Gilbert

$29+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
dic. 12 — dic. 191
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Gilbert with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Lambert-St Louis to Gilbert are usually found in October or November, booked 86 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 noviembre 12, 2025.

This American Airlines deal was found by Cheapflights users on 11/12. 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.
sáb. 12/62:37 pmSTL - PHX
Nonstop3h 29mAmerican Airlines
sáb. 12/139:44 amPHX - STL
Nonstop3h 07mAmerican Airlines
Deal found 11/12$149
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/283:53 pmSTL - PHX
Nonstop3h 33mFrontier
mié. 12/37:43 pmPHX - STL
1 stop15h 29mFrontier
Deal found 11/10$150
This CheapOair deal was found by Cheapflights users on 11/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/269:54 pmSTL - PHX
1 stop11h 25mFrontier
lun. 12/111:14 amPHX - STL
Nonstop2h 54mFrontier
Deal found 11/12$152
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
mié. 12/37:43 pmSTL - PHX
1 stop13h 23mFrontier
dom. 12/147:00 amPHX - STL
1 stop26h 14mFrontier
Deal found 11/10$153
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
vie. 11/213:53 pmSTL - PHX
Nonstop3h 33mFrontier
lun. 12/110:43 pmPHX - STL
2 stops34h 31mFrontier
Deal found 11/11$154
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
lun. 11/249:54 pmSTL - PHX
1 stop11h 25mFrontier
lun. 12/111:14 amPHX - STL
Nonstop2h 54mFrontier
Deal found 11/12$156
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/267:43 pmSTL - PHX
1 stop5h 49mFrontier
vie. 11/2811:14 amPHX - STL
Nonstop2h 54mFrontier
Deal found 11/11$157
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
mar. 12/93:30 pmSTL - PHX
2 stops24h 37mFrontier
mar. 12/167:00 amPHX - STL
1 stop26h 14mFrontier
Deal found 11/11$158
This CheapOair deal was found by Cheapflights users on 11/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/283:53 pmSTL - PHX
Nonstop3h 33mFrontier
dom. 11/3010:55 pmPHX - STL
1 stop24h 02mFrontier
Deal found 11/11$161
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
dom. 11/239:54 pmSTL - PHX
1 stop11h 25mFrontier
lun. 12/111:14 amPHX - STL
Nonstop2h 54mFrontier
Deal found 11/11$162
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
lun. 12/1512:07 pmSTL - PHX
Nonstop3h 31mFrontier
vie. 12/193:50 pmPHX - STL
Nonstop2h 57mFrontier
Deal found 11/11$163
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
lun. 12/228:52 pmSTL - PHX
Nonstop3h 31mFrontier
lun. 12/294:10 pmPHX - STL
Nonstop2h 57mFrontier
Deal found 11/10$165

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 noviembre 12, 2025.

Round-trip from

$145
(CheapOair)

One-way from

$29
(Kiwi.com)

Popular in

March

Cheapest in

October

Average price

$321
From Lambert-St Louis to Gilbert
One-way flight from Lambert-St Louis to Gilbert
Highest demand for flights based on searches. 10% potential increase in price ($43 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in November 2025

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 noviembre 12, 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

sáb. 1/10

7:43 pm-8:06 am

1 stop13h 23m

Phoenix Sky Harbor Intl

mié. 1/14

2:59 pm-8:53 pm

2 stops28h 54m

$165

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 1/28

8:05 am-2:16 pm

1 stop7h 11m

Phoenix Sky Harbor Intl

sáb. 1/31

3:25 pm-10:00 pm

1 stop5h 35m

$234

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mar. 12/16

8:15 pm-10:40 pm

Nonstop3h 25m

Phoenix Sky Harbor Intl

vie. 12/19

8:45 pm-12:35 am

Nonstop2h 50m

$238

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 2/4

5:55 am-8:35 am

Nonstop3h 40m

Phoenix Sky Harbor Intl

sáb. 2/7

5:00 pm-8:50 pm

Nonstop2h 50m

$297

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mar. 2/3

8:30 am-4:04 pm

1 stop8h 34m

Phoenix Sky Harbor Intl

mié. 2/4

12:28 am-10:41 am

1 stop9h 13m

$314

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

sáb. 1/17

7:00 am-1:09 pm

1 stop7h 09m

Phoenix Sky Harbor Intl

vie. 1/23

12:59 am-10:43 am

1 stop8h 44m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

dom. 1/11

5:25 am-8:10 am

Nonstop3h 45m

Phoenix Sky Harbor Intl

mié. 1/14

6:55 am-10:45 am

Nonstop2h 50m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mar. 12/23

10:45 pm-1:10 am

Nonstop3h 25m

Phoenix Sky Harbor Intl

lun. 12/29

6:35 am-10:25 am

Nonstop2h 50m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

dom. 12/21

5:00 am-7:35 am

Nonstop3h 35m

Phoenix Sky Harbor Intl

mié. 12/24

8:25 am-12:20 pm

Nonstop2h 55m

$317

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

sáb. 12/13

1:35 pm-5:51 pm

1 stop5h 16m

Phoenix Sky Harbor Intl

mié. 12/17

10:10 am-10:45 pm

2 stops11h 35m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 18 results
1
2

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 November 7, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Gilbert, you should look to book at least 86 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, October is the cheapest month in which you can book a flight from St. Louis to Gilbert (average of $107). Flying from St. Louis to Gilbert in June is currently the most expensive (average of $235). 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 noviembre 12, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Gilbert in the evening. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at noon.

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 Friday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from St. Louis to Gilbert

Explore weekly flight availability from St. Louis to Gilbert. 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 noviembre 12, 2025.

The most flights from STL to G1L are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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 noviembre 12, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Crew

8.6

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 8 outbound flights to Gilbert per day. 6 airlines have flights to Gilbert from Lambert-St Louis on a regular basis.

  • How long is the flight from St. Louis to Gilbert?

    Frontier, United Airlines, and Southwest can get you from St. Louis to Gilbert in just under 3h 25m. Your travel time can differ by up to 9h 58m. The distance between St. Louis and Gilbert is about 1258 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 (100%), Alaska Airlines (83%), American Airlines (82%).

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

    On average you can expect to pay $409 for a flight from St. Louis to Gilbert. The cheapest flight overall is $69 while the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl) is currently priced at $110.

  • 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, October is the cheapest month in which you can book a flight from St. Louis to Gilbert (average of $107). Flying from St. Louis to Gilbert in June is currently the most expensive (average of $235). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 noviembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$94Average$207FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$158Average$200FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$223Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$372FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$378FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$248Average$407FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.