Route Price Intelligence
Cheap Flights From St. Louis to Phoenix
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$333
Deals From
$250
Usually Costs
$250 – $395
Lowest We've Seen
$93
Based on 3,549 price pointshigh confidence
Monthly Price Guide
Jan
$395
Feb
$415
Mar
$1,603
Apr
$225
May
$205
Jun
$230
Jul
$250
Aug
$250
Sep
$395
Oct
$395
Nov
$410
Dec
$415
Cheapest Average Expensive
Best Time to Fly from St. Louis to Phoenix
The cheapest time to fly from St. Louis to Phoenix is typically May, when fares average around $205. The most expensive month tends to be March at around $1,603. For the best deals, consider flying in May, April, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $12373 price checksWorst: $335