Route Price Intelligence
Cheap Flights From Boise to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$437
Deals From
$406
Usually Costs
$406 – $447
Lowest We've Seen
$138
Based on 469 price pointshigh confidence
Monthly Price Guide
Jan
$437
Feb
—
Mar
—
Apr
$608
May
$412
Jun
$426
Jul
$426
Aug
$388
Sep
$437
Oct
$441
Nov
$437
Dec
$445
Cheapest Average Expensive
Best Time to Fly from Boise to Saint Louis
The cheapest time to fly from Boise to Saint Louis is typically August, when fares average around $388. The most expensive month tends to be April at around $608. For the best deals, consider flying in August, May, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $18062 price checksWorst: $270