
$69 Cheap Frontier Airlines flights Phoenix (PHX) to St. Louis (STL)
Prices were available within the past 7 days and start at $69 for one-way flights and $165 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jan 14 - Wed, Jan 21
PHX
Phoenix
STL
St. Louis
$165 Roundtrip, found 1 day ago
$165
Roundtrip
found 1 day ago

Mon, Jan 19 - Wed, Jan 21
PHX
Phoenix
STL
St. Louis
$174 Roundtrip, found 1 day ago
$174
Roundtrip
found 1 day ago

Sat, Jan 17 - Wed, Jan 21
PHX
Phoenix
STL
St. Louis
$184 Roundtrip, found 1 day ago
$184
Roundtrip
found 1 day ago

Fri, Jan 16 - Wed, Jan 21
PHX
Phoenix
STL
St. Louis
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago

Wed, Jan 14 - Mon, Jan 26
PHX
Phoenix
STL
St. Louis
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago

Sun, Jan 18 - Wed, Jan 21
PHX
Phoenix
STL
St. Louis
$200 Roundtrip, found 1 day ago
$200
Roundtrip
found 1 day ago
Find the cheapest month to fly from Phoenix (PHX) to St. Louis (STL)
November is typically the cheapest month to fly
From $112 - $306 per traveler.
Travel information
Origin airport | Sky Harbor Intl. |
|---|---|
Destination airport | Lambert-St. Louis Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United |
Popular airline | United |
Distance | 2014 km |
Average flight time | 3 hours 53 mins |
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Most Popular Frontier Airlines Routes from Phoenix
Most Popular Frontier Airlines Routes from St. Louis
- Atlanta to Houston (ATL - IAH)
- Washington to San Salvador (IAD - SAL)
- New York to Orlando (JFK - MCO)
- New York to Atlanta (JFK - ATL)
- Chicago to Orlando (ORD - MCO)
- Kansas City to Phoenix (MCI - PHX)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Newark Liberty Intl. Airport to Fort Lauderdale (EWR - FLL)
- Atlanta to Denver (ATL - DEN)
- Boston to Raleigh (BOS - RDU)
Popular Domestic Routes in Lambert-St. Louis Intl.
- Atlanta to Houston (ATL - IAH)
- New York to Atlanta (LGA - ATL)
- Atlanta to New York (ATL - LGA)
- Chicago to Miami (ORD - MIA)
- Tampa to Charlotte (TPA - CLT)
- Boston to Raleigh (BOS - RDU)
- Atlanta to Houston (ATL - IAH)
- Tampa to Charlotte (TPA - CLT)
- Philadelphia to Atlanta (PHL - ATL)
- Boston to Raleigh (BOS - RDU)