$107+ Cheap flights from St. Louis to Santa Ana, CA (STL - SNA)
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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SNA
Aug 31 — Sep 71
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Santa Ana 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Santa Ana
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Best
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One-way
Cheapest flights from St. Louis to Santa AnaExplore the most affordable flight options available from St. Louis to Santa Ana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.
Explore the most affordable flight options available from St. Louis to Santa Ana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 10/38:10 pm
STL
- SNA
1 stop16h 55m
Frontier
Sat 10/1011:07 am
SNA
- STL
1 stop6h 08m
Frontier
Deal found 7/27![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 10/218:10 pm
STL
- SNA
2 stops23h 25m
Frontier
Sat 10/2411:07 am
SNA
- STL
1 stop6h 08m
Frontier
Deal found 7/27![Frontier logo]()
$245
This Expedia deal was found by Cheapflights users on 7/28. 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.
Mon 9/2112:17 pm
STL
- SNA
1 stop6h 58m
Frontier
Mon 9/284:35 pm
SNA
- STL
1 stop16h 57m
Frontier
Deal found 7/28![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/131:02 pm
STL
- SNA
1 stop24h 03m
Multiple Airlines
Tue 9/157:30 am
SNA
- STL
1 stop26h 02m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/286:45 pm
STL
- SNA
1 stop22h 03m
Multiple Airlines
Wed 9/27:30 am
SNA
- STL
2 stops33h 43m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$290
This CheapOair deal was found by Cheapflights users on 7/30. 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 10/168:10 pm
STL
- SNA
1 stop16h 02m
Frontier
Mon 10/194:50 pm
SNA
- STL
1 stop6h 27m
Frontier
Deal found 7/30![Frontier logo]()
$295
This Expedia deal was found by Cheapflights users on 7/27. 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.
Fri 9/1112:17 pm
STL
- SNA
1 stop6h 58m
Frontier
Mon 9/144:35 pm
SNA
- STL
1 stop16h 57m
Frontier
Deal found 7/27![Frontier logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/16:45 pm
STL
- SNA
1 stop25h 00m
Multiple Airlines
Thu 9/104:35 pm
SNA
- STL
2 stops24h 42m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$304
This CheapOair deal was found by Cheapflights users on 7/27. 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.
Thu 8/137:10 pm
STL
- SNA
1 stop19h 21m
Frontier
Thu 8/209:39 am
SNA
- STL
1 stop7h 34m
Frontier
Deal found 7/27![Frontier logo]()
$308
Best flights from St. Louis to Santa AnaDiscover carefully curated flight deals from St. Louis to Santa Ana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
Discover carefully curated flight deals from St. Louis to Santa Ana that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 1, 2026.
This CheapOair deal was found by Cheapflights users on 7/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:45 pm
STL
- SNA
1 stop22h 03m
Frontier
Sun 8/237:53 pm
SNA
- STL
1 stop19h 57m
Frontier
Deal found 7/31![Frontier logo]()
$341
This Southwest deal was found by Cheapflights users on 7/27. 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 10/216:30 am
STL
- SNA
1 stop5h 45m
Southwest
Sat 10/244:40 pm
SNA
- STL
1 stop4h 55m
Southwest
Deal found 7/27![Southwest logo]()
$375
This Delta deal was found by Cheapflights users on 7/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:22 pm
STL
- SNA
1 stop6h 00m
Delta
Wed 10/217:00 am
SNA
- STL
1 stop8h 44m
Delta
Deal found 7/27![Delta logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:02 am
STL
- SNA
1 stop9h 21m
Alaska Airlines
Mon 10/198:07 am
SNA
- STL
1 stop13h 52m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Thu 8/204:40 pm
STL
- SNA
1 stop6h 04m
United Airlines
Mon 8/246:45 am
SNA
- STL
1 stop7h 49m
United Airlines
Deal found 7/30![United Airlines logo]()
$475
This Southwest deal was found by Cheapflights users on 7/28. 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 9/17:00 am
STL
- SNA
2 stops7h 50m
Southwest
Thu 9/106:45 am
SNA
- STL
2 stops8h 55m
Southwest
Deal found 7/28![Southwest logo]()
$385
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:22 pm
STL
- SNA
2 stops10h 08m
Delta
Mon 10/196:02 pm
SNA
- STL
2 stops12h 51m
Delta
Deal found 7/30![Delta logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:35 am
STL
- SNA
2 stops17h 35m
Alaska Airlines
Sat 9/128:59 pm
SNA
- STL
1 stop18h 11m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$454
Last-minute flights from St. Louis to Santa AnaDiscover last-minute flight deals from St. Louis to Santa Ana. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Santa Ana. Data last updated August 1, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/27. 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 8/127:03 pm
STL
- SNA
1 stop19h 28m
Frontier
Mon 8/177:53 pm
SNA
- STL
1 stop19h 57m
Frontier
Deal found 7/27![Frontier logo]()
$312
This CheapOair deal was found by Cheapflights users on 7/27. 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.
Thu 8/137:10 pm
STL
- SNA
1 stop19h 21m
Frontier
Thu 8/209:39 am
SNA
- STL
1 stop7h 34m
Frontier
Deal found 7/27![Frontier logo]()
$308
This CheapOair deal was found by Cheapflights users on 7/29. 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 8/196:45 pm
STL
- SNA
1 stop19h 46m
Frontier
Thu 8/207:53 pm
SNA
- STL
1 stop19h 57m
Frontier
Deal found 7/29![Frontier logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/207:58 pm
STL
- SNA
1 stop14h 26m
Multiple Airlines
Tue 8/257:30 am
SNA
- STL
1 stop8h 20m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$310
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/216:45 pm
STL
- SNA
1 stop22h 03m
Frontier
Sun 8/239:39 am
SNA
- STL
1 stop7h 34m
Frontier
Deal found 7/28![Frontier logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/217:58 pm
STL
- SNA
2 stops20h 50m
Multiple Airlines
Sun 8/237:45 am
SNA
- STL
1 stop8h 05m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/286:45 pm
STL
- SNA
1 stop22h 03m
Multiple Airlines
Wed 9/27:30 am
SNA
- STL
2 stops33h 43m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$290
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/286:45 pm
STL
- SNA
1 stop22h 03m
Frontier
Sun 8/309:39 am
SNA
- STL
1 stop7h 34m
Frontier
Deal found 7/28![Frontier logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/286:45 pm
STL
- SNA
1 stop22h 03m
Frontier
Fri 9/42:27 pm
SNA
- STL
2 stops48h 55m
Frontier
Deal found 7/29![Frontier logo]()
$345
This CheapOair deal was found by Cheapflights users on 7/29. 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.
Sun 8/306:45 pm
STL
- SNA
1 stop19h 46m
Frontier
Sat 9/53:53 pm
SNA
- STL
1 stop23h 57m
Frontier
Deal found 7/29![Frontier logo]()
$328
One-way flights from St. Louis to Santa AnaSearch for one-way flight options from St. Louis to Santa Ana. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
Search for one-way flight options from St. Louis to Santa Ana. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/131:02 pm
STL
- SNA
1 stop24h 03m
Frontier
Deal found 7/29![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/286:45 pm
STL
- SNA
1 stop22h 03m
Frontier
Deal found 7/29![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 7/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:17 pm
STL
- SNA
1 stop6h 58m
Frontier
Deal found 7/31![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/86:45 pm
STL
- SNA
2 stops42h 20m
Frontier
Deal found 7/30![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/218:10 pm
STL
- SNA
2 stops20h 53m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/86:45 pm
STL
- SNA
3 stops41h 06m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$179
This Southwest deal was found by Cheapflights users on 7/28. 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 9/216:00 pm
STL
- SNA
1 stop5h 10m
Southwest
Deal found 7/28![Southwest logo]()
$183
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/127:03 pm
STL
- SNA
1 stop19h 28m
Frontier
Deal found 7/28![Frontier logo]()
$185
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/81:36 pm
STL
- SNA
1 stop7h 23m
United Airlines
Deal found 7/30![United Airlines logo]()
$188
This Frontier deal was found by Cheapflights users on 7/28. 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 9/2512:17 pm
STL
- SNA
1 stop6h 58m
Frontier
Deal found 7/28![Frontier logo]()
$192
Find flight deals from St. Louis to Santa Ana
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Santa Ana (SNA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $236 (Kiwi.com) |
One-way from | $107 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $440 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Santa Ana 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 August 1, 2026.
Use the filters below to find and compare flights from St. Louis to Santa Ana that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Fri 8/21
6:45 pm-2:48 pm
1 stop22h 03m
Santa Ana J. Wayne/Orange Cnty
Sun 8/23
7:53 pm-5:50 pm
1 stop19h 57m
$341
Quickest round-trip
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Wed 10/21
6:30 am-10:15 am
1 stop5h 45m
Santa Ana J. Wayne/Orange Cnty
Sat 10/24
4:40 pm-11:35 pm
1 stop4h 55m
$375
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Mon 10/19
2:22 pm-6:22 pm
1 stop6h 00m
Santa Ana J. Wayne/Orange Cnty
Wed 10/21
7:00 am-5:44 pm
1 stop8h 44m
$375
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Tue 9/1
7:00 am-12:50 pm
2 stops7h 50m
Santa Ana J. Wayne/Orange Cnty
Thu 9/10
6:45 am-5:40 pm
2 stops8h 55m
$385
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Fri 10/16
2:22 pm-10:30 pm
2 stops10h 08m
Santa Ana J. Wayne/Orange Cnty
Mon 10/19
6:02 pm-8:53 am
2 stops12h 51m
$413
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Fri 10/16
7:02 am-2:23 pm
1 stop9h 21m
Santa Ana J. Wayne/Orange Cnty
Mon 10/19
8:07 am-11:59 pm
1 stop13h 52m
$444
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Tue 9/1
6:35 am-10:10 pm
2 stops17h 35m
Santa Ana J. Wayne/Orange Cnty
Sat 9/12
8:59 pm-5:10 pm
1 stop18h 11m
$454
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Thu 8/20
4:40 pm-8:44 pm
1 stop6h 04m
Santa Ana J. Wayne/Orange Cnty
Mon 8/24
6:45 am-4:34 pm
1 stop7h 49m
$475
Cheapest one-way
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Mon 9/14
12:17 pm-5:15 pm
1 stop6h 58m
$145
St. LouisSanta Ana
STL - SNA
STLSNA
Lambert-St Louis
Tue 9/8
6:45 pm-11:05 am
2 stops42h 20m
$151
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Santa Ana
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Santa Ana in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Santa Ana, California flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Santa Ana, California flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Santa Ana, California flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Santa Ana, California flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Santa Ana, California flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Santa Ana
Have a flexible travel schedule? Discover the best time to fly to Santa Ana from St. Louis with our price prediction graph.
STL-SNA
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 Santa Ana
Prices
More
How far ahead should I book a flight from St. Louis to Santa Ana, California?
To ensure you get the cheapest price possible for a flight from St. Louis to Santa Ana, California, you should look to book at least 57 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 Santa Ana, California?
Currently, November is the cheapest month in which you can book a flight from St. Louis to Santa Ana, California (average of $332). Flying from St. Louis to Santa Ana, California in May is currently the most expensive (average of $790). 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.
How much does it cost to fly round-trip from St. Louis to Santa Ana, California?
Airfare is below average for this route at the moment.
St. Louis to Santa Ana, California flights typically cost between $377 and $592 in October.The cheapest round-trip price found within the last 5 days was $236 on Frontier (Oct 3-Oct 10).
What’s the top layover airport for flights from St. Louis to Santa Ana, California?
Share of 1-stop round-trip flights from St. Louis to Santa Ana, California chosen by Cheapflights users in the past 12 months, using the same layover each way.
Phoenix (PHX) – chosen by Cheapflights users on 50% of 1-stop itineraries from St. Louis to Santa Ana, California on Cheapflights.
What’s the cheapest layover airport for flights from St. Louis to Santa Ana, California?
Average round-trip fare for 1-stop flights from St. Louis to Santa Ana, California, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $341.
What’s the fastest layover option from St. Louis to Santa Ana, California?
Shortest average travel time for 1-stop one-way flights from St. Louis to Santa Ana, California, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 5h 43m.
Which airport typically offers the quickest layover for flights from St. Louis to Santa Ana, California?
Average layover duration for 1-stop one-way flights from St. Louis to Santa Ana, California, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 0h 55m.
Reviews of airlines servicing Santa Ana
Get insights into the airlines that provide service to Santa Ana. 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 Santa Ana. Reviews last updated August 1, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from St. Louis to Santa Ana 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
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
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Top 4 airlines flying from St. Louis to Santa Ana
Discover the top 4 airlines that operate flights from St. Louis to Santa Ana. 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 August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$159 | Average$270 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$296 | Average$458 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$332 | Average$576 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$332 | Average$513 | FlexibilityNo cancel fee | On-time69% |