Find the Cheapest Flights from Saint Louis to Phoenix Sky Harbor International Airport

Unlock the cheapest flights and the best airfares from Saint Louis to Phoenix Sky Harbor International Airport. Make your dream trip both memorable and affordable!

Thu, Oct 16STL-PHX
Southwest Airlines

oneway$90

Thu, Oct 16STL-PHX
Delta Air Lines

oneway$94

Thu, Oct 16STL-PHX
American Airlines

oneway$106

Thu, Oct 16STL-PHX
United Airlines

oneway$110

Thu, Oct 16STL-PHX
Alaska Airlines

oneway$139

Thu, Oct 16STL-PHX
Hawaiian Airlines

oneway$145

Thu, Oct 16STL-PHX
Alaska Airlines

oneway$145

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Saint Louis to Phoenix Sky Harbor International Airport: Flight information

Cheapest flight found

Cheapest month to fly

Most popular airline

Flights per week

Popular Airlines flying from
Saint Louis to Phoenix Sky Harbor International Airport

From	To	Fare Type	Departure	Price
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Oct 16, 2025 $90 Viewed: a month ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Oct 16, 2025 $90 Viewed: a month ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Feb 24, 2024 $141 Viewed: a year ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Feb 24, 2024 $141 Viewed: a year ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Jan 03, 2025 $196 Viewed: 3 months ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Dec 23, 2024 $205 Viewed: 3 months ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Dec 28, 2024 $205 Viewed: 3 months ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Dec 21, 2023 $259 Viewed: a year ago
Saint Louis Phoenix Sky Harbor International Airport oneway / Economy Aug 12, 2023 $311 Viewed: 2 years ago

From

Saint Louis

Oct 16, 2025

To

Phoenix Sky Harbor International Airport

oneway / Economy

$90

Viewed: a month ago

From

Saint Louis

Oct 16, 2025

To

Phoenix Sky Harbor International Airport

oneway / Economy

$90

Viewed: a month ago

From

Saint Louis

Feb 24, 2024

To

Phoenix Sky Harbor International Airport

oneway / Economy

$141

Viewed: a year ago

From

Saint Louis

Feb 24, 2024

To

Phoenix Sky Harbor International Airport

oneway / Economy

$141

Viewed: a year ago

From

Saint Louis

Jan 03, 2025

To

Phoenix Sky Harbor International Airport

oneway / Economy

$196

Viewed: 3 months ago

From

Saint Louis

Dec 23, 2024

To

Phoenix Sky Harbor International Airport

oneway / Economy

$205

Viewed: 3 months ago

From

Saint Louis

Dec 28, 2024

To

Phoenix Sky Harbor International Airport

oneway / Economy

$205

Viewed: 3 months ago

From

Saint Louis

Dec 21, 2023

To

Phoenix Sky Harbor International Airport

oneway / Economy

$259

Viewed: a year ago

From

Saint Louis

Aug 12, 2023

To

Phoenix Sky Harbor International Airport

oneway / Economy

$311

Viewed: 2 years ago

Cheapest flight found

Jan 2024

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Oct 2024

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Nov 2024

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Dec 2024

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Feb 2024

$141

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