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Gilbert

$56+ Cheap flights from St. Louis (STL) to Gilbert, AZ

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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Gilbert are usually found in August or July, booked 76 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from St. Louis to Gilbert

Keep the following information in mind while searching for St. Louis to Gilbert flight deals. Data was last updated July 3, 2025.

Round-trip from

$222
(FlightHub)

One-way from

$56
(Priceline)

Popular in

March

Cheapest in

August

Average price

$284
From Lambert-St Louis to Gilbert
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One-way flight from Lambert-St Louis to Gilbert
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from St. Louis to Gilbert

Cheapest flights from St. Louis to Gilbert
Explore the most affordable flight options available from St. Louis to Gilbert. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:55 pmSTL - PHX
1 stop13h 37mFrontier
Sun 9/286:18 pmPHX - STL
1 stop12h 48mFrontier
Deal found 7/2$222
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:30 pmSTL - PHX
1 stop9h 07mMultiple Airlines
Mon 9/19:19 pmPHX - STL
1 stop9h 52mMultiple Airlines
Deal found 7/1$224
This FlightHub deal was found by Cheapflights users on 7/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2510:47 amSTL - PHX
1 stop13h 47mSpirit Airlines
Sun 7/2711:49 pmPHX - STL
1 stop8h 03mSpirit Airlines
Deal found 7/2$233
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Tue 8/267:53 amSTL - PHX
Nonstop3h 15mAmerican Airlines
Thu 9/412:59 pmPHX - STL
Nonstop3h 01mAmerican Airlines
Deal found 7/2$257
This Southwest deal was found by Cheapflights users on 7/2. 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 9/106:15 amSTL - PHX
Nonstop3h 15mSouthwest
Wed 9/1710:05 amPHX - STL
1 stop5h 45mSouthwest
Deal found 7/2$267
This Delta deal was found by Cheapflights users on 7/2. 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 11/47:30 amSTL - PHX
1 stop6h 39mDelta
Wed 11/1212:59 amPHX - STL
1 stop6h 45mDelta
Deal found 7/2$277

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Gilbert 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 July 3, 2025.
Use the filters below to find and compare flights from St. Louis to Gilbert that are best for you.

Fly from

St. Louis

Fly to

Gilbert

Route

Depart

Return

Price

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sat 9/20

7:55 pm-7:32 am

1 stop13h 37m

Phoenix Sky Harbor Intl

Sun 9/28

6:18 pm-9:06 am

1 stop12h 48m

$222

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 8/28

2:30 pm-9:37 pm

1 stop9h 07m

Phoenix Sky Harbor Intl

Mon 9/1

9:19 pm-9:11 am

1 stop9h 52m

$224

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 7/25

10:47 am-10:34 pm

1 stop13h 47m

Phoenix Sky Harbor Intl

Sun 7/27

11:49 pm-9:52 am

1 stop8h 03m

$233

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 8/26

7:53 am-9:08 am

Nonstop3h 15m

Phoenix Sky Harbor Intl

Thu 9/4

12:59 pm-6:00 pm

Nonstop3h 01m

$257

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 9/10

6:15 am-7:30 am

Nonstop3h 15m

Phoenix Sky Harbor Intl

Wed 9/17

10:05 am-5:50 pm

1 stop5h 45m

$267

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 9/23

6:00 am-10:18 am

1 stop6h 18m

Phoenix Sky Harbor Intl

Mon 9/29

5:20 pm-12:38 am

1 stop5h 18m

$277

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 8/13

7:29 pm-10:44 pm

1 stop5h 15m

$56

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 8/15

2:30 pm-9:37 pm

1 stop9h 07m

$62

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 8/28

7:53 am-9:08 am

Nonstop3h 15m

$129

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 8/5

2:25 pm-6:50 pm

1 stop6h 25m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 12 results
1
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Best time to book a flight from St. Louis to Gilbert

Have a flexible travel schedule? Discover the best time to fly to Gilbert 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Gilbert

How far ahead should I book a flight from St. Louis to Gilbert?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Gilbert. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Gilbert, you should look to book at least 76 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Gilbert (average of $258). Flying from St. Louis to Gilbert 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 G1L?

Find hourly flight availability from St. Louis to Gilbert. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Gilbert as you normally would.

What is the cheapest day to fly from St. Louis to Gilbert?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Gilbert. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Gilbert flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Gilbert

Get insights into the airlines that provide service to Gilbert. 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 Gilbert. Reviews last updated July 3, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from St. Louis to Gilbert to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.6

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.6

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.6

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.6

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,086 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.6

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,286 reviews
Southwest
8.0
Very good
4,266 reviews

Entertainment

7.6

Crew

8.6

Food

7.0

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Gilbert. 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 Gilbert?

    For a flight from St. Louis to Gilbert, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 4 outbound flights to Gilbert per day. 6 airlines have flights to Gilbert from Lambert-St Louis on a regular basis.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $56. Spirit Airlines flights start at $62 while deals on American Airlines start at $129 one-way.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Gilbert on time: SkyWest Airlines (84%), American Airlines (77%), Alaska Airlines (77%).

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

    On average you can expect to pay $341 for a flight from St. Louis to Gilbert. The cheapest flight overall is $147 while the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl) is currently priced at $142.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Gilbert (average of $258). Flying from St. Louis to Gilbert 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.

See more FAQs

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Top 6 airlines flying from St. Louis to Gilbert

Discover the top 6 airlines that operate flights from St. Louis to Gilbert. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$202FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$121Average$200FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$177Average$374FlexibilityNo cancel feeOn-time71%
DeltaCheapest$216Average$369FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$226Average$368FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$283Average$412FlexibilityNo cancel feeOn-time63%

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