Take off on cheap flights from St Louis to Boston, your adventure starts now!

Find cheap airline tickets from St Louis to Boston by date

  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • price
  • month of departure
  • month of return
$257
outward: Sep 18, 2018
4:44p STL » 9:21p BOS
United Airlines 1 stop (4h37m)
inbound: Sep 23, 2018
1:39a BOS » 6:07a STL
United Airlines 1 stop (4h28m)
$257
outward: Sep 18, 2018
4:44p STL » 9:21p BOS
United Airlines 1 stop (4h37m)
inbound: Sep 23, 2018
1:39a BOS » 6:07a STL
United Airlines 1 stop (4h28m)
$257
outward: Sep 18, 2018
4:44p STL » 9:21p BOS
United Airlines 1 stop (4h37m)
inbound: Sep 23, 2018
1:39a BOS » 6:07a STL
United Airlines 1 stop (4h28m)
$285
outward: Jul 26, 2018
1:35p STL » 8:16p BOS
Unknown Airline 1 stop (6h41m)
inbound: Jul 30, 2018
1:00p BOS » 7:10p STL
Unknown Airline 1 stop (6h10m)
$317
outward: Oct 4, 2018
1:25p STL » 6:32p BOS
Unknown Airline 1 stop (5h07m)
inbound: Oct 8, 2018
12:00p BOS » 4:59p STL
Unknown Airline 1 stop (4h59m)
Return
Departure
Choose when you'd like to depart to Boston (USA):
Find the cheapest St Louis Boston flight by browsing the dates below to find alternative flight prices found in the last days. To launch a flight search for St Louis - Boston with these new dates, click on an offer. Want to depart from another city? Choose: Las Vegas - Boston New York - Boston London - Boston Miami - Boston Chicago - Boston San Francisco - Boston See more routes

Airlines operating flights from St Louis to Boston

  • any
  • July 2018
  • August 2018
  • September 2018
  • October 2018
  • November 2018
  • December 2018
  • January 2019
  • February 2019
  • March 2019
  • April 2019
  • May 2019
  • June 2019
  • all
  • Alaska Airlines
  • Delta Air Lines
  • Southwest Airlines
  • United Airlines
Southwest Airlines
outbound: Jul 26, 2018
Southwest Airlines 1 stop
return: Jul 30, 2018
Southwest Airlines 1 stop
United Airlines
outbound: Sep 18, 2018
United Airlines 1 stop
return: Sep 22, 2018
United Airlines 1 stop
Delta Air Lines
outbound: Sep 18, 2018
Delta Air Lines 1 stop
return: Sep 22, 2018
Delta Air Lines 1 stop
Alaska Airlines
outbound: Sep 18, 2018
Alaska Airlines 1 stop
return: Sep 22, 2018
Alaska Airlines 1 stop

Travel tips for flights St Louis - Boston

  • Arrival city:
  • Boston, USA
  • Airport(s):
  • Logan International Airport (BOS)
  • Manchester–Boston Regional Airport (MHT)
  • Local time:
  • Jul 21, 2018 7:40 AM, GMT-4
  • Weather:
  • min. 63ºF, max. 73ºF
  • Departure city:
  • St Louis, USA
  • Airport(s):
  • St. Louis Downtown Airport (CPS)
  • Lambert–St. Louis International Airport (STL)
  • MidAmerica St. Louis Airport (BLV)
  • Spirit of St. Louis Airport (SUS)
  • Local time:
  • Jul 21, 2018 6:40 AM, GMT-5
  • Weather:
  • min. 77ºF, max. 80ºF