Delta Flight 3605 Deals & Information (2025/2026)

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Delta Flight 3605 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $128 and $79 for one-way flights to Tri-Cities for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 17 - Tue, Aug 26
SEA
Seattle - Tacoma Intl.
PSC
Tri-Cities
$128 Roundtrip, found 3 days ago
$128
Roundtrip
found 3 days ago
Select Delta flight, departing Sun, Aug 17 from Seattle - Tacoma Intl. to Tri-Cities, returning Tue, Aug 26, priced at $128 found 3 days ago
Sun, Aug 17 - Mon, Sep 1
SEA
Seattle - Tacoma Intl.
PSC
Tri-Cities
$170 Roundtrip, found 16 hours ago
$170
Roundtrip
found 16 hours ago
Select Delta flight, departing Sun, Aug 17 from Seattle - Tacoma Intl. to Tri-Cities, returning Mon, Sep 1, priced at $170 found 16 hours ago
Tue, Aug 5 - Tue, Aug 12
SEA
Seattle - Tacoma Intl.
PSC
Tri-Cities
$200 Roundtrip, found 5 days ago
$200
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Aug 5 from Seattle - Tacoma Intl. to Tri-Cities, returning Tue, Aug 12, priced at $200 found 5 days ago
Fri, Aug 8 - Wed, Aug 27
SEA
Seattle - Tacoma Intl.
PSC
Tri-Cities
$202 Roundtrip, found 16 hours ago
$202
Roundtrip
found 16 hours ago
Select Delta flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to Tri-Cities, returning Wed, Aug 27, priced at $202 found 16 hours ago
Tue, Aug 5 - Thu, Aug 14
SEA
Seattle - Tacoma Intl.
PSC
Tri-Cities
$210 Roundtrip, found 5 days ago
$210
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Aug 5 from Seattle - Tacoma Intl. to Tri-Cities, returning Thu, Aug 14, priced at $210 found 5 days ago