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Cheap flights from St. Louis to Phoenix Sky Harbor Intl Airport from $39

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 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Sun 6/30

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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
Sep 14
STL11:41 pmLambert-St Louis
3h 18m
PHX12:59 amPhoenix Sky Harbor Intl
Sep 18
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
American Airlines
Jul 3
STL7:35 amLambert-St Louis
3h 20m
PHX8:55 amPhoenix Sky Harbor Intl
Jul 6
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Frontier
Sep 13
STL9:26 pmLambert-St Louis
3h 18m
PHX10:44 pmPhoenix Sky Harbor Intl
Sep 18
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
Multiple Airlines
Sep 13
STL9:26 pmLambert-St Louis
3h 18m
PHX10:44 pmPhoenix Sky Harbor Intl
Sep 17
PHX8:41 pmPhoenix Sky Harbor Intl
14h 23m
1 stop
STL1:04 pmLambert-St Louis
Frontier
Aug 5
STL12:41 pmLambert-St Louis
3h 09m
PHX1:50 pmPhoenix Sky Harbor Intl
Aug 14
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
Frontier
Sep 23
STL9:26 pmLambert-St Louis
3h 18m
PHX10:44 pmPhoenix Sky Harbor Intl
Sep 27
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-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 and Frontier
Frontier
Sep 23
STL9:26 pmLambert-St Louis
3h 18m
PHX10:44 pmPhoenix Sky Harbor Intl
American Airlines
Jul 1
STL6:11 pmLambert-St Louis
3h 17m
PHX7:28 pmPhoenix Sky Harbor Intl
Frontier
Jul 6
STL9:55 pmLambert-St Louis
3h 09m
PHX11:04 pmPhoenix Sky Harbor Intl

Find the cheapest direct flights from St. Louis to Phoenix

Frontier
Sep 14
STL11:41 pmLambert-St Louis
3h 18m
PHX12:59 amPhoenix Sky Harbor Intl
Sep 18
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
American Airlines
Jul 3
STL7:35 amLambert-St Louis
3h 20m
PHX8:55 amPhoenix Sky Harbor Intl
Jul 6
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Frontier
Sep 13
STL9:26 pmLambert-St Louis
3h 18m
PHX10:44 pmPhoenix Sky Harbor Intl
Sep 18
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
Frontier
Aug 5
STL12:41 pmLambert-St Louis
3h 09m
PHX1:50 pmPhoenix Sky Harbor Intl
Aug 14
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
Frontier
Sep 23
STL9:26 pmLambert-St Louis
3h 18m
PHX10:44 pmPhoenix Sky Harbor Intl
Sep 27
PHX3:35 pmPhoenix Sky Harbor Intl
3h 01m
STL8:36 pmLambert-St Louis
Frontier
Jul 3
STL10:57 pmLambert-St Louis
3h 18m
PHX12:15 amPhoenix Sky Harbor Intl
Jul 6
PHX4:01 pmPhoenix Sky Harbor Intl
3h 01m
STL9:02 pmLambert-St Louis

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
American Airlines
Jun 25
STL7:35 amLambert-St Louis
3h 20m
PHX8:55 amPhoenix Sky Harbor Intl
Jun 29
PHX6:56 pmPhoenix Sky Harbor Intl
2h 54m
STL11:50 pmLambert-St Louis
Frontier
Jun 24
STL10:00 pmLambert-St Louis
3h 17m
PHX11:17 pmPhoenix Sky Harbor Intl
Jun 29
PHX4:06 pmPhoenix Sky Harbor Intl
2h 54m
STL9:00 pmLambert-St Louis
Delta
Jun 25
STL3:23 pmLambert-St Louis
6h 44m
1 stop
PHX8:07 pmPhoenix Sky Harbor Intl
Jun 28
PHX5:37 pmPhoenix Sky Harbor Intl
5h 21m
1 stop
STL12:58 amLambert-St Louis
Multiple Airlines
Jun 25
STL3:23 pmLambert-St Louis
21h 26m
2 stops
PHX10:49 amPhoenix Sky Harbor Intl
Jun 29
PHX7:00 amPhoenix Sky Harbor Intl
26h 45m
3 stops
STL11:45 amLambert-St Louis
Frontier
Jun 25
STL3:47 pmLambert-St Louis
7h 30m
1 stop
PHX9:17 pmPhoenix Sky Harbor Intl
Jun 29
PHX4:06 pmPhoenix Sky Harbor Intl
2h 54m
STL9:00 pmLambert-St Louis
Spirit Airlines
Jun 25
STL3:23 pmLambert-St Louis
21h 26m
2 stops
PHX10:49 amPhoenix Sky Harbor Intl
Jun 29
PHX7:00 amPhoenix Sky Harbor Intl
8h 28m
1 stop
STL5:28 pmLambert-St Louis

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

Our best United Airlines deals on St. Louis to Phoenix Sky Harbor Intl Airport flight tickets
United Airlines
Jul 3
STL4:36 pmLambert-St Louis
5h 54m
1 stop
PHX8:30 pmPhoenix Sky Harbor Intl
Jul 10
PHX6:10 amPhoenix Sky Harbor Intl
8h 18m
1 stop
STL4:28 pmLambert-St Louis
United Airlines
Jul 3
STL4:36 pmLambert-St Louis
5h 54m
1 stop
PHX8:30 pmPhoenix Sky Harbor Intl
Jul 6
PHX7:00 amPhoenix Sky Harbor Intl
7h 28m
1 stop
STL4:28 pmLambert-St Louis
United Airlines
Sep 13
STL5:01 pmLambert-St Louis
6h 19m
1 stop
PHX9:20 pmPhoenix Sky Harbor Intl
Sep 17
PHX6:00 amPhoenix Sky Harbor Intl
8h 22m
2 stops
STL4:22 pmLambert-St Louis

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

Our best Delta deals on St. Louis to Phoenix Sky Harbor Intl Airport flight tickets
Delta
Jun 25
STL3:23 pmLambert-St Louis
6h 44m
1 stop
PHX8:07 pmPhoenix Sky Harbor Intl
Jun 28
PHX5:37 pmPhoenix Sky Harbor Intl
5h 21m
1 stop
STL12:58 amLambert-St Louis
Delta
Aug 5
STL6:30 pmLambert-St Louis
17h 37m
2 stops
PHX10:07 amPhoenix Sky Harbor Intl
Aug 14
PHX11:15 amPhoenix Sky Harbor Intl
11h 41m
2 stops
STL12:56 amLambert-St Louis
Delta
Jul 9
STL6:06 amLambert-St Louis
8h 46m
1 stop
PHX12:52 pmPhoenix Sky Harbor Intl
Jul 12
PHX12:43 amPhoenix Sky Harbor Intl
7h 55m
1 stop
STL10:38 amLambert-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?

May. The cheapest time of year to fly to Phoenix Sky Harbor Intl Airport from St. Louis is May. 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 Sunday

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 in the morning 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?

52 days before. The cheapest time to buy a flight from St. Louis to Phoenix Sky Harbor Intl Airport is approximately 52 days to departure

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

As of June 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 5:00PM, with 54% 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 June 2024. The most frequent departure day is Sunday, with 17% of weekly flights leaving on this day.

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

$39

Fastest flight time

3h 09m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from St. Louis in the past 72 hours is $39. The best round-trip flight deal from St. Louis to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $58.
The fastest flight from St. Louis to Phoenix Sky Harbor Intl Airport takes 3h 09m
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 09m 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.


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
6.2
3,939 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $110Free CancellationRating
6.4
8,516 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $190Free CancellationRating
7.3
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $215Free CancellationRating
8.0
10,000 reviews
Search Delta flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
10,000 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 $481, but momondo users have found United Airlines deals from St. Louis to Phoenix Sky Harbor Intl Airport from as low as $284 round-trip. United Airlines has been scored 7.4/10 in 10,000 reviews.

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

    American Airlines (7.3/10 from 10,000 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 $398, with deals from around $190 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.


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.


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