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Cheap flights from St. Louis to Arizona from $67

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 Arizona departing on 10/2. 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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Find the cheapest flights from St. Louis to Arizona

Cheap round-trip flights

Frontier Logo
7:52 pm - 11:32 pmSTL-LAS
5h 40m1 stop
Frontier Logo
8:09 am - 1:34 pmLAS-STL
3h 25mnonstop
$142Frontier
Find Deal
Wed, Oct 22 - Thu, Oct 23
Frontier Logo
9:25 pm - 11:03 pmSTL-LAS
3h 38mnonstop
Frontier Logo
10:09 am - 3:35 pmLAS-STL
3h 26mnonstop
$153Frontier
Find Deal
Mon, Oct 20 - Sat, Oct 25
American Airlines Logo
2:29 pm - 5:05 pmSTL-PHX
3h 36mnonstop
American Airlines Logo
7:54 pm - 11:50 pmPHX-STL
2h 56mnonstop
$161American Airlines
Find Deal
Wed, Nov 5 - Sat, Nov 8
American Airlines Logo
7:53 am - 9:08 amSTL-PHX
3h 15mnonstop
American Airlines Logo
12:59 pm - 6:00 pmPHX-STL
3h 01mnonstop
$176American Airlines
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
8:15 am - 11:55 amSTL-PHX
5h 40m1 stop
Southwest Logo
7:35 pm - 12:30 amPHX-STL
2h 55mnonstop
$221Southwest
Find Deal
Tue, Sep 30 - Tue, Oct 7
Southwest Logo
2:25 pm - 7:00 pmSTL-PHX
6h 35m2 stops
Southwest Logo
7:35 pm - 12:30 amPHX-STL
2h 55mnonstop
$226Southwest
Find Deal
Tue, Sep 30 - Tue, Oct 7
Delta Logo
2:29 pm - 6:09 pmSTL-PHX
5h 40m1 stop
Delta Logo
9:50 am - 6:40 pmPHX-STL
6h 50m1 stop
$237Delta
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
6:00 am - 10:41 amSTL-PHX
6h 41m1 stop
Delta Logo
7:05 am - 4:14 pmPHX-STL
7h 09m1 stop
$244Delta
Find Deal
Mon, Sep 8 - Sat, Sep 13
United Airlines Logo
6:35 am - 3:00 pmSTL-TUS
10h 25m2 stops
United Airlines Logo
4:25 pm - 11:58 pmTUS-STL
5h 33m1 stop
$352United Airlines
Find Deal
Tue, Sep 23 - Wed, Oct 1
United Airlines Logo
6:35 am - 3:00 pmSTL-TUS
10h 25m2 stops
United Airlines Logo
6:30 am - 10:35 pmTUS-STL
14h 05m2 stops
$357United Airlines
Find Deal
Tue, Sep 23 - Sat, Sep 27

Frontier flights from St. Louis to Arizona

Our best Frontier deals on St. Louis to Arizona flight tickets
Frontier
Oct 22
STL7:52 pmLambert-St Louis
5h 40m
1 stop
LAS11:32 pmLas Vegas Harry Reid Intl
Oct 23
LAS8:09 amLas Vegas Harry Reid Intl
3h 25m
STL1:34 pmLambert-St Louis
$142
Find similar
Frontier
Oct 20
STL9:25 pmLambert-St Louis
3h 38m
LAS11:03 pmLas Vegas Harry Reid Intl
Oct 25
LAS10:09 amLas Vegas Harry Reid Intl
3h 26m
STL3:35 pmLambert-St Louis
$153
Find similar
Frontier
Sep 22
STL9:29 pmLambert-St Louis
3h 36m
LAS11:05 pmLas Vegas Harry Reid Intl
Sep 26
LAS8:34 amLas Vegas Harry Reid Intl
3h 19m
STL1:53 pmLambert-St Louis
$156
Find similar

Spirit Airlines flights from St. Louis to Arizona

Our best Spirit Airlines deals on St. Louis to Arizona flight tickets
Spirit Airlines
Aug 18
STL2:30 pmLambert-St Louis
9h 08m
1 stop
LAS9:38 pmLas Vegas Harry Reid Intl
Aug 21
LAS10:43 pmLas Vegas Harry Reid Intl
12h 49m
1 stop
STL1:32 pmLambert-St Louis
$201
Find similar
Spirit Airlines
Aug 21
STL2:30 pmLambert-St Louis
9h 08m
1 stop
LAS9:38 pmLas Vegas Harry Reid Intl
Aug 21
LAS10:43 pmLas Vegas Harry Reid Intl
12h 49m
1 stop
STL1:32 pmLambert-St Louis
$204
Find similar
Spirit Airlines
Aug 18
STL2:30 pmLambert-St Louis
9h 08m
1 stop
LAS9:38 pmLas Vegas Harry Reid Intl
Aug 21
LAS10:43 pmLas Vegas Harry Reid Intl
12h 49m
1 stop
STL1:32 pmLambert-St Louis
$210
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Arizona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from St. Louis to Arizona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 10/22

7:52 pm-11:32 pm

1 stop5h 40m

Las Vegas Harry Reid Intl

Thu 10/23

8:09 am-1:34 pm

Nonstop3h 25m

$142

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Mon 10/20

9:25 pm-11:03 pm

Nonstop3h 38m

Las Vegas Harry Reid Intl

Sat 10/25

10:09 am-3:35 pm

Nonstop3h 26m

$153

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 11/5

2:29 pm-5:05 pm

Nonstop3h 36m

Phoenix Sky Harbor Intl

Sat 11/8

7:54 pm-11:50 pm

Nonstop2h 56m

$161

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 8/27

7:53 am-9:08 am

Nonstop3h 15m

Phoenix Sky Harbor Intl

Wed 9/3

12:59 pm-6:00 pm

Nonstop3h 01m

$176

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 9/30

8:15 am-11:55 am

1 stop5h 40m

Phoenix Sky Harbor Intl

Tue 10/7

7:35 pm-12:30 am

Nonstop2h 55m

$221

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 9/30

2:25 pm-7:00 pm

2 stops6h 35m

Phoenix Sky Harbor Intl

Tue 10/7

7:35 pm-12:30 am

Nonstop2h 55m

$226

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 10/14

2:29 pm-6:09 pm

1 stop5h 40m

Phoenix Sky Harbor Intl

Tue 10/21

9:50 am-6:40 pm

1 stop6h 50m

$237

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Mon 9/8

6:00 am-10:41 am

1 stop6h 41m

Phoenix Sky Harbor Intl

Sat 9/13

7:05 am-4:14 pm

1 stop7h 09m

$244

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 9/23

6:35 am-3:00 pm

2 stops10h 25m

Tucson

Wed 10/1

4:25 pm-11:58 pm

1 stop5h 33m

$352

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 9/23

6:35 am-3:00 pm

2 stops10h 25m

Tucson

Sat 9/27

6:30 am-10:35 pm

2 stops14h 05m

$357

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Arizona from

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

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 Arizona?

The month of August is, on average, the cheapest month to fly to Arizona from St. Louis, with most prices found around $288. If you aren’t able to travel to Arizona during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $305.

What is the cheapest day to depart on your flight to Arizona?

On average, the least expensive day to fly to Arizona from St. Louis is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $386. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Arizona is Sunday, with ticket prices averaging around $494.

What is the cheapest time of day to depart on your flight to Arizona?

Our most recent data shows that the best time of day to fly to Arizona is at noon. Flights from St. Louis to Arizona during this time can be as low as $402. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $449 on average. Flights to Arizona from St. Louis in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Arizona?

You are more likely to see cheaper flights to Arizona from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Arizona for around $379 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Arizona from St. Louis for as low as $348 on momondo.

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

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

You could potentially save up to 75% on your flight if you consider stops on a St. Louis to Arizona flight.

Cheap St. Louis to Arizona flight deals and tips

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

Best Price Found

$67

Fastest flight time

3h 15m

Direct flights

Every day

Airports in Arizona

3 airports
The best one-way flight to Arizona from St. Louis in the past 72 hours is $67. The best round-trip flight deal from St. Louis to Arizona found on momondo in the last 72 hours is $142.
The fastest flight from St. Louis to Arizona takes 3h 15m
Direct flights go from St. Louis to Arizona every day.
There are 3 airports near Arizona: Phoenix Sky Harbor Intl (PHX), Tucson (TUS), Las Vegas Harry Reid Intl (LAS)
Search flight deals

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

    Prices for flights from Lambert-St Louis Airport to Arizona refresh daily.

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

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

    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 Lambert-St Louis Airport to Arizona.

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

    The travel and health documents you'll need for your trip to Arizona 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 Arizona. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from St. Louis to Arizona

Compare and see reviews for airlines that fly from St. Louis to Arizona with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.8
3,241 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $154Free CancellationRating
6.3
8,054 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $205Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $216Free CancellationRating
8.0
7,983 reviews
Search Delta flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Arizona. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from St. Louis to Arizona 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 Arizona?

momondo provides multiple filters to help you find the best flight to Arizona from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your Arizona trip

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