Route Price Intelligence
Cheap Flights From St. Louis to Boston
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$447
Deals From
$338
Usually Costs
$338 – $461
Lowest We've Seen
$160
Based on 8,305 price pointshigh confidence
Monthly Price Guide
Jan
$461
Feb
$481
Mar
$652
Apr
$330
May
$255
Jun
$344
Jul
$376
Aug
$356
Sep
$461
Oct
$461
Nov
$471
Dec
$471
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 $255. The most expensive month tends to be March at around $652. For the best deals, consider flying in May, April, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16088 price checksWorst: $239