$189 Cheap American Airlines flights Seattle (SEA) to Ontario (ONT)

View $189 flight on Fri, Sep 19, 2025Opens in a new window

$189 Cheap American Airlines flights Seattle (SEA) to Ontario (ONT)

Prices were available within the past 7 days and start at $189 for one-way flights and $367 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Sep 19 - Fri, Sep 26
SEA
Seattle
ONT
Ontario
$367 Roundtrip, found 1 day ago
$367
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Sep 19 from Seattle to Ontario, returning Fri, Sep 26, priced at $367 found 1 day ago
Flights from Seattle (SEA) to Ontario (ONT)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Popular airline
Frontier Airlines
Distance
1530 km
Average flight time
2 hours 45 mins