Flights from Boise to Washington

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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.

Delta
Tue, Aug 26 - Mon, Sep 1
BOI
Boise
STL
Lambert-St. Louis Intl.
$165 Roundtrip, found 17 hours ago
$165
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Aug 26 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $165 found 17 hours ago
Delta
Sun, Aug 31 - Mon, Sep 1
BOI
Boise
STL
Lambert-St. Louis Intl.
$187 Roundtrip, found 17 hours ago
$187
Roundtrip
found 17 hours ago
Select Delta flight, departing Sun, Aug 31 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $187 found 17 hours ago
Delta
Thu, Aug 28 - Mon, Sep 1
BOI
Boise
STL
Lambert-St. Louis Intl.
$207 Roundtrip, found 17 hours ago
$207
Roundtrip
found 17 hours ago
Select Delta flight, departing Thu, Aug 28 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $207 found 17 hours ago
Delta
Fri, Aug 29 - Mon, Sep 1
BOI
Boise
STL
Lambert-St. Louis Intl.
$211 Roundtrip, found 17 hours ago
$211
Roundtrip
found 17 hours ago
Select Delta flight, departing Fri, Aug 29 from Boise to Lambert-St. Louis Intl., returning Mon, Sep 1, priced at $211 found 17 hours ago
Delta
Thu, Aug 28 - Sun, Aug 31
BOI
Boise
STL
Lambert-St. Louis Intl.
$229 Roundtrip, found 17 hours ago
$229
Roundtrip
found 17 hours ago
Select Delta flight, departing Thu, Aug 28 from Boise to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $229 found 17 hours ago
Delta
Fri, Aug 29 - Sun, Aug 31
BOI
Boise
STL
Lambert-St. Louis Intl.
$233 Roundtrip, found 17 hours ago
$233
Roundtrip
found 17 hours ago
Select Delta flight, departing Fri, Aug 29 from Boise to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $233 found 17 hours ago
Delta
Thu, Aug 28 - Fri, Sep 5
BOI
Boise
STL
Lambert-St. Louis Intl.
$253 Roundtrip, found 17 hours ago
$253
Roundtrip
found 17 hours ago
Select Delta flight, departing Thu, Aug 28 from Boise to Lambert-St. Louis Intl., returning Fri, Sep 5, priced at $253 found 17 hours ago
Delta
Fri, Aug 29 - Fri, Sep 5
BOI
Boise
STL
Lambert-St. Louis Intl.
$257 Roundtrip, found 17 hours ago
$257
Roundtrip
found 17 hours ago
Select Delta flight, departing Fri, Aug 29 from Boise to Lambert-St. Louis Intl., returning Fri, Sep 5, priced at $257 found 17 hours ago