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Cheap flights from Phoenix to St. Louis from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix to St. Louis departing on 7/31. 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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Tue 7/30

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

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 Phoenix to St. Louis by changing tabs
American Airlines
Sep 6
PHX6:57 pmPhoenix Sky Harbor Intl
2h 56m
STL11:53 pmLambert-St Louis
Sep 9
STL7:20 amLambert-St Louis
3h 25m
PHX8:45 amPhoenix Sky Harbor Intl
Frontier
Jul 31
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Aug 7
STL8:02 pmLambert-St Louis
6h 22m
1 stop
PHX12:24 amPhoenix Sky Harbor Intl
United Airlines
Nov 9
PHX6:30 amPhoenix Sky Harbor Intl
9h 26m
1 stop
STL4:56 pmLambert-St Louis
Nov 13
STL5:40 pmLambert-St Louis
6h 07m
1 stop
PHX10:47 pmPhoenix Sky Harbor Intl
Multiple Airlines
Jul 31
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Aug 7
STL4:02 pmLambert-St Louis
6h 24m
1 stop
PHX8:26 pmPhoenix Sky Harbor Intl
Delta
Jul 30
PHX12:40 amPhoenix Sky Harbor Intl
7h 58m
1 stop
STL10:38 amLambert-St Louis
Aug 7
STL2:35 pmLambert-St Louis
5h 16m
1 stop
PHX5:51 pmPhoenix Sky Harbor Intl
Spirit Airlines
Aug 12
PHX10:15 pmPhoenix Sky Harbor Intl
31h 07m
3 stops
STL7:22 amLambert-St Louis
Aug 15
STL5:18 pmLambert-St Louis
16h 42m
1 stop
PHX8:00 amPhoenix Sky Harbor Intl

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

If you're looking for one-way flights from Phoenix to St. Louis, view some of our deals below provided by American Airlines, Delta and Frontier
Frontier
Jul 31
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
American Airlines
Aug 28
PHX3:45 pmPhoenix Sky Harbor Intl
3h 01m
STL8:46 pmLambert-St Louis
Delta
Oct 15
PHX5:20 pmPhoenix Sky Harbor Intl
5h 10m
1 stop
STL12:30 amLambert-St Louis

Find the cheapest direct flights from Phoenix to St. Louis

American Airlines
Sep 6
PHX6:57 pmPhoenix Sky Harbor Intl
2h 56m
STL11:53 pmLambert-St Louis
Sep 9
STL7:20 amLambert-St Louis
3h 25m
PHX8:45 amPhoenix Sky Harbor Intl
American Airlines
Jul 31
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Aug 5
STL6:09 pmLambert-St Louis
3h 11m
PHX7:20 pmPhoenix Sky Harbor Intl
American Airlines
Jul 29
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Aug 1
STL6:09 pmLambert-St Louis
3h 11m
PHX7:20 pmPhoenix Sky Harbor Intl
American Airlines
Aug 16
PHX3:45 pmPhoenix Sky Harbor Intl
3h 01m
STL8:46 pmLambert-St Louis
Aug 19
STL7:39 amLambert-St Louis
3h 14m
PHX8:53 amPhoenix Sky Harbor Intl
American Airlines
Jul 31
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Aug 8
STL7:39 amLambert-St Louis
3h 14m
PHX8:53 amPhoenix Sky Harbor Intl
American Airlines
Jul 31
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Aug 6
STL7:00 amLambert-St Louis
3h 16m
PHX8:16 amPhoenix Sky Harbor Intl

Search last-minute flights to St. Louis from Phoenix

Find and compare round-trip flight prices for your last-minute flight from Phoenix to St. Louis
Frontier
Jul 24
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Jul 31
STL10:59 pmLambert-St Louis
3h 09m
PHX12:08 amPhoenix Sky Harbor Intl
American Airlines
Jul 26
PHX6:55 pmPhoenix Sky Harbor Intl
3h 00m
STL11:55 pmLambert-St Louis
Aug 3
STL6:11 pmLambert-St Louis
3h 09m
PHX7:20 pmPhoenix Sky Harbor Intl
United Airlines
Jul 26
PHX12:05 pmPhoenix Sky Harbor Intl
8h 12m
1 stop
STL10:17 pmLambert-St Louis
Jul 27
STL6:30 amLambert-St Louis
7h 51m
1 stop
PHX12:21 pmPhoenix Sky Harbor Intl
Delta
Jul 26
PHX10:05 amPhoenix Sky Harbor Intl
5h 29m
1 stop
STL5:34 pmLambert-St Louis
Jul 27
STL3:28 pmLambert-St Louis
6h 37m
1 stop
PHX8:05 pmPhoenix Sky Harbor Intl
Frontier
Jul 24
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Jul 31
STL10:32 pmLambert-St Louis
12h 09m
1 stop
PHX8:41 amPhoenix Sky Harbor Intl
Multiple Airlines
Jul 24
PHX9:16 pmPhoenix Sky Harbor Intl
17h 29m
3 stops
STL4:45 pmLambert-St Louis
Jul 31
STL4:02 pmLambert-St Louis
6h 24m
1 stop
PHX8:26 pmPhoenix Sky Harbor Intl

Frontier flights from Phoenix to St. Louis

Our best Frontier deals on Phoenix to St. Louis flight tickets
Frontier
Jul 24
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Jul 31
STL10:59 pmLambert-St Louis
3h 09m
PHX12:08 amPhoenix Sky Harbor Intl
Frontier
Jul 24
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Jul 31
STL10:32 pmLambert-St Louis
12h 09m
1 stop
PHX8:41 amPhoenix Sky Harbor Intl
Frontier
Jul 31
PHX5:08 pmPhoenix Sky Harbor Intl
3h 01m
STL10:09 pmLambert-St Louis
Aug 7
STL8:02 pmLambert-St Louis
6h 22m
1 stop
PHX12:24 amPhoenix Sky Harbor Intl

United Airlines flights from Phoenix to St. Louis

Our best United Airlines deals on Phoenix to St. Louis flight tickets
United Airlines
Nov 9
PHX6:30 amPhoenix Sky Harbor Intl
9h 26m
1 stop
STL4:56 pmLambert-St Louis
Nov 13
STL5:40 pmLambert-St Louis
6h 07m
1 stop
PHX10:47 pmPhoenix Sky Harbor Intl
United Airlines
Nov 16
PHX7:00 amPhoenix Sky Harbor Intl
4h 43m
1 stop
STL12:43 pmLambert-St Louis
Nov 16
STL5:40 pmLambert-St Louis
6h 07m
1 stop
PHX10:47 pmPhoenix Sky Harbor Intl
United Airlines
Nov 20
PHX6:30 amPhoenix Sky Harbor Intl
9h 26m
1 stop
STL4:56 pmLambert-St Louis
Nov 24
STL5:40 pmLambert-St Louis
6h 07m
1 stop
PHX10:47 pmPhoenix Sky Harbor Intl

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

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 Phoenix to St. Louis?

June. The cheapest time of year to fly to St. Louis from Phoenix is June. Most expensive is December

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

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday

When is the cheapest time to fly from Phoenix to St. Louis?

In the afternoon. Phoenix to St. Louis flights are approximately 43% more expensive at noon than in the afternoon

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

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

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

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

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

48 days before. The cheapest time to buy a flight from Phoenix to St. Louis is approximately 48 days to departure

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

9 flights are operational weekly from Phoenix to St. Louis as of July 2024. The most popular departure time for this route is 6:00PM, with 36% of flights per day taking off in the afternoon.

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

As of July 2024, 66 flights take off from Phoenix and land in St. Louis each week. The most common flight departure day for this route is Sunday, with 18% of weekly flights taking off on this day.

Can stopping save me money on Phoenix to St. Louis flights?

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

Cheap Phoenix to St. Louis flight deals and tips

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

Best Price Found

$54

Fastest flight time

2h 55m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Phoenix in the past 72 hours is $54. The best round-trip flight deal from Phoenix to St. Louis found on momondo in the last 72 hours is $115.
The fastest flight from Phoenix to St. Louis takes 2h 55m
Direct flights go from Phoenix to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

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

    The distance between Phoenix and Lambert-St Louis is about 1269.1 mi. Flights usually cover this in 2h 55m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phoenix to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.


Best airlines flying from Phoenix to St. Louis

Compare and see reviews for airlines that fly from Phoenix to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $78Free CancellationRating
6.2
3,855 reviews
Search Frontier flights
American AirlinesPriceFrom $138Free CancellationRating
7.3
10,000 reviews
Search American Airlines flights
Spirit AirlinesPriceFrom $140Free CancellationRating
6.3
8,416 reviews
Search Spirit Airlines flights
DeltaPriceFrom $216Free CancellationRating
8.0
9,762 reviews
Search Delta flights
United AirlinesPriceFrom $295Free CancellationRating
7.4
10,000 reviews
Search United Airlines flights

Why use momondo?

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

Finding the right flight to St. Louis from Phoenix is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to St. Louis from Phoenix with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Phoenix to St. Louis.

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

Price alerts on flights to St. Louis from Phoenix are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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From?
To?
Tue 7/23
Tue 7/30
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