Flights from Boise to Washington

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.

Tue, Aug 26 - Mon, Sep 1

BOI

Boise

STL

Lambert-St. Louis Intl.

$165 Roundtrip, found 15 hours ago

$165

Roundtrip

found 15 hours ago

Select Delta flight, departing Tue, Aug 26 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $165 found 15 hours ago

Sun, Aug 31 - Mon, Sep 1

BOI

Boise

STL

Lambert-St. Louis Intl.

$187 Roundtrip, found 15 hours ago

$187

Roundtrip

found 15 hours ago

Select Delta flight, departing Sun, Aug 31 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $187 found 15 hours ago

Thu, Aug 28 - Mon, Sep 1

BOI

Boise

STL

Lambert-St. Louis Intl.

$207 Roundtrip, found 15 hours ago

$207

Roundtrip

found 15 hours ago

Select Delta flight, departing Thu, Aug 28 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $207 found 15 hours ago

Fri, Aug 29 - Mon, Sep 1

BOI

Boise

STL

Lambert-St. Louis Intl.

$211 Roundtrip, found 15 hours ago

$211

Roundtrip

found 15 hours ago

Select Delta flight, departing Fri, Aug 29 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $211 found 15 hours ago

Thu, Aug 28 - Sun, Aug 31

BOI

Boise

STL

Lambert-St. Louis Intl.

$229 Roundtrip, found 15 hours ago

$229

Roundtrip

found 15 hours ago

Select Delta flight, departing Thu, Aug 28 from Boise to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $229 found 15 hours ago

Fri, Aug 29 - Sun, Aug 31

BOI

Boise

STL

Lambert-St. Louis Intl.

$233 Roundtrip, found 15 hours ago

$233

Roundtrip

found 15 hours ago

Select Delta flight, departing Fri, Aug 29 from Boise to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $233 found 15 hours ago

Thu, Aug 28 - Fri, Sep 5

BOI

Boise

STL

Lambert-St. Louis Intl.

$253 Roundtrip, found 15 hours ago

$253

Roundtrip

found 15 hours ago

Select Delta flight, departing Thu, Aug 28 from Boise to Lambert-St. Louis Intl., returning Fri, Sep 5, priced at $253 found 15 hours ago

Fri, Aug 29 - Fri, Sep 5

BOI

Boise

STL

Lambert-St. Louis Intl.

$257 Roundtrip, found 15 hours ago

$257

Roundtrip

found 15 hours ago

Select Delta flight, departing Fri, Aug 29 from Boise to Lambert-St. Louis Intl., returning Fri, Sep 5, priced at $257 found 15 hours ago