SEA → STL · 1,709 mi
Seattle to St. Louis
$478typical business / first
Only 72 premium tickets were recorded here, so these figures are rough.
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What people paid
cheapest
$394
low
$454
typical
$478
high
$528
priciest
$578
Economy on this route starts around $138, so a premium seat runs about 2.86× the cheapest coach fare.
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Value
About 19% below the typical premium for a medium-haul route. Routes this length normally run 3.55× economy; this one is 2.86×.
By airline
No per-airline breakdown recorded on this route.
From 72 premium and 1,224 economy tickets in the US DOT Airline Origin & Destination Survey, 2025 Q2. Historical, not live — confirm with the airline.