How many flights from St. Louis to Phoenix are non-stop?

In the trailing 90 days, approximately 90% of flights from St. Louis to Phoenix were non-stop. For connecting flights, the median number of stopovers was 2. This high percentage of direct flights suggests that travelers typically have many options for non-stop travel on this route.

What's the flight time from St. Louis to Phoenix?

The median direct flight time from St. Louis to Phoenix is 3 hours and 25 minutes, covering a distance of 2027 kilometers. For flights with one stop, the median travel time increases significantly to 9 hours and 2 minutes. Travelers can expect a considerably longer journey if their itinerary includes a layover.

Are there frequently good prices on flights from St. Louis to Phoenix?

Historically, good prices on flights from St. Louis to Phoenix are regularly available. This route is classified as having regular deal frequency across the trailing quarter. Travelers can typically find favorable pricing when planning their trips between these two cities.

Flights From St. Louis

To Phoenix

Cheap Flights from St. Louis to Phoenix

Browse current best options from St. Louis. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

St. Louis

RatePunk searches hundreds of travel sites at once for deals on flights to Phoenix

Prices updated today

485 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Nov 2, 2026.)

Today’s best flight deals from St. Louis to Phoenix

Explore current cheapest deals departing from St. Louis to Phoenix

2026-11-16 – 2026-11-18
STL - Phoenix
79% AI deal score
$250
$115
Round trip
2026-11-25 – 2026-11-30
STL - Phoenix
77% AI deal score
$240
$165
Round trip
2026-12-19 – 2026-12-29
STL - Phoenix
47% AI deal score
$234
$231
Round trip
2026-12-22 – 2026-12-29
STL - Phoenix
66% AI deal score
$259
$232
Round trip
2026-11-15 – 2026-11-18
STL - Phoenix
49% AI deal score
$250
$235
Round trip
2026-11-14 – 2026-11-16
STL - Phoenix
48% AI deal score
$254
$247
Round trip
2026-11-12 – 2026-11-16
STL - Phoenix
46% AI deal score
$256
$274
Round trip
2026-12-20 – 2026-12-23
STL - Phoenix
46% AI deal score
$271
$286
Round trip
2026-12-24 – 2026-12-28
STL - Phoenix
45% AI deal score
$271
$300
Round trip
2026-11-04 – 2026-11-07
STL - Phoenix
46% AI deal score
$302
$315
Round trip

St. Louis to Phoenix: Overview

Insights for flights from St. Louis to Phoenix

Only 5% of recent fares from St. Louis to Phoenix were classified as a good price. Right now, fares for this route are above the typical level, with prices typically ranging from $396–$803, and a median of $573 over the last 90 days. New deals for flights from St. Louis to Phoenix show up several times a week, indicating a regular cadence for price changes.

When is the cheapest time to fly from St. Louis to Phoenix? You'll find the most affordable fares in December, with a median price of $263. January is also a strong contender for lower prices, showing a median of $365. Travelers can also consider July, where the median fare is $407.

Most itineraries for this route connect at least once, with 90% of recent fares including connections. When connecting, the typical number of stopovers is 2. This means that while direct flights from St. Louis to Phoenix are available, you are more likely to encounter itineraries with one or more stops.

A typical journey from St. Louis to Phoenix takes about 3h 25m, including connections. For non-stop flights, the median duration is also 3h 25m, while connecting flights have a significantly longer median journey time of 18h 17m. This difference highlights the impact of layovers on overall travel time for this route.

The distance between St. Louis and Phoenix is 2027 kilometers, classifying this as a medium-haul route. This distance typically involves a flight duration that can vary based on whether you choose a direct or connecting itinerary.

How much is a round trip from St. Louis to Phoenix

Regular price: $170 - $338

Prices for flights from St. Louis to Phoenix are currently below the regular range.

The regular price range for this route is $170 to $338. The current lowest deal is $157 with Frontier Airlines for travel from Jan 6-Jan 12.

now $157

Low $170

High $338

The cheapest time to fly from St. Louis to Phoenix

The cheapest month to fly from St. Louis to Phoenix is December, with a median price of $254. The most expensive month is February, with a median price of $681. Prices are generally lower from January to December.

December

Cheapest

Flights from $254

February

Most Expensive

Flights from $681

Jan

Feb

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from St. Louis to Phoenix

Frontier Airlines

Last-minute flights going from St. Louis to Phoenix

Sun, Nov 1

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Frontier Airlines

$351

$356

One-way

Wed, Nov 4

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Frontier Airlines

$294

$315

One-way

Thu, Nov 5

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

American Airlines

$190

$713

One-way

Tue, Nov 10

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Southern Airways

$259

$447

One-way

Tue, Nov 10

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Southern Airways

$245

$523

One-way

Thu, Nov 12

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Frontier Airlines

$254

$310

One-way

Biggest price drops on these dates for flights from St. Louis to Phoenix

2 nights

Dec 2 - Dec 4

$276 → $187

32%

3 nights

Dec 7 - Dec 10

$272 → $185

32%

2 nights

Dec 9 - Dec 11

$274 → $187

32%

4 nights

Dec 7 - Dec 11

$271 → $185

32%

Popular Airports to fly from St. Louis to Phoenix

St. Louis - Phoenix route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for St. Louis to Phoenix are above the typical level, with a median of $573.

📅 Best time to fly

Fly in December for the best prices.

Historically, December offers the lowest median prices at $263 for flights from St. Louis to Phoenix.

⏱️ Flight duration

Direct flights take 3h 25m.

The median flight duration for direct flights from St. Louis to Phoenix is 3h 25m.

✈️ Airlines & availability

Connecting flights are common.

About 90% of recent flights from St. Louis to Phoenix have at least one stopover.

🏆 Airline highlight

American Airlines offers direct deals.

American Airlines has offered direct deals on this route recently.

🎯 Booking tip

Deals appear regularly.

Deals for flights from St. Louis to Phoenix appear regularly, typically within a 30-day window.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a convenient departure point for flights to Phoenix.

📍 ~20 km from St. Louis city center (reachable by car).

💸 Flights from ~$165

Phoenix main airports to arrive at

Phoenix Sky Harbor International (PHX)

Cheapest

Phoenix Sky Harbor International is a convenient arrival airport for reaching Phoenix and surrounding areas.

📍 ~6 km from Phoenix city center (reachable by car, bus, or rail).

💸 Flights from ~$159

Airports nearby Phoenix used as alternative

Tucson International (TUS)

Tucson International is a useful alternative, offering a wide range of domestic and some international connections.

📍 ~180 km from Phoenix (reachable by car)

💸 Flights from ~$303

Business & First Class Flight Deals to Phoenix

Discover luxury on the budget with premium cabin class on flights from St. Louis to Phoenix.

Elite

Best Elite deals to Phoenix

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From STL

Elite

Dec 11

Phoenix, United States

71% AI deal score

$1,933

$1,586

Save $347

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

71% AI deal score

$2,059

$1,586

Save $473

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

70% AI deal score

$1,794

$1,523

Save $271

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

70% AI deal score

$1,827

$1,585

Save $242

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

70% AI deal score

$1,814

$1,586

Save $228

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 01

Phoenix, United States

70% AI deal score

$1,941

$1,680

Save $261

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

69% AI deal score

$1,794

$1,586

Save $208

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

69% AI deal score

$1,825

$1,652

Save $173

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 11

Phoenix, United States

69% AI deal score

$1,849

$1,652

Save $197

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 19

Phoenix, United States

69% AI deal score

$1,856

$1,653

Save $203

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 01

Phoenix, United States

69% AI deal score

$1,810

$1,680

Save $130

Alaska Airlines, Inc.

Business Class

From STL

Elite

Dec 01

Phoenix, United States

69% AI deal score

$1,838

$1,680

Save $158

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to Phoenix

Historically, booking flights from St. Louis to Phoenix 60+ days in advance typically yields the lowest prices. Across the trailing quarter, the average price for flights booked within this window was $589. In contrast, booking within 0-6 days of departure saw average prices rise to $840. For those booking 28-59 days out, the average price was around $600, indicating that earlier booking generally offers better value.

Based on historical data from the trailing 90 days, a good price for a flight from St. Louis to Phoenix is considered to be $396 or less. The median price for this route was $573 during the same period. Prices around $803 represent the higher end of the typical range for this route.

Historically, December has offered the cheapest flights from St. Louis to Phoenix, with a median price of $263. January also tends to be a more affordable month, with a median price of $365. The annual median price for this route is $573, indicating that these months provide significant savings compared to the yearly average.

Related routes

More routes from St. Louis

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Flights to Phoenix from other cities

Flights from Albuquerque to Phoenix Flights from Calgary to Phoenix Flights from Edmonton to Phoenix Flights from Kelowna to Phoenix Flights from Tampa to Phoenix Flights from Toronto to Phoenix Flights from Tucson to Phoenix Flights from Tulsa to Phoenix Flights from Vancouver to Phoenix Flights from Vienna to Phoenix Flights from Washington, D.C. to Phoenix Flights from Zürich to Phoenix

St. Louis to Phoenix: Overview

Insights for flights from St. Louis to Phoenix

How much is a round trip from St. Louis to Phoenix

Regular price: $170 - $338

Prices for flights from St. Louis to Phoenix are currently below the regular range.

The regular price range for this route is $170 to $338. The current lowest deal is $157 with Frontier Airlines for travel from Jan 6-Jan 12.

now $157

Low $170

High $338

The cheapest time to fly from St. Louis to Phoenix

December

Cheapest

Flights from $254

February

Most Expensive

Flights from $681

Jan

Feb

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from St. Louis to Phoenix

Frontier Airlines

Last-minute flights going from St. Louis to Phoenix

Sun, Nov 1

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Frontier Airlines

$351

$356

One-way

Wed, Nov 4

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Frontier Airlines

$294

$315

One-way

Thu, Nov 5

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

American Airlines

$190

$713

One-way

Tue, Nov 10

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Southern Airways

$259

$447

One-way

Tue, Nov 10

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Southern Airways

$245

$523

One-way

Thu, Nov 12

⌛ Last-Minute

STL - Phoenix

St. Louis (STL) - Phoenix (PHX)

Frontier Airlines

$254

$310

One-way

Biggest price drops on these dates for flights from St. Louis to Phoenix

2 nights

Dec 2 - Dec 4

$276 → $187

32%

3 nights

Dec 7 - Dec 10

$272 → $185

32%

2 nights

Dec 9 - Dec 11

$274 → $187

32%

4 nights

Dec 7 - Dec 11

$271 → $185

32%

Popular Airports to fly from St. Louis to Phoenix

St. Louis - Phoenix route insights

💸 Price insights

Recent fares are above the typical level.

Recent fares for St. Louis to Phoenix are above the typical level, with a median of $573.

📅 Best time to fly

Fly in December for the best prices.

Historically, December offers the lowest median prices at $263 for flights from St. Louis to Phoenix.

⏱️ Flight duration

Direct flights take 3h 25m.

The median flight duration for direct flights from St. Louis to Phoenix is 3h 25m.

✈️ Airlines & availability

Connecting flights are common.

About 90% of recent flights from St. Louis to Phoenix have at least one stopover.

🏆 Airline highlight

American Airlines offers direct deals.

American Airlines has offered direct deals on this route recently.

🎯 Booking tip

Deals appear regularly.

Deals for flights from St. Louis to Phoenix appear regularly, typically within a 30-day window.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International Airport is a convenient departure point for flights to Phoenix.

📍 ~20 km from St. Louis city center (reachable by car).

💸 Flights from ~$165

Phoenix main airports to arrive at

Phoenix Sky Harbor International (PHX)

Cheapest

Phoenix Sky Harbor International is a convenient arrival airport for reaching Phoenix and surrounding areas.

📍 ~6 km from Phoenix city center (reachable by car, bus, or rail).

💸 Flights from ~$159

Airports nearby Phoenix used as alternative

Tucson International (TUS)

Tucson International is a useful alternative, offering a wide range of domestic and some international connections.

Phoenix, United States

69% AI deal score

$1,838

$1,680

Save $158

Alaska Airlines, Inc.

Business Class

Frequently Asked Questions About Flights to Phoenix

Cheap Flights from St. Louis to Phoenix

Today’s best flight deals from St. Louis to Phoenix

St. Louis to Phoenix: Overview

Insights for flights from St. Louis to Phoenix

How much is a round trip from St. Louis to Phoenix

The cheapest time to fly from St. Louis to Phoenix

Direct flights from St. Louis to Phoenix

Last-minute flights going from St. Louis to Phoenix

Biggest price drops on these dates for flights from St. Louis to Phoenix

Popular Airports to fly from St. Louis to Phoenix

St. Louis - Phoenix route insights

Recent fares are above the typical level.

Fly in December for the best prices.

Direct flights take 3h 25m.

Connecting flights are common.

American Airlines offers direct deals.

Deals appear regularly.

St. Louis main airports to depart from

Phoenix main airports to arrive at

Airports nearby Phoenix used as alternative

Business & First Class Flight Deals to Phoenix

Best Elite deals to Phoenix

Dec 11

Dec 11

Dec 11

Dec 11

Dec 11

Dec 01

Dec 11

Dec 11

Dec 11

Dec 19

Dec 01

Dec 01

Frequently Asked Questions About Flights to Phoenix

How early should I book St. Louis to Phoenix flights to get the cheapest price?

What is a good price for a flight from St. Louis to Phoenix?

Which months have the cheapest flights from St. Louis to Phoenix?

How many flights from St. Louis to Phoenix are non-stop?

What's the flight time from St. Louis to Phoenix?

Are there frequently good prices on flights from St. Louis to Phoenix?

Related routes

More routes from St. Louis

Flights to Phoenix from other cities

St. Louis to Phoenix: Overview

Insights for flights from St. Louis to Phoenix

How much is a round trip from St. Louis to Phoenix

The cheapest time to fly from St. Louis to Phoenix

Direct flights from St. Louis to Phoenix

Last-minute flights going from St. Louis to Phoenix

Biggest price drops on these dates for flights from St. Louis to Phoenix

Popular Airports to fly from St. Louis to Phoenix

St. Louis - Phoenix route insights

Recent fares are above the typical level.

Fly in December for the best prices.

Direct flights take 3h 25m.

Connecting flights are common.

American Airlines offers direct deals.

Deals appear regularly.

St. Louis main airports to depart from

Phoenix main airports to arrive at

Airports nearby Phoenix used as alternative

Business & First Class Flight Deals to Phoenix

Best Elite deals to Phoenix

Dec 11

Dec 11

Dec 11

Dec 11

Dec 11

Dec 01

Dec 11

Dec 11

Dec 11

Dec 19

Dec 01

Dec 01

Frequently Asked Questions About Flights to Phoenix

How early should I book St. Louis to Phoenix flights to get the cheapest price?

What is a good price for a flight from St. Louis to Phoenix?

Which months have the cheapest flights from St. Louis to Phoenix?