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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, May 9 - Tue, May 12
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
164$
155$
Prime price per passenger
Thu, May 21 - Sun, May 24
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
164$
155$
Prime price per passenger
Wed, Jun 3 - Thu, Jun 4
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
204$
193$
Prime price per passenger
Tue, Jun 16 - Thu, Jun 18
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
253$
241$
Prime price per passenger
Fri, Jul 10 - Sun, Jul 12
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
Frontier Airlines
Frontier Airlines1 stop
BOS - STL
254$
242$
Prime price per passenger
Thu, Jun 25 - Wed, Jul 1
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
American Airlines
American AirlinesDirect
BOS - STL
262$
Prime price per passenger
Wed, May 13
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
79$
77$
Prime price per passenger
Thu, May 21
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
79$
77$
Prime price per passenger
Thu, May 28
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
97$
95$
Prime price per passenger
Tue, Jun 9
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
99$
97$
Prime price per passenger
Wed, Jul 15
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
-16 %
120$
101$
Prime price per passenger
Sun, Jun 28
Frontier Airlines
Frontier Airlines1 stop
STL - BOS
107$
103$
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 St Louis, MO to Boston, MA

If you’re planning to fly this route soon, keep in mind that the lowest fares are usually available at the beginning of May. 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.
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week: May 4 - May 10
Flights from just $159
$199
$159
$192
$196
$193
$182
$196
$223
$263
$239
$248
$212
AprilMayJuneJuly
Flying Time2 h and 40 mWhen flying from St Louis, MO to Boston, MA, this can take around 2 h and 40 m in flying time, however this flight duration can vary due to other factors
Cheapest flight$77The 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
Origin airportSt. Louis Lambert International AirportWhen flying from St Louis, MO to Boston, MA
Destination airportLogan International AirportFor the route from St Louis, MO to Boston, MA
Peak seasonMarchMarch 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
One-way average Price$289A flight from St Louis, MO to Boston, MA at eDreams will cost around $289, this being based on prices of the previous 6 months of data
Best time to bookMarchJuly 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!
On average, how much is the price of a flight from St Louis, MO to Boston, MA?
When you fly from St Louis, MO to Boston, MA the average price is $289. However, this price depends on many other factors such as seasonality or how far in advance the route has been booked.
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 $77. 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 2 h and 40 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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