Flights from Boise to Granite City

Cheapest flights from Boise

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 16 - Sat, Oct 18

BOI

Boise

STL

Lambert-St. Louis Intl.

$254 Roundtrip, just found

$254

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Oct 16 from Boise to Lambert-St. Louis Intl., returning Sat, Oct 18, priced at $254 just found

Sun, Oct 12 - Sat, Oct 18

BOI

Boise

STL

Lambert-St. Louis Intl.

$266 Roundtrip, just found

$266

Roundtrip

just found

Select Frontier Airlines flight, departing Sun, Oct 12 from Boise to Lambert-St. Louis Intl., returning Sat, Oct 18, priced at $266 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$279 Roundtrip, just found

$279

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $279 just found

Wed, Oct 15 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$279 Roundtrip, just found

$279

Roundtrip

just found

Select Delta flight, departing Wed, Oct 15 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $279 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$279 Roundtrip, just found

$279

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $279 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$279 Roundtrip, just found

$279

Roundtrip

just found

Select American Airlines flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $279 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$284 Roundtrip, just found

$284

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $284 just found

Sun, Aug 10 - Sun, Aug 17

BOI

Boise

STL

Lambert-St. Louis Intl.

$287 Roundtrip, found 1 day ago

$287

Roundtrip

found 1 day ago

Select American Airlines flight, departing Sun, Aug 10 from Boise to Lambert-St. Louis Intl., returning Sun, Aug 17, priced at $287 found 1 day ago

Tue, Oct 14 - Wed, Oct 22

BOI

Boise

STL

Lambert-St. Louis Intl.

$296 Roundtrip, just found

$296

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Wed, Oct 22, priced at $296 just found

Tue, Oct 14 - Wed, Oct 22

BOI

Boise

STL

Lambert-St. Louis Intl.

$300 Roundtrip, just found

$300

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Wed, Oct 22, priced at $300 just found

Wed, Oct 15 - Fri, Oct 24

BOI

Boise

STL

Lambert-St. Louis Intl.

$302 Roundtrip, just found

$302

Roundtrip

just found

Select Delta flight, departing Wed, Oct 15 from Boise to Lambert-St. Louis Intl., returning Fri, Oct 24, priced at $302 just found

Sat, Oct 11 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$302 Roundtrip, just found

$302

Roundtrip

just found

Select Alaska Airlines flight, departing Sat, Oct 11 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $302 just found

Fri, Oct 17 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$308 Roundtrip, just found

$308

Roundtrip

just found

Select Delta flight, departing Fri, Oct 17 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $308 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$308 Roundtrip, just found

$308

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $308 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$319 Roundtrip, just found

$319

Roundtrip

just found

Select American Airlines flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $319 just found

Tue, Oct 14 - Wed, Oct 22

BOI

Boise

STL

Lambert-St. Louis Intl.

$320 Roundtrip, just found

$320

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Wed, Oct 22, priced at $320 just found

Tue, Oct 14 - Tue, Oct 21

BOI

Boise

STL

Lambert-St. Louis Intl.

$321 Roundtrip, just found

$321

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Tue, Oct 21, priced at $321 just found

Tue, Oct 14 - Wed, Oct 22

BOI

Boise

STL

Lambert-St. Louis Intl.

$324 Roundtrip, just found

$324

Roundtrip

just found

Select United flight, departing Tue, Oct 14 from Boise to Lambert-St. Louis Intl., returning Wed, Oct 22, priced at $324 just found

Sat, Oct 11 - Fri, Oct 24

BOI

Boise

STL

Lambert-St. Louis Intl.

$326 Roundtrip, just found

$326

Roundtrip

just found

Select Delta flight, departing Sat, Oct 11 from Boise to Lambert-St. Louis Intl., returning Fri, Oct 24, priced at $326 just found

Sat, Oct 11 - Mon, Oct 20

BOI

Boise

STL

Lambert-St. Louis Intl.

$326 Roundtrip, just found

$326

Roundtrip

just found

Select Hawaiian Airlines flight, departing Sat, Oct 11 from Boise to Lambert-St. Louis Intl., returning Mon, Oct 20, priced at $326 just found