Route Price Intelligence
Cheap Flights From St. Louis to Boston
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$441
Deals From
$366
Usually Costs
$366 – $441
Lowest We've Seen
$180
Based on 8,515 price pointshigh confidence
Monthly Price Guide
Jan
$498
Feb
$383
Mar
$360
Apr
$315
May
$389
Jun
$441
Jul
$441
Aug
$438
Sep
$439
Oct
$441
Nov
$448
Dec
$461
Cheapest Average Expensive
Best Time to Fly from St. Louis to Boston
The cheapest time to fly from St. Louis to Boston is typically April, when fares average around $315. The most expensive month tends to be January at around $498. For the best deals, consider flying in April, March, February.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $18058 price checksWorst: $239