheap Flights from Boston, MA (BOS) to St Louis, MO (STL)

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Discover the cheapest flights from Boston, MA to St Louis, MO
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Tue, Apr 28 - Tue, May 5
American Airlines
American Airlines1 stop
BOS - STL
American Airlines
American Airlines1 stop
STL - BOS
191$
183$
Prime price per passenger
Fri, May 8 - Sun, May 17
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
210$
199$
Prime price per passenger
Thu, Apr 9 - Tue, Apr 14
American Airlines
American Airlines1 stop
BOS - STL
American Airlines
American Airlines1 stop
STL - BOS
208$
205$
Prime price per passenger
Wed, Mar 25 - Wed, Apr 1
American Airlines
American Airlines1 stop
BOS - STL
American Airlines
American Airlines1 stop
STL - BOS
302$
287$
Prime price per passenger
Sun, Apr 19 - Wed, Apr 22
American Airlines
American Airlines1 stop
BOS - STL
American Airlines
American Airlines1 stop
STL - BOS
317$
Prime price per passenger
Thu, May 21 - Thu, May 28
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
American Airlines
American AirlinesDirect
STL - BOS
408$
385$
Prime price per passenger
Wed, Apr 8
American Airlines
American Airlines1 stop
BOS - STL
69$
65$
Prime price per passenger
Wed, Apr 29
American Airlines
American Airlines1 stop
BOS - STL
115$
107$
Prime price per passenger
Thu, May 14
American Airlines
American Airlines1 stop
BOS - STL
112$
108$
Prime price per passenger
Wed, Apr 15
American Airlines
American Airlines1 stop
BOS - STL
127$
Prime price per passenger
Tue, Mar 31
American Airlines
American Airlines1 stop
BOS - STL
151$
137$
Prime price per passenger
Tue, May 19
American Airlines
American Airlines1 stop
BOS - STL
145$
144$
Prime price per passenger
The prices shown on this page were available within the last 20 days for the specified periods and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Boston, MA to St Louis, MO

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of April. Take advantage of this period to save on your flight tickets and make the most of your trip. Please note that prices may change after your search.
Filter by
week: Apr 6 - Apr 12
Flights from just $178
$231
$222
$207
$189
$178
$217
$188
$187
$181
$179
$199
$222
MarchAprilMay
Flying Time3 h and 24 mWhen flying from Boston, MA to St Louis, MO, this can take around 3 h and 24 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$65The best price for flights from Boston, MA to St Louis, MO offered by eDreams, which have been found by our customers in the last 3 days
Origin airportLogan International AirportWhen flying from Boston, MA to St Louis, MO
Destination airportSt. Louis Lambert International AirportFor the route from Boston, MA to St Louis, MO
Peak seasonMarchMarch is the busiest time to fly from Boston, MA to St Louis, MO according to search data results from our customers
Airlines operating this routeAmerican AirlinesAirline(s) that fly from Boston, MA to St Louis, MO
One-way average Price290.19A flight from Boston, MA to St Louis, MO at eDreams will cost around 290.19, this being based on prices of the previous 6 months of data
Best time to bookMarchMarch is one of the most frequent times to fly to St Louis, MO from Boston, MA according to real data from our customers
Distance: 1036 miles
Boston, MA airports
Logan International Airport (BOS)How far from city center: 3 miles
St Louis, MO airports
Lambert-St Louis Internatl (STL)How far from city center: 12 miles

Are you planning to travel to St Louis, MO for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from Boston, MA. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to St Louis, MO and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from Boston, MA to St Louis, MO

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to United States. At eDreams have you covered!
On average, how much is the price of a flight from Boston, MA to St Louis, MO?
When you fly from Boston, MA to St Louis, MO the average price is 290.19. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.
For flights from Boston, MA to St Louis, MO, how can I find the cheapest price?
The cheapest price for a flight from Boston, MA to St Louis, MO is $65. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
When booking, when is the best time to get the best prices for flights from Boston, MA to St Louis, MO?
The most popular months to book a trip from Boston, MA to St Louis, MO are July, January and October, based on the searches of our customers.
When is the best time to travel from Boston, MA to St Louis, MO?
The best time of the year to visit St Louis, MO depends on lots of personal preferences, especially the price. Regarding popularity, July is the best month to fly to St Louis, MO from Boston, MA in terms of searches from our customers, followed by September and August. If you prefer to avoid the busy season and get away from the crowds January, March and October are the months with fewer searches for Boston, MA - St Louis, MO.
How long does the flight from Boston, MA to St Louis, MO take?
Flight length from Boston, MA to St Louis, MO is around 3 h and 24 m on average, at an average distance of 1,035.55 mi, for flights for the route (which may have 1 or more stops in other cities in between).

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