Route Price Intelligence
Cheap Flights From St. Louis to San Diego
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$293
Deals From
$250
Usually Costs
$250 – $300
Lowest We've Seen
$145
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$297
Feb
—
Mar
—
Apr
$288
May
$225
Jun
$250
Jul
$250
Aug
$270
Sep
$292
Oct
$297
Nov
$310
Dec
$322
Cheapest Average Expensive
Best Time to Fly from St. Louis to San Diego
The cheapest time to fly from St. Louis to San Diego is typically May, when fares average around $225. The most expensive month tends to be December at around $322. For the best deals, consider flying in May, June, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16071 price checksWorst: $210