Alaska Airlines Flights from Seattle to Ontario

DPA Name: DPA QA Test - Details / example to Los Angeles/LAX

$

Seattle (SEA)to

Los Angeles (LAX)
Depart: Mar 9, 2026
From
$89
Seen: 17 hours ago
One-way
Economy
Cheap flights from Seattle to Ontario

Lowest fares from Seattle to Ontario

*Fares and availability are based on round trip searches for 1 passenger (1 adult) in Economy class in the last 48 hours. Fares are inclusive of tax and surcharges, and subject to availability. link.

One-way low-fare flights Seattle to Ontario.*

$
One-way low-fare flights Seattle to Ontario.*
From
To
Fare Type
Dates
Price
Seattle (SEA)Ontario (ONT)One-way
|
Economy		Depart: Dec 11, 2026

From

$139

Seen: 1 day ago

*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.