Route Price Intelligence
Cheap Flights From St. Louis to Boston
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$334
Great Deal
Under $313
Typical Range
$313 – $448
Lowest We've Seen
$160
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$325
Feb
$375
Mar
$456
Apr
$456
May
—
Jun
—
Jul
$455
Aug
$312
Sep
$297
Oct
$305
Nov
$374
Dec
$391
Cheapest Average Expensive
Best Time to Fly from St. Louis to Boston
The cheapest time to fly from St. Louis to Boston is typically September, when fares average around $297. The most expensive month tends to be April at around $456. For the best deals, consider flying in September, October, August.
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: August21,752 fares analyzedTypical low: $418