Delta Flight 3959 Deals & Information (2026/2027)

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Delta Flight 3959 Route Deals From $109

The cheapest prices found with in the last 7 days for return flights were $147 and $109 for one-way flights to Boise for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 18 - Sun, Jun 21
SEA
Seattle - Tacoma Intl.
BOI
Boise
$147 Roundtrip, found 2 days ago
$147
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jun 18 from Seattle - Tacoma Intl. to Boise, returning Sun, Jun 21, priced at $147 found 2 days ago
Mon, Jun 15 - Tue, Jun 16
SEA
Seattle - Tacoma Intl.
BOI
Boise
$186 Roundtrip, found 2 days ago
$186
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jun 15 from Seattle - Tacoma Intl. to Boise, returning Tue, Jun 16, priced at $186 found 2 days ago
Mon, Jun 15 - Tue, Jun 16
SEA
Seattle - Tacoma Intl.
BOI
Boise
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jun 15 from Seattle - Tacoma Intl. to Boise, returning Tue, Jun 16, priced at $217 found 2 days ago
Thu, Jun 18 - Sun, Jun 21
SEA
Seattle - Tacoma Intl.
BOI
Boise
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jun 18 from Seattle - Tacoma Intl. to Boise, returning Sun, Jun 21, priced at $217 found 2 days ago
Mon, Jun 15 - Tue, Jun 16
SEA
Seattle - Tacoma Intl.
BOI
Boise
$222 Roundtrip, found 2 days ago
$222
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jun 15 from Seattle - Tacoma Intl. to Boise, returning Tue, Jun 16, priced at $222 found 2 days ago
Thu, Jun 25 - Sun, Jun 28
SEA
Seattle - Tacoma Intl.
BOI
Boise
$238 Roundtrip, found 4 days ago
$238
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Jun 25 from Seattle - Tacoma Intl. to Boise, returning Sun, Jun 28, priced at $238 found 4 days ago
Fri, Jun 5 - Wed, Jun 10
SEA
Seattle - Tacoma Intl.
BOI
Boise
$253 Roundtrip, found 3 hours ago
$253
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Jun 5 from Seattle - Tacoma Intl. to Boise, returning Wed, Jun 10, priced at $253 found 3 hours ago