Cheap flights from St. Louis to Eastern Massachusetts

View AU$193 flight on Sun, 14 Dec. 2025Opens in a new window

Popular airlines from St. Louis to Eastern Massachusetts

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from St. Louis (STL) to Eastern Massachusetts (BOS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 14 Dec. - Wed, 7 Jan.
STL
St. Louis
BOS
Boston
AU$359 Return, found 1 day ago
AU$359
Return
found 1 day ago
Select Delta flight, departing Sun, 14 Dec. from St. Louis to Boston, returning Wed, 7 Jan., priced at AU$359 found 1 day ago
Delta
Sun, 14 Dec. - Wed, 7 Jan.
STL
St. Louis
BOS
Boston
AU$385 Return, found 1 day ago
AU$385
Return
found 1 day ago
Select Delta flight, departing Sun, 14 Dec. from St. Louis to Boston, returning Wed, 7 Jan., priced at AU$385 found 1 day ago
Delta
Sun, 14 Dec. - Wed, 7 Jan.
STL
St. Louis
BOS
Boston
AU$420 Return, found 1 day ago
AU$420
Return
found 1 day ago
Select Delta flight, departing Sun, 14 Dec. from St. Louis to Boston, returning Wed, 7 Jan., priced at AU$420 found 1 day ago
Delta
Sat, 9 Aug. - Tue, 12 Aug.
STL
St. Louis
BOS
Boston
AU$455 Return, found 5 days ago
AU$455
Return
found 5 days ago
Select Delta flight, departing Sat, 9 Aug. from St. Louis to Boston, returning Tue, 12 Aug., priced at AU$455 found 5 days ago
American Airlines
Sun, 14 Dec. - Wed, 7 Jan.
STL
St. Louis
BOS
Boston
AU$468 Return, found 1 day ago
AU$468
Return
found 1 day ago
Select American Airlines flight, departing Sun, 14 Dec. from St. Louis to Boston, returning Wed, 7 Jan., priced at AU$468 found 1 day ago
Alaska Airlines
Sun, 14 Dec. - Wed, 7 Jan.
STL
St. Louis
BOS
Boston
AU$584 Return, found 1 day ago
AU$584
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 14 Dec. from St. Louis to Boston, returning Wed, 7 Jan., priced at AU$584 found 1 day ago

Find the cheapest month to fly from St. Louis (STL) to Boston (BOS)

August is typically the cheapest month to fly

From AU$185 - AU$540 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.