$58+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
Mar 6 — Mar 131
1 adult, Economy
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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 November or October, booked 87 days in advance, depart on a Wednesday or Friday and return on a Friday
Cheap flight deals from St. Louis to Gilbert
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Best
Last-minute
One-way
Cheapest flights from St. Louis to GilbertExplore 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 February 4, 2026.
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 February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:11 pm
STL
- PHX
1 stop16h 44m
Frontier
Wed 2/259:52 am
PHX
- STL
1 stop5h 01m
Frontier
Deal found 2/2![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 2/3. 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.
Sat 2/212:51 pm
STL
- PHX
1 stop7h 50m
Frontier
Fri 2/274:14 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/3![Frontier logo]()
$154
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Mon 2/234:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/2![Frontier logo]()
$155
This Travelocity deal was found by Cheapflights users on 2/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/810:47 pm
STL
- PHX
Nonstop3h 41m
Frontier
Thu 3/125:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/3![Frontier logo]()
$158
This Frontier deal was found by Cheapflights users on 2/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- PHX
1 stop10h 08m
Frontier
Wed 2/259:52 am
PHX
- STL
1 stop5h 01m
Frontier
Deal found 2/2![Frontier logo]()
$159
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/139:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Tue 2/1711:59 pm
PHX
- STL
1 stop21h 28m
Frontier
Deal found 2/3![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:11 pm
STL
- PHX
1 stop16h 44m
Frontier
Wed 3/49:52 am
PHX
- STL
1 stop5h 01m
Frontier
Deal found 2/2![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Fri 2/272:12 pm
PHX
- STL
2 stops15h 39m
Frontier
Deal found 2/3![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:12 pm
STL
- PHX
1 stop5h 39m
Frontier
Sun 3/155:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/3![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1610:11 pm
STL
- PHX
1 stop16h 44m
Frontier
Fri 2/204:14 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/2![Frontier logo]()
$164
This CheapOair deal was found by Cheapflights users on 2/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Tue 2/246:51 pm
PHX
- STL
1 stop20h 02m
Frontier
Deal found 2/4![Frontier logo]()
$165
Best flights from St. Louis to GilbertDiscover carefully curated flight deals from St. Louis to Gilbert that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from St. Louis to Gilbert that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Southwest deal was found by Cheapflights users on 1/31. 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.
Sat 4/256:05 am
STL
- PHX
Nonstop3h 25m
Southwest
Tue 5/511:10 am
PHX
- STL
1 stop4h 45m
Southwest
Deal found 1/31![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 2/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/210:14 am
STL
- PHX
1 stop6h 39m
United Airlines
Sat 5/910:30 am
PHX
- STL
2 stops10h 29m
United Airlines
Deal found 2/2![United Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 2/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:54 am
STL
- PHX
1 stop7h 34m
United Airlines
Sat 5/29:50 am
PHX
- STL
2 stops11h 09m
United Airlines
Deal found 2/1![United Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 2/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/79:40 pm
STL
- PHX
Nonstop3h 30m
Southwest
Tue 3/103:35 pm
PHX
- STL
1 stop5h 05m
Southwest
Deal found 2/3![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 2/2. 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.
Tue 3/242:25 pm
STL
- PHX
Nonstop3h 30m
Southwest
Tue 3/317:25 am
PHX
- STL
1 stop6h 00m
Southwest
Deal found 2/2![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Sat 4/257:45 am
STL
- PHX
2 stops12h 21m
United Airlines
Tue 5/59:50 am
PHX
- STL
2 stops9h 18m
United Airlines
Deal found 1/31![United Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 2/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:05 pm
STL
- PHX
Nonstop3h 25m
Southwest
Sat 4/188:40 am
PHX
- STL
1 stop5h 35m
Southwest
Deal found 2/4![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 2/2. 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.
Fri 4/176:05 am
STL
- PHX
Nonstop3h 25m
Southwest
Mon 4/205:15 am
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 2/2![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 2/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/178:50 pm
STL
- PHX
Nonstop3h 30m
Southwest
Mon 3/238:05 pm
PHX
- STL
Nonstop2h 45m
Southwest
Deal found 2/3![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/275:15 am
STL
- PHX
Nonstop3h 35m
Southwest
Wed 4/18:40 am
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 2/1![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 2/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:05 pm
STL
- PHX
Nonstop3h 25m
Southwest
Fri 4/247:40 pm
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 2/1![Southwest logo]()
$335
Last-minute flights from St. Louis to GilbertDiscover last-minute flight deals from St. Louis to Gilbert. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Gilbert. Data last updated February 4, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/139:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Tue 2/1711:59 pm
PHX
- STL
1 stop21h 28m
Frontier
Deal found 2/3![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1610:11 pm
STL
- PHX
1 stop16h 44m
Frontier
Fri 2/204:14 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/2![Frontier logo]()
$164
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Mon 2/234:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/2![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Fri 2/272:12 pm
PHX
- STL
2 stops15h 39m
Frontier
Deal found 2/3![Frontier logo]()
$162
This CheapOair deal was found by Cheapflights users on 2/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/209:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Tue 2/246:51 pm
PHX
- STL
1 stop20h 02m
Frontier
Deal found 2/4![Frontier logo]()
$165
This Frontier deal was found by Cheapflights users on 2/3. 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.
Sat 2/212:51 pm
STL
- PHX
1 stop7h 50m
Frontier
Fri 2/274:14 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/3![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 2/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:51 pm
STL
- PHX
1 stop7h 50m
Frontier
Sat 2/286:00 am
PHX
- STL
1 stop6h 56m
Frontier
Deal found 2/2![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:11 pm
STL
- PHX
1 stop16h 44m
Frontier
Wed 2/259:52 am
PHX
- STL
1 stop5h 01m
Frontier
Deal found 2/2![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:11 pm
STL
- PHX
1 stop16h 44m
Frontier
Wed 3/49:52 am
PHX
- STL
1 stop5h 01m
Frontier
Deal found 2/2![Frontier logo]()
$161
This Travelocity deal was found by Cheapflights users on 2/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/810:47 pm
STL
- PHX
Nonstop3h 41m
Frontier
Thu 3/125:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/3![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/118:12 pm
STL
- PHX
1 stop5h 39m
Frontier
Sun 3/155:09 pm
PHX
- STL
Nonstop2h 53m
Frontier
Deal found 2/3![Frontier logo]()
$163
One-way flights from St. Louis to GilbertSearch for one-way flight options from St. Louis to Gilbert. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from St. Louis to Gilbert. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Super.com deal was found by Cheapflights users on 2/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/139:02 pm
STL
- PHX
Nonstop3h 41m
Frontier
Deal found 2/3![Frontier logo]()
$58
This Frontier deal was found by Cheapflights users on 2/3. 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.
Mon 3/28:47 pm
STL
- PHX
Nonstop3h 41m
Frontier
Deal found 2/3![Frontier logo]()
$59
This Frontier deal was found by Cheapflights users on 2/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/41:06 pm
STL
- PHX
Nonstop3h 35m
Frontier
Deal found 2/4![Frontier logo]()
$64
This Super.com deal was found by Cheapflights users on 2/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- PHX
1 stop31h 23m
Frontier
Deal found 2/3![Frontier logo]()
$69
This Frontier deal was found by Cheapflights users on 2/3. 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.
Sat 2/282:51 pm
STL
- PHX
1 stop10h 08m
Frontier
Deal found 2/3![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/168:47 pm
STL
- PHX
Nonstop3h 41m
Frontier
Deal found 2/2![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/308:12 pm
STL
- PHX
1 stop23h 34m
Frontier
Deal found 2/2![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 2/4. 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.
Fri 3/68:12 pm
STL
- PHX
1 stop26h 02m
Frontier
Deal found 2/4![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 2/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:11 pm
STL
- PHX
1 stop11h 39m
Frontier
Deal found 2/2![Frontier logo]()
$80
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 February 4, 2026.
Round-trip from | $151 (Kiwi.com) |
|---|---|
One-way from | $58 (Super.com) |
Popular in | March |
Cheapest in | November |
Average price | $372 |
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 February 4, 2026.
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 4/25
6:05 am-7:30 am
Nonstop3h 25m
Phoenix Sky Harbor Intl
Tue 5/5
11:10 am-5:55 pm
1 stop4h 45m
$291
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Sat 5/2
10:14 am-2:53 pm
1 stop6h 39m
Phoenix Sky Harbor Intl
Sat 5/9
10:30 am-10:59 pm
2 stops10h 29m
$322
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Mon 4/27
8:54 am-2:28 pm
1 stop7h 34m
Phoenix Sky Harbor Intl
Sat 5/2
9:50 am-10:59 pm
2 stops11h 09m
$322
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Sat 3/7
9:40 pm-12:10 am
Nonstop3h 30m
Phoenix Sky Harbor Intl
Tue 3/10
3:35 pm-10:40 pm
1 stop5h 05m
$325
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 3/24
2:25 pm-3:55 pm
Nonstop3h 30m
Phoenix Sky Harbor Intl
Tue 3/31
7:25 am-3:25 pm
1 stop6h 00m
$325
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Wed 4/15
2:05 pm-3:30 pm
Nonstop3h 25m
Phoenix Sky Harbor Intl
Sat 4/18
8:40 am-4:15 pm
1 stop5h 35m
$325
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Sat 4/25
7:45 am-6:06 pm
2 stops12h 21m
Phoenix Sky Harbor Intl
Tue 5/5
9:50 am-9:08 pm
2 stops9h 18m
$327
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Fri 4/17
6:05 am-7:30 am
Nonstop3h 25m
Phoenix Sky Harbor Intl
Mon 4/20
5:15 am-10:05 am
Nonstop2h 50m
$335
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 3/17
8:50 pm-10:20 pm
Nonstop3h 30m
Phoenix Sky Harbor Intl
Mon 3/23
8:05 pm-12:50 am
Nonstop2h 45m
$335
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Fri 3/27
5:15 am-6:50 am
Nonstop3h 35m
Phoenix Sky Harbor Intl
Wed 4/1
8:40 am-1:35 pm
Nonstop2h 55m
$335
Showing 1-10 of 23 results
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.
STL-PHX
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
STL-G1L
STL-PHX
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 January 30, 2026.
To ensure you get the cheapest price possible for a flight from St. Louis to Gilbert, you should look to book at least 87 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 $234). 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 February 4, 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 23% 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 January 31, 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 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 February 4, 2026.
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.
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
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Alternative routes for St. Louis to Gilbert
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Complete your trip
Complete your trip to Gilbert by adding a car rental and/or hotel reservation to your travel itinerary.
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St. Louis and Gilbert flights
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Other flights from St. Louis
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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 February 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$199 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$121 | Average$200 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$141 | Average$347 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$390 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$211 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$221 | Average$393 | FlexibilityNo cancel fee | On-time63% |