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$53+ Cheap flights from Arizona to St. Louis (STL)

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — STL
Jan 12 — Jan 191
Sun 1/12
Sun 1/19
1 adult, Economy
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Cheap flight deals from Arizona to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Arizona (USAZ) to St. Louis (STL). 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 7, 2025.

Round-trip from

$107
(Cheapflightsfares)

One-way from

$53
(Trip.com)
From Arizona to Lambert-St Louis
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One-way flight from Arizona to Lambert-St Louis
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Find flight deals from Arizona to St. Louis

Cheapest flights from Arizona to St. Louis
Explore the most affordable flight options available from Arizona to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/68:18 pmLAS - STL
1 stop10h 58mFrontier
Mon 2/105:05 pmSTL - LAS
1 stop30h 45mFrontier
Deal found 1/7$107
This Frontier deal was found by Cheapflights users on 1/7. 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.
Wed 2/128:52 amPHX - STL
1 stop7h 51mFrontier
Sat 2/156:54 pmSTL - PHX
1 stop7h 05mFrontier
Deal found 1/7$110
This Travelocity deal was found by Cheapflights users on 1/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/137:31 pmLAS - STL
1 stop11h 45mMultiple Airlines
Sun 2/163:21 pmSTL - LAS
1 stop9h 48mMultiple Airlines
Deal found 1/7$223
This Delta deal was found by Cheapflights users on 1/7. 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.
Wed 2/512:55 amLAS - STL
1 stop7h 59mDelta
Mon 2/105:00 pmSTL - LAS
1 stop8h 36mDelta
Deal found 1/7$248
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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.
Thu 2/68:20 pmLAS - STL
2 stops15h 33mAlaska Airlines
Mon 2/102:49 pmSTL - LAS
1 stop8h 11mAlaska Airlines
Deal found 1/6$271
This Expedia deal was found by Cheapflights users on 1/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:00 amPHX - STL
2 stops16h 59mMultiple Airlines
Mon 3/311:08 pmSTL - PHX
1 stop9h 39mMultiple Airlines
Deal found 1/7$273
This United Airlines deal was found by Cheapflights users on 1/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/121:35 pmLAS - STL
1 stop5h 08mUnited Airlines
Sun 2/161:39 pmSTL - LAS
1 stop5h 48mUnited Airlines
Deal found 1/7$277
This American Airlines deal was found by Cheapflights users on 1/6. 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 2/57:58 pmPHX - STL
Nonstop2h 59mAmerican Airlines
Wed 2/126:44 amSTL - PHX
Nonstop3h 40mAmerican Airlines
Deal found 1/6$277
This Delta deal was found by Cheapflights users on 1/7. 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.
Wed 2/56:30 amPHX - STL
1 stop6h 13mDelta
Sat 2/155:00 pmSTL - PHX
1 stop7h 54mDelta
Deal found 1/7$279
This United Airlines deal was found by Cheapflights users on 1/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/131:45 pmTUS - STL
1 stop5h 49mUnited Airlines
Tue 3/184:29 pmSTL - TUS
1 stop6h 33mUnited Airlines
Deal found 1/7$299
This United Airlines deal was found by Cheapflights users on 1/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/32:40 pmPHX - STL
1 stop5h 03mUnited Airlines
Tue 2/48:00 amSTL - PHX
1 stop9h 05mUnited Airlines
Deal found 1/7$313
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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.
Wed 2/57:44 amTUS - STL
1 stop29h 09mAlaska Airlines
Wed 2/122:49 pmSTL - TUS
1 stop10h 08mAlaska Airlines
Deal found 1/6$318

Find flights from Arizona to St. Louis within your budget

Customize your flight search to find flights from Arizona to St. Louis 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 7, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 2/6

8:18 pm-9:16 am

1 stop10h 58m

Lambert-St Louis

Mon 2/10

5:05 pm-9:50 pm

1 stop30h 45m

$107

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 2/12

8:52 am-5:43 pm

1 stop7h 51m

Lambert-St Louis

Sat 2/15

6:54 pm-12:59 am

1 stop7h 05m

$110

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 2/13

7:31 pm-9:16 am

1 stop11h 45m

Lambert-St Louis

Sun 2/16

3:21 pm-11:09 pm

1 stop9h 48m

$223

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 2/5

12:55 am-10:54 am

1 stop7h 59m

Lambert-St Louis

Mon 2/10

5:00 pm-11:36 pm

1 stop8h 36m

$248

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 2/6

8:20 pm-1:53 pm

2 stops15h 33m

Lambert-St Louis

Mon 2/10

2:49 pm-9:00 pm

1 stop8h 11m

$271

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 2/27

6:00 am-11:59 pm

2 stops16h 59m

Lambert-St Louis

Mon 3/3

11:08 pm-7:47 am

1 stop9h 39m

$273

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 2/5

7:58 pm-11:57 pm

Nonstop2h 59m

Lambert-St Louis

Wed 2/12

6:44 am-9:24 am

Nonstop3h 40m

$277

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 2/5

6:30 am-1:43 pm

1 stop6h 13m

Lambert-St Louis

Sat 2/15

5:00 pm-11:54 pm

1 stop7h 54m

$279

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 3/13

1:45 pm-9:34 pm

1 stop5h 49m

Lambert-St Louis

Tue 3/18

4:29 pm-9:02 pm

1 stop6h 33m

$299

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Mon 2/3

2:40 pm-8:43 pm

1 stop5h 03m

Lambert-St Louis

Tue 2/4

8:00 am-4:05 pm

1 stop9h 05m

$313

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 38 results
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Best time to book a flight from Arizona to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Arizona 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 Arizona to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from Arizona to St. Louis (average of $311). Flying from Arizona to St. Louis in March is currently the most expensive (average of $356). 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 AZ to STL?

Find hourly flight availability from Arizona to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 7, 2025.

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

Weekly flight availability from Arizona to St. Louis

Explore weekly flight availability from Arizona to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 7, 2025.

The most flights from USAZ to STL are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 7, 2025.
Read through reviews of airlines operating flights from Arizona to St. Louis, such as United Airlines, Delta and Southwest. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,652 reviews

Boarding

8.2

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

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
4,652 reviews
Southwest
8.1
Very good
4,652 reviews

Boarding

8.2

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

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
9,619 reviews
Southwest
8.1
Very good
4,652 reviews

Boarding

8.2

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

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
8,503 reviews
Southwest
8.1
Very good
4,652 reviews

Boarding

8.2

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

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
8,936 reviews
Southwest
8.1
Very good
4,652 reviews

Boarding

8.2

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

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
4,652 reviews

Boarding

8.2

Food

7.2

Entertainment

7.7

Overall

8.1

Crew

8.7

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 Arizona to St. Louis. 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 into for flights to St. Louis from Arizona?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Arizona.

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

    One-way options have recently been found by users for as low as $53 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $95 and Delta from $110 one-way.

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

    The most popular route from Arizona to St. Louis is Phoenix Sky Harbor Intl - Lambert-St Louis. You may also consider Las Vegas Harry Reid Intl - Lambert-St Louis or Tucson - Lambert-St Louis.

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

    The top 3 most reliable airlines when flying from Arizona to St. Louis are Envoy Air (100%), Alaska Airlines (87%) and American Airlines (85%).

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

    While on average a flight from Arizona to St. Louis is generally $377, our data shows the cheapest flight currently is $159. When looking at the most popular route, (Phoenix Sky Harbor Intl - Lambert-St Louis), you can expect to pay $212 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Arizona to St. Louis 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 Arizona to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Arizona to St. Louis (average of $311). Flying from Arizona to St. Louis in March is currently the most expensive (average of $356). 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 Arizona to St. Louis

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Top 5 airlines flying from Arizona to St. Louis

Discover the top 5 airlines that operate flights from Arizona to St. Louis. 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 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$152FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$131Average$372FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$290FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$263Average$487FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$286Average$407FlexibilityNo cancel feeOn-time63%
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