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Cheap flights from St. Louis to Los Angeles from $137

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Los Angeles departing on 7/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:03 pm - 12:31 pm
STL
-
SNA
19h 28m
1 stop
Frontier Logo
4:13 pm - 6:15 pm
SNA
-
STL
24h 02m
1 stop
$211Frontier
Wed, Jul 29 - Wed, Aug 5
Multiple Airlines Logo
6:45 pm - 3:01 pm
STL
-
SNA
22h 16m
1 stop
Multiple Airlines Logo
7:53 pm - 5:50 pm
SNA
-
STL
19h 57m
1 stop
$214Multiple Airlines
Mon, Aug 24 - Mon, Aug 31
Frontier Logo
7:10 pm - 12:31 pm
STL
-
SNA
19h 21m
1 stop
Frontier Logo
7:53 pm - 6:05 pm
SNA
-
STL
20h 12m
1 stop
$223Frontier
Thu, Jul 23 - Mon, Jul 27
Multiple Airlines Logo
7:10 pm - 4:15 pm
STL
-
SNA
23h 05m
1 stop
Multiple Airlines Logo
4:13 pm - 6:15 pm
SNA
-
STL
24h 02m
1 stop
$240Multiple Airlines
Thu, Jul 30 - Wed, Aug 5
Multiple Airlines Logo
6:45 pm - 11:23 am
STL
-
SNA
42h 38m
2 stops
Multiple Airlines Logo
7:53 pm - 5:50 pm
SNA
-
STL
19h 57m
1 stop
$258Multiple Airlines
Mon, Aug 24 - Mon, Aug 31
Multiple Airlines Logo
4:57 pm - 2:32 pm
STL
-
SNA
23h 35m
2 stops
Multiple Airlines Logo
4:13 pm - 6:15 pm
SNA
-
STL
24h 02m
1 stop
$260Multiple Airlines
Wed, Jul 29 - Wed, Aug 5
Frontier Logo
7:03 pm - 12:31 pm
STL
-
SNA
19h 28m
1 stop
Frontier Logo
4:13 pm - 6:15 pm
SNA
-
STL
24h 02m
1 stop
$264Frontier
Wed, Jul 29 - Wed, Aug 5
Multiple Airlines Logo
6:45 pm - 2:48 pm
STL
-
SNA
22h 03m
1 stop
Multiple Airlines Logo
7:30 am - 5:50 pm
SNA
-
STL
8h 20m
1 stop
$269Multiple Airlines
Fri, Aug 21 - Sat, Aug 29
Multiple Airlines Logo
6:45 pm - 9:51 am
STL
-
SNA
41h 06m
2 stops
Multiple Airlines Logo
7:45 am - 5:50 pm
SNA
-
STL
8h 05m
1 stop
$274Multiple Airlines
Tue, Aug 18 - Sun, Aug 23
Multiple Airlines Logo
4:57 pm - 2:51 pm
STL
-
SNA
23h 54m
2 stops
Multiple Airlines Logo
4:13 pm - 6:15 pm
SNA
-
STL
24h 02m
1 stop
$275Multiple Airlines
Sat, Aug 1 - Wed, Aug 5

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Frontier flights from St. Louis to Santa Ana, California

Our best Frontier deals on St. Louis to Santa Ana, California flight tickets
Frontier
Jul 29
STL7:03 pmLambert-St Louis
19h 28m
1 stop
SNA12:31 pmSanta Ana J. Wayne/Orange Cnty
Aug 5
SNA4:13 pmSanta Ana J. Wayne/Orange Cnty
24h 02m
1 stop
STL6:15 pmLambert-St Louis
$211
Frontier
Jul 23
STL7:10 pmLambert-St Louis
19h 21m
1 stop
SNA12:31 pmSanta Ana J. Wayne/Orange Cnty
Jul 27
SNA7:53 pmSanta Ana J. Wayne/Orange Cnty
20h 12m
1 stop
STL6:05 pmLambert-St Louis
$223
Frontier
Jul 29
STL7:03 pmLambert-St Louis
19h 28m
1 stop
SNA12:31 pmSanta Ana J. Wayne/Orange Cnty
Aug 5
SNA4:13 pmSanta Ana J. Wayne/Orange Cnty
24h 02m
1 stop
STL6:15 pmLambert-St Louis
$264

United Airlines flights from St. Louis to Santa Ana, California

Our best United Airlines deals on St. Louis to Santa Ana, California flight tickets
United Airlines
Jul 1
STL9:06 amLambert-St Louis
5h 45m
1 stop
SNA12:51 pmSanta Ana J. Wayne/Orange Cnty
Jul 8
SNA10:20 amSanta Ana J. Wayne/Orange Cnty
8h 23m
1 stop
STL8:43 pmLambert-St Louis
$504
United Airlines
Jul 1
STL5:10 amLambert-St Louis
8h 56m
2 stops
SNA12:06 pmSanta Ana J. Wayne/Orange Cnty
Jul 4
SNA8:45 amSanta Ana J. Wayne/Orange Cnty
10h 41m
2 stops
STL9:26 pmLambert-St Louis
$525
United Airlines
Jul 1
STL6:14 amLambert-St Louis
6h 45m
1 stop
SNA10:59 amSanta Ana J. Wayne/Orange Cnty
Jul 9
SNA7:45 amSanta Ana J. Wayne/Orange Cnty
7h 57m
1 stop
STL5:42 pmLambert-St Louis
$572

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Santa Ana, California 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, momondo users made 832,500 searches. Data last updated June 20, 2026.
Use the filters below to find and compare flights from St. Louis to Santa Ana, California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 7/29

7:03 pm-12:31 pm

1 stop19h 28m

Santa Ana J. Wayne/Orange Cnty

Wed 8/5

4:13 pm-6:15 pm

1 stop24h 02m

$211

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 8/24

6:45 pm-3:01 pm

1 stop22h 16m

Santa Ana J. Wayne/Orange Cnty

Mon 8/31

7:53 pm-5:50 pm

1 stop19h 57m

$214

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 7/23

7:10 pm-12:31 pm

1 stop19h 21m

Santa Ana J. Wayne/Orange Cnty

Mon 7/27

7:53 pm-6:05 pm

1 stop20h 12m

$223

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Thu 7/30

7:10 pm-4:15 pm

1 stop23h 05m

Santa Ana J. Wayne/Orange Cnty

Wed 8/5

4:13 pm-6:15 pm

1 stop24h 02m

$240

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Mon 8/24

6:45 pm-11:23 am

2 stops42h 38m

Santa Ana J. Wayne/Orange Cnty

Mon 8/31

7:53 pm-5:50 pm

1 stop19h 57m

$258

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 7/29

4:57 pm-2:32 pm

2 stops23h 35m

Santa Ana J. Wayne/Orange Cnty

Wed 8/5

4:13 pm-6:15 pm

1 stop24h 02m

$260

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Wed 7/29

7:03 pm-12:31 pm

1 stop19h 28m

Santa Ana J. Wayne/Orange Cnty

Wed 8/5

4:13 pm-6:15 pm

1 stop24h 02m

$264
Quickest 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

Sat 8/29

7:30 am-5:50 pm

1 stop8h 20m

$269

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Tue 8/18

6:45 pm-9:51 am

2 stops41h 06m

Santa Ana J. Wayne/Orange Cnty

Sun 8/23

7:45 am-5:50 pm

1 stop8h 05m

$274

St. LouisSanta Ana

STL - SNA

STLSNA

Lambert-St Louis

Sat 8/1

4:57 pm-2:51 pm

2 stops23h 54m

Santa Ana J. Wayne/Orange Cnty

Wed 8/5

4:13 pm-6:15 pm

1 stop24h 02m

$275

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from St. Louis to Santa Ana, California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Santa Ana, California?

What is the cheapest month to fly to Santa Ana, California?

In general, November is the cheapest month to fly from St. Louis to Santa Ana, California. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $345. If you aren’t able to travel during the month of November, then book flights to Santa Ana, California from St. Louis during April instead. Flights to Santa Ana, California in April, while not as cheap as those in November, still average around $349.

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

You are more likely to see cheaper flights to Santa Ana, California from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Santa Ana, California for around $463 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santa Ana, California from St. Louis for as low as $300 on momondo.

How have St. Louis to Santa Ana, California flight prices changed over time?

As of June 2026, prices for St. Louis to Santa Ana, California flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Santa Ana, California

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Santa Ana, California according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Santa Ana, California (STL to SNA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Santa Ana, California

Fastest flight time

6h 04m

Direct flights

None
The fastest flight from St. Louis to Santa Ana, California takes 6h 04m
There are no direct flights from St. Louis to Santa Ana, California. There are no popular flight routes from St. Louis to Santa Ana, California.
Search flight deals

Frequently asked questions about flying from St. Louis to Santa Ana, California

  • How far is Lambert-St Louis to Santa Ana J. Wayne/Orange Cnty by plane?

    Lambert-St Louis and Santa Ana J. Wayne/Orange Cnty are 1572.0 mi apart from one another. A reasonable flight in good conditions will take 6h 04m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Santa Ana J. Wayne/Orange Cnty Airport?

    Prices for flights from Lambert-St Louis Airport to Santa Ana J. Wayne/Orange Cnty Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Santa Ana J. Wayne/Orange Cnty Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Santa Ana J. Wayne/Orange Cnty Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Santa Ana J. Wayne/Orange Cnty Airport.

  • What documentation or ID do you need to fly to Santa Ana J. Wayne/Orange Cnty Airport?

    The travel and health documents you'll need for your trip to Santa Ana J. Wayne/Orange Cnty Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santa Ana J. Wayne/Orange Cnty Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Santa Ana, California?

Best airlines flying from St. Louis to Santa Ana, California

Compare and see reviews for airlines that fly from St. Louis to Santa Ana, California with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $159Free CancellationRating
5.6
2,877 reviews
Search Frontier flights
American AirlinesPriceFrom $278Free CancellationRating
7.1
11,714 reviews
Search American Airlines flights
SouthwestPriceFrom $316Free CancellationRating
7.9
4,241 reviews
Search Southwest flights
United AirlinesPriceFrom $332Free CancellationRating
7.4
9,864 reviews
Search United Airlines flights

Traveling to a place near Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
Anaheim
Tustin

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Santa Ana?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Santa Ana. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Santa Ana with flexible booking policies on momondo?

All flight searches from St. Louis to Santa Ana on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Santa Ana?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Santa Ana from St. Louis.

I’m not ready to book a flight from St. Louis to Santa Ana right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Santa Ana from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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