Route Price Intelligence
Cheap Flights From St. Louis to Boise
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$437
Deals From
$410
Usually Costs
$410 – $445
Lowest We've Seen
$177
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$437
Feb
—
Mar
—
Apr
$612
May
$403
Jun
$401
Jul
$389
Aug
$385
Sep
$437
Oct
$445
Nov
$437
Dec
$437
Cheapest Average Expensive
Best Time to Fly from St. Louis to Boise
The cheapest time to fly from St. Louis to Boise is typically August, when fares average around $385. The most expensive month tends to be April at around $612. For the best deals, consider flying in August, July, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $20263 price checksWorst: $317