$149 Cheap United flights St. Louis (STL) to Boston (BOS)

$149 Cheap United flights St. Louis (STL) to Boston (BOS)

Prices were available within the past 7 days and start at $149 for one-way flights and $377 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 4 - Thu, Nov 13

STL

St. Louis

BOS

Boston

$377 Roundtrip, found 18 hours ago

$377

Roundtrip

found 18 hours ago

Select United flight, departing Tue, Nov 4 from St. Louis to Boston, returning Thu, Nov 13, priced at $377 found 18 hours ago

Thu, Nov 6 - Thu, Nov 13

STL

St. Louis

BOS

Boston

$432 Roundtrip, found 18 hours ago

$432

Roundtrip

found 18 hours ago

Select United flight, departing Thu, Nov 6 from St. Louis to Boston, returning Thu, Nov 13, priced at $432 found 18 hours ago

Thu, Nov 6 - Thu, Nov 13

STL

St. Louis

BOS

Boston

$436 Roundtrip, found 18 hours ago

$436

Roundtrip

found 18 hours ago

Select United flight, departing Thu, Nov 6 from St. Louis to Boston, returning Thu, Nov 13, priced at $436 found 18 hours ago

Thu, Nov 6 - Thu, Nov 13

STL

St. Louis

BOS

Boston

$439 Roundtrip, found 18 hours ago

$439

Roundtrip

found 18 hours ago

Select United flight, departing Thu, Nov 6 from St. Louis to Boston, returning Thu, Nov 13, priced at $439 found 18 hours ago

Thu, Nov 6 - Thu, Nov 13

STL

St. Louis

BOS

Boston

$454 Roundtrip, found 18 hours ago

$454

Roundtrip

found 18 hours ago

Select United flight, departing Thu, Nov 6 from St. Louis to Boston, returning Thu, Nov 13, priced at $454 found 18 hours ago

Thu, Nov 6 - Thu, Nov 13

STL

St. Louis

BOS

Boston

$494 Roundtrip, found 18 hours ago

$494

Roundtrip

found 18 hours ago

Select United flight, departing Thu, Nov 6 from St. Louis to Boston, returning Thu, Nov 13, priced at $494 found 18 hours ago