Alaska Airlines Flight WN615 Deals & Information (2025/2026)

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Alaska Airlines Flight 615 Route Deals From $79

The cheapest prices found with in the last 7 days for return flights were $157 and $79 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 23 - Wed, Sep 24
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$157 Roundtrip, found 6 hours ago
$157
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Tue, Sep 23 from Denver Intl. to Seattle - Tacoma Intl., returning Wed, Sep 24, priced at $157 found 6 hours ago
Fri, Sep 26 - Tue, Sep 30
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$165 Roundtrip, found 3 hours ago
$165
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Fri, Sep 26 from Denver Intl. to Seattle - Tacoma Intl., returning Tue, Sep 30, priced at $165 found 3 hours ago
Thu, Sep 11 - Sat, Sep 13
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$168 Roundtrip, found 3 hours ago
$168
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Thu, Sep 11 from Denver Intl. to Seattle - Tacoma Intl., returning Sat, Sep 13, priced at $168 found 3 hours ago
Sat, Sep 13 - Sat, Sep 20
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$177 Roundtrip, found 3 hours ago
$177
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Sat, Sep 13 from Denver Intl. to Seattle - Tacoma Intl., returning Sat, Sep 20, priced at $177 found 3 hours ago
Thu, Sep 11 - Sat, Sep 13
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$180 Roundtrip, found 3 hours ago
$180
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Thu, Sep 11 from Denver Intl. to Seattle - Tacoma Intl., returning Sat, Sep 13, priced at $180 found 3 hours ago
Wed, Aug 13 - Tue, Aug 19
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$190 Roundtrip, found 12 hours ago
$190
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed, Aug 13 from Denver Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $190 found 12 hours ago
Thu, Sep 4 - Sun, Sep 7
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$195 Roundtrip, found 10 hours ago
$195
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Thu, Sep 4 from Denver Intl. to Seattle - Tacoma Intl., returning Sun, Sep 7, priced at $195 found 10 hours ago
Sat, Sep 20 - Sat, Sep 27
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$197 Roundtrip, found 2 hours ago
$197
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sat, Sep 20 from Denver Intl. to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $197 found 2 hours ago
Wed, Aug 13 - Tue, Aug 19
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$200 Roundtrip, found 12 hours ago
$200
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed, Aug 13 from Denver Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $200 found 12 hours ago
Wed, Aug 6 - Tue, Aug 19
DEN
Denver Intl.
SEA
Seattle - Tacoma Intl.
$200 Roundtrip, found 7 hours ago
$200
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Aug 6 from Denver Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $200 found 7 hours ago

Frequently asked questions

What route does flight number AS615 take?
Flight number AS615 takes 2 hours and 44 minutes to fly directly from Ontario Airport to Seattle - Tacoma Intl. Airport (SEA). Sure, there’s magic in the destination, but half the fun is in the journey!
How often is AS615 on time?
About 80% of AS615 flights run on time — so if you’re traveling between Ontario Airport and Seattle, WA Airport (SEA-Seattle - Tacoma Intl.), you can breathe easy knowing that you will land at your destination ASAP. On the rare occasion that your Alaska Airlines service runs late, you can expect a wait time of about 19 minutes. Thanks to the carrier’s exceptional service, this route has a 2.5-star rating.
What terminal does AS615 fly out of?
You’ll likely be boarding the plane from Terminal 2 if you’re traveling on flight number AS615 direct from Los Angeles - Ontario Intl. Airport (ONT) to Sea-Tac Airport.
What kind of plane is on flight number AS615?
The route for flight number AS615 is almost always Ontario, CA Airport (ONT-Los Angeles - Ontario Intl.) to Sea-Tac Airport, and the Boeing 737-900 is the type of aircraft you’re likely to be taking off on.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AS615 flight with Travelocity, please visit our Customer Service Portal.