Irvine

$145+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
Nov 25 — Dec 21
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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 November 20, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$256
(Mytrip)

One-way from

$145
(Mytrip)
High demand for flights, 12% potential price rise
Best time to find cheap flights, 19% potential price drop
From Lambert-St Louis to Irvine
One-way flight from Lambert-St Louis to Irvine

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 November 20, 2024.

This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1012:15 pmSTL - LAX
2 stops11h 00mMultiple Airlines
Mon 12/1610:08 amLAX - STL
3 stops27h 13mMultiple Airlines
Deal found 11/19$256
This Frontier deal was found by Cheapflights users on 11/20. 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.
Sat 12/216:49 pmSTL - LAX
1 stop7h 41mFrontier
Tue 12/248:09 pmLAX - STL
1 stop10h 04mFrontier
Deal found 11/20$260
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/35:21 pmSTL - LAX
2 stops30h 16mSpirit Airlines
Mon 12/910:25 pmLAX - STL
2 stops14h 56mSpirit Airlines
Deal found 11/20$325
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Sat 12/142:29 pmSTL - LAX
1 stop9h 25mAmerican Airlines
Sat 12/1411:59 pmLAX - STL
1 stop7h 46mAmerican Airlines
Deal found 11/20$336
This Alaska Airlines deal was found by Cheapflights users on 11/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:00 amSTL - LAX
1 stop9h 30mAlaska Airlines
Sat 12/144:00 pmLAX - STL
1 stop29h 59mAlaska Airlines
Deal found 11/19$344
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/137:20 amSTL - LAX
1 stop6h 49mDelta
Sat 12/146:00 amLAX - STL
1 stop6h 41mDelta
Deal found 11/19$346
This United Airlines deal was found by Cheapflights users on 11/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/244:43 pmSTL - LAX
1 stop8h 17mUnited Airlines
Thu 12/2612:20 amLAX - STL
1 stop8h 27mUnited Airlines
Deal found 11/19$385
This Southwest deal was found by Cheapflights users on 11/19. 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.
Tue 12/247:05 pmSTL - LAX
Nonstop4h 10mSouthwest
Mon 12/307:35 pmLAX - STL
Nonstop3h 40mSouthwest
Deal found 11/19$388

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 12/10

12:15 pm-9:15 pm

2 stops11h 00m

Los Angeles

Mon 12/16

10:08 am-3:21 pm

3 stops27h 13m

$256

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Sat 12/21

6:49 pm-12:30 am

1 stop7h 41m

Los Angeles

Tue 12/24

8:09 pm-8:13 am

1 stop10h 04m

$260

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Wed 1/29

2:49 pm-9:31 am

2 stops20h 42m

Los Angeles

Sat 2/1

11:35 am-1:53 pm

2 stops24h 18m

$314

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Sat 12/14

6:25 am-8:37 am

Nonstop4h 12m

Los Angeles

Sat 12/14

9:45 am-11:54 pm

1 stop12h 09m

$317

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 12/3

5:21 pm-9:37 pm

2 stops30h 16m

Los Angeles

Mon 12/9

10:25 pm-3:21 pm

2 stops14h 56m

$325

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Fri 12/13

7:20 am-12:09 pm

1 stop6h 49m

Los Angeles

Sat 12/14

6:00 am-2:41 pm

1 stop6h 41m

$346

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 12/24

4:43 pm-11:00 pm

1 stop8h 17m

Los Angeles

Thu 12/26

12:20 am-10:47 am

1 stop8h 27m

$385

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Wed 1/29

9:55 am-12:15 pm

Nonstop4h 20m

Los Angeles

Sat 3/1

7:25 am-12:55 pm

Nonstop3h 30m

$391

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 12/17

12:15 pm-9:15 am

3 stops23h 00m

$145

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 11/26

10:17 pm-7:58 pm

1 stop23h 41m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

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 November 15, 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, September is the cheapest month in which you can book a flight from St. Louis to Irvine (average of $240). Flying from St. Louis to Irvine in July is currently the most expensive (average of $321). 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 November 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 November 18, 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.

Weekly flight availability from St. Louis to Irvine

Explore weekly flight availability from St. Louis to Irvine. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from STL to IR9 are scheduled on a Wednesday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 November 20, 2024.
See what other customers who have flown with Frontier, Alaska Airlines and American 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
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.1
Very good
5,014 reviews
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.0
Very good
9,461 reviews
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

8.0
Very good
8,756 reviews
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

7.4
Good
9,171 reviews
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

7.3
Good
2,811 reviews
8.1
Very good
5,014 reviews

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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 8 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 $146 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $153 and Alaska Airlines from $158 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 Sun Country Air (100%), Qatar Airways (94%) and Cathay Pacific (92%).

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

    Looking at all options, your cheapest flight can be booked for $145. While the most popular route (Lambert-St Louis - Los Angeles) can be booked for $223 on average our data indicates $1,181 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, September is the cheapest month in which you can book a flight from St. Louis to Irvine (average of $240). Flying from St. Louis to Irvine in July is currently the most expensive (average of $321). 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$202FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$148Average$237FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$242Average$462FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$268Average$430FlexibilityNo cancel feeOn-time71%
DeltaCheapest$273Average$404FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$310Average$587FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$332Average$667FlexibilityNo cancel feeOn-time75%
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