Direct flights from Phoenix to St Louis

Did you mean Flights from St Louis to Phoenix?

Phoenix

United States

PHX

Phoenix Sky Harbor International Airport

St Louis

United States

STL

Lambert St Louis International Airport

Route: Nonstop service available
Distance: 1,259 miles
Marketing airlines: 5 airlines
Aircraft: 10 aircraft types
Dates: Oct 19, 2026 – Oct 11, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 7,500 points + $25.00 for PHX → STL, Economy, on 2026-10-31, booked with Alaska Atmos Rewards. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-10-23 – 2026-11-21.

PHX → STLEconomy
AA590
7,500 points+ $25.00
Departure
2026-10-31
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 03:21
PHX → STLEconomy
AA890
7,500 points+ $25.00
Departure
2026-10-31
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 03:21
PHX → STLEconomy
AA2303
7,500 points+ $25.00
Departure
2026-11-03
Seats seen
2
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 01:02
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-03
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 01:02
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-09
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 12:36
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-12
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 10:45
PHX → STLEconomy
AA2303
7,500 points+ $25.00
Departure
2026-11-17
Seats seen
8
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 10:01
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-17
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 10:01
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-19
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 03:19
PHX → STLEconomy
AA2303
7,500 points+ $25.00
Departure
2026-11-20
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 07:29
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-20
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 07:29
PHX → STLEconomy
AA2043
7,500 points+ $25.00
Departure
2026-11-21
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 08:59

Phoenix to St Louis route overview

Phoenix Sky Harbor International Airport (PHX) serves Phoenix; Lambert St Louis International Airport (STL) serves St Louis.

The airports are 1,259 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from PHX to STL.

Marketing airlines listed in the current schedule, including codeshare sellers, are American Airlines (AA), Alaska Airlines (AS), Starlux Airlines (JX), United Airlines (UA) and Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 11, 2027.

Marketing airlines on the Phoenix to St Louis route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Alaska Airlines (AS)Codeshare only
Starlux Airlines (JX)Codeshare only

Airline alliance affiliations represented: Oneworld, Star Alliance

Aircraft flying from PHX to STL

Frequently asked questions

Which airports serve the Phoenix to St Louis route?

Phoenix Sky Harbor International Airport (PHX) is the origin airport and Lambert St Louis International Airport (STL) is the destination airport.

How far is St Louis from Phoenix?

PHX and STL are approximately 1,259 miles apart by great-circle distance.

Are there direct flights from PHX to STL?

Yes. Roame's current schedule feed shows nonstop service from PHX to STL.

Which airlines market flights from PHX to STL?

Which aircraft fly from PHX to STL?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), Airbus A321 (321), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8), 7S7, Embraer 175 (short wing) (E75) and JET.