Frontier Airlines flights from STL to PHX
Find comprehensive Frontier Airlines flight information, schedules, and booking details for direct flights from STL to PHX. Frontier Airlines operates 4-13 flights daily flights on this route.• Flight Duration: 3h 10m - 3h 47m (average flight time)• Distance: 1266 miles (2037 km) (air miles between airports)• Daily Flights: 4-13 flights (scheduled departures per day)
STL
PHX
FLIGHT TIME
3h 10m - 3h 47m
FLIGHT DISTANCE
1266 miles (2037 km)
3h 33m - 3h 33m
15:53
15:53
1266 miles (2037 km)
April
1 (Show)
55
Frontier Airlines Flight Schedule from STL to PHX
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
F92075 |  Frontier Airlines | 15:53 | 18:26:00 | Airbus A320neo |
Frontier Airlines Monthly Flight Calendar
December 2025
Route Insights
Pricing patterns: April typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 15:00, offering more flight options and potentially better connections.
STL - PHX flight price statistics
$417
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$399
Jan$302
Feb$379
Mar$262
Apr$282
May$455
Jun$578
Jul$400
Aug$652
Sep$452
Oct$440
Nov$408
DecFrontier Airlines Terminal Information
Terminal information for Frontier Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Frontier Airlines Flights
How many Frontier Airlines flights operate from STL to PHX?
Frontier Airlines operates 1 flight from STL to PHX.
What city does PHX airport serve?
PHX airport serves Phoenix.
How long is the Frontier Airlines flight from STL to PHX?
The flight duration is approximately 3h 10m - 3h 47m.
What is the distance from STL to PHX?
The distance is 1266 miles (2037 km).
What aircraft does Frontier Airlines use on this route?
Frontier Airlines uses Airbus A320neo on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: Southwest Airlines, American Airlines.
What is the cheapest month to fly Frontier Airlines from STL to PHX?
April is typically the cheapest month to fly Frontier Airlines on this route.
What is the average price for a Frontier Airlines flight from STL to PHX?
The average price for a round-trip Frontier Airlines flight on this route is approximately $417. Prices can vary based on booking time and demand.
How many Frontier Airlines flights operate per week on this route?
Frontier Airlines operates approximately 55 flights per week from STL to PHX.