Insights
Latest deals
Reviews
FAQs

Cheap flights from St. Louis to Phoenix Sky Harbor Intl Airport from $59

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Phoenix Sky Harbor Intl Airport departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
From?
To?
Thu 5/2
Thu 5/9

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.

Easily compare round-trip flights from St. Louis to Phoenix Sky Harbor Intl Airport

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Phoenix Sky Harbor Intl Airport by changing tabs
Frontier
May 17
STL10:21 pmLambert-St Louis
3h 17m
PHX11:38 pmPhoenix Sky Harbor Intl
May 20
PHX8:07 pmPhoenix Sky Harbor Intl
12h 06m
1 stop
STL10:13 amLambert-St Louis
Multiple Airlines
May 11
STL12:39 pmLambert-St Louis
3h 28m
PHX2:07 pmPhoenix Sky Harbor Intl
May 14
PHX11:25 amPhoenix Sky Harbor Intl
21h 21m
1 stop
STL10:46 amLambert-St Louis
Spirit Airlines
May 22
STL11:36 amLambert-St Louis
24h 44m
1 stop
PHX10:20 amPhoenix Sky Harbor Intl
May 28
PHX11:25 amPhoenix Sky Harbor Intl
21h 21m
1 stop
STL10:46 amLambert-St Louis
American Airlines
May 25
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 30
PHX6:56 pmPhoenix Sky Harbor Intl
3h 00m
STL11:56 pmLambert-St Louis
Frontier
May 6
STL9:53 pmLambert-St Louis
3h 28m
PHX11:21 pmPhoenix Sky Harbor Intl
May 13
PHX4:09 pmPhoenix Sky Harbor Intl
2h 54m
STL9:03 pmLambert-St Louis
Multiple Airlines
May 8
STL11:36 amLambert-St Louis
24h 44m
1 stop
PHX10:20 amPhoenix Sky Harbor Intl
May 11
PHX6:45 amPhoenix Sky Harbor Intl
2h 54m
STL11:39 amLambert-St Louis

Find the cheapest one-way flights from St. Louis to Phoenix Sky Harbor Intl Airport

If you're looking for one-way flights from St. Louis to Phoenix Sky Harbor Intl Airport, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Frontier
May 24
STL10:21 pmLambert-St Louis
3h 17m
PHX11:38 pmPhoenix Sky Harbor Intl
Spirit Airlines
May 8
STL11:36 amLambert-St Louis
24h 44m
1 stop
PHX10:20 amPhoenix Sky Harbor Intl
American Airlines
May 28
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl

Search last-minute flights to Phoenix Sky Harbor Intl Airport from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Phoenix Sky Harbor Intl Airport
Frontier
May 6
STL9:53 pmLambert-St Louis
3h 28m
PHX11:21 pmPhoenix Sky Harbor Intl
May 8
PHX3:45 pmPhoenix Sky Harbor Intl
2h 54m
STL8:39 pmLambert-St Louis
Multiple Airlines
May 6
STL5:02 pmLambert-St Louis
19h 33m
1 stop
PHX10:35 amPhoenix Sky Harbor Intl
May 8
PHX3:45 pmPhoenix Sky Harbor Intl
2h 54m
STL8:39 pmLambert-St Louis
Frontier
May 6
STL9:53 pmLambert-St Louis
3h 28m
PHX11:21 pmPhoenix Sky Harbor Intl
May 10
PHX4:33 pmPhoenix Sky Harbor Intl
2h 54m
STL9:27 pmLambert-St Louis
American Airlines
May 6
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 6
PHX12:59 amPhoenix Sky Harbor Intl
6h 54m
1 stop
STL9:53 amLambert-St Louis
Frontier
May 3
STL10:17 pmLambert-St Louis
3h 27m
PHX11:44 pmPhoenix Sky Harbor Intl
May 6
PHX4:09 pmPhoenix Sky Harbor Intl
2h 54m
STL9:03 pmLambert-St Louis
Multiple Airlines
May 6
STL5:02 pmLambert-St Louis
19h 33m
1 stop
PHX10:35 amPhoenix Sky Harbor Intl
May 8
PHX3:45 pmPhoenix Sky Harbor Intl
2h 54m
STL8:39 pmLambert-St Louis

Best airlines flying from St. Louis to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from St. Louis to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $78Free CancellationRating
6.3
4,132 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $110Free CancellationRating
6.4
8,746 reviews
Search Spirit Airlines flights
DeltaPriceFrom $256Free CancellationRating
8.0
10,966 reviews
Search Delta flights
American AirlinesPriceFrom $274Free CancellationRating
7.3
14,889 reviews
Search American Airlines flights
United AirlinesPriceFrom $301Free CancellationRating
7.4
11,228 reviews
Search United Airlines flights
  • United Airlines Flights From St. Louis to Phoenix Sky Harbor Intl Airport

    United Airlines operates around 5 flights from St. Louis to Phoenix Sky Harbor Intl Airport every week. The average price of these flights found in the last 72 hours has been $511, but momondo users have found United Airlines deals from St. Louis to Phoenix Sky Harbor Intl Airport from as low as $301 round-trip. United Airlines has been scored 7.4/10 in 11,228 reviews.

  • American Airlines Flights From St. Louis to Phoenix Sky Harbor Intl Airport

    American Airlines (7.3/10 from 14,889 reviews) operates around 14 flights from St. Louis to Phoenix Sky Harbor Intl Airport in any given week. The average American Airlines airfare for this route is around $418, with deals from around $274 rare but found on momondo. Referenced prices are for round-trip St. Louis to Phoenix Sky Harbor Intl Airport flight searches in the last 72 hours.


Frontier flights from St. Louis to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on St. Louis to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
May 6
STL9:53 pmLambert-St Louis
3h 28m
PHX11:21 pmPhoenix Sky Harbor Intl
May 8
PHX3:45 pmPhoenix Sky Harbor Intl
2h 54m
STL8:39 pmLambert-St Louis
Frontier
May 17
STL10:21 pmLambert-St Louis
3h 17m
PHX11:38 pmPhoenix Sky Harbor Intl
May 20
PHX8:07 pmPhoenix Sky Harbor Intl
12h 06m
1 stop
STL10:13 amLambert-St Louis
Frontier
May 6
STL9:53 pmLambert-St Louis
3h 28m
PHX11:21 pmPhoenix Sky Harbor Intl
May 10
PHX4:33 pmPhoenix Sky Harbor Intl
2h 54m
STL9:27 pmLambert-St Louis

American Airlines flights from St. Louis to Phoenix Sky Harbor Intl Airport

Our best American Airlines deals on St. Louis to Phoenix Sky Harbor Intl Airport flight tickets
American Airlines
May 25
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 30
PHX6:56 pmPhoenix Sky Harbor Intl
3h 00m
STL11:56 pmLambert-St Louis
American Airlines
Jun 4
STL7:45 amLambert-St Louis
8h 37m
1 stop
PHX2:22 pmPhoenix Sky Harbor Intl
Jun 11
PHX6:56 pmPhoenix Sky Harbor Intl
2h 54m
STL11:50 pmLambert-St Louis
American Airlines
May 14
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 20
PHX6:56 pmPhoenix Sky Harbor Intl
3h 00m
STL11:56 pmLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Phoenix Sky Harbor Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from St. Louis to Phoenix Sky Harbor Intl Airport?

August. The cheapest time of year to fly to Phoenix Sky Harbor Intl Airport from St. Louis is August. Most expensive is March

What is the cheapest day to depart St. Louis for Phoenix Sky Harbor Intl Airport?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Thursday

When is the cheapest time to fly from St. Louis to Phoenix Sky Harbor Intl Airport?

In the evening. St. Louis to Phoenix Sky Harbor Intl Airport flights are approximately 53% more expensive at noon than in the evening

What is the cheapest airline that flies to Phoenix Sky Harbor Intl Airport from St. Louis?

Spirit Airlines. American Airlines, Delta, and Frontier are the most popular carriers operating from St. Louis to Phoenix Sky Harbor Intl Airport

How far in advance should you book St. Louis to Phoenix Sky Harbor Intl Airport flights?

4 days before. The cheapest time to buy a flight from St. Louis to Phoenix Sky Harbor Intl Airport is approximately 4 days to departure

How many flights depart from St. Louis to Phoenix Sky Harbor Intl Airport on average per day?

As of April 2024, 10 flights take off from St. Louis and land in Phoenix Sky Harbor Intl Airport each day. The most common flight departure time for this route is 4:00AM, with 52% of daily flights taking off in the afternoon.

How many flights depart from St. Louis to Phoenix Sky Harbor Intl Airport on average per week?

The number of flights available between St. Louis and Phoenix Sky Harbor Intl Airport is 76 per week as of April 2024. The most frequent departure day is Sunday, with 17% of weekly flights leaving on this day.

What cabin class options are available on St. Louis to Phoenix Sky Harbor Intl Airport flights?

There are 2 cabin classes available to choose from on St. Louis to Phoenix Sky Harbor Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Phoenix Sky Harbor Intl Airport flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Phoenix Sky Harbor Intl Airport.

Cheap St. Louis to Phoenix Sky Harbor Intl Airport (STL to PHX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Phoenix Sky Harbor Intl Airport

Best Price Found

$59

Fastest flight time

3h 14m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from St. Louis in the past 72 hours is $59. The best round-trip flight deal from St. Louis to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $94.
The fastest flight from St. Louis to Phoenix Sky Harbor Intl Airport takes 3h 14m
Direct flights go from St. Louis to Phoenix Sky Harbor Intl Airport every day.

  • How far is Lambert-St Louis to Phoenix Sky Harbor Intl by plane?

    Phoenix Sky Harbor Intl is 1265.4 mi away from Lambert-St Louis. Typically, this will take 3h 14m by plane in normal conditions.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Phoenix Sky Harbor Intl Airport.

  • What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

    The travel and health documents you'll need for your trip to Phoenix Sky Harbor Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Phoenix Sky Harbor Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Phoenix?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Phoenix. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Phoenix with flexible booking policies on momondo?

momondo does allow users to show only those flights to Phoenix from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Phoenix?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Phoenix from St. Louis.

I’m not ready to book a flight from St. Louis to Phoenix right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Phoenix, momondo offers a useful price alert feature which will track prices for flights to Phoenix from St. Louis and alert you when they change.


An easier way to manage your Phoenix Sky Harbor Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Thu 5/2
Thu 5/9
Email me momondo's favorite deals

Find better results for your stay in Phoenix