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$53+ Cheap flights from Riverside, CA to Phoenix

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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PHX
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Phoenix are usually found in September or January, booked 88 days in advance, depart on a Saturday or Friday and return on a Friday

Cheap flight deals from Riverside to Phoenix

Keep the following information in mind while searching for Riverside to Phoenix flight deals. Data was last updated August 20, 2025.

Round-trip from

$91
(Frontier)

One-way from

$53
(Cheapflightsfares)

Popular in

June

Cheapest in

September

Average price

$135
From Riverside to Phoenix
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One-way flight from Riverside to Phoenix
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Highest demand for flights based on searches. 12% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Riverside to Phoenix

Cheapest flights from Riverside to Phoenix
Explore the most affordable flight options available from Riverside to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Frontier deal was found by Cheapflights users on 8/20. 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.
Fri 11/77:48 pmLAX - PHX
Nonstop1h 35mFrontier
Sun 11/93:16 pmPHX - LAX
Nonstop1h 29mFrontier
Deal found 8/20$91
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:45 pmLAX - PHX
Nonstop1h 36mFrontier
Sat 9/278:00 amPHX - LAX
Nonstop1h 33mFrontier
Deal found 8/18$92
This CheapOair deal was found by Cheapflights users on 8/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:59 pmLAX - PHX
Nonstop1h 30mFrontier
Sat 9/138:00 amPHX - LAX
Nonstop1h 33mFrontier
Deal found 8/18$94
This Frontier deal was found by Cheapflights users on 8/18. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:48 pmLAX - PHX
Nonstop1h 35mFrontier
Sun 11/163:16 pmPHX - LAX
Nonstop1h 29mFrontier
Deal found 8/18$95
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/610:18 amLAX - PHX
Nonstop1h 29mFrontier
Sat 9/138:00 amPHX - LAX
Nonstop1h 33mFrontier
Deal found 8/20$96
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:59 pmLAX - PHX
Nonstop1h 30mFrontier
Sun 9/72:25 pmPHX - LAX
Nonstop1h 28mFrontier
Deal found 8/19$97
This CheapOair deal was found by Cheapflights users on 8/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:15 amLAX - PHX
Nonstop1h 35mFrontier
Fri 9/52:25 pmPHX - LAX
Nonstop1h 28mFrontier
Deal found 8/19$98
This Frontier deal was found by Cheapflights users on 8/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:15 amLAX - PHX
Nonstop1h 35mFrontier
Sun 9/72:25 pmPHX - LAX
Nonstop1h 28mFrontier
Deal found 8/19$99
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/299:58 pmLAX - PHX
Nonstop1h 42mFrontier
Sun 8/311:35 pmPHX - LAX
Nonstop1h 26mFrontier
Deal found 8/18$100
This Trip.com deal was found by Cheapflights users on 8/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:03 pmLAX - PHX
1 stop5h 41mFrontier
Wed 9/178:00 amPHX - LAX
Nonstop1h 33mFrontier
Deal found 8/19$101
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:15 amLAX - PHX
Nonstop1h 35mFrontier
Thu 9/42:25 pmPHX - LAX
Nonstop1h 28mFrontier
Deal found 8/20$102
This Mytrip deal was found by Cheapflights users on 8/20. 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.
Thu 9/1111:03 amLAX - AZA
1 stop11h 52mMultiple Airlines
Mon 9/154:08 pmAZA - LAX
2 stops18h 48mMultiple Airlines
Deal found 8/20$245

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Phoenix 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 August 20, 2025.
Use the filters below to find and compare flights from Riverside to Phoenix that are best for you.

Fly from

Riverside

Fly to

Phoenix

Route

Depart

Return

Price

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Fri 9/5

9:59 pm-11:29 pm

Nonstop1h 30m

Phoenix Sky Harbor Intl

Sun 9/14

6:30 am-8:00 am

Nonstop1h 30m

$94

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Wed 10/15

5:29 pm-7:05 pm

Nonstop1h 36m

Phoenix Sky Harbor Intl

Sun 10/19

5:49 pm-7:17 pm

Nonstop1h 28m

$94

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Sun 10/5

8:25 pm-9:56 pm

Nonstop1h 31m

Phoenix Sky Harbor Intl

Mon 10/6

2:28 pm-3:56 pm

Nonstop1h 28m

$94

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Fri 11/14

12:42 pm-3:18 pm

Nonstop1h 36m

Phoenix Sky Harbor Intl

Sun 11/16

5:16 pm-5:44 pm

Nonstop1h 28m

$95

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Wed 9/3

9:15 am-10:50 am

Nonstop1h 35m

Phoenix Sky Harbor Intl

Fri 9/5

2:25 pm-3:53 pm

Nonstop1h 28m

$100

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Thu 10/2

8:25 pm-9:56 pm

Nonstop1h 31m

Phoenix Sky Harbor Intl

Sat 10/4

8:00 am-9:33 am

Nonstop1h 33m

$101

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Mon 9/15

6:03 pm-11:44 pm

1 stop5h 41m

Phoenix Sky Harbor Intl

Wed 9/17

8:00 am-9:33 am

Nonstop1h 33m

$101

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Mon 9/1

9:58 pm-11:40 pm

Nonstop1h 42m

Phoenix Sky Harbor Intl

Mon 9/8

2:32 pm-4:00 pm

Nonstop1h 28m

$103

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Fri 11/14

7:48 pm-10:23 pm

Nonstop1h 35m

Phoenix Sky Harbor Intl

Mon 11/17

3:16 pm-3:45 pm

Nonstop1h 29m

$108

Los AngelesPhoenix

LAX - PHX

LAXPHX

Los Angeles

Mon 9/1

9:58 pm-11:40 pm

Nonstop1h 42m

Phoenix Sky Harbor Intl

Fri 9/5

2:25 pm-3:53 pm

Nonstop1h 28m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 32 results
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Best time to book a flight from Riverside to Phoenix

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

How far ahead should I book a flight from Riverside to Phoenix?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Phoenix. Price data was last updated on August 8, 2025.

Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to Phoenix. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Riverside to Phoenix?

Currently, January is the cheapest month in which you can book a flight from Riverside to Phoenix (average of $258). Flying from Riverside to Phoenix in March is currently the most expensive (average of $337). 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 R1V to PHX?

Find hourly flight availability from Riverside to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

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

What is the cheapest day to fly from Riverside to Phoenix?

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

Travelers seeking maximum savings on their Riverside to Phoenix flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Riverside to Phoenix

Explore weekly flight availability from Riverside to Phoenix. 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 August 20, 2025.

The most flights from R1V to PH1 are scheduled on a Wednesday (86 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (53 on average).

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated August 20, 2025.
Read through reviews of airlines operating flights from Riverside to Phoenix, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
7,982 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
8,928 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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
3,207 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

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 Riverside to Phoenix. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Riverside to Phoenix?

    Frontier can get you from Riverside to Phoenix in just under 1h 30m. Your travel time will be generally consistent. The distance from Riverside to Phoenix is about 370 mi. All flights are typically nonstop.

  • What are the most reliable airlines from Riverside to Phoenix?

    No one likes to see their flight delayed. When booking a flight from Riverside to Phoenix consider choosing Air China (97%), China Eastern (97%) or Air France (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Riverside to Phoenix?

    Looking for the cheapest flight from Riverside to Phoenix? While on average our users pay $595, our data indicates the cheapest price to be $58. The most popular route (Los Angeles - Phoenix Sky Harbor Intl), is priced around $79.

  • Can I find deals for flights from Riverside to Phoenix that include hotel bookings?

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

  • How can I find direct flights from Riverside to Phoenix?

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

  • Can I find deals for business class flights from Riverside to Phoenix?

    Yes. Cheapflights offers flight deals from Riverside to Phoenix 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 Riverside to Phoenix?

    Currently, January is the cheapest month in which you can book a flight from Riverside to Phoenix (average of $258). Flying from Riverside to Phoenix in March is currently the most expensive (average of $337). 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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Top 8 airlines flying from Riverside to Phoenix

Discover the top 8 airlines that operate flights from Riverside to Phoenix. 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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$34Average$129FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$42Average$149FlexibilityNo cancel feeOn-time65%
DeltaCheapest$73Average$177FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$98Average$247FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$98Average$253FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$99Average$277FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$118Average$357FlexibilityNo cancel feeOn-time75%
Southern / MokuleleCheapest$139Average$262FlexibilityNo cancel feeOn-timeN/A

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