$203 Cheap United flights St. Louis (STL) to Boston (BOS)

$203 Cheap United flights St. Louis (STL) to Boston (BOS)

Prices were available within the past 7 days and start at $203 for one-way flights and $325 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, May 12 - Tue, May 19

STL

St. Louis

BOS

Boston

$325 Roundtrip, found 21 hours ago

$325

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 12 from St. Louis to Boston, returning Tue, May 19, priced at $325 found 21 hours ago

Tue, May 12 - Tue, May 19

STL

St. Louis

BOS

Boston

$359 Roundtrip, found 21 hours ago

$359

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 12 from St. Louis to Boston, returning Tue, May 19, priced at $359 found 21 hours ago

Tue, May 12 - Tue, May 19

STL

St. Louis

BOS

Boston

$405 Roundtrip, found 21 hours ago

$405

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 12 from St. Louis to Boston, returning Tue, May 19, priced at $405 found 21 hours ago

Tue, May 12 - Tue, May 19

STL

St. Louis

BOS

Boston

$421 Roundtrip, found 21 hours ago

$421

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 12 from St. Louis to Boston, returning Tue, May 19, priced at $421 found 21 hours ago

Tue, May 12 - Tue, May 19

STL

St. Louis

BOS

Boston

$429 Roundtrip, found 21 hours ago

$429

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 12 from St. Louis to Boston, returning Tue, May 19, priced at $429 found 21 hours ago

Tue, May 12 - Tue, May 19

STL

St. Louis

BOS

Boston

$435 Roundtrip, found 21 hours ago

$435

Roundtrip

found 21 hours ago

Select United flight, departing Tue, May 12 from St. Louis to Boston, returning Tue, May 19, priced at $435 found 21 hours ago