SEA → PHL · 2,378 mi
Seattle to Philadelphia
$858typical business / first
✈️
What people paid
cheapest
$566
low
$658
typical
$858
high
$1,078
priciest
$1,343
Economy on this route starts around $163, so a premium seat runs about 3.47× the cheapest coach fare.
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Value
About 2% below the typical premium for a medium-haul route. Routes this length normally run 3.55× economy; this one is 3.47×.
By airline
| American | ~$825 |
| Alaska | ~$932 |
From 102 premium and 1,683 economy tickets in the US DOT Airline Origin & Destination Survey, 2025 Q2. Historical, not live — confirm with the airline.