Route Price Intelligence
Cheap Flights From Seattle to Boston
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$338
Deals From
$323
Usually Costs
$323 – $387
Lowest We've Seen
$187
Based on 8,565 price pointshigh confidence
Monthly Price Guide
Jan
$332
Feb
$332
Mar
$483
Apr
$347
May
$323
Jun
$373
Jul
$388
Aug
$343
Sep
$332
Oct
$332
Nov
$332
Dec
$352
Cheapest Average Expensive
Best Time to Fly from Seattle to Boston
The cheapest time to fly from Seattle to Boston is typically May, when fares average around $323. The most expensive month tends to be March at around $483. For the best deals, consider flying in May, October, November.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $18785 price checksWorst: $332