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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
$257
Usually Costs
$257$302
Lowest We've Seen
$145
Based on 8,404 price pointshigh confidence

Monthly Price Guide

Jan
$297
Feb
$338
Mar
$310
Apr
$245
May
$230
Jun
$274
Jul
$277
Aug
$270
Sep
$297
Oct
$297
Nov
$302
Dec
$318
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 $230. The most expensive month tends to be February at around $338. For the best deals, consider flying in May, April, August.

Cheapest Fare Found (Last 90 Days)

The lowest round-trip price available on each day we checked

$145$161$178$194$210Jan 7Feb 21Apr 5
Best: $14587 price checksWorst: $210
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