SEA → ONT · 956 mi
Seattle to Ontario
$328typical business / first
✈️
What people paid
cheapest
$234
low
$278
typical
$328
high
$358
priciest
$414
Economy on this route starts around $84, so a premium seat runs about 2.8× the cheapest coach fare.
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Value
About 21% below the typical premium for a medium-haul route. Routes this length normally run 3.55× economy; this one is 2.8×.
By airline
No per-airline breakdown recorded on this route.
From 137 premium and 3,207 economy tickets in the US DOT Airline Origin & Destination Survey, 2025 Q2. Historical, not live — confirm with the airline.