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$65+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SNA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Santa Ana J. Wayne/Orange Cnty are usually found in April or November, booked 12 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$130
(CheapOair)

One-way from

$65
(CheapOair)

Popular in

June

Cheapest in

April

Average price

$422
Provider with most accurate pricing for Lambert-St Louis-Santa Ana J. Wayne/Orange Cnty flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Santa Ana J. Wayne/Orange Cnty flights.
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From Lambert-St Louis to Santa Ana J. Wayne/Orange Cnty
Search Deals
One-way flight from Lambert-St Louis to Santa Ana J. Wayne/Orange Cnty
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from St. Louis to Santa Ana

Cheapest flights from St. Louis to Santa Ana
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 October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/28. 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 11/127:45 pmSTL - SNA
1 stop17h 31mFrontier
Sat 11/152:20 pmSNA - STL
1 stop16h 47mFrontier
Deal found 10/28$130
This CheapOair deal was found by Cheapflights users on 10/30. 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 11/142:42 pmSTL - SNA
1 stop6h 06mFrontier
Tue 11/183:01 pmSNA - STL
1 stop16h 06mFrontier
Deal found 10/30$137
This CheapOair deal was found by Cheapflights users on 10/29. 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.
Thu 11/137:45 pmSTL - SNA
1 stop17h 31mFrontier
Mon 11/1712:01 pmSNA - STL
1 stop19h 06mFrontier
Deal found 10/29$150
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/510:44 pmSTL - SNA
1 stop14h 00mMultiple Airlines
Tue 12/91:35 pmSNA - STL
1 stop18h 39mMultiple Airlines
Deal found 10/29$169
This CheapOair deal was found by Cheapflights users on 10/29. 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.
Mon 11/102:42 pmSTL - SNA
1 stop6h 06mFrontier
Wed 11/123:01 pmSNA - STL
1 stop16h 06mFrontier
Deal found 10/29$176
This CheapOair deal was found by Cheapflights users on 10/30. 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 11/147:45 pmSTL - SNA
1 stop19h 50mFrontier
Mon 11/1712:01 pmSNA - STL
1 stop19h 06mFrontier
Deal found 10/30$183
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/67:43 pmSTL - SNA
1 stop18h 59mMultiple Airlines
Sat 12/138:19 pmSNA - STL
1 stop13h 53mMultiple Airlines
Deal found 10/29$185
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/67:43 pmSTL - SNA
1 stop18h 59mFrontier
Sun 12/146:34 pmSNA - STL
2 stops13h 40mFrontier
Deal found 10/29$186
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/67:43 pmSTL - SNA
2 stops16h 47mFrontier
Tue 12/91:35 pmSNA - STL
1 stop18h 39mFrontier
Deal found 10/29$191
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/67:43 pmSTL - SNA
1 stop18h 59mMultiple Airlines
Thu 12/1111:39 amSNA - STL
2 stops20h 35mMultiple Airlines
Deal found 10/29$195
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Fri 11/142:42 pmSTL - SNA
1 stop8h 19mMultiple Airlines
Mon 11/171:31 pmSNA - STL
2 stops17h 36mMultiple Airlines
Deal found 10/30$196
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sat 12/67:43 pmSTL - SNA
1 stop18h 59mFrontier
Fri 12/121:35 pmSNA - STL
1 stop18h 39mFrontier
Deal found 10/29$198

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 October 30, 2025.
Use the filters below to find and compare flights from St. Louis to Santa Ana that are best for you.

Fly from

St. Louis

Fly to

Santa Ana

Route

Depart

Return

Price

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 1/9

7:43 pm-12:22 pm

1 stop18h 39m

Santa Ana J. Wayne/Orange Cnty

Wed 1/14

5:46 pm-9:46 am

2 stops14h 00m

$176

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 11/14

2:42 pm-9:01 pm

1 stop8h 19m

Santa Ana J. Wayne/Orange Cnty

Mon 11/17

1:31 pm-9:07 am

2 stops17h 36m

$196

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 11/27

9:54 pm-3:59 pm

1 stop20h 05m

Santa Ana J. Wayne/Orange Cnty

Thu 12/4

6:34 pm-12:12 pm

1 stop15h 38m

$206

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 11/13

7:45 pm-9:01 pm

2 stops27h 16m

Santa Ana J. Wayne/Orange Cnty

Mon 11/17

12:01 pm-9:07 am

1 stop19h 06m

$242

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 11/19

7:45 pm-11:19 am

1 stop17h 34m

Santa Ana J. Wayne/Orange Cnty

Sun 11/23

10:07 am-6:19 pm

2 stops30h 12m

$268

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 11/24

7:43 pm-11:19 am

1 stop17h 36m

Santa Ana J. Wayne/Orange Cnty

Tue 12/2

1:35 pm-10:14 am

1 stop18h 39m

$282

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Sat 1/10

7:00 am-6:17 pm

2 stops13h 17m

Santa Ana J. Wayne/Orange Cnty

Wed 1/14

7:30 am-9:35 pm

2 stops12h 05m

$334

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Tue 1/6

7:00 am-4:14 pm

2 stops11h 14m

Santa Ana J. Wayne/Orange Cnty

Sat 1/10

11:20 am-11:25 pm

2 stops10h 05m

$334

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 12/5

5:34 pm-10:17 am

2 stops18h 43m

Santa Ana J. Wayne/Orange Cnty

Wed 12/10

6:50 pm-9:10 am

2 stops12h 20m

$334

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 2/20

1:20 pm-6:15 pm

1 stop6h 55m

Santa Ana J. Wayne/Orange Cnty

Mon 2/23

8:55 am-5:50 pm

2 stops6h 55m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 23 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Santa Ana, California flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Santa Ana, California flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
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

How far ahead should I book a flight from St. Louis to Santa Ana, California?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Santa Ana. Price data was last updated on October 24, 2025.

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 11 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 $67). Flying from St. Louis to Santa Ana, California in June is currently the most expensive (average of $248). 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 SNA?

Find hourly flight availability from St. Louis to Santa Ana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from St. Louis to Santa Ana, California is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 55% on airfare.

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 October 30, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,998 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,035 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,122 reviews
Southwest
8.0
Very good
4,243 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Santa Ana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Santa Ana, California?

    For as low as $186, Frontier can have you in Santa Ana, California from St. Louis in 18h 59m. There are 1565 mi between St. Louis and Santa Ana, California.

  • What are the cheapest airlines flying from St. Louis to Santa Ana, California round-trip?

    Our cheapest airline available from St. Louis to Santa Ana, California is Frontier. Our recent data shows that you can find tickets from as low as $144 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $277 and $296 round-trip. You may be able to fly from St. Louis to Santa Ana, California for 66% less than the average price by searching for these airlines.

  • Can I find deals for flights from St. Louis to Santa Ana that include hotel bookings?

    Yes. In addition to deals on St. Louis to Santa Ana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Santa Ana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Santa Ana.

  • Can I find deals for business class flights from St. Louis to Santa Ana?

    Yes. Cheapflights offers flight deals from St. Louis to Santa Ana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to 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 $67). Flying from St. Louis to Santa Ana, California in June is currently the most expensive (average of $248). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Santa Ana?

Book flights to Santa Ana if you plan to visit one of these locations
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Alternative routes for St. Louis to Santa Ana

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from St. Louis to Santa Ana

Discover the top 5 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$218FlexibilityNo cancel feeOn-time62%
DeltaCheapest$277Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$296Average$439FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$322Average$446FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$332Average$446FlexibilityNo cancel feeOn-time63%

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