Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Arizona 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 St. Louis to Arizona departing on 2/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Arizona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:11 pm - 11:59 pm
STL
-
LAS
3h 48mnonstop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$120Frontier
Mon, Mar 2 - Fri, Mar 6
Frontier Logo
2:51 pm - 11:44 pm
STL
-
LAS
10h 53m
1 stop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$123Frontier
Sat, Feb 28 - Fri, Mar 6
Frontier Logo
8:06 pm - 10:08 pm
STL
-
LAS
4h 02mnonstop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$125Frontier
Sun, Mar 22 - Fri, Mar 27
Frontier Logo
6:41 pm - 8:31 pm
STL
-
LAS
3h 50mnonstop
Frontier Logo
11:03 pm - 10:27 pm
LAS
-
STL
21h 24m
1 stop
$127Frontier
Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:12 pm - 9:55 pm
STL
-
TUS
5h 43m
1 stop
Delta Logo
7:10 am - 5:26 pm
TUS
-
STL
8h 16m
1 stop
$307Delta
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
8:00 am - 11:37 am
STL
-
TUS
5h 37m
1 stop
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
$312American Airlines
Tue, Apr 7 - Tue, Apr 14
Southwest Logo
8:25 am - 1:35 pm
STL
-
TUS
7h 10m
1 stop
Southwest Logo
4:50 pm - 1:55 am
TUS
-
STL
7h 05m
1 stop
$315Southwest
Tue, Mar 31 - Sat, Apr 4
American Airlines Logo
5:20 am - 8:59 am
STL
-
TUS
5h 39m
1 stop
American Airlines Logo
2:15 pm - 10:59 pm
TUS
-
STL
6h 44m
2 stops
$316American Airlines
Tue, Apr 7 - Tue, Apr 14
United Airlines Logo
5:15 am - 9:01 am
STL
-
TUS
5h 46m
1 stop
United Airlines Logo
6:30 am - 4:08 pm
TUS
-
STL
7h 38m
1 stop
$323United Airlines
Sat, Mar 28 - Wed, Apr 1
United Airlines Logo
7:41 am - 4:02 pm
STL
-
TUS
9h 21m
2 stops
United Airlines Logo
4:43 pm - 11:34 pm
TUS
-
STL
4h 51m
1 stop
$324United Airlines
Wed, Mar 4 - Wed, Mar 11

Frontier flights from St. Louis to Arizona

Our best Frontier deals on St. Louis to Arizona flight tickets
Frontier
Mar 2
STL10:11 pmLambert-St Louis
3h 48m
LAS11:59 pmLas Vegas Harry Reid Intl
Mar 6
LAS6:05 amLas Vegas Harry Reid Intl
3h 14m
STL11:19 amLambert-St Louis
$120
Frontier
Feb 28
STL6:41 pmLambert-St Louis
3h 50m
LAS8:31 pmLas Vegas Harry Reid Intl
Mar 3
LAS11:03 pmLas Vegas Harry Reid Intl
21h 24m
1 stop
STL10:27 pmLambert-St Louis
$127
Frontier
Mar 2
STL10:11 pmLambert-St Louis
3h 48m
LAS11:59 pmLas Vegas Harry Reid Intl
Mar 4
LAS6:30 amLas Vegas Harry Reid Intl
7h 23m
1 stop
STL3:53 pmLambert-St Louis
$128

Southwest flights from St. Louis to Arizona

Our best Southwest deals on St. Louis to Arizona flight tickets
Southwest
Mar 31
STL8:25 amLambert-St Louis
7h 10m
1 stop
TUS1:35 pmTucson
Apr 4
TUS4:50 pmTucson
7h 05m
1 stop
STL1:55 amLambert-St Louis
$315
Southwest
Mar 10
STL4:00 pmLambert-St Louis
8h 10m
2 stops
TUS10:10 pmTucson
Mar 17
TUS6:15 amTucson
5h 20m
1 stop
STL1:35 pmLambert-St Louis
$326
Southwest
Mar 25
STL10:30 amLambert-St Louis
8h 45m
1 stop
TUS5:15 pmTucson
Mar 30
TUS4:40 pmTucson
6h 25m
1 stop
STL1:05 amLambert-St Louis
$339

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 February 11, 2026.
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

Mon 3/2

10:11 pm-11:59 pm

Nonstop3h 48m

Las Vegas Harry Reid Intl

Fri 3/6

6:05 am-11:19 am

Nonstop3h 14m

$120

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 2/28

2:51 pm-11:44 pm

1 stop10h 53m

Las Vegas Harry Reid Intl

Fri 3/6

6:05 am-11:19 am

Nonstop3h 14m

$123

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 3/22

8:06 pm-10:08 pm

Nonstop4h 02m

Las Vegas Harry Reid Intl

Fri 3/27

6:05 am-11:19 am

Nonstop3h 14m

$125

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 2/28

6:41 pm-8:31 pm

Nonstop3h 50m

Las Vegas Harry Reid Intl

Tue 3/3

11:03 pm-10:27 pm

1 stop21h 24m

$127

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 4/7

6:12 pm-9:55 pm

1 stop5h 43m

Tucson

Tue 4/14

7:10 am-5:26 pm

1 stop8h 16m

$307

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 4/7

8:00 am-11:37 am

1 stop5h 37m

Tucson

Tue 4/14

2:15 pm-10:59 pm

2 stops6h 44m

$312

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 3/31

8:25 am-1:35 pm

1 stop7h 10m

Tucson

Sat 4/4

4:50 pm-1:55 am

1 stop7h 05m

$315

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 4/7

5:20 am-8:59 am

1 stop5h 39m

Tucson

Tue 4/14

2:15 pm-10:59 pm

2 stops6h 44m

$316

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Sat 3/28

5:15 am-9:01 am

1 stop5h 46m

Tucson

Wed 4/1

6:30 am-4:08 pm

1 stop7h 38m

$323

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 3/4

7:41 am-4:02 pm

2 stops9h 21m

Tucson

Wed 3/11

4:43 pm-11:34 pm

1 stop4h 51m

$324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 November is, on average, the cheapest month to fly to Arizona from St. Louis, with most prices found around $308. If you aren’t able to travel to Arizona during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $311.

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 $368. 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 $458.

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 in the evening. Flights from St. Louis to Arizona during this time can be as low as $322. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $433 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 $353 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 $297 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 8% 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

$188

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Arizona

66 airports
The best one-way flight to Arizona from St. Louis in the past 72 hours is $188. The best round-trip flight deal from St. Louis to Arizona found on momondo in the last 72 hours is $314.
The fastest flight from St. Louis to Arizona takes 3h 10m
Direct flights go from St. Louis to Arizona every day.
There are 66 airports in Arizona. From St. Louis there are direct flights to Phoenix Sky Harbor Intl (PHX), 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 $94Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $121Free CancellationRating
6.3
8,444 reviews
Search Spirit Airlines flights
DeltaPriceFrom $141Free CancellationRating
7.9
8,181 reviews
Search Delta flights
United AirlinesPriceFrom $148Free CancellationRating
7.4
9,279 reviews
Search United Airlines flights
American AirlinesPriceFrom $209Free CancellationRating
7.2
11,271 reviews
Search American Airlines flights
SouthwestPriceFrom $218Free CancellationRating
8.0
4,280 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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 3/13
Fri 3/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Arizona

Popular cities in Arizona

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $52
Flights to Los Angelesfrom $46
Flights to Miamifrom $43
Flights to Chicagofrom $55
Flights to Orlandofrom $52
Flights to San Franciscofrom $58
Flights to Las Vegasfrom $46
Flights to Washington, D.C.from $25
Flights to Bostonfrom $65
Flights to Atlantafrom $49
Flights to Dallasfrom $54
Flights to Seattlefrom $66