$79+ 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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PHX
May 17 — May 241
Round-trip
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 24 days in advance, depart on a Wednesday or Monday and return on a Friday
Cheap flight deals from St. Louis to Gilbert
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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 April 17, 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 April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Thu 5/144:19 pm
STL
- PHX
2 stops17h 25m
Frontier
Sat 5/166:00 am
PHX
- STL
1 stop10h 04m
Frontier
Deal found 4/12![Frontier logo]()
$249
This Frontier deal was found by Cheapflights users on 4/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Thu 5/217:40 am
PHX
- STL
1 stop10h 31m
Frontier
Deal found 4/12![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 4/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/224:59 pm
STL
- PHX
1 stop8h 04m
Frontier
Mon 4/275:16 am
PHX
- STL
1 stop7h 20m
Frontier
Deal found 4/12![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Thu 4/309:55 pm
STL
- PHX
1 stop14h 13m
Frontier
Sun 5/39:24 pm
PHX
- STL
2 stops23h 55m
Frontier
Deal found 4/12![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Sat 5/308:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Mon 6/16:51 pm
PHX
- STL
2 stops17h 57m
Frontier
Deal found 4/12![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Wed 5/135:27 pm
STL
- PHX
2 stops30h 54m
Frontier
Sun 5/176:00 am
PHX
- STL
1 stop6h 48m
Frontier
Deal found 4/12![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Fri 4/178:06 pm
STL
- PHX
1 stop5h 36m
Frontier
Fri 4/2411:20 am
PHX
- STL
1 stop7h 53m
Frontier
Deal found 4/12![Frontier logo]()
$258
This Expedia deal was found by Cheapflights users on 4/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:55 pm
STL
- PHX
1 stop19h 17m
Frontier
Sat 4/1812:30 am
PHX
- STL
1 stop20h 49m
Frontier
Deal found 4/12![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 4/13. 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.
Fri 4/174:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Mon 4/205:16 am
PHX
- STL
1 stop7h 20m
Frontier
Deal found 4/13![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Sat 5/308:16 pm
STL
- PHX
2 stops41h 07m
Multiple Airlines
Sat 6/67:40 am
PHX
- STL
1 stop7h 54m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Wed 4/154:59 pm
STL
- PHX
1 stop8h 04m
Frontier
Sat 4/188:00 am
PHX
- STL
1 stop5h 21m
Frontier
Deal found 4/12![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Fri 4/174:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Sat 4/1812:30 am
PHX
- STL
1 stop20h 49m
Frontier
Deal found 4/12![Frontier logo]()
$267
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 April 17, 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 April 17, 2026.
This Southwest deal was found by Cheapflights users on 4/13. 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.
Thu 5/2811:35 am
STL
- PHX
Nonstop3h 25m
Southwest
Tue 6/24:20 pm
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 4/13![Southwest logo]()
$358
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:15 pm
STL
- PHX
Nonstop3h 10m
Southwest
Sat 6/208:05 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 4/16![Southwest logo]()
$358
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:55 pm
STL
- PHX
Nonstop3h 25m
Southwest
Wed 5/205:35 am
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 4/16![Southwest logo]()
$378
This Southwest deal was found by Cheapflights users on 4/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/125:45 am
STL
- PHX
Nonstop3h 10m
Southwest
Tue 6/165:00 am
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 4/16![Southwest logo]()
$378
This Southwest deal was found by Cheapflights users on 4/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 pm
STL
- PHX
Nonstop3h 25m
Southwest
Sat 6/68:05 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 4/12![Southwest logo]()
$380
This Southwest deal was found by Cheapflights users on 4/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:25 pm
STL
- PHX
1 stop5h 45m
Southwest
Thu 5/77:40 pm
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 4/12![Southwest logo]()
$388
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:30 am
STL
- PHX
1 stop5h 25m
Southwest
Thu 6/45:00 am
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 4/15![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:30 am
STL
- PHX
1 stop5h 25m
Southwest
Mon 6/84:40 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 4/15![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 4/13. 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 5/304:45 pm
STL
- PHX
Nonstop3h 20m
Southwest
Thu 6/188:55 pm
PHX
- STL
Nonstop2h 55m
Southwest
Deal found 4/13![Southwest logo]()
$395
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:25 am
STL
- PHX
1 stop6h 10m
Southwest
Thu 5/217:40 pm
PHX
- STL
Nonstop2h 50m
Southwest
Deal found 4/15![Southwest logo]()
$395
Last-minute flights from St. Louis to GilbertDiscover last-minute flight deals from St. Louis to Gilbert. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Gilbert. Data last updated April 17, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:55 pm
STL
- PHX
1 stop19h 17m
Frontier
Sat 4/1812:30 am
PHX
- STL
1 stop20h 49m
Frontier
Deal found 4/12![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Fri 4/178:06 pm
STL
- PHX
1 stop5h 36m
Frontier
Fri 4/2411:20 am
PHX
- STL
1 stop7h 53m
Frontier
Deal found 4/12![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 4/13. 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.
Fri 4/174:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Mon 4/205:16 am
PHX
- STL
1 stop7h 20m
Frontier
Deal found 4/13![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Fri 4/174:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Sat 4/1812:30 am
PHX
- STL
1 stop20h 49m
Frontier
Deal found 4/12![Frontier logo]()
$267
This Frontier deal was found by Cheapflights users on 4/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/224:59 pm
STL
- PHX
1 stop8h 04m
Frontier
Mon 4/275:16 am
PHX
- STL
1 stop7h 20m
Frontier
Deal found 4/12![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Thu 4/309:55 pm
STL
- PHX
1 stop14h 13m
Frontier
Sun 5/39:24 pm
PHX
- STL
2 stops23h 55m
Frontier
Deal found 4/12![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Wed 5/135:27 pm
STL
- PHX
2 stops30h 54m
Frontier
Sun 5/176:00 am
PHX
- STL
1 stop6h 48m
Frontier
Deal found 4/12![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Thu 5/144:19 pm
STL
- PHX
2 stops17h 25m
Frontier
Sat 5/166:00 am
PHX
- STL
1 stop10h 04m
Frontier
Deal found 4/12![Frontier logo]()
$249
This Frontier deal was found by Cheapflights users on 4/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Thu 5/217:40 am
PHX
- STL
1 stop10h 31m
Frontier
Deal found 4/12![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Sat 5/168:08 pm
STL
- PHX
1 stop13h 36m
Frontier
Tue 5/1911:30 pm
PHX
- STL
1 stop7h 25m
Frontier
Deal found 4/12![Frontier logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Sat 5/308:08 pm
STL
- PHX
1 stop5h 21m
Frontier
Mon 6/16:51 pm
PHX
- STL
2 stops17h 57m
Frontier
Deal found 4/12![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Sat 5/308:16 pm
STL
- PHX
2 stops41h 07m
Multiple Airlines
Sat 6/67:40 am
PHX
- STL
1 stop7h 54m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$263
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 April 17, 2026.
Search for one-way flight options from St. Louis to Gilbert. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Tue 5/126:51 pm
STL
- PHX
1 stop6h 33m
Frontier
Deal found 4/12![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 4/13. 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 5/66:51 pm
STL
- PHX
1 stop6h 33m
Frontier
Deal found 4/13![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 4/14. 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 5/119:18 pm
STL
- PHX
1 stop28h 06m
Frontier
Deal found 4/14![Frontier logo]()
$85
This Frontier deal was found by Cheapflights users on 4/13. 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 5/712:36 pm
STL
- PHX
1 stop12h 48m
Frontier
Deal found 4/13![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com 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
Deal found 4/17![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/146:55 pm
STL
- PHX
1 stop27h 38m
Frontier
Deal found 4/14![Frontier logo]()
$90
This CheapOair deal was found by Cheapflights users on 4/14. 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.
Mon 5/259:06 pm
STL
- PHX
1 stop28h 18m
Frontier
Deal found 4/14![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Sun 5/1012:36 pm
STL
- PHX
1 stop22h 11m
Frontier
Deal found 4/14![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:27 pm
STL
- PHX
1 stop30h 59m
Frontier
Deal found 4/17![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 4/284:59 pm
STL
- PHX
1 stop8h 19m
Frontier
Deal found 4/14![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 4/15. 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 Super.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
Deal found 4/15![Frontier logo]()
$104
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 April 17, 2026.
Round-trip from | $249 (Kiwi.com) |
|---|---|
One-way from | $79 (Kiwi.com) |
Popular in | April |
Cheapest in | November |
Average price | $396 |
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 April 17, 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
Cheapest round-trip
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Thu 5/28
11:35 am-1:00 pm
Nonstop3h 25m
Phoenix Sky Harbor Intl
Tue 6/2
4:20 pm-9:10 pm
Nonstop2h 50m
$358
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Tue 6/16
9:15 pm-10:25 pm
Nonstop3h 10m
Phoenix Sky Harbor Intl
Sat 6/20
8:05 pm-1:00 am
Nonstop2h 55m
$358
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Sun 5/17
9:55 pm-11:20 pm
Nonstop3h 25m
Phoenix Sky Harbor Intl
Wed 5/20
5:35 am-10:25 am
Nonstop2h 50m
$378
Quickest round-trip
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Fri 6/12
5:45 am-6:55 am
Nonstop3h 10m
Phoenix Sky Harbor Intl
Tue 6/16
5:00 am-9:50 am
Nonstop2h 50m
$378
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
$380
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Sat 5/2
2:25 pm-6:10 pm
1 stop5h 45m
Phoenix Sky Harbor Intl
Thu 5/7
7:40 pm-12:30 am
Nonstop2h 50m
$388
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Mon 6/1
8:30 am-11:55 am
1 stop5h 25m
Phoenix Sky Harbor Intl
Thu 6/4
5:00 am-9:50 am
Nonstop2h 50m
$391
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Mon 6/1
8:30 am-11:55 am
1 stop5h 25m
Phoenix Sky Harbor Intl
Mon 6/8
4:40 pm-9:35 pm
Nonstop2h 55m
$391
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Sat 5/30
4:45 pm-6:05 pm
Nonstop3h 20m
Phoenix Sky Harbor Intl
Thu 6/18
8:55 pm-1:50 am
Nonstop2h 55m
$395
St. LouisPhoenix
STL - PHX
STLPHX
Lambert-St Louis
Thu 5/14
8:25 am-12:35 pm
1 stop6h 10m
Phoenix Sky Harbor Intl
Thu 5/21
7:40 pm-12:30 am
Nonstop2h 50m
$395
Showing 1-10 of 22 resultsSorted by cheapest first
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 April 10, 2026.
To ensure you get the cheapest price possible for a flight from St. Louis to Gilbert, you should look to book at least 24 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 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 April 17, 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 April 11, 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 April 17, 2026.
The most flights from STL to G1L are scheduled on a Thursday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 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 April 17, 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.
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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.
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Alternative routes for St. Louis to Gilbert
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Gilbert by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Gilbert by cabin class
Find flights from St. Louis to Gilbert, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Gilbert flights
Browse other St. Louis and Gilbert flight options. Last updated on April 17, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Gilbert flights
Consider these flights traveling from St. Louis to Gilbert.
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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$94 | Average$212 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$121 | Average$199 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$141 | Average$326 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$148 | Average$436 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$209 | Average$371 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$410 | FlexibilityNo cancel fee | On-time63% |