Delta Flight AS3959 Deals & Information (2025/2026)

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Delta Flight 3959 Route Deals From $70

The cheapest prices found with in the last 7 days for return flights were $137 and $70 for one-way flights to Boise for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 21 - Tue, Oct 28
SEA
Seattle - Tacoma Intl.
BOI
Boise
$137 Roundtrip, found 4 days ago
$137
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Oct 21 from Seattle - Tacoma Intl. to Boise, returning Tue, Oct 28, priced at $137 found 4 days ago