Route Price Intelligence
Cheap Flights From St. Louis to St. Lucia
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$688
Deals From
$645
Usually Costs
$645 – $792
Lowest We've Seen
$362
Based on 8,208 price pointshigh confidence
Monthly Price Guide
Jan
$739
Feb
$747
Mar
$661
Apr
$626
May
$679
Jun
$698
Jul
$748
Aug
$620
Sep
$635
Oct
$655
Nov
$632
Dec
$684
Cheapest Average Expensive
Best Time to Fly from St. Louis to St. Lucia
The cheapest time to fly from St. Louis to St. Lucia is typically August, when fares average around $620. The most expensive month tends to be July at around $748. For the best deals, consider flying in August, April, November.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $36259 price checksWorst: $538