Route Price Intelligence
Cheap Flights From Philadelphia to Seattle
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$329
Deals From
$289
Usually Costs
$289 – $339
Lowest We've Seen
$160
Based on 8,748 price pointshigh confidence
Monthly Price Guide
Jan
$329
Feb
$329
Mar
$438
Apr
$250
May
$270
Jun
$330
Jul
$335
Aug
$310
Sep
$329
Oct
$329
Nov
$329
Dec
$329
Cheapest Average Expensive
Best Time to Fly from Philadelphia to Seattle
The cheapest time to fly from Philadelphia to Seattle is typically April, when fares average around $250. The most expensive month tends to be March at around $438. For the best deals, consider flying in April, May, August.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16087 price checksWorst: $225