HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Gilbert

$49+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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 August or November, booked 69 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 September 17, 2025.

Round-trip from

$150
(Cheapflightsfares)

One-way from

$49
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$366
From Lambert-St Louis to Gilbert
Search Deals
One-way flight from Lambert-St Louis to Gilbert
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 10/306:22 pmSTL - PHX
1 stop6h 18mFrontier
Mon 11/37:25 amPHX - STL
Nonstop2h 59mFrontier
Deal found 9/16$150
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Fri 10/1010:59 pmSTL - PHX
Nonstop3h 22mFrontier
Mon 10/132:27 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 9/15$151
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Sat 9/274:58 pmSTL - PHX
1 stop7h 51mFrontier
Sun 9/286:00 amPHX - STL
1 stop25h 06mFrontier
Deal found 9/15$152
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/127:52 pmSTL - PHX
1 stop14h 07mFrontier
Mon 10/139:59 pmPHX - STL
1 stop9h 08mFrontier
Deal found 9/15$153
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/1710:59 pmSTL - PHX
Nonstop3h 22mFrontier
Sun 10/198:03 pmPHX - STL
1 stop13h 40mFrontier
Deal found 9/15$155
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Thu 10/210:49 amSTL - PHX
1 stop10h 21mFrontier
Sat 10/48:00 amPHX - STL
1 stop6h 03mFrontier
Deal found 9/16$157
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/157:52 pmSTL - PHX
1 stop14h 07mFrontier
Fri 10/179:59 pmPHX - STL
1 stop9h 08mFrontier
Deal found 9/15$158
This CheapOair deal was found by Cheapflights users on 9/15. 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.
Wed 10/227:52 pmSTL - PHX
1 stop26h 31mFrontier
Sat 10/254:41 pmPHX - STL
1 stop14h 41mFrontier
Deal found 9/15$163
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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.
Fri 10/1710:59 pmSTL - PHX
Nonstop3h 22mFrontier
Mon 10/202:27 pmPHX - STL
Nonstop2h 59mFrontier
Deal found 9/17$168
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Thu 9/257:55 pmSTL - PHX
1 stop5h 32mFrontier
Sat 9/278:00 amPHX - STL
1 stop6h 03mFrontier
Deal found 9/16$169

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 September 17, 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

Thu 10/16

5:15 am-6:35 am

Nonstop3h 20m

Phoenix Sky Harbor Intl

Thu 10/23

5:25 am-10:15 am

Nonstop2h 50m

$209

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 10/14

5:20 pm-9:15 pm

1 stop5h 55m

Phoenix Sky Harbor Intl

Tue 10/28

7:35 pm-12:30 am

Nonstop2h 55m

$219

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 10/31

5:30 pm-9:35 pm

1 stop6h 05m

Phoenix Sky Harbor Intl

Mon 11/3

12:59 am-8:51 am

1 stop6h 52m

$237

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 11/5

7:40 pm-12:38 am

1 stop5h 58m

Phoenix Sky Harbor Intl

Wed 11/19

7:00 am-1:31 pm

1 stop5h 31m

$237

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 10/15

6:15 am-7:35 am

Nonstop3h 20m

Phoenix Sky Harbor Intl

Fri 10/17

6:55 pm-11:50 pm

Nonstop2h 55m

$273

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 10/30

5:15 am-6:35 am

Nonstop3h 20m

Phoenix Sky Harbor Intl

Sun 11/2

8:05 am-2:30 pm

1 stop5h 25m

$283

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sat 11/1

6:50 am-12:15 pm

1 stop7h 25m

Phoenix Sky Harbor Intl

Sat 11/1

12:59 am-8:51 am

1 stop6h 52m

$297

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 11/14

7:47 pm-12:36 am

1 stop5h 49m

Phoenix Sky Harbor Intl

Fri 11/21

6:22 pm-12:46 am

1 stop5h 24m

$297

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Sat 11/1

6:50 am-12:15 pm

1 stop7h 25m

Phoenix Sky Harbor Intl

Wed 11/5

12:59 am-8:37 am

1 stop6h 38m

$308

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 2/25

6:00 am-11:00 am

1 stop6h 00m

Phoenix Sky Harbor Intl

Wed 2/25

1:50 pm-8:35 pm

1 stop5h 45m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 19 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 September 12, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Gilbert, you should look to book at least 69 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 September 17, 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 at noon 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.

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 September 17, 2025.

The most flights from STL to G1L are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 September 17, 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.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

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 7 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?

    Southwest and Delta can get you from St. Louis to Gilbert in just under 3h 20m. Your travel time can differ by up to 2h 45m. 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 (94%), Alaska Airlines (89%), American Airlines (89%).

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

    On average you can expect to pay $302 for a flight from St. Louis to Gilbert. The cheapest flight overall is $103 while the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl) is currently priced at $139.

  • 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

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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$207FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$158Average$200FlexibilityNo cancel feeOn-time65%
DeltaCheapest$236Average$374FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$262Average$390FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$274Average$416FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$294Average$394FlexibilityNo cancel feeOn-time69%

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.