Delta Flight 3959 Deals & Information (2025/2026)

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Delta Flight 3959 Route Deals From $69

The cheapest prices found with in the last 7 days for return flights were $137 and $69 for one-way flights to Boise for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 20 - Wed, Aug 27
SEA
Seattle - Tacoma Intl.
BOI
Boise
$137 Roundtrip, found 1 day ago
$137
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 20 from Seattle - Tacoma Intl. to Boise, returning Wed, Aug 27, priced at $137 found 1 day ago
Wed, Jun 11 - Sat, Jun 14
SEA
Seattle - Tacoma Intl.
BOI
Boise
$139 Roundtrip, found 4 days ago
$139
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jun 11 from Seattle - Tacoma Intl. to Boise, returning Sat, Jun 14, priced at $139 found 4 days ago
Wed, Oct 22 - Sat, Oct 25
SEA
Seattle - Tacoma Intl.
BOI
Boise
$149 Roundtrip, found 2 days ago
$149
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 22 from Seattle - Tacoma Intl. to Boise, returning Sat, Oct 25, priced at $149 found 2 days ago
Fri, Jun 6 - Mon, Jun 9
SEA
Seattle - Tacoma Intl.
BOI
Boise
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Jun 6 from Seattle - Tacoma Intl. to Boise, returning Mon, Jun 9, priced at $174 found 1 day ago
Wed, Oct 22 - Sat, Oct 25
SEA
Seattle - Tacoma Intl.
BOI
Boise
$180 Roundtrip, found 2 days ago
$180
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Oct 22 from Seattle - Tacoma Intl. to Boise, returning Sat, Oct 25, priced at $180 found 2 days ago