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Cheap Flights from St Louis to Boston, MA, United States - STL to BOS Last modified: May 28, 2016 1:53 AM

Popular flights from St Louis to Boston Last modified: May 28, 2016 1:53 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Alaska Airlines
Departure Date Return Date Lowest Price
Jul 21, 2016 Jul 25, 2016 $614
American Airlines
Departure Date Return Date Lowest Price
Aug 30, 2016 Sep 4, 2016 $362
United Airlines
Departure Date Return Date Lowest Price
Aug 30, 2016 Sep 1, 2016 $351
Aug 30, 2016 Sep 4, 2016 $351
Aug 31, 2016 Sep 4, 2016 $351

How Much Does it Cost to Fly from St Louis to Boston (STL to BOS)?

We have collected flight cost data from across the web for travel from St Louis to Boston, and have found the average flight price for this trip to be $354.

When Can I Buy the Cheapest Flight from St Louis to Boston (STL to BOS)?

Airlines can adjust prices for plane tickets from St Louis to Boston based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Cheapest Day To Fly from St Louis to Boston

The chart below shows up-to-date information regarding the cheapest days to fly from St Louis to Boston.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$354 $354 $354 $354 $354 $354 $354

Lowest Fares Chart By Month from St Louis to Boston

The chart below shows the lowest fare by month when flying from St Louis to Boston.

Month Origin Destination Carrier Depart Date Return Date Stops Price
May St Louis Boston American 5/28/16 5/30/16 2 $602
June St Louis Boston United 6/14/16 6/21/16 1 $354
July St Louis Boston United 7/4/16 7/15/16 1 $354
August St Louis Boston United 8/30/16 9/1/16 2 $351
September St Louis Boston United 9/1/16 9/5/16 1 $354
October St Louis Boston United 10/14/16 10/29/16 1 $354
November St Louis Boston United 11/4/16 11/6/16 1 $354
December St Louis Boston United 12/19/16 12/27/16 1 $354
TIPSave $217 by flying into New York instead of Boston from St Louis

Round Trip vs One Way Flights from St Louis to Boston (STL to BOS)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Boston. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Boston is $288.

The average price for round trip flights from St Louis to Boston is $449.

St Louis to Boston Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to Boston?
Answer: Chicago, IL

Airlines Flying from St Louis to Boston (STL to BOS) Number of flights searched: 190Last modified: May 28, 2016 1:53 AM

Below are the different airlines that fly from St Louis to Boston with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to Boston.

St Louis to Boston
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American CLT X X X X X X X
Delta ATL X X X X X X X
United ORD X X X X X X X
Southwest - X X X X X X X
Southwest MKE X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and Boston, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to New York American, Alaska, United $235
St Louis to Manchester American, United $333
St Louis to Providence American, Alaska, United $363
St Louis to Hartford American, Alaska, United $250
St Louis to Newark American, Alaska, United $235
St Louis to Chicago American, Alaska, United $219
St Louis to Portland American, Alaska, United $358
St Louis to Atlanta American, Alaska, Frontier, United $78
St Louis to Philadelphia American, Alaska, United $331
St Louis to Washington American, Alaska, United $203
St Louis to Martha's Vineyard American, Alaska, United $468
St Louis to Baltimore American, Alaska, United $217
St Louis to Albany American, Alaska, United $350
St Louis to Dallas - Ft Worth American, Alaska, United $209
St Louis to Long Island MacArthur American, Alaska, United $447

Cheap Domestic Flights to Boston - BOS

FlightsAirlineLowest Price
Springfield to Boston American, Alaska, United $390
Moline to Boston American, United $244
Peoria to Boston American, United $244
Bloomington - Normal to Boston American $293
Evansville to Boston American, United $369
Champaign to Boston American $412
Springfield to Boston American, United $262
Springfield to Manchester American, United $499
Springfield to Providence American, United $623
Evansville to Providence American, United $631
Evansville to Manchester American, United Check Dates
Evansville to New York American, United $368
Springfield to New York American, Alaska, United $332
Springfield to Hartford American, United $370
Peoria to Hartford American, United $449
Cheap Flights from St Louis to Boston, MA, United States, from $351 Round trip from STL to BOS