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Cheap flights from St. Louis to Phoenix 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 departing on 5/1. 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
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Sun 4/28
Sun 5/5

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Easily compare round-trip flights from St. Louis to Phoenix

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 by changing tabs
Frontier
May 8
STL9:39 pmLambert-St Louis
3h 28m
PHX11:07 pmPhoenix Sky Harbor Intl
May 11
PHX6:45 amPhoenix Sky Harbor Intl
2h 54m
STL11:39 amLambert-St Louis
American Airlines
May 14
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 18
PHX6:56 pmPhoenix Sky Harbor Intl
3h 00m
STL11:56 pmLambert-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
Multiple Airlines
May 29
STL11:36 amLambert-St Louis
24h 44m
1 stop
PHX10:20 amPhoenix Sky Harbor Intl
May 31
PHX4:32 pmPhoenix Sky Harbor Intl
2h 59m
STL9:31 pmLambert-St Louis
Frontier
May 11
STL12:39 pmLambert-St Louis
3h 28m
PHX2:07 pmPhoenix Sky Harbor Intl
May 16
PHX11:25 amPhoenix Sky Harbor Intl
8h 41m
1 stop
STL10:06 pmLambert-St Louis
Frontier
May 8
STL9:39 pmLambert-St Louis
3h 28m
PHX11:07 pmPhoenix Sky Harbor Intl
May 10
PHX4:33 pmPhoenix Sky Harbor Intl
2h 54m
STL9:27 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Phoenix

If you're looking for one-way flights from St. Louis to Phoenix, view some of our deals below provided by American Airlines, Frontier and Spirit Airlines
Frontier
May 1
STL9:39 pmLambert-St Louis
3h 28m
PHX11:07 pmPhoenix Sky Harbor Intl
American Airlines
Aug 6
STL2:35 pmLambert-St Louis
3h 17m
PHX3:52 pmPhoenix Sky Harbor Intl
Spirit Airlines
Apr 29
STL5:02 pmLambert-St Louis
19h 33m
1 stop
PHX10:35 amPhoenix Sky Harbor Intl

Search last-minute flights to Phoenix from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Phoenix
Frontier
May 1
STL9:39 pmLambert-St Louis
3h 28m
PHX11:07 pmPhoenix Sky Harbor Intl
May 4
PHX6:45 amPhoenix Sky Harbor Intl
2h 54m
STL11:39 amLambert-St Louis
Multiple Airlines
May 1
STL11:33 amLambert-St Louis
24h 52m
1 stop
PHX10:25 amPhoenix Sky Harbor Intl
May 4
PHX6:45 amPhoenix Sky Harbor Intl
2h 54m
STL11:39 amLambert-St Louis
American Airlines
May 2
STL5:20 amLambert-St Louis
3h 26m
PHX6:46 amPhoenix Sky Harbor Intl
May 6
PHX6:56 pmPhoenix Sky Harbor Intl
3h 00m
STL11:56 pmLambert-St Louis
Frontier
May 1
STL9:39 pmLambert-St Louis
3h 28m
PHX11:07 pmPhoenix Sky Harbor Intl
May 3
PHX4:33 pmPhoenix Sky Harbor Intl
2h 54m
STL9:27 pmLambert-St Louis
Frontier
Apr 29
STL9:53 pmLambert-St Louis
3h 28m
PHX11:21 pmPhoenix Sky Harbor Intl
May 6
PHX4:09 pmPhoenix Sky Harbor Intl
2h 54m
STL9:03 pmLambert-St Louis
Delta
May 1
STL5:30 pmLambert-St Louis
8h 29m
1 stop
PHX11:59 pmPhoenix Sky Harbor Intl
May 2
PHX1:47 pmPhoenix Sky Harbor Intl
5h 30m
1 stop
STL9:17 pmLambert-St Louis

Best airlines flying from St. Louis to Phoenix

Compare and see reviews for airlines that fly from St. Louis to Phoenix with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $78Free CancellationRating
6.3
4,142 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $110Free CancellationRating
6.4
8,761 reviews
Search Spirit Airlines flights
DeltaPriceFrom $256Free CancellationRating
8.0
11,028 reviews
Search Delta flights
American AirlinesPriceFrom $274Free CancellationRating
7.3
14,914 reviews
Search American Airlines flights
United AirlinesPriceFrom $301Free CancellationRating
7.4
11,289 reviews
Search United Airlines flights

American Airlines flights from St. Louis to Phoenix

Our best American Airlines deals on St. Louis to Phoenix flight tickets
American Airlines
May 14
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 18
PHX6:56 pmPhoenix Sky Harbor Intl
3h 00m
STL11:56 pmLambert-St Louis
American Airlines
May 14
STL8:00 amLambert-St Louis
3h 24m
PHX9:24 amPhoenix Sky Harbor Intl
May 17
PHX12:59 amPhoenix Sky Harbor Intl
6h 54m
1 stop
STL9:53 amLambert-St Louis
American Airlines
Jun 4
STL5:55 amLambert-St Louis
7h 28m
1 stop
PHX11:23 amPhoenix Sky Harbor Intl
Jun 11
PHX6:56 pmPhoenix Sky Harbor Intl
2h 54m
STL11:50 pmLambert-St Louis

Delta flights from St. Louis to Phoenix

Our best Delta deals on St. Louis to Phoenix flight tickets
Delta
Jun 4
STL10:20 amLambert-St Louis
7h 30m
1 stop
PHX3:50 pmPhoenix Sky Harbor Intl
Jun 18
PHX5:37 pmPhoenix Sky Harbor Intl
5h 03m
1 stop
STL12:40 amLambert-St Louis
Delta
May 29
STL7:55 amLambert-St Louis
6h 23m
1 stop
PHX12:18 pmPhoenix Sky Harbor Intl
May 31
PHX1:42 pmPhoenix Sky Harbor Intl
6h 10m
1 stop
STL9:52 pmLambert-St Louis
Delta
Jun 10
STL6:20 pmLambert-St Louis
7h 14m
1 stop
PHX11:34 pmPhoenix Sky Harbor Intl
Jun 14
PHX12:40 amPhoenix Sky Harbor Intl
7h 50m
1 stop
STL10:30 amLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Phoenix

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?

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

What is the cheapest day to depart St. Louis for Phoenix?

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?

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

What is the cheapest airline that flies to Phoenix from St. Louis?

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

What is the cheapest St. Louis to Phoenix flight route?

Lambert-St Louis - Phoenix Sky Harbor Intl. Fly from Lambert-St Louis to Phoenix Sky Harbor Intl for the best St. Louis - Phoenix flight prices

How far in advance should you book St. Louis to Phoenix flights?

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

How many flights depart from St. Louis to Phoenix on average per day?

The number of flights available between St. Louis and Phoenix is 10 per day as of April 2024. The most frequent departure time is 4:00AM, with 52% of daily flights leaving in the afternoon.

How many flights depart from St. Louis to Phoenix on average per week?

The number of flights available between St. Louis and Phoenix is 76 per week as of April 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 flights?

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

Cheap St. Louis to Phoenix flight deals and tips

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

Best Price Found

$39

Fastest flight time

3h 11m

Direct flights

Every day

Airports in Phoenix

1 airport
The best one-way flight to Phoenix from St. Louis in the past 72 hours is $39. The best round-trip flight deal from St. Louis to Phoenix found on momondo in the last 72 hours is $78.
The fastest flight from St. Louis to Phoenix takes 3h 11m
Direct flights go from St. Louis to Phoenix every day.
There is 1 airport near Phoenix: Phoenix Sky Harbor Intl (PHX)

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

    The distance between Lambert-St Louis and Phoenix is about 1269.1 mi. By plane, this route typically takes 3h 11m.

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

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

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

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

    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.

  • What documentation or ID do you need to fly to Phoenix?

    The travel and health documents you'll need for your trip to Phoenix 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. 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?

Flights from St. Louis to Phoenix with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between St. Louis and Phoenix by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of St. Louis to Phoenix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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Sun 5/5
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