Route Price Intelligence
Cheap Flights From Boston to Seattle
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$412
Great Deal
Under $395
Typical Range
$395 – $466
Lowest We've Seen
$239
Based on 542 price pointshigh confidence
Monthly Price Guide
Jan
$363
Feb
$368
Mar
$422
Apr
$422
May
$412
Jun
$412
Jul
$517
Aug
$427
Sep
$360
Oct
$360
Nov
$411
Dec
$410
Cheapest Average Expensive
Best Time to Fly from Boston to Seattle
The cheapest time to fly from Boston to Seattle is typically October, when fares average around $360. The most expensive month tends to be July at around $517. For the best deals, consider flying in October, September, January.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: March11,359 fares analyzedTypical low: $322
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