Irvine

$139+ Cheap flights from St. Louis (STL) to Irvine, CA

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
Dec 25 — Jan 11
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The best prices from Lambert-St Louis to Irvine are usually found in September or August, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from St. Louis to Irvine

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Irvine (IR9). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 20, 2024.

Round-trip from

$154
(Kiwi.com)

One-way from

$139
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$440
From Lambert-St Louis to Irvine
One-way flight from Lambert-St Louis to Irvine
High demand for flights, 2% potential price rise
Best time to find cheap flights, 1% potential price drop
Average for round-trip flights in December 2024

Find flight deals from St. Louis to Irvine

Cheapest flights from St. Louis to Irvine
Explore the most affordable flight options available from St. Louis to Irvine. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/239:29 pmSTL - LAX
1 stop17h 31mFrontier
Sat 1/49:31 pmLAX - STL
1 stop11h 39mFrontier
Deal found 12/19$248
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/252:15 pmSTL - LAX
1 stop6h 28mDelta
Wed 1/111:59 amLAX - STL
1 stop8h 07mDelta
Deal found 12/18$384
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:33 pmSTL - LAX
1 stop7h 02mUnited Airlines
Tue 1/76:00 amLAX - STL
1 stop10h 09mUnited Airlines
Deal found 12/18$510
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/257:04 amSTL - LAX
1 stop9h 02mAmerican Airlines
Sat 1/45:50 pmLAX - STL
Nonstop3h 37mAmerican Airlines
Deal found 12/18$569
This Orbitz deal was found by Cheapflights users on 12/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/197:00 amSTL - LAX
2 stops15h 57mMultiple Airlines
Thu 12/268:09 pmLAX - STL
1 stop10h 04mMultiple Airlines
Deal found 12/18$574
This Southwest deal was found by Cheapflights users on 12/19. 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 12/286:30 pmSTL - LAX
1 stop6h 00mSouthwest
Tue 12/314:35 pmLAX - STL
Nonstop3h 30mSouthwest
Deal found 12/19$592

Find flights from St. Louis to Irvine within your budget

Customize your flight search to find flights from St. Louis to Irvine 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 December 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 2/20

11:08 pm-9:40 am

1 stop12h 32m

Los Angeles

Sat 2/22

9:32 am-7:52 pm

1 stop8h 20m

$154

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Sat 1/25

7:09 pm-12:35 am

1 stop7h 26m

Los Angeles

Tue 1/28

7:55 pm-1:53 pm

2 stops15h 58m

$236

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Wed 2/19

6:00 am-1:50 pm

1 stop9h 50m

Los Angeles

Tue 2/25

11:05 am-9:33 pm

1 stop8h 28m

$318

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 2/20

3:48 pm-1:36 pm

2 stops23h 48m

Los Angeles

Mon 2/24

9:27 am-2:42 pm

3 stops27h 15m

$324

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 1/28

2:49 pm-9:31 am

2 stops20h 42m

Los Angeles

Fri 1/31

11:44 am-11:59 pm

1 stop10h 15m

$326

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 1/28

9:55 am-12:15 pm

Nonstop4h 20m

Los Angeles

Fri 1/31

11:35 am-5:10 pm

Nonstop3h 35m

$366

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Sat 2/1

6:03 am-8:21 am

Nonstop4h 18m

Los Angeles

Sat 2/8

8:15 am-4:23 pm

1 stop6h 08m

$375

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Mon 1/13

4:36 pm-7:19 am

2 stops16h 43m

Los Angeles

Tue 1/14

11:15 am-8:43 pm

1 stop7h 28m

$412

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 3/6

6:45 pm-9:40 am

1 stop16h 55m

$139

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Mon 2/24

5:15 pm-2:20 pm

2 stops23h 05m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 16 results
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Best time to book a flight from St. Louis to Irvine

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

Travel insights for flights from St. Louis to Irvine

Get recent, data-driven insights about flights from St. Louis to Irvine including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Irvine?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Irvine. Price data was last updated on December 13, 2024.

To ensure you get the cheapest price possible for a flight from St. Louis to Irvine, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Irvine (average of $246). Flying from St. Louis to Irvine in March is currently the most expensive (average of $344). 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 STL to IR9?

Find hourly flight availability from St. Louis to Irvine. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Irvine as you normally would.

What is the cheapest day to fly from St. Louis to Irvine?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Irvine. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Irvine flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Irvine by month

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

In terms of precipitation, rainfall in Irvine ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Irvine when rainfall is around 0.0 in.

Temperature in Irvine by month

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

If weather is an important factor for your trip to Irvine, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing Irvine

Get insights into the airlines that provide service to Irvine. 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 Irvine. Reviews last updated December 20, 2024.
See what other customers who have flown with Frontier, Delta and Alaska Airlines from St. Louis to Irvine have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,821 reviews

Boarding

8.2

Overall

8.1

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

8.1
Very good
4,821 reviews
8.1
Very good
4,821 reviews

Boarding

8.2

Overall

8.1

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

8.0
Very good
9,545 reviews
8.1
Very good
4,821 reviews

Boarding

8.2

Overall

8.1

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

8.0
Very good
8,600 reviews
8.1
Very good
4,821 reviews

Boarding

8.2

Overall

8.1

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

7.4
Good
9,043 reviews
8.1
Very good
4,821 reviews

Boarding

8.2

Overall

8.1

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

7.2
Good
10,000 reviews
8.1
Very good
4,821 reviews

Boarding

8.2

Overall

8.1

Entertainment

7.7

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Irvine. 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 from for flights from St. Louis to Irvine?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Irvine. On average, Lambert-St Louis has 0 outbound flights to Irvine per day from 7 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How popular is this St. Louis to Irvine flight route?

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

    One-way options have recently been found by users for as low as $139 on Frontier. Other airlines that offer cheap prices include Alaska Airlines from $154 and Delta from $159 one-way.

  • What are the most reliable airlines from St. Louis to Irvine?

    The top 3 most reliable airlines when flying from St. Louis to Irvine are Qatar Airways (95%), Japan Airlines (93%) and Alaska Airlines (93%).

  • What are the cheapest flights from St. Louis to Irvine?

    Looking at all options, your cheapest flight can be booked for $182. While the most popular route (Lambert-St Louis - Los Angeles) can be booked for $213 on average our data indicates $1,023 when flying from St. Louis to Irvine.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Irvine 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 St. Louis to Irvine?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Irvine (average of $246). Flying from St. Louis to Irvine in March is currently the most expensive (average of $344). 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

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Alternative routes for St. Louis to Irvine

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from St. Louis to Irvine

Discover the top 7 airlines that operate flights from St. Louis to Irvine. 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 December 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$202FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$119Average$234FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$263Average$464FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$269Average$421FlexibilityNo cancel feeOn-time71%
DeltaCheapest$286Average$394FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$317Average$552FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$332Average$667FlexibilityNo cancel feeOn-time75%
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