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$135+ Cheap flights from St. Louis (STL) to Riverside, 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — LAX
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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The best prices from Lambert-St Louis to Riverside 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 Riverside

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Riverside (R1V). 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 22, 2024.

Round-trip from

$157
(Mytrip)

One-way from

$135
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$445
From Lambert-St Louis to Riverside
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One-way flight from Lambert-St Louis to Riverside
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High demand for flights, 1% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from St. Louis to Riverside

Cheapest flights from St. Louis to Riverside
Explore the most affordable flight options available from St. Louis to Riverside. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Kiwi.com deal was found by Cheapflights users on 12/21. 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 stop25h 02mFrontier
Sat 1/49:31 pmLAX - STL
1 stop11h 39mFrontier
Deal found 12/21$311
This Expedia deal was found by Cheapflights users on 12/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/252:23 pmSTL - LAX
2 stops19h 16mMultiple Airlines
Sat 12/289:31 pmLAX - STL
1 stop11h 39mMultiple Airlines
Deal found 12/21$590
This Southwest deal was found by Cheapflights users on 12/21. 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 12/315:25 pmSTL - LAX
1 stop6h 50mSouthwest
Thu 1/27:35 pmLAX - STL
Nonstop3h 40mSouthwest
Deal found 12/21$609
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Sun 12/295:30 pmSTL - LAX
1 stop8h 58mUnited Airlines
Fri 1/1010:42 pmLAX - STL
2 stops12h 06mUnited Airlines
Deal found 12/21$634
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Sun 12/296:30 amSTL - LAX
Nonstop4h 14mAmerican Airlines
Mon 12/301:35 amLAX - STL
1 stop7h 10mAmerican Airlines
Deal found 12/22$637
This Alaska Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/242:23 pmSTL - LAX
1 stop10h 24mAlaska Airlines
Tue 12/3111:55 amLAX - STL
1 stop10h 04mAlaska Airlines
Deal found 12/22$698
This Delta deal was found by Cheapflights users on 12/21. 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 12/2411:46 amSTL - LAX
1 stop7h 05mDelta
Sun 1/511:55 pmLAX - STL
1 stop8h 59mDelta
Deal found 12/21$818

Find flights from St. Louis to Riverside within your budget

Customize your flight search to find flights from St. Louis to Riverside 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 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Fri 2/7

7:09 pm-5:43 pm

1 stop24h 34m

Los Angeles

Fri 2/14

2:35 pm-9:16 am

1 stop16h 41m

$157

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 2/4

2:49 pm-10:35 pm

1 stop9h 46m

Los Angeles

Tue 2/11

6:43 pm-9:16 am

1 stop12h 33m

$230

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Sat 2/15

4:39 pm-9:27 pm

1 stop6h 48m

Los Angeles

Tue 2/18

12:55 am-9:51 am

1 stop6h 56m

$328

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 2/4

2:49 pm-10:35 pm

1 stop9h 46m

Los Angeles

Tue 2/11

7:55 pm-11:59 pm

2 stops26h 04m

$330

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Wed 1/15

9:55 am-12:15 pm

Nonstop4h 20m

Los Angeles

Wed 1/22

11:35 am-5:10 pm

Nonstop3h 35m

$366

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 2/4

6:03 am-8:21 am

Nonstop4h 18m

Los Angeles

Tue 2/11

9:45 am-11:57 pm

1 stop12h 12m

$372

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Mon 1/20

6:00 am-11:05 am

1 stop7h 05m

Los Angeles

Mon 1/27

6:00 am-2:54 pm

1 stop6h 54m

$378

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 1/7

4:27 pm-6:00 pm

2 stops27h 33m

$135

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 3/6

6:45 pm-9:40 am

1 stop16h 55m

$137

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 1/23

12:15 pm-11:59 pm

2 stops13h 44m

$146

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 15 results
1
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Best time to book a flight from St. Louis to Riverside

Have a flexible travel schedule? Discover the best time to fly to Riverside 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 Riverside

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

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Riverside. Price data was last updated on December 20, 2024.

To ensure you get the cheapest price possible for a flight from St. Louis to Riverside, 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 Riverside?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Riverside (average of $246). Flying from St. Louis to Riverside 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 R1V?

Find hourly flight availability from St. Louis to Riverside. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2024.

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

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

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

Travelers seeking maximum savings on their St. Louis to Riverside 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 Riverside by month

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

In terms of precipitation, rainfall in Riverside 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 Riverside when rainfall is around 0.0 in.

Temperature in Riverside by month

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

If weather is an important factor for your trip to Riverside, 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 Riverside

Get insights into the airlines that provide service to Riverside. 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 Riverside. Reviews last updated December 22, 2024.
Read through reviews of airlines operating flights from St. Louis to Riverside, such as American Airlines, Frontier and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

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

Southwest
8.1
Very good
4,804 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

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

Alaska Airlines
8.0
Very good
9,537 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

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

Delta
8.0
Very good
8,594 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

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

United Airlines
7.4
Good
9,028 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

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

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Entertainment

7.7

Overall

8.1

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 Riverside. 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 Riverside?

    If you book a flight to Riverside from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 6 flights from Lambert-St Louis to Riverside per day from 7 different airlines.

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

    This flight path from Lambert-St Louis to Riverside was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    One-way options have recently been found by users for as low as $135 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $137 and United Airlines from $159 one-way.

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

    Consider Qatar Airways (95%), Japan Airlines (93%) or Alaska Airlines (93%) when booking your flight. These represent the most reliable airlines when flying from St. Louis to Riverside.

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

    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 $160 on average our data indicates $1,023 when flying from St. Louis to Riverside.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Riverside (average of $246). Flying from St. Louis to Riverside 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.

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Alternative routes for St. Louis to Riverside

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Top 7 airlines flying from St. Louis to Riverside

Discover the top 7 airlines that operate flights from St. Louis to Riverside. 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 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$202FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$119Average$234FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$263Average$463FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$269Average$427FlexibilityNo cancel feeOn-time71%
DeltaCheapest$286Average$394FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$317Average$524FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$332Average$667FlexibilityNo cancel feeOn-time75%
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