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$84+ Cheap flights from St. Louis to Santa Ana (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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SNA
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 11 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 August 14, 2025.

Round-trip from

$158
(Priceline)

One-way from

$84
(Frontier)

Popular in

June

Cheapest in

April

Average price

$411
From Lambert-St Louis to Santa Ana J. Wayne/Orange Cnty
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One-way flight from Lambert-St Louis to Santa Ana J. Wayne/Orange Cnty
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Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 14, 2025.

This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:38 pmSTL - SNA
1 stop8h 30mFrontier
Fri 10/241:06 pmSNA - STL
1 stop5h 58mFrontier
Deal found 8/14$158
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/267:55 pmSTL - SNA
1 stop18h 18mFrontier
Tue 9/3012:58 pmSNA - STL
1 stop18h 08mFrontier
Deal found 8/12$242
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/134:58 pmSTL - SNA
1 stop7h 07mMultiple Airlines
Thu 9/181:00 pmSNA - STL
1 stop22h 53mMultiple Airlines
Deal found 8/12$249
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:55 pmSTL - SNA
1 stop18h 18mFrontier
Tue 9/1612:58 pmSNA - STL
1 stop18h 08mFrontier
Deal found 8/12$251
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/277:55 pmSTL - SNA
1 stop17h 12mFrontier
Tue 9/3012:58 pmSNA - STL
1 stop18h 08mFrontier
Deal found 8/12$252
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:52 pmSTL - SNA
2 stops42h 29mFrontier
Fri 10/172:35 pmSNA - STL
2 stops16h 32mFrontier
Deal found 8/13$254
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:55 pmSTL - SNA
1 stop18h 18mFrontier
Mon 9/811:52 amSNA - STL
1 stop19h 14mFrontier
Deal found 8/12$256
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:52 pmSTL - SNA
1 stop17h 24mFrontier
Tue 11/1112:01 pmSNA - STL
1 stop19h 06mFrontier
Deal found 8/12$257
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/269:35 pmSTL - SNA
1 stop17h 40mMultiple Airlines
Tue 9/302:15 pmSNA - STL
2 stops16h 51mMultiple Airlines
Deal found 8/12$258
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/134:58 pmSTL - SNA
1 stop7h 07mMultiple Airlines
Sat 9/206:45 amSNA - STL
1 stop7h 18mMultiple Airlines
Deal found 8/13$260
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:55 pmSTL - SNA
1 stop17h 12mFrontier
Mon 9/811:52 amSNA - STL
1 stop19h 14mFrontier
Deal found 8/14$262

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 14, 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

Mon 10/20

12:38 pm-7:08 pm

1 stop8h 30m

Santa Ana J. Wayne/Orange Cnty

Fri 10/24

1:06 pm-9:04 pm

1 stop5h 58m

$158

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 9/26

7:55 pm-12:13 pm

1 stop18h 18m

Santa Ana J. Wayne/Orange Cnty

Tue 9/30

12:58 pm-9:06 am

1 stop18h 08m

$242

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Sat 9/13

4:58 pm-10:05 pm

1 stop7h 07m

Santa Ana J. Wayne/Orange Cnty

Thu 9/18

1:00 pm-1:53 pm

1 stop22h 53m

$249

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 9/5

7:55 pm-12:13 pm

1 stop18h 18m

Santa Ana J. Wayne/Orange Cnty

Tue 9/16

12:58 pm-9:06 am

1 stop18h 08m

$251

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Tue 11/4

7:52 pm-11:16 am

1 stop17h 24m

Santa Ana J. Wayne/Orange Cnty

Sat 11/8

2:20 pm-9:07 am

1 stop16h 47m

$251

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Sat 9/27

7:55 pm-11:07 am

1 stop17h 12m

Santa Ana J. Wayne/Orange Cnty

Tue 9/30

12:58 pm-9:06 am

1 stop18h 08m

$252

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 10/8

7:52 pm-12:21 pm

2 stops42h 29m

Santa Ana J. Wayne/Orange Cnty

Fri 10/17

1:06 pm-3:56 pm

1 stop24h 50m

$252

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Fri 9/5

7:55 pm-12:13 pm

1 stop18h 18m

Santa Ana J. Wayne/Orange Cnty

Mon 9/8

11:52 am-9:06 am

1 stop19h 14m

$256

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 10/20

12:38 pm-7:08 pm

1 stop8h 30m

$84

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Tue 9/9

7:55 pm-12:13 pm

1 stop18h 18m

$86

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 18 results
1
2

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?

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 August 8, 2025.

The best time to book flights from St. Louis to Santa Ana is 11 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to Santa Ana?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Santa Ana (average of $298). Flying from St. Louis to Santa Ana in March is currently the most expensive (average of $377). 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 August 14, 2025.

One of the essential ways to save on airfare from St. Louis to Santa Ana 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 56% 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 August 14, 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
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

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
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

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
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

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
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

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
3,217 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

Food

7.0

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.

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

    Cheapflights users have booked flights from St. Louis to Santa Ana round-trip from $145. Other airlines that can offer you cheap pricing are Delta, from $286, and United Airlines, from $322. These flights start at 66% lower than the current average price 3 months from now.

  • 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?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Santa Ana (average of $298). Flying from St. Louis to Santa Ana in March is currently the most expensive (average of $377). 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$145Average$218FlexibilityNo cancel feeOn-time62%
DeltaCheapest$286Average$366FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$322Average$433FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$332Average$449FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$342Average$446FlexibilityNo cancel feeOn-time71%

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