Route Price Intelligence
Cheap Flights From Seattle to Boston
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$343
Deals From
$332
Usually Costs
$332 – $392
Lowest We've Seen
$187
Based on 8,448 price pointshigh confidence
Monthly Price Guide
Jan
$332
Feb
$332
Mar
$532
Apr
$382
May
$332
Jun
$378
Jul
$392
Aug
$343
Sep
$332
Oct
$332
Nov
$332
Dec
$378
Cheapest Average Expensive
Best Time to Fly from Seattle to Boston
The cheapest time to fly from Seattle to Boston is typically October, when fares average around $332. The most expensive month tends to be March at around $532. For the best deals, consider flying in October, November, January.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $19788 price checksWorst: $332