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St. Louis

$139+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
SNA — STL
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
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 June 18, 2025.

Round-trip from

$279
(American Airlines)

One-way from

$139
(Netflights)

Popular in

December

Cheapest in

August

Average price

$449
From Orange County to Lambert-St Louis
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One-way flight from Orange County to Lambert-St Louis
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Highest demand for flights based on searches. 6% potential increase in price ($28 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 June 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 June 18, 2025.

This American Airlines deal was found by Cheapflights users on 6/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:28 amSNA - STL
1 stop7h 47mAmerican Airlines
Wed 10/155:28 amSTL - SNA
1 stop8h 10mAmerican Airlines
Deal found 6/18$279
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2912:26 pmSNA - STL
2 stops20h 03mSpirit Airlines
Fri 8/110:47 amSTL - SNA
2 stops34h 16mSpirit Airlines
Deal found 6/16$294
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:05 pmSNA - STL
1 stop5h 38mDelta
Sat 7/57:00 amSTL - SNA
1 stop8h 25mDelta
Deal found 6/16$309
This Southwest deal was found by Cheapflights users on 6/18. 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.
Wed 9/246:45 amSNA - STL
2 stops8h 55mSouthwest
Sun 9/287:20 amSTL - SNA
1 stop6h 25mSouthwest
Deal found 6/18$334
This Mytrip deal was found by Cheapflights users on 6/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2912:26 pmSNA - STL
3 stops20h 03mMultiple Airlines
Fri 8/11:00 pmSTL - SNA
3 stops34h 21mMultiple Airlines
Deal found 6/16$339
This United Airlines deal was found by Cheapflights users on 6/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:50 amSNA - STL
1 stop7h 39mUnited Airlines
Tue 7/81:42 pmSTL - SNA
1 stop5h 56mUnited Airlines
Deal found 6/17$343
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/241:08 pmSNA - STL
2 stops23h 31mAlaska Airlines
Sun 9/286:30 pmSTL - SNA
1 stop17h 19mAlaska Airlines
Deal found 6/18$357
This Southwest deal was found by Cheapflights users on 6/17. 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 7/812:20 pmLGB - STL
Nonstop3h 30mSouthwest
Tue 7/1510:55 amSTL - LGB
Nonstop3h 50mSouthwest
Deal found 6/17$371
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/165:07 pmLGB - STL
2 stops14h 26mDelta
Wed 7/237:45 amSTL - LGB
1 stop6h 27mDelta
Deal found 6/16$386
This Gotogate deal was found by Cheapflights users on 6/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2911:56 amSNA - STL
1 stop19h 15mFrontier
Sat 8/27:29 pmSTL - SNA
1 stop17h 41mFrontier
Deal found 6/16$386

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 June 18, 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

Wed 10/1

10:28 am-8:15 pm

1 stop7h 47m

Lambert-St Louis

Wed 10/15

5:28 am-11:38 am

1 stop8h 10m

$279

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 7/29

12:26 pm-10:29 am

2 stops20h 03m

Lambert-St Louis

Fri 8/1

10:47 am-7:03 pm

2 stops34h 16m

$294

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 7/1

5:05 pm-12:43 am

1 stop5h 38m

Lambert-St Louis

Sat 7/5

7:00 am-1:25 pm

1 stop8h 25m

$309

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

Sun 9/28

7:20 am-11:45 am

1 stop6h 25m

$334

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 7/29

12:26 pm-10:29 am

3 stops20h 03m

Lambert-St Louis

Fri 8/1

1:00 pm-9:21 pm

3 stops34h 21m

$339

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 7/1

6:50 am-4:29 pm

1 stop7h 39m

Lambert-St Louis

Tue 7/8

1:42 pm-5:38 pm

1 stop5h 56m

$343

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Wed 9/24

1:08 pm-2:39 pm

2 stops23h 31m

Lambert-St Louis

Sun 9/28

6:30 pm-9:49 am

1 stop17h 19m

$357

Long BeachSt. Louis

LGB - STL

LGBSTL

Long Beach Municipal

Tue 7/8

12:20 pm-5:50 pm

Nonstop3h 30m

Lambert-St Louis

Tue 7/15

10:55 am-12:45 pm

Nonstop3h 50m

$371

Santa AnaSt. Louis

SNA - STL

SNASTL

Santa Ana J. Wayne/Orange Cnty

Tue 7/29

11:56 am-9:11 am

1 stop19h 15m

Lambert-St Louis

Sat 8/2

7:29 pm-11:10 am

1 stop17h 41m

$386

Long BeachSt. Louis

LGB - STL

LGBSTL

Long Beach Municipal

Wed 7/16

5:07 pm-9:33 am

2 stops14h 26m

Lambert-St Louis

Wed 7/23

7:45 am-12:12 pm

1 stop6h 27m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/18

Showing 1-10 of 22 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 June 18, 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 18, 2025.
Read through reviews of airlines operating flights from Orange County to St. Louis, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,964 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,507 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,810 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines to fly from Orange County to St. Louis one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $139. However, be on the lookout for offers from Delta and Spirit Airlines, as they are both options that can get you from Orange County to St. Louis for a low price.

  • 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 Orange County?

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

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Alternative routes for Orange County to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$228FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$342Average$463FlexibilityNo cancel feeOn-time71%
DeltaCheapest$346Average$490FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$352Average$474FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$483FlexibilityNo cancel feeOn-time63%

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