Gilbert

$83+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Jun 6 — Jun 131
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Cheapflights Tip: The best prices from Lambert-St Louis to Gilbert are usually found in November or October, booked 24 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap 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 May 7, 2026.

This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/177:03 pm
STL
-
PHX
1 stop6h 01m
Frontier
Sat 6/206:24 am
PHX
-
STL
1 stop10h 10m
Frontier
Deal found 5/6$230
This Frontier deal was found by Cheapflights users on 5/3. 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.
Tue 5/196:51 pm
STL
-
PHX
1 stop6h 33m
Frontier
Thu 5/217:40 am
PHX
-
STL
1 stop10h 31m
Frontier
Deal found 5/3$235
This Orbitz deal was found by Cheapflights users on 5/5. 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 6/36:51 pm
STL
-
PHX
1 stop18h 32m
Frontier
Sun 6/75:15 am
PHX
-
STL
1 stop12h 08m
Frontier
Deal found 5/5$236
This Frontier deal was found by Cheapflights users on 5/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:08 pm
STL
-
PHX
1 stop5h 24m
Frontier
Sat 7/186:40 am
PHX
-
STL
1 stop10h 43m
Frontier
Deal found 5/6$238
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:08 pm
STL
-
PHX
1 stop15h 57m
Frontier
Fri 5/296:51 pm
PHX
-
STL
2 stops22h 40m
Frontier
Deal found 5/4$239
This Expedia deal was found by Cheapflights users on 5/5. 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.
Wed 5/206:51 pm
STL
-
PHX
1 stop6h 33m
Frontier
Tue 5/2610:27 pm
PHX
-
STL
1 stop17h 39m
Frontier
Deal found 5/5$240
This Trip.com deal was found by Cheapflights users on 5/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:52 pm
STL
-
PHX
1 stop7h 26m
Frontier
Tue 7/2110:27 pm
PHX
-
STL
1 stop17h 38m
Frontier
Deal found 5/6$241
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:30 pm
STL
-
PHX
1 stop6h 54m
Frontier
Tue 6/911:32 am
PHX
-
STL
2 stops29h 51m
Frontier
Deal found 5/4$242
This Expedia deal was found by Cheapflights users on 5/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:08 pm
STL
-
PHX
1 stop5h 24m
Frontier
Mon 8/104:48 pm
PHX
-
STL
1 stop24h 35m
Frontier
Deal found 5/6$244
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/36:51 pm
STL
-
PHX
1 stop6h 33m
Frontier
Mon 6/810:27 pm
PHX
-
STL
2 stops42h 56m
Frontier
Deal found 5/5$245
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:06 pm
STL
-
PHX
1 stop16h 17m
Frontier
Tue 6/911:21 am
PHX
-
STL
1 stop6h 02m
Frontier
Deal found 5/6$246
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:51 pm
STL
-
PHX
1 stop6h 33m
Frontier
Sat 6/612:29 pm
PHX
-
STL
2 stops27h 04m
Frontier
Deal found 5/6$247

Find 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 May 7, 2026.

Round-trip from

$230
(Frontier)

One-way from

$83
(Kiwi.com)

Popular in

April

Cheapest in

November

Average price

$375
From Lambert-St Louis to Gilbert
One-way flight from Lambert-St Louis to Gilbert
Highest demand for flights based on searches. 9% potential increase in price ($34 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in May 2026

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 May 7, 2026.
Use the filters below to find and compare flights from St. Louis to Gilbert that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 9/29

11:55 am-1:05 pm

Nonstop3h 10m

Phoenix Sky Harbor Intl

Sat 10/3

7:20 am-2:20 pm

1 stop5h 00m

$385

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 10/21

6:59 pm-11:42 pm

1 stop6h 43m

Phoenix Sky Harbor Intl

Tue 10/27

10:05 am-5:56 pm

1 stop5h 51m

$395

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Mon 6/1

6:00 pm-7:25 pm

Nonstop3h 25m

Phoenix Sky Harbor Intl

Sat 6/6

8:05 pm-1:00 am

Nonstop2h 55m

$396
Quickest round-trip

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 5/29

6:05 am-7:30 am

Nonstop3h 25m

Phoenix Sky Harbor Intl

Mon 6/1

5:15 am-10:05 am

Nonstop2h 50m

$396

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 5/27

6:35 am-10:15 am

1 stop5h 40m

Phoenix Sky Harbor Intl

Mon 6/1

5:15 am-10:05 am

Nonstop2h 50m

$406

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 6/2

5:35 am-9:20 am

1 stop5h 45m

Phoenix Sky Harbor Intl

Thu 6/4

5:00 am-9:50 am

Nonstop2h 50m

$406

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 5/28

2:25 pm-3:50 pm

Nonstop3h 25m

Phoenix Sky Harbor Intl

Mon 6/1

5:35 am-1:10 pm

1 stop5h 35m

$406

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Mon 6/1

6:00 pm-7:25 pm

Nonstop3h 25m

Phoenix Sky Harbor Intl

Wed 6/3

4:20 pm-9:10 pm

Nonstop2h 50m

$406

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 7/16

7:50 am-9:00 am

Nonstop3h 10m

Phoenix Sky Harbor Intl

Wed 7/22

4:50 pm-11:40 pm

1 stop4h 50m

$415

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Fri 10/23

5:00 am-8:45 am

1 stop5h 45m

Phoenix Sky Harbor Intl

Wed 10/28

7:45 am-12:40 pm

Nonstop2h 55m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Showing 1-10 of 21 resultsSorted by cheapest first
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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

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 May 7, 2026.

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 29% on your trip compared to booking a flight in the morning.

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 May 2, 2026.

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 May 7, 2026.

The most flights from STL to G1L are scheduled on a Monday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from St. Louis to Gilbert?

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 May 7, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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?

    Southwest and Delta can get you from St. Louis to Gilbert in just under 3h 10m. Your travel time can differ by up to 3h 33m. 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 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 $67. American Airlines flights start at $144 while deals on Southwest start at $147 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: Envoy Air (100%), Alaska Airlines (87%), American Airlines (83%).

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

    On average you can expect to pay $392 for a flight from St. Louis to Gilbert. The cheapest flight overall is $178 while the most popular route, (Lambert-St Louis - Phoenix Sky Harbor Intl) is currently priced at $309.

  • 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.

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 May 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$94Average$212FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$121Average$199FlexibilityNo cancel feeOn-time65%
DeltaCheapest$141Average$336FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$148Average$436FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$209Average$372FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$218Average$412FlexibilityNo cancel feeOn-time63%

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