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

55 flights are operational weekly from Arizona to St. Louis as of November 2025. The most popular departure day for this route is Tue, with 31% of flights per week taking off on this day.

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

The number of flights available between Arizona and St. Louis is 7 per day as of November 2025. The most frequent departure time is 9:00AM, with 55% of daily flights leaving at noon.

How long does it take to fly to St. Louis?

Flight times from Arizona to St. Louis vary, but if you’re flying out of Phoenix and flying into St. Louis (one of the most popular routes), then the duration is 2h 50m on average. Another popular route from Arizona to St. Louis is flying from Tucson to St. Louis, which will take roughly 4h 55m. Keep in mind that layovers or delays could extend your travel time.

What is the cheapest airline that flies from Arizona to Lambert-St Louis?

Frontier, Southwest, and American Airlines are the most popular carriers operating from Arizona to Lambert-St Louis

What airlines fly to St. Louis?

American Airlines, Southwest and Frontier are the top three most popular airlines that fly to St. Louis from Arizona according to our data. American Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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

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

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

There are 5 operators available for flights from Arizona to Lambert-St Louis Airport as of November 2025.

How old do you have to be to fly from Arizona to Lambert-St Louis 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 Arizona 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.

$49 Cheap Flights from Arizona to St. Louis in 2025/26

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11:28 am - 4:49 pmLAS-STL

3h 21mnonstop

5:44 pm - 7:33 pmSTL-LAS

3h 49mnonstop

$88Frontier

Find Deal

Thu, Jan 22 - Sun, Jan 25

3:50 pm - 9:09 pmLAS-STL

3h 19mnonstop

9:54 pm - 11:39 pmSTL-LAS

3h 45mnonstop

$107Frontier

Find Deal

Wed, Nov 26 - Sun, Nov 30

7:55 pm - 11:51 pmPHX-STL

2h 56mnonstop

2:37 pm - 5:06 pmSTL-PHX

3h 29mnonstop

$149American Airlines

Find Deal

Tue, Dec 2 - Tue, Dec 9

3:50 pm - 9:09 pmLAS-STL

3h 19mnonstop

10:53 am - 10:29 pmSTL-LAS

13h 36m1 stop

$168Multiple Airlines

Find Deal

Thu, Nov 20 - Thu, Nov 27

9:10 am - 6:58 pmLAS-STL

7h 48m1 stop

10:53 am - 10:29 pmSTL-LAS

13h 36m1 stop

$171Multiple Airlines

Find Deal

Thu, Nov 20 - Thu, Nov 27

2:00 pm - 5:50 pmPHX-STL

2h 50mnonstop

5:25 am - 7:55 amSTL-PHX

3h 30mnonstop

$174Southwest

Find Deal

Fri, Dec 12 - Sat, Dec 13

9:44 am - 1:51 pmPHX-STL

3h 07mnonstop

2:37 pm - 5:06 pmSTL-PHX

3h 29mnonstop

$209American Airlines

Find Deal

Thu, Dec 11 - Mon, Dec 15

6:30 pm - 1:01 amPHX-STL

5h 31m1 stop

6:30 am - 1:12 pmSTL-PHX

7h 42m1 stop

$217Delta

Find Deal

Tue, Dec 2 - Tue, Dec 9

9:50 am - 4:35 pmLAS-STL

4h 45m1 stop

10:15 am - 2:45 pmSTL-LAS

6h 30m2 stops

$218Southwest

Find Deal

Tue, Jan 20 - Thu, Jan 22

12:59 am - 9:10 amPHX-STL

7h 11m1 stop

6:00 am - 11:54 amSTL-PHX

6h 54m1 stop

$223Delta

Find Deal

Thu, Dec 11 - Sat, Dec 13

American Airlines flights from Arizona to St. Louis

Our best American Airlines deals on Arizona to St. Louis flight tickets

American Airlines

Dec 2

PHX7:55 pmPhoenix Sky Harbor Intl

2h 56m

STL11:51 pmLambert-St Louis

Dec 9

STL2:37 pmLambert-St Louis

3h 29m

PHX5:06 pmPhoenix Sky Harbor Intl

$149

Find similar

American Airlines

Dec 11

PHX9:44 amPhoenix Sky Harbor Intl

3h 07m

STL1:51 pmLambert-St Louis

Dec 15

STL2:37 pmLambert-St Louis

3h 29m

PHX5:06 pmPhoenix Sky Harbor Intl

$209

Find similar

American Airlines

Nov 18

PHX7:55 pmPhoenix Sky Harbor Intl

2h 56m

STL11:51 pmLambert-St Louis

Nov 19

STL7:00 amLambert-St Louis

3h 36m

PHX9:36 amPhoenix Sky Harbor Intl

$213

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Southwest flights from Arizona to St. Louis

Our best Southwest deals on Arizona to St. Louis flight tickets

Southwest

Dec 12

PHX2:00 pmPhoenix Sky Harbor Intl

2h 50m

STL5:50 pmLambert-St Louis

Dec 13

STL5:25 amLambert-St Louis

3h 30m

PHX7:55 amPhoenix Sky Harbor Intl

$174

Find similar

Southwest

Jan 20

LAS9:50 amLas Vegas Harry Reid Intl

4h 45m

1 stop

STL4:35 pmLambert-St Louis

Jan 22

STL10:15 amLambert-St Louis

6h 30m

2 stops

LAS2:45 pmLas Vegas Harry Reid Intl

$218

Find similar

Southwest

Nov 13

PHX6:30 amPhoenix Sky Harbor Intl

2h 50m

STL10:20 amLambert-St Louis

Nov 17

STL5:25 pmLambert-St Louis

3h 25m

PHX7:50 pmPhoenix Sky Harbor Intl

$262

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 1/22

11:28 am-4:49 pm

Nonstop3h 21m

Lambert-St Louis

Sun 1/25

5:44 pm-7:33 pm

Nonstop3h 49m

$88

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 11/26

3:50 pm-9:09 pm

Nonstop3h 19m

Lambert-St Louis

Sun 11/30

9:54 pm-11:39 pm

Nonstop3h 45m

$107

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 12/2

7:55 pm-11:51 pm

Nonstop2h 56m

Lambert-St Louis

Tue 12/9

2:37 pm-5:06 pm

Nonstop3h 29m

$149

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 11/20

3:50 pm-9:09 pm

Nonstop3h 19m

Lambert-St Louis

Thu 11/27

10:53 am-10:29 pm

1 stop13h 36m

$168

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 11/20

9:10 am-6:58 pm

1 stop7h 48m

Lambert-St Louis

Thu 11/27

10:53 am-10:29 pm

1 stop13h 36m

$171

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Fri 12/12

2:00 pm-5:50 pm

Nonstop2h 50m

Lambert-St Louis

Sat 12/13

5:25 am-7:55 am

Nonstop3h 30m

$174

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 12/11

9:44 am-1:51 pm

Nonstop3h 07m

Lambert-St Louis

Mon 12/15

2:37 pm-5:06 pm

Nonstop3h 29m

$209

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 12/2

6:30 pm-1:01 am

1 stop5h 31m

Lambert-St Louis

Tue 12/9

6:30 am-1:12 pm

1 stop7h 42m

$217

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 1/20

9:50 am-4:35 pm

1 stop4h 45m

Lambert-St Louis

Thu 1/22

10:15 am-2:45 pm

2 stops6h 30m

$218

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 12/11

12:59 am-9:10 am

1 stop7h 11m

Lambert-St Louis

Sat 12/13

6:00 am-11:54 am

1 stop6h 54m

$223

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How to get the cheapest flight ticket from Arizona 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

Prices

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Other information

What is the cheapest month to fly to St. Louis?

In general, November is the cheapest month to fly from Arizona to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $337. The month of October is another great option to travel to St. Louis, with average flight prices from Arizona averaging around $338.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $373. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $450. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Arizona in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $397 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $413 per ticket.

What is the cheapest Arizona to Lambert-St Louis flight route?

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

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Arizona when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Arizona for as low as $342 on momondo.

What cabin class options are available on Arizona to Lambert-St Louis flights?

There are 3 cabin classes available to choose from on Arizona to Lambert-St Louis 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 Arizona to St. Louis flights?

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

Cheap Arizona to St. Louis flight deals and tips

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

Best Price Found	$143
Fastest flight time	2h 45m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Arizona in the past 72 hours is $143. The best round-trip flight deal from Arizona to St. Louis found on momondo in the last 72 hours is $229.

The fastest flight from Arizona to St. Louis takes 2h 45m

Direct flights go from Arizona to St. Louis every day.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Arizona to Lambert-St Louis Airport?
Prices for flights from Arizona to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Arizona to Lambert-St Louis Airport?
There are 5 operators available for flights from Arizona to Lambert-St Louis Airport as of November 2025.
How old do you have to be to fly from Arizona to Lambert-St Louis 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 Arizona 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.
What is the most popular plane model from Arizona to St. Louis?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Arizona to St. Louis is Boeing 737 MAX 8 (24.86% of total bookings). The next most popular plane models are Boeing 737-800 (17.66%), Boeing 737-800 Passenger/BBJ2 (winglets) (15.64%), and Boeing 737-700 Passenger/BBJ1 (winglets) (12.82%).

Best airlines flying from Arizona to St. Louis

Compare and see reviews for airlines that fly from Arizona to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $113	Free Cancellation	Rating 5.8 3,117 reviews	Search Frontier flights
Delta	PriceFrom $134	Free Cancellation	Rating 7.9 8,003 reviews	Search Delta flights
United Airlines	PriceFrom $198	Free Cancellation	Rating 7.4 9,002 reviews	Search United Airlines flights
American Airlines	PriceFrom $242	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
Southwest	PriceFrom $266	Free Cancellation	Rating 8.0 4,239 reviews	Search Southwest flights

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Hermann

Fairview Heights

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Maryland Heights

O'Fallon

Wentzville

Fenton

Collinsville

St. Peters

Alton

Farmington

Festus

Glencoe

Edwardsville

Clayton

Eureka

Litchfield

Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from Arizona 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 Arizona to St. Louis with flexible booking policies on momondo?

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

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

Once you have performed a search for Arizona to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Arizona to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.

An easier way to manage your St. Louis 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.

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Cheap flights from Arizona to St. Louis from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Arizona to St. Louis departing on 11/28. 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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American Airlines flights from Arizona to St. Louis

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How to get the cheapest flight ticket from Arizona 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 to St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

What is the cheapest Arizona to Lambert-St Louis flight route?

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

How far in advance should I book a flight to St. Louis?

What cabin class options are available on Arizona to Lambert-St Louis flights?

There are 3 cabin classes available to choose from on Arizona to Lambert-St Louis 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 Arizona to St. Louis flights?

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

What is the cheapest airline that flies from Arizona to Lambert-St Louis?

Frontier, Southwest, and American Airlines are the most popular carriers operating from Arizona to Lambert-St Louis

What airlines fly to St. Louis?

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

The number of flights available between Arizona and St. Louis is 7 per day as of November 2025. The most frequent departure time is 9:00AM, with 55% of daily flights leaving at noon.

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

55 flights are operational weekly from Arizona to St. Louis as of November 2025. The most popular departure day for this route is Tue, with 31% of flights per week taking off on this day.

How long does it take to fly to St. Louis?

Cheap Arizona to St. Louis flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

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

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

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

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

What is the most popular plane model from Arizona to St. Louis?

Best airlines flying from Arizona to St. Louis

Compare and see reviews for airlines that fly from Arizona to St. Louis with momondo

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis 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.

Find better results for your trip to the United States

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