Route Price Intelligence
Cheap Flights From St. Louis to San Diego
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$292
Deals From
$250
Usually Costs
$250 – $308
Lowest We've Seen
$145
Based on 4,123 price pointshigh confidence
Monthly Price Guide
Jan
$297
Feb
$319
Mar
$384
Apr
$260
May
$225
Jun
$250
Jul
$270
Aug
$270
Sep
$297
Oct
$297
Nov
$317
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 March at around $384. For the best deals, consider flying in May, June, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16075 price checksWorst: $210