
Alaska Airlines Flight 642 Deals & Information (2025/2026)
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Alaska Airlines Flight 642 Route Deals From $65
The cheapest prices found with in the last 7 days for return flights were $129 and $65 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$129 Roundtrip, just found
$129
Roundtrip
just found
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$131 Roundtrip, just found
$131
Roundtrip
just found
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$133 Roundtrip, found 14 hours ago
$133
Roundtrip
found 14 hours ago
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$135 Roundtrip, just found
$135
Roundtrip
just found
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$144 Roundtrip, found 1 hour ago
$144
Roundtrip
found 1 hour ago
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$148 Roundtrip, just found
$148
Roundtrip
just found
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$148 Roundtrip, found 1 hour ago
$148
Roundtrip
found 1 hour ago
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$151 Roundtrip, found 16 hours ago
$151
Roundtrip
found 16 hours ago
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$153 Roundtrip, just found
$153
Roundtrip
just found
SEA
Seattle - Tacoma Intl.
DEN
Denver Intl.
$158 Roundtrip, found 3 hours ago
$158
Roundtrip
found 3 hours ago