Route Price Intelligence
Cheap Flights From Boise to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$389
Deals From
$383
Usually Costs
$383 – $411
Lowest We've Seen
$138
Based on 8,212 price pointshigh confidence
Monthly Price Guide
Jan
$612
Feb
$312
Mar
$297
Apr
$290
May
$368
Jun
$397
Jul
$411
Aug
$397
Sep
$397
Oct
$411
Nov
$405
Dec
$411
Cheapest Average Expensive
Best Time to Fly from Boise to Saint Louis
The cheapest time to fly from Boise to Saint Louis is typically April, when fares average around $290. The most expensive month tends to be January at around $612. 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: $13861 price checksWorst: $190