$101 Cheap Spirit Airlines flights Boston (BOS) to St. Louis (STL)

$101 Cheap Spirit Airlines flights Boston (BOS) to St. Louis (STL)

Prices were available within the past 7 days and start at $101 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 3 - Sun, Jul 6

BOS

Boston

STL

St. Louis

$238 Roundtrip, found 1 day ago

$238

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jul 3 from Boston to St. Louis, returning Sun, Jul 6, priced at $238 found 1 day ago

Sat, Jun 28 - Fri, Jul 4

BOS

Boston

STL

St. Louis

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sat, Jun 28 from Boston to St. Louis, returning Fri, Jul 4, priced at $268 found 1 day ago

Thu, Jun 26 - Fri, Jul 4

BOS

Boston

STL

St. Louis

$278 Roundtrip, found 1 day ago

$278

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jun 26 from Boston to St. Louis, returning Fri, Jul 4, priced at $278 found 1 day ago

Sat, Jun 28 - Sun, Jul 6

BOS

Boston

STL

St. Louis

$280 Roundtrip, found 1 day ago

$280

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sat, Jun 28 from Boston to St. Louis, returning Sun, Jul 6, priced at $280 found 1 day ago

Thu, Jul 3 - Fri, Jul 4

BOS

Boston

STL

St. Louis

$296 Roundtrip, found 1 day ago

$296

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jul 3 from Boston to St. Louis, returning Fri, Jul 4, priced at $296 found 1 day ago

Sat, Jun 28 - Thu, Jul 3

BOS

Boston

STL

St. Louis

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sat, Jun 28 from Boston to St. Louis, returning Thu, Jul 3, priced at $297 found 1 day ago

Sun, Jun 29 - Fri, Jul 4

BOS

Boston

STL

St. Louis

$303 Roundtrip, found 1 day ago

$303

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Jun 29 from Boston to St. Louis, returning Fri, Jul 4, priced at $303 found 1 day ago

Thu, Jun 26 - Thu, Jul 3

BOS

Boston

STL

St. Louis

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jun 26 from Boston to St. Louis, returning Thu, Jul 3, priced at $307 found 1 day ago

Sun, Jun 29 - Sun, Jul 6

BOS

Boston

STL

St. Louis

$315 Roundtrip, found 1 day ago

$315

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Jun 29 from Boston to St. Louis, returning Sun, Jul 6, priced at $315 found 1 day ago

Sun, Jun 29 - Thu, Jul 3

BOS

Boston

STL

St. Louis

$332 Roundtrip, found 1 day ago

$332

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Sun, Jun 29 from Boston to St. Louis, returning Thu, Jul 3, priced at $332 found 1 day ago