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$55+ Cheap flights from St. Louis (STL) to Arizona

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jan 10 — Jan 171
Fri 1/10
Fri 1/17
1 adult, Economy
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Cheap flight deals from St. Louis to Arizona

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Arizona (USAZ). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 5, 2025.

Round-trip from

$139
(Frontier)

One-way from

$55
(Frontier)
From Lambert-St Louis to Arizona
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One-way flight from Lambert-St Louis to Arizona
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Find flight deals from St. Louis to Arizona

Cheapest flights from St. Louis to Arizona
Explore the most affordable flight options available from St. Louis to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 5, 2025.

This Frontier deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/268:31 pmSTL - LAS
Nonstop3h 49mFrontier
Thu 1/3010:29 pmLAS - STL
1 stop8h 47mFrontier
Deal found 1/3$139
This Kiwi.com deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/157:27 pmSTL - LAS
1 stop14h 40mMultiple Airlines
Thu 4/249:59 pmLAS - STL
1 stop9h 13mMultiple Airlines
Deal found 1/3$191
This Alaska Airlines deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/92:49 pmSTL - LAS
1 stop9h 43mAlaska Airlines
Wed 2/129:30 amLAS - STL
1 stop12h 29mAlaska Airlines
Deal found 1/4$218
This Delta deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/26:00 amSTL - LAS
1 stop6h 53mDelta
Tue 2/412:55 amLAS - STL
1 stop7h 59mDelta
Deal found 1/3$219
This American Airlines deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/266:00 pmSTL - LAS
1 stop7h 02mAmerican Airlines
Wed 1/298:00 amLAS - STL
1 stop6h 23mAmerican Airlines
Deal found 1/3$220
This Southwest deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/51:25 pmSTL - LAS
Nonstop3h 50mSouthwest
Tue 2/117:05 amLAS - STL
Nonstop3h 10mSouthwest
Deal found 1/4$228
This Frontier deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1411:08 pmSTL - PHX
1 stop9h 39mFrontier
Mon 2/173:14 pmPHX - STL
1 stop5h 54mFrontier
Deal found 1/4$276
This Orbitz deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/57:00 amSTL - PHX
2 stops17h 59mMultiple Airlines
Tue 3/119:15 pmPHX - STL
1 stop10h 01mMultiple Airlines
Deal found 1/4$283
This American Airlines deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/222:27 pmSTL - PHX
Nonstop3h 25mAmerican Airlines
Sun 1/2611:58 pmPHX - STL
1 stop8h 05mAmerican Airlines
Deal found 1/3$308
This Mytrip deal was found by Cheapflights users on 1/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/64:28 pmSTL - PHX
3 stops27h 45mSpirit Airlines
Mon 2/108:18 pmPHX - STL
2 stops17h 25mSpirit Airlines
Deal found 1/3$318
This Delta deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/184:40 pmSTL - TUS
1 stop7h 23mDelta
Wed 2/262:45 pmTUS - STL
1 stop6h 32mDelta
Deal found 1/4$319
This Southwest deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/219:50 pmSTL - PHX
Nonstop3h 35mSouthwest
Tue 2/256:55 amPHX - STL
Nonstop2h 50mSouthwest
Deal found 1/4$319

Find flights from St. Louis to Arizona within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated January 5, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 1/26

8:31 pm-10:20 pm

Nonstop3h 49m

Las Vegas Harry Reid Intl

Thu 1/30

10:29 pm-9:16 am

1 stop8h 47m

$139

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 4/15

7:27 pm-8:07 am

1 stop14h 40m

Las Vegas Harry Reid Intl

Thu 4/24

9:59 pm-9:12 am

1 stop9h 13m

$191

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 2/9

2:49 pm-10:32 pm

1 stop9h 43m

Las Vegas Harry Reid Intl

Wed 2/12

9:30 am-11:59 pm

1 stop12h 29m

$218

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 2/2

6:00 am-10:53 am

1 stop6h 53m

Las Vegas Harry Reid Intl

Thu 2/6

12:55 am-10:54 am

1 stop7h 59m

$219

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sun 1/26

6:00 pm-11:02 pm

1 stop7h 02m

Las Vegas Harry Reid Intl

Wed 1/29

8:00 am-4:23 pm

1 stop6h 23m

$220

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Wed 2/5

1:25 pm-3:15 pm

Nonstop3h 50m

Las Vegas Harry Reid Intl

Tue 2/11

7:05 am-12:15 pm

Nonstop3h 10m

$228

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 2/14

11:08 pm-7:47 am

1 stop9h 39m

Phoenix Sky Harbor Intl

Mon 2/17

3:14 pm-10:08 pm

1 stop5h 54m

$276

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 2/6

12:15 pm-11:01 am

3 stops23h 46m

Phoenix Sky Harbor Intl

Mon 2/10

11:56 am-2:43 pm

2 stops25h 47m

$296

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 1/22

2:27 pm-4:52 pm

Nonstop3h 25m

Phoenix Sky Harbor Intl

Sun 1/26

7:55 pm-11:59 pm

Nonstop3h 04m

$298

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Thu 2/6

7:00 am-2:48 pm

1 stop9h 48m

Las Vegas Harry Reid Intl

Sat 2/8

12:59 am-9:55 am

1 stop6h 56m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/3

Showing 1-10 of 41 results
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Best time to book a flight from St. Louis to Arizona

Have a flexible travel schedule? Discover the best time to fly to Arizona from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Arizona

Get recent, data-driven insights about flights from St. Louis to Arizona including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Arizona?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Arizona (average of $258). Flying from St. Louis to Arizona in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to AZ?

Find hourly flight availability from St. Louis to Arizona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 5, 2025.

When flying from St. Louis to Arizona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Arizona by month

Plan your trip to Arizona by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Arizona ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Arizona when rainfall is around 0.0 in.

Temperature in Arizona by month

Plan your trip to Arizona by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Arizona, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Arizona

Get insights into the airlines that provide service to Arizona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Arizona. Reviews last updated January 5, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and United Airlines from St. Louis to Arizona by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,679 reviews

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,679 reviews
Southwest
8.1
Very good
4,679 reviews

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,611 reviews
Southwest
8.1
Very good
4,679 reviews

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,526 reviews
Southwest
8.1
Very good
4,679 reviews

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,945 reviews
Southwest
8.1
Very good
4,679 reviews

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,679 reviews

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Comfort

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Arizona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Arizona?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Arizona. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • What are the cheapest airlines to fly from St. Louis to Arizona one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $55. Users have also found prices from $110 and $129 on Delta and Southwest, respectively.

  • What are the most popular routes from St. Louis to Arizona?

    While some choose either Lambert-St Louis - Phoenix Sky Harbor Intl or Lambert-St Louis - Tucson, Lambert-St Louis - Las Vegas Harry Reid Intl is the most popular route from St. Louis to Arizona.

  • What are the most reliable airlines from St. Louis to Arizona?

    Consider Southwest (85%), SkyWest Airlines (83%) or Alaska Airlines (82%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Arizona.

  • What are the cheapest flights from St. Louis to Arizona?

    The cheapest flight price from St. Louis to Arizona is $123. On average you can expect to pay $410. The most popular route, (Lambert-St Louis - Las Vegas Harry Reid Intl), can usually be booked for $95.

  • Can I find deals for flights from St. Louis to Arizona that include hotel bookings?

    Yes. In addition to deals on St. Louis to Arizona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Arizona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Arizona.

  • Can I find deals for business class flights from St. Louis to Arizona?

    Yes. Cheapflights offers flight deals from St. Louis to Arizona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Arizona?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Arizona (average of $258). Flying from St. Louis to Arizona in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for St. Louis to Arizona

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from St. Louis to Arizona

Discover the top 5 airlines that operate flights from St. Louis to Arizona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$149FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$145Average$499FlexibilityNo cancel feeOn-time71%
DeltaCheapest$215Average$291FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$226Average$442FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$271Average$408FlexibilityNo cancel feeOn-time63%
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