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

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

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Discover the cheapest flights from St Louis, MO to Boston, MA
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Sat, Jan 17 - Tue, Jan 20
American Airlines
American Airlines1 stop
STL - BOS
American Airlines
American Airlines1 stop
BOS - STL
203$
195$
Prime price per passenger
Thu, Jan 22 - Mon, Jan 26
American Airlines
American Airlines1 stop
STL - BOS
American Airlines
American Airlines1 stop
BOS - STL
227$
Prime price per passenger
Thu, Feb 19 - Tue, Feb 24
American Airlines
American Airlines1 stop
STL - BOS
American Airlines
American Airlines1 stop
BOS - STL
270$
254$
Prime price per passenger
Thu, Feb 5 - Sat, Feb 7
American Airlines
American Airlines1 stop
STL - BOS
American Airlines
American Airlines1 stop
BOS - STL
318$
305$
Prime price per passenger
Wed, Dec 24 - Sun, Dec 28
American Airlines
American Airlines1 stop
STL - BOS
American Airlines
American AirlinesDirect
BOS - STL
335$
322$
Prime price per passenger
Wed, Dec 31 - Tue, Jan 6
American Airlines
American AirlinesDirect
STL - BOS
American Airlines
American Airlines1 stop
BOS - STL
329$
328$
Prime price per passenger
Wed, Dec 24
American Airlines
American Airlines1 stop
STL - BOS
107$
Prime price per passenger
Sat, Jan 17
American Airlines
American Airlines1 stop
STL - BOS
107$
Prime price per passenger
Tue, Jan 20
American Airlines
American Airlines1 stop
STL - BOS
107$
Prime price per passenger
Sun, Feb 15
American Airlines
American Airlines1 stop
STL - BOS
107$
Prime price per passenger
Thu, Jan 8
American Airlines
American Airlines1 stop
STL - BOS
164$
158$
Prime price per passenger
Tue, Feb 3
American Airlines
American Airlines1 stop
STL - BOS
168$
167$
Prime price per passenger
Prices shown below were available within the past 3 days for the period specified and should not be considered the final price offered. Please note that availability and prices are subject to change.

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

Flexible with dates? We find the best price for the week of the day you select *Prices may vary after you search.
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week: Dec 8 - Dec 14
Flights from just $307
$307
$388
$374
$386
$351
$309
$325
$326
$337
$363
$321
$375
DecemberJanuaryFebruary
Flying Time3 h and 39 mWhen flying from St Louis, MO to Boston, MA, this can take around 3 h and 39 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$107The best price for flights from St Louis, MO to Boston, MA offered by eDreams, which have been found by our customers in the last 3 days
Departure AirportLambert-St Louis InternatlLambert-St Louis Internatl is where you'll take off when flying from St Louis, MO to Boston, MA
Arrival AirportLogan International AirportYou'll land at Logan International Airport when flying from St Louis, MO to Boston, MA
Peak seasonJuneJune is the busiest time to fly from St Louis, MO to Boston, MA according to search data results from our customers
Airlines operating this routeAmerican AirlinesAirline(s) that fly from St Louis, MO to Boston, MA
Best time to bookMayMay is one of the most frequent times to fly to Boston, MA from St Louis, MO according to real data from our customers
Distance: 1036 miles
St Louis, MO airports
Lambert-St Louis Internatl (STL)How far from city center: 12 miles
Boston, MA airports
Logan International Airport (BOS)How far from city center: 3 miles

Are you planning to travel to Boston, MA for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from St Louis, MO. 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 Boston, MA 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 St Louis, MO to Boston, MA

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!
For flights from St Louis, MO to Boston, MA, how can I find the cheapest price?
The cheapest price for a flight from St Louis, MO to Boston, MA is $107. 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 St Louis, MO to Boston, MA?
The most popular months to book a trip from St Louis, MO to Boston, MA are May, April and October, based on the searches of our customers.
When is the best time to travel from St Louis, MO to Boston, MA?
The best time of the year to visit Boston, MA depends on lots of personal preferences, especially the price. Regarding popularity, June is the best month to fly to Boston, MA from St Louis, MO in terms of searches from our customers, followed by October and May. If you prefer to avoid the busy season and get away from the crowds January, March and July are the months with fewer searches for St Louis, MO - Boston, MA.
How long does the flight from St Louis, MO to Boston, MA take?
Flight length from St Louis, MO to Boston, MA is around 03:39 hours on average, at an average distance of 1,807 km, for flights for the route (which may have 1 or more stops in other cities in between).
How is the weather in Boston, MA compared to St Louis, MO?
While in St Louis, MO the temperatures can reach an average of 34.91 ºC in summer, with precipitation levels up to 12 mm ,Boston, MA's temperatures can go up to 32.68 ºC during the hot season, with 12 mm average of rain rate . In winter, however, weather indicators show around -13.69 ºC in Boston, MA, compared to the -13.87 ºC average degrees reported in St Louis, MO. During the winter period, St Louis, MO can register 6 mm precipitation, while Boston, MA have an average of 6 mm rain level.

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