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Cheap flights from St Louis to Boston (STL - BOS)

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The best prices from St Louis to Boston are usually found in November or March, booked 57 days in advance, depart on a Thursday or Tuesday and return on a Thursday

How to find the cheapest flight from
St Louis (STL) to Boston (BOS)

STL - BOS
Price
$211 - $299
BOS
Temperature
39.2 - 84.2 °F
BOS
Rainfall
2.8 - 3.9 inches
Popular in August High demand for flights, 15% potential price rise
Cheapest in November Best time to find cheap flights, 17% potential price drop
Round-trip from $211 From St Louis to Boston
One-way from $75 One-way flight from St Louis to Boston
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from St Louis to Boston?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 7% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St Louis to Boston?

Travelers have found it’s best to book a flight 26 days in advance to save up to 23% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 26 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St Louis to Boston 1-2 weeks in advance for as low as $270, or $316 for flights within the next 24 hours.

When is the cheapest time to fly from St Louis to Boston (STL - BOS)?

It’s optimal to fly from St Louis to Boston in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from St Louis to Boston in August, September 2020

The best prices found for STL to BOS flights for August, September
12 Aug - 19 Aug
$115pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
27 Jul - 5 Aug
$117pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
9 Aug - 17 Aug
$135pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Frontier
 
1 STOP
STL
Lambert-St Louis

St Louis to Boston 2020 flight deals

Cheap flights to Boston from St Louis found for this year
12 Aug - 19 Aug
$115pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
27 Jul - 5 Aug
$117pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
9 Aug - 17 Aug
$135pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Frontier
 
1 STOP
STL
Lambert-St Louis

Last minute flights from St Louis to Boston

Late deals on round-trip flights to Boston from St Louis, departing today and this week
27 Jul - 5 Aug
$117pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
27 Jul - 5 Aug
$144pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
27 Jul - 4 Aug
$162pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
BOS
Boston Logan Intl
BOS
Boston Logan Intl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis

One-way flights to Boston from St Louis

The cheapest one-way flights from St Louis to Boston
8:45 am - 6:17 pm
Major Airline
1 Stop
8h 32m
STL - BOS
Major Airline
$75
StudentUniverse
1:19 pm - 5:29 am
Multiple Airlines
1 Stop
15h 10m
STL - BOS
Multiple Airlines
$134
Kiwi.com
2:00 pm - 6:35 am
Sun Country Air
2 Stops
15h 35m
STL - BOS
Sun Country Air

Related info for your journey

Useful info, stats and facts about St Louis to Boston flights.

Flight FAQs

From St Louis to Boston

Are flight prices decreasing from St Louis to Boston due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Boston for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from St Louis to Boston for under $200 on Cheapflights?

Yes, there are multiple flights from St Louis to Boston for under $200. The cheapest flight booked recently is on Multiple Airlines for just $115, but on average you can expect to pay $152.

Are there nonstop flights from St Louis to Boston for under $100 on Cheapflights?

There are no nonstop flights from St Louis to Boston, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from St Louis to Boston for under $200?

There are currently 19+ open flights from St Louis to Boston within the next 7 days for less than $200.

What days are nonstop flights available from St Louis to Boston?

You can find nonstop flights on the following days: Friday.

How popular is this flight route?

Within the past month, 51 users have taken a look at flights from Lambert-St Louis to Boston Logan Intl.

How many flights depart from St Louis to Boston on average per day?

On average 1 flight departs from Lambert-St Louis to Boston Logan Intl per day.
Evening (6pm - Midnight) - 100% of flight departures

Does it rain more in St Louis or Boston?

St Louis will have less rainfall in 2 compared to Boston over the next 12 days.

Is St Louis weather warmer or cooler than Boston?

You can imagine temperatures to be in the 90 °F range in July. The weather in Boston is generally colder than St Louis's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from St Louis to Boston?

Airlines like Delta, Allegiant Air, and Cape Air fly from St Louis to Boston in about 5h 20m. The time it takes to get you to your destination can typically vary by up to 3h 12m. St Louis and Boston are separated by a distance of 1049 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from St Louis to Boston round-trip?

Allegiant Air, at $160, was found to be the cheapest airline from St Louis to Boston. An alternate airline flying to your destination would be Cape Air. Allegiant Air is priced at 37% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from St Louis to Boston one-way?

The cheapest airlines for a one-way flight from St Louis to Boston are Major Airline ($75), Sun Country Air ($107), and Delta ($111).

Alternative routes for St Louis to Boston

Destination information for Boston

Things to know before you go. Useful info for your trip from St Louis to Boston
Average temperature for August in Boston
82.4 °F
Avg rainfall for August in Boston
3.1 ″

Airports servicing St. Louis

Airports servicing Boston

Hourly flight availability from St Louis to Boston

Morning 6 AM to noon 53% of STL to BOS departures
Afternoon Noon to 6 PM 46% of STL to BOS departures
Early morning Midnight to 6 AM 1% of STL to BOS departures
Evening 6 PM to midnight 0% of STL to BOS departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from St Louis to Boston
Sunday
2 daily flights
Monday
2 daily flights
Tuesday
0 flights
Wednesday
2 daily flights
Thursday
2 daily flights
Friday
2 daily flights
Saturday
1 daily flight
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