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Cheap flights from Santa Ana, California to St. Louis from $92

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Santa Ana, California to St. Louis departing on 2/23. 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
0 bags

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Find the cheapest flights from Santa Ana, California to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:02 pm - 5:46 pm
SNA
-
STL
23h 44m1 stop
Frontier Logo
2:51 pm - 10:37 am
STL
-
SNA
21h 46m1 stop
$174Frontier
Fri, Feb 20 - Sat, Feb 28
Multiple Airlines Logo
6:45 am - 8:48 pm
SNA
-
STL
12h 03m1 stop
Multiple Airlines Logo
9:32 pm - 8:57 pm
STL
-
SNA
25h 25m1 stop
$185Multiple Airlines
Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
4:37 pm - 9:06 pm
SNA
-
STL
26h 29m1 stop
Multiple Airlines Logo
9:32 pm - 3:42 pm
STL
-
SNA
20h 10m1 stop
$186Multiple Airlines
Wed, Jan 28 - Sun, Feb 1
Frontier Logo
4:02 pm - 5:46 pm
SNA
-
STL
23h 44m1 stop
Frontier Logo
2:51 pm - 8:48 am
STL
-
SNA
19h 57m2 stops
$190Frontier
Fri, Feb 20 - Sat, Feb 28
Multiple Airlines Logo
6:45 am - 8:48 pm
SNA
-
STL
12h 03m1 stop
Multiple Airlines Logo
9:32 pm - 2:11 pm
STL
-
SNA
18h 39m2 stops
$218Multiple Airlines
Fri, Feb 6 - Sun, Feb 8
Frontier Logo
5:31 pm - 12:40 pm
SNA
-
STL
17h 09m1 stop
Frontier Logo
3:46 pm - 11:32 am
STL
-
SNA
21h 46m1 stop
$238Frontier
Sun, Jan 18 - Sat, Jan 31
Frontier Logo
1:22 pm - 8:48 pm
SNA
-
STL
5h 26m1 stop
Frontier Logo
9:32 pm - 6:01 pm
STL
-
SNA
22h 29m1 stop
$253Frontier
Fri, Feb 6 - Sun, Feb 8
Frontier Logo
11:37 am - 10:02 am
SNA
-
STL
20h 25m1 stop
Frontier Logo
10:01 pm - 12:37 pm
STL
-
SNA
16h 36m1 stop
$255Frontier
Thu, Jan 8 - Thu, Jan 22
Frontier Logo
10:30 am - 8:07 pm
SNA
-
STL
7h 37m1 stop
Frontier Logo
1:07 pm - 6:50 pm
STL
-
SNA
7h 43m1 stop
$274Frontier
Mon, Jan 5 - Thu, Jan 8
Delta Logo
11:15 am - 11:25 pm
SNA
-
STL
10h 10m2 stops
Delta Logo
6:10 am - 4:34 pm
STL
-
SNA
12h 24m2 stops
$276Delta
Thu, Jan 22 - Tue, Jan 27

Southwest flights from Santa Ana, California to St. Louis

Our best Southwest deals on Santa Ana, California to St. Louis flight tickets
Southwest
Jan 28
SNA9:00 amSanta Ana J. Wayne/Orange Cnty
8h 15m
2 stops
STL7:15 pmLambert-St Louis
Feb 1
STL2:25 pmLambert-St Louis
9h 20m
2 stops
SNA9:45 pmSanta Ana J. Wayne/Orange Cnty
$410
Find similar
Southwest
Apr 10
SNA10:25 amSanta Ana J. Wayne/Orange Cnty
8h 30m
2 stops
STL8:55 pmLambert-St Louis
Apr 12
STL4:25 pmLambert-St Louis
7h 30m
2 stops
SNA9:55 pmSanta Ana J. Wayne/Orange Cnty
$543
Find similar
Southwest
Jan 6
SNA9:00 amSanta Ana J. Wayne/Orange Cnty
6h 10m
2 stops
STL5:10 pmLambert-St Louis
Jan 9
STL10:15 amLambert-St Louis
9h 40m
2 stops
SNA5:55 pmSanta Ana J. Wayne/Orange Cnty
$595
Find similar

Frontier flights from Santa Ana, California to St. Louis

Our best Frontier deals on Santa Ana, California to St. Louis flight tickets
Frontier
Feb 20
SNA4:02 pmSanta Ana J. Wayne/Orange Cnty
23h 44m
1 stop
STL5:46 pmLambert-St Louis
Feb 28
STL2:51 pmLambert-St Louis
21h 46m
1 stop
SNA10:37 amSanta Ana J. Wayne/Orange Cnty
$174
Find similar
Frontier
Feb 20
SNA4:02 pmSanta Ana J. Wayne/Orange Cnty
23h 44m
1 stop
STL5:46 pmLambert-St Louis
Feb 28
STL2:51 pmLambert-St Louis
19h 57m
2 stops
SNA8:48 amSanta Ana J. Wayne/Orange Cnty
$190
Find similar
Frontier
Jan 4
SNA7:57 pmSanta Ana J. Wayne/Orange Cnty
23h 28m
1 stop
STL9:25 pmLambert-St Louis
Jan 10
STL7:43 pmLambert-St Louis
17h 09m
1 stop
SNA10:52 amSanta Ana J. Wayne/Orange Cnty
$238
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Santa Ana, California to St. Louis 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 December 26, 2025.
Use the filters below to find and compare flights from Santa Ana, California to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 2/20

4:02 pm-5:46 pm

1 stop23h 44m

Lambert-St Louis

Sat 2/28

2:51 pm-10:37 am

1 stop21h 46m

$174

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 2/6

6:45 am-8:48 pm

1 stop12h 03m

Lambert-St Louis

Sun 2/8

9:32 pm-8:57 pm

1 stop25h 25m

$185

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 1/28

4:37 pm-9:06 pm

1 stop26h 29m

Lambert-St Louis

Sun 2/1

9:32 pm-3:42 pm

1 stop20h 10m

$186

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 2/20

4:02 pm-5:46 pm

1 stop23h 44m

Lambert-St Louis

Sat 2/28

2:51 pm-8:48 am

2 stops19h 57m

$190

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 2/6

6:45 am-8:48 pm

1 stop12h 03m

Lambert-St Louis

Sun 2/8

9:32 pm-2:11 pm

2 stops18h 39m

$218

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Sun 1/18

5:31 pm-12:40 pm

1 stop17h 09m

Lambert-St Louis

Sat 1/31

3:46 pm-11:32 am

1 stop21h 46m

$238

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 2/6

1:22 pm-8:48 pm

1 stop5h 26m

Lambert-St Louis

Sun 2/8

9:32 pm-6:01 pm

1 stop22h 29m

$253

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 1/8

11:37 am-10:02 am

1 stop20h 25m

Lambert-St Louis

Thu 1/22

10:01 pm-12:37 pm

1 stop16h 36m

$255

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Mon 1/5

10:30 am-8:07 pm

1 stop7h 37m

Lambert-St Louis

Thu 1/8

1:07 pm-6:50 pm

1 stop7h 43m

$274

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 1/22

11:15 am-11:25 pm

2 stops10h 10m

Lambert-St Louis

Tue 1/27

6:10 am-4:34 pm

2 stops12h 24m

$276

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Santa Ana, California to St. Louis

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 cheapest month to fly to St. Louis?

In general, October is the cheapest month to fly from Santa Ana, California to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $329. The month of August is another great option to travel to St. Louis, with average flight prices from Santa Ana, California averaging around $374.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Thursday when prices can be found for as low as $388. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $429. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Santa Ana, California in the evening is the least expensive time of day to depart. momondo users have found prices as low as $355 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $414 per ticket.

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

As of December 2025, prices for Santa Ana, California to St. Louis flights are approximately 83% more expensive when compared to flights at the same time last year.

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

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

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

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

Fastest flight time

5h 26m

Direct flights

None
The fastest flight from Santa Ana, California to St. Louis takes 5h 26m
There are no direct flights from Santa Ana, California to St. Louis. There are no popular flight routes from Santa Ana, California to St. Louis.
Search flight deals

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

    The straight-line distance from Santa Ana J. Wayne/Orange Cnty to Lambert-St Louis is 1572.0 mi. By plane, this route typically takes 5h 26m.

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

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

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

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Compare and see reviews for airlines that fly from Santa Ana, California to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.8
3,070 reviews
Search Frontier flights
DeltaPriceFrom $248Free CancellationRating
7.9
8,013 reviews
Search Delta flights
American AirlinesPriceFrom $278Free CancellationRating
7.2
11,062 reviews
Search American Airlines flights
SouthwestPriceFrom $306Free CancellationRating
8.0
4,258 reviews
Search Southwest flights
United AirlinesPriceFrom $311Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
Fenton
St. Peters
Wentzville
Collinsville
Alton
Farmington
Clayton
Festus
Glencoe
Eureka
Edwardsville
Litchfield
Shrewsbury

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Santa Ana to St. Louis for you.

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

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

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

momondo provides multiple filters to help you find the best flight to St. Louis from Santa Ana. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Santa Ana to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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