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Cheap flights from Santa Ana to St. Louis from $82

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 to St. Louis departing on 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Santa Ana to St. Louis (SNA-STL)

Cheap round-trip flights

Frontier Logo
7:16 pm - 8:40 pmSNA-STL
23h 24m1 stop
Frontier Logo
7:55 pm - 12:13 pmSTL-SNA
18h 18m1 stop
$169Frontier
Find Deal
Thu, Sep 11 - Tue, Sep 16
Frontier Logo
12:58 pm - 9:06 amSNA-STL
18h 08m1 stop
Frontier Logo
7:55 pm - 12:13 pmSTL-SNA
18h 18m1 stop
$175Frontier
Find Deal
Wed, Sep 10 - Mon, Sep 15
Logo
6:45 am - 8:44 pmSNA-STL
11h 59m1 stop
Logo
4:58 pm - 10:05 pmSTL-SNA
7h 07m1 stop
$206
Find Deal
Mon, Sep 8 - Sat, Sep 13
Logo
12:58 pm - 9:06 amSNA-STL
18h 08m1 stop
Logo
7:55 pm - 12:05 pmSTL-SNA
18h 10m2 stops
$210
Find Deal
Tue, Sep 16 - Wed, Sep 17
American Airlines Logo
10:28 am - 8:15 pmSNA-STL
7h 47m1 stop
American Airlines Logo
5:18 am - 9:38 amSTL-SNA
6h 20m1 stop
$306American Airlines
Find Deal
Tue, Sep 16 - Thu, Sep 18
Delta Logo
9:20 pm - 8:14 amSNA-STL
8h 54m1 stop
Delta Logo
5:30 pm - 10:22 pmSTL-SNA
6h 52m1 stop
$315Delta
Find Deal
Thu, Sep 11 - Sat, Sep 13
Southwest Logo
6:45 am - 5:40 pmSNA-STL
8h 55m2 stops
Southwest Logo
8:25 am - 6:35 pmSTL-SNA
12h 10m2 stops
$322Southwest
Find Deal
Wed, Sep 24 - Sat, Sep 27
Southwest Logo
3:10 pm - 11:10 pmSNA-STL
6h 00m1 stop
Southwest Logo
6:00 am - 11:00 amSTL-SNA
7h 00m1 stop
$336Southwest
Find Deal
Thu, Dec 25 - Wed, Dec 31
American Airlines Logo
10:23 am - 8:26 pmSNA-STL
8h 03m1 stop
American Airlines Logo
2:08 pm - 8:43 pmSTL-SNA
8h 35m1 stop
$338American Airlines
Find Deal
Tue, Oct 21 - Thu, Nov 20
Delta Logo
6:55 pm - 8:37 amSNA-STL
11h 42m2 stops
Delta Logo
6:01 am - 11:03 amSTL-SNA
7h 02m1 stop
$370Delta
Find Deal
Thu, Sep 11 - Sat, Sep 13

Frontier flights from Santa Ana to St. Louis

Our best Frontier deals on Santa Ana to St. Louis flight tickets
Frontier
Sep 11
SNA7:16 pmSanta Ana J. Wayne/Orange Cnty
23h 24m
1 stop
STL8:40 pmLambert-St Louis
Sep 16
STL7:55 pmLambert-St Louis
18h 18m
1 stop
SNA12:13 pmSanta Ana J. Wayne/Orange Cnty
$169
Find similar
Frontier
Sep 10
SNA12:58 pmSanta Ana J. Wayne/Orange Cnty
18h 08m
1 stop
STL9:06 amLambert-St Louis
Sep 15
STL7:55 pmLambert-St Louis
18h 18m
1 stop
SNA12:13 pmSanta Ana J. Wayne/Orange Cnty
$175
Find similar
Frontier
Oct 24
SNA2:35 pmSanta Ana J. Wayne/Orange Cnty
16h 32m
2 stops
STL9:07 amLambert-St Louis
Oct 27
STL12:38 pmLambert-St Louis
8h 30m
1 stop
SNA7:08 pmSanta Ana J. Wayne/Orange Cnty
$193
Find similar

Southwest flights from Santa Ana to St. Louis

Our best Southwest deals on Santa Ana to St. Louis flight tickets
Southwest
Sep 24
SNA6:45 amSanta Ana J. Wayne/Orange Cnty
8h 55m
2 stops
STL5:40 pmLambert-St Louis
Sep 27
STL8:25 amLambert-St Louis
12h 10m
2 stops
SNA6:35 pmSanta Ana J. Wayne/Orange Cnty
$322
Find similar
Southwest
Dec 25
SNA3:10 pmSanta Ana J. Wayne/Orange Cnty
6h 00m
1 stop
STL11:10 pmLambert-St Louis
Dec 31
STL6:00 amLambert-St Louis
7h 00m
1 stop
SNA11:00 amSanta Ana J. Wayne/Orange Cnty
$336
Find similar
Southwest
Dec 25
SNA7:30 amSanta Ana J. Wayne/Orange Cnty
7h 50m
2 stops
STL5:20 pmLambert-St Louis
Dec 31
STL6:00 amLambert-St Louis
7h 00m
1 stop
SNA11:00 amSanta Ana J. Wayne/Orange Cnty
$341
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Santa Ana 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 August 18, 2025.
Use the filters below to find and compare flights from Santa Ana 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

Thu 9/11

7:16 pm-8:40 pm

1 stop23h 24m

Lambert-St Louis

Tue 9/16

7:55 pm-12:13 pm

1 stop18h 18m

$169

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 9/10

12:58 pm-9:06 am

1 stop18h 08m

Lambert-St Louis

Mon 9/15

7:55 pm-12:13 pm

1 stop18h 18m

$175

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Mon 9/8

6:45 am-8:44 pm

1 stop11h 59m

Lambert-St Louis

Sat 9/13

4:58 pm-10:05 pm

1 stop7h 07m

$206

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 9/16

12:58 pm-9:06 am

1 stop18h 08m

Lambert-St Louis

Wed 9/17

7:55 pm-12:05 pm

2 stops18h 10m

$210

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 9/16

10:28 am-8:15 pm

1 stop7h 47m

Lambert-St Louis

Thu 9/18

5:18 am-9:38 am

1 stop6h 20m

$306

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 9/11

9:20 pm-8:14 am

1 stop8h 54m

Lambert-St Louis

Sat 9/13

5:30 pm-10:22 pm

1 stop6h 52m

$315

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 9/24

6:45 am-5:40 pm

2 stops8h 55m

Lambert-St Louis

Sat 9/27

8:25 am-6:35 pm

2 stops12h 10m

$322

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 12/25

3:10 pm-11:10 pm

1 stop6h 00m

Lambert-St Louis

Wed 12/31

6:00 am-11:00 am

1 stop7h 00m

$336

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 10/21

10:23 am-8:26 pm

1 stop8h 03m

Lambert-St Louis

Thu 11/20

2:08 pm-8:43 pm

1 stop8h 35m

$338

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Thu 9/11

6:55 pm-8:37 am

2 stops11h 42m

Lambert-St Louis

Sat 9/13

6:01 am-11:03 am

1 stop7h 02m

$370

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 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 to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $401. The month of July is another great option to travel to St. Louis, with average flight prices from Santa Ana averaging around $411.

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 Tuesday when prices can be found for as low as $385. 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 Saturday because tickets tend to average around $449. 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 in the evening is the least expensive time of day to depart. momondo users have found prices as low as $396 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 $427 per ticket.

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

As of August 2025, prices for Santa Ana to St. Louis flights are approximately 111% more expensive when compared to flights at the same time last year.

When to book flights from Santa Ana to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Santa Ana 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 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 to St. Louis

Best Price Found

$82

Fastest flight time

5h 33m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Santa Ana in the past 72 hours is $82. The best round-trip flight deal from Santa Ana to St. Louis found on momondo in the last 72 hours is $169.
The fastest flight from Santa Ana to St. Louis takes 5h 33m
There are no direct flights from Santa Ana to St. Louis. Popular non-direct route for this connection is Santa Ana J. Wayne/Orange Cnty Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
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 52m.

  • 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 to St. Louis?

Best airlines flying from Santa Ana to St. Louis

Compare and see reviews for airlines that fly from Santa Ana to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $138Free CancellationRating
5.8
3,212 reviews
Search Frontier flights
DeltaPriceFrom $248Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $326Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
United AirlinesPriceFrom $352Free CancellationRating
7.4
8,925 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Fenton
Wentzville
Collinsville
Alton
St. Peters
Farmington
Festus
Glencoe
Eureka
Clayton
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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