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
$296
Usually Costs
$296 – $339
Lowest We've Seen
$160
Based on 8,540 price pointshigh confidence
Monthly Price Guide
Jan
$329
Feb
$329
Mar
$458
Apr
$265
May
$270
Jun
$316
Jul
$330
Aug
$326
Sep
$329
Oct
$329
Nov
$329
Dec
$339
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 $265. The most expensive month tends to be March at around $458. For the best deals, consider flying in April, May, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16089 price checksWorst: $225