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St. Louis

$72+ Cheap flights from Orange County to St. Louis (STL)

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SNA — STL
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Orange County to St. Louis

Keep the following information in mind while searching for Orange County to St. Louis flight deals. Data was last updated September 16, 2025.

Round-trip from

$144
(Frontier)

One-way from

$72
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$389
From Orange County to Lambert-St Louis
Search Deals
One-way flight from Orange County to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Orange County to St. Louis

Cheapest flights from Orange County to St. Louis
Explore the most affordable flight options available from Orange County to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:35 pmSNA - STL
1 stop5h 39mFrontier
Mon 10/2712:38 pmSTL - SNA
1 stop8h 30mFrontier
Deal found 9/14$144
This Booking.com deal was found by Cheapflights users on 9/16. 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.
Fri 11/1412:01 pmSNA - STL
1 stop19h 06mFrontier
Mon 11/177:45 pmSTL - SNA
1 stop19h 50mFrontier
Deal found 9/16$156
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Thu 11/135:46 pmSNA - STL
1 stop18h 11mMultiple Airlines
Mon 11/172:42 pmSTL - SNA
1 stop8h 17mMultiple Airlines
Deal found 9/15$158
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/102:35 pmSNA - STL
1 stop5h 39mFrontier
Mon 10/1312:38 pmSTL - SNA
1 stop8h 30mFrontier
Deal found 9/14$188
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 11/42:20 pmSNA - STL
1 stop16h 47mFrontier
Wed 11/57:45 pmSTL - SNA
1 stop17h 31mFrontier
Deal found 9/16$192
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 11/42:20 pmSNA - STL
1 stop16h 47mFrontier
Fri 11/77:45 pmSTL - SNA
1 stop19h 50mFrontier
Deal found 9/16$197
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 11/42:20 pmSNA - STL
1 stop16h 47mMultiple Airlines
Thu 11/66:22 pmSTL - SNA
2 stops24h 29mMultiple Airlines
Deal found 9/16$204
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Tue 11/42:20 pmSNA - STL
1 stop16h 47mMultiple Airlines
Fri 11/72:12 pmSTL - SNA
2 stops28h 39mMultiple Airlines
Deal found 9/16$211
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Mon 11/312:01 pmSNA - STL
1 stop19h 06mFrontier
Wed 11/57:45 pmSTL - SNA
1 stop17h 31mFrontier
Deal found 9/16$214
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 11/52:20 pmSNA - STL
1 stop16h 47mFrontier
Fri 11/77:45 pmSTL - SNA
1 stop19h 50mFrontier
Deal found 9/16$217
This Southwest deal was found by Cheapflights users on 9/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/187:35 amLGB - STL
Nonstop3h 30mSouthwest
Mon 10/205:30 amSTL - LGB
1 stop6h 10mSouthwest
Deal found 9/16$295
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/212:20 pmLGB - STL
2 stops7h 50mSouthwest
Tue 10/2812:25 pmSTL - LGB
Nonstop3h 55mSouthwest
Deal found 9/14$300

Cheapflights Fare Finder

 
Customize your flight search to find flights from Orange County 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, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Orange County to St. Louis that are best for you.

Fly from

Orange County

Fly to

St. Louis

Route

Depart

Return

Price

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 10/24

2:35 pm-10:14 pm

1 stop5h 39m

Lambert-St Louis

Mon 10/27

12:38 pm-7:08 pm

1 stop8h 30m

$144

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Mon 10/27

12:01 pm-9:07 am

1 stop19h 06m

Lambert-St Louis

Thu 10/30

8:40 pm-11:16 am

1 stop16h 36m

$220

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 11/4

8:09 pm-9:07 am

2 stops10h 58m

Lambert-St Louis

Wed 11/5

7:45 pm-11:16 am

1 stop17h 31m

$222

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Mon 11/3

4:49 pm-9:07 am

2 stops14h 18m

Lambert-St Louis

Wed 11/5

7:45 pm-11:16 am

1 stop17h 31m

$222

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 11/4

2:20 pm-9:07 am

1 stop16h 47m

Lambert-St Louis

Thu 11/6

7:45 pm-11:16 am

1 stop17h 31m

$224

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Mon 11/3

12:01 pm-9:07 am

1 stop19h 06m

Lambert-St Louis

Fri 11/7

7:45 pm-6:26 pm

2 stops48h 41m

$233

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 11/5

2:20 pm-9:07 am

1 stop16h 47m

Lambert-St Louis

Thu 11/6

7:45 pm-11:16 am

1 stop17h 31m

$244

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Mon 11/3

12:01 pm-9:07 am

1 stop19h 06m

Lambert-St Louis

Thu 11/6

7:45 pm-11:16 am

1 stop17h 31m

$246

Long BeachSt. Louis

LGB - STL

LGBSTL

Long Beach Municipal

Tue 10/21

3:50 pm-12:30 am

1 stop6h 40m

Lambert-St Louis

Tue 10/28

12:25 pm-2:20 pm

Nonstop3h 55m

$295

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Fri 10/3

11:52 am-9:06 am

1 stop19h 14m

Lambert-St Louis

Sun 10/5

7:55 pm-10:03 pm

2 stops28h 08m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 34 results
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Best time to book a flight from Orange County to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Orange County 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 Orange County to St. Louis

What is the cheapest month to book a flight from Orange County to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Orange County to St. Louis (average of $311). Flying from Orange County to St. Louis in March is currently the most expensive (average of $356). 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 KFI to STL?

Find hourly flight availability from Orange County to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Orange County to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated September 16, 2025.
Read through reviews of airlines operating flights from Orange County to St. Louis, such as Southwest, Delta, and United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
4,242 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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 Orange County to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Orange County?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to St. Louis from Orange County.

  • How long is the flight from Orange County to St. Louis?

    Frontier, Southwest, and Delta can get you from Orange County to St. Louis in just under 5h 32m. Your travel time can differ by up to 1h 08m. The distance between Orange County and St. Louis is about 1577 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Orange County to St. Louis?

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

  • Can I find deals for business class flights from Orange County to St. Louis?

    Yes. Cheapflights offers flight deals from Orange County to St. Louis 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 Orange County to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Orange County to St. Louis (average of $311). Flying from Orange County to St. Louis in March is currently the most expensive (average of $356). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Orange County to St. Louis

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Top 5 airlines flying from Orange County to St. Louis

Discover the top 5 airlines that operate flights from Orange County to St. Louis. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$300FlexibilityNo cancel feeOn-time62%
DeltaCheapest$248Average$490FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$311Average$471FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$311Average$451FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$326Average$424FlexibilityNo cancel feeOn-time71%

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