Phoenix to St Louis
PHXSTL
Fly from Phoenix to St Louis starting at USD 161 with Frontier Airlines.
Best fare available on Jul 22, 2026.
Limited seats. Better plans. Book before it's gone.
Phoenix to St Louis cheapest flights this week
Phoenix to St Louis monthly flight fare trend
Jul
from USD 161
Aug
No flights
Sep
No flights
Oct
No flights
Nov
No flights
Dec
No flights
Airport Details
Origin
Phoenix
Phoenix Sky Harbor International Airport (PHX)
Phoenix, PHX
Zone
Phoenix
Elev
1135 ft
Destination
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Flights from Phoenix
Flights from Phoenix to AtlantaFlights from Phoenix to AustinFlights from Phoenix to BostonFlights from Phoenix to CharlotteFlights from Phoenix to DenverFlights from Phoenix to DallasFlights from Phoenix to DetroitFlights from Phoenix to NewarkFlights from Phoenix to Fort LauderdaleFlights from Phoenix to Honolulu
