Route Price Intelligence
Cheap Flights From St. Louis to Boise
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$434
Great Deal
Under $388
Typical Range
$388 – $468
Lowest We've Seen
$177
Based on 231 price pointshigh confidence
Monthly Price Guide
Jan
$447
Feb
$447
Mar
$447
Apr
$477
May
—
Jun
—
Jul
—
Aug
$471
Sep
$360
Oct
$374
Nov
$415
Dec
$423
Cheapest Average Expensive
Best Time to Fly from St. Louis to Boise
The cheapest time to fly from St. Louis to Boise is typically September, when fares average around $360. The most expensive month tends to be April at around $477. For the best deals, consider flying in September, October, November.
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: August15,552 fares analyzedTypical low: $402