Nonstop route
Seattle to Philadelphia nonstop
Yes — American, Alaska and Delta fly SEA to PHL nonstop year-round — about 6× daily.
SEASeattle
✈
PHLPhiladelphia
6× daily39.4 flights a week
Year-round39.4/wk Jun vs 14.2/wk Jan
$200–$425typical one-way · median $275
2,379miles nonstop
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Fares are what people actually paid: half of the 2,974 tickets in the US DOT fare survey for this route sold between $200 and $425 one way, median $275. That survey runs a couple of quarters behind, so treat it as the shape of the route's pricing rather than today's quote.
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