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Cheap Flights from St. Louis to Sky Harbor International Airport

  • One way
  • Round-trip
sortSort by: Lowest Price
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from St. Louis to Sky Harbor International Airport
Frontier Airlines
From $38
Sun Country Airlines
From $84
American Airlines
From $115
Delta Air Lines
From $121
United Airlines
From $133
Southwest Airlines
From $144
Southern Airways Express
From $157
Alaska Airlines
From $171
Spirit Airlines
From $281
ANA airlines
Find more flights and airlines

There are 1 airport(s) in St. Louis. Discover the top routes now!

Flight Schedule from St. Louis to Sky Harbor International Airport
Flight info.
Departure
Arrival
Weekly Schedule
  1. SY1626

    07:30

    STL

    1.6h

    09:09

    MSP

    ------S
  2. SY605

    16:34

    MSP

    3.2h

    17:47

    PHX

    SMTWTFS
  3. F93301

    15:53

    STL

    2.4h

    17:17

    DEN

    ---W--S
  4. F92105

    16:20

    DEN

    2.0h

    17:18

    PHX

    SMTWTFS
  5. F93301

    15:53

    STL

    2.4h

    17:17

    DEN

    ---W--S
  6. F93467

    22:38

    DEN

    1.8h

    23:28

    PHX

    SMTWTFS
  7. F92017

    17:01

    STL

    3.7h

    18:43

    LAS

    ----T--
  8. F91896

    18:22

    LAS

    1.3h

    19:42

    PHX

    --T----
  9. F93107

    19:51

    STL

    3.7h

    21:34

    LAS

    SMTW-FS
  10. F91896

    18:22

    LAS

    1.3h

    19:42

    PHX

    --T----
  11. F9007

    20:04

    STL

    2.5h

    21:35

    DEN

    S-T-TF-
  12. F91375

    11:32

    DEN

    2.0h

    12:32

    PHX

    SMTWTFS
  13. F9007

    20:04

    STL

    2.5h

    21:35

    DEN

    S-T-TF-
  14. F93467

    22:38

    DEN

    1.8h

    23:28

    PHX

    SMTWTFS

Flight Info of Flights from St. Louis to Sky Harbor International Airport

Cheapest round-trip ticket price

$78

Cheapest nonstop flight price

$37

Off-season for travel

May

Peak season for travel

September

FAQs for St. Louis to Sky Harbor International Airport Flights

  • When are flight tickets from St. Louis (STL) to Phoenix (PHX) the cheapest?

    Airlines adjust prices for flights from St. Louis to Phoenix based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from St. Louis (STL) to Phoenix (PHX) cost?

    According to Trip.com's data, the lowest price is around $335.
  • How long does it take to fly from St. Louis (STL) to Phoenix (PHX) and what is the distance?

    It takes around 3 hours 51 minutes to fly from St. Louis (STL) to Phoenix (PHX).
  • What are the most popular airlines that fly from St. Louis (STL) to Phoenix (PHX)?

    Airlines with flights from St. Louis (STL) to Phoenix (PHX): Southwest Airlines, American Airlines and Alaska Airlines.