Route Price Intelligence
Cheap Flights From St. Louis to Boston
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$360
Deals From
$307
Usually Costs
$307 – $436
Lowest We've Seen
$160
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$436
Feb
—
Mar
—
Apr
$350
May
$258
Jun
$331
Jul
$331
Aug
$281
Sep
$340
Oct
$436
Nov
$436
Dec
$446
Cheapest Average Expensive
Best Time to Fly from St. Louis to Boston
The cheapest time to fly from St. Louis to Boston is typically May, when fares average around $258. The most expensive month tends to be December at around $446. For the best deals, consider flying in May, August, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16068 price checksWorst: $221