Cheap flights from St. Louis to Basque Block from CA $112

View CA $112 flight on Sat, Aug. 23, 2025Opens in a new window

Popular airlines from St. Louis to Basque Block

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  • Delta

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Cheap flights from St. Louis (STL) to Basque Block (BOI)

Prices were available within the past 7 days and start at CA $112 for one-way flights and CA $804 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Jul. 18 - Tue, Jul. 22
STL
St. Louis
BOI
Boise
CA $804 Roundtrip, found 2 days ago
CA $804
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jul. 18 from St. Louis to Boise, returning Tue, Jul. 22, priced at CA $804 found 2 days ago
American Airlines
Fri, Jul. 18 - Tue, Jul. 22
STL
St. Louis
BOI
Boise
CA $811 Roundtrip, found 2 days ago
CA $811
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jul. 18 from St. Louis to Boise, returning Tue, Jul. 22, priced at CA $811 found 2 days ago
Alaska Airlines
Fri, Jul. 18 - Tue, Jul. 22
STL
St. Louis
BOI
Boise
CA $835 Roundtrip, found 2 days ago
CA $835
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jul. 18 from St. Louis to Boise, returning Tue, Jul. 22, priced at CA $835 found 2 days ago
American Airlines
Fri, Jul. 18 - Tue, Jul. 22
STL
St. Louis
BOI
Boise
CA $842 Roundtrip, found 2 days ago
CA $842
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jul. 18 from St. Louis to Boise, returning Tue, Jul. 22, priced at CA $842 found 2 days ago
Alaska Airlines
Mon, Jul. 14 - Sat, Jul. 19
STL
St. Louis
BOI
Boise
CA $846 Roundtrip, found 3 days ago
CA $846
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jul. 14 from St. Louis to Boise, returning Sat, Jul. 19, priced at CA $846 found 3 days ago
Delta
Fri, Jul. 18 - Tue, Jul. 22
STL
St. Louis
BOI
Boise
CA $859 Roundtrip, found 2 days ago
CA $859
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Jul. 18 from St. Louis to Boise, returning Tue, Jul. 22, priced at CA $859 found 2 days ago

Find the cheapest month to fly from St. Louis (STL) to Boise (BOI)

November is typically the cheapest month to fly

From CA $246 - CA $949 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.