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$104+ Cheap flights from Philadelphia (PHL) 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LAX
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Riverside are usually found in September or October, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Philadelphia to Riverside

Keep the following information in mind while searching for Philadelphia to Riverside flight deals. Data was last updated August 16, 2025.

Round-trip from

$179
(Kiwi.com)

One-way from

$104
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$299
From Philadelphia to Riverside
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One-way flight from Philadelphia to Riverside
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Highest demand for flights based on searches. 7% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Philadelphia to Riverside

Cheapest flights from Philadelphia to Riverside
Explore the most affordable flight options available from Philadelphia to Riverside. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Wed 9/35:15 pmPHL - LAX
1 stop18h 27mFrontier
Sat 9/64:51 pmLAX - PHL
1 stop13h 34mFrontier
Deal found 8/15$179
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 9/55:37 pmPHL - LAX
Nonstop5h 59mFrontier
Sun 9/142:03 pmLAX - PHL
1 stop7h 54mFrontier
Deal found 8/13$180
This Frontier deal was found by Cheapflights users on 8/15. 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 11/78:00 amPHL - LAX
1 stop12h 52mFrontier
Wed 11/122:13 pmLAX - PHL
1 stop11h 36mFrontier
Deal found 8/15$181
This Frontier deal was found by Cheapflights users on 8/14. 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 9/198:10 amPHL - LAX
1 stop12h 10mFrontier
Sun 10/510:45 pmLAX - PHL
1 stop9h 11mFrontier
Deal found 8/14$182
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:37 pmPHL - LAX
Nonstop5h 59mFrontier
Tue 9/161:08 pmLAX - PHL
1 stop21h 42mFrontier
Deal found 8/15$183
This Frontier deal was found by Cheapflights users on 8/15. 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 9/55:15 amPHL - LAX
2 stops13h 38mFrontier
Mon 9/89:31 pmLAX - PHL
Nonstop5h 24mFrontier
Deal found 8/15$184
This Frontier deal was found by Cheapflights users on 8/15. 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 10/115:50 pmPHL - LAX
Nonstop5h 46mFrontier
Wed 10/153:48 pmLAX - PHL
2 stops16h 12mFrontier
Deal found 8/15$185
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 8/285:35 pmPHL - LAX
Nonstop5h 41mFrontier
Wed 9/312:43 pmLAX - PHL
2 stops17h 42mFrontier
Deal found 8/14$186
This Frontier deal was found by Cheapflights users on 8/14. 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 9/195:37 pmPHL - LAX
Nonstop5h 59mFrontier
Sat 9/201:23 pmLAX - PHL
2 stops15h 08mFrontier
Deal found 8/14$187
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/26:37 pmPHL - LAX
1 stop20h 20mFrontier
Thu 9/46:35 amLAX - PHL
1 stop15h 22mFrontier
Deal found 8/15$188
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:53 pmPHL - LAX
1 stop21h 35mFrontier
Tue 10/147:00 pmLAX - PHL
1 stop18h 41mFrontier
Deal found 8/15$189
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Thu 8/217:15 amPHL - LAX
1 stop7h 39mMultiple Airlines
Mon 8/259:44 amLAX - PHL
1 stop10h 36mMultiple Airlines
Deal found 8/14$190

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 August 16, 2025.
Use the filters below to find and compare flights from Philadelphia to Riverside that are best for you.

Fly from

Philadelphia

Fly to

Riverside

Route

Depart

Return

Price

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Fri 10/3

5:37 pm-8:36 pm

Nonstop5h 59m

Los Angeles

Thu 10/9

6:44 am-10:10 pm

2 stops12h 26m

$181

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Fri 11/7

6:19 am-3:24 pm

1 stop12h 05m

Los Angeles

Sun 11/16

1:18 pm-12:54 am

1 stop8h 36m

$181

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Thu 9/11

5:37 pm-8:36 pm

Nonstop5h 59m

Los Angeles

Thu 9/25

9:31 pm-5:55 am

Nonstop5h 24m

$182

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Fri 9/19

8:10 am-5:20 pm

1 stop12h 10m

Los Angeles

Sun 10/5

10:45 pm-10:56 am

1 stop9h 11m

$182

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Sat 9/20

5:37 pm-8:36 pm

Nonstop5h 59m

Los Angeles

Mon 9/29

6:35 am-12:36 am

2 stops15h 01m

$182

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Thu 11/6

5:35 pm-8:21 pm

Nonstop5h 46m

Los Angeles

Sun 11/9

7:00 pm-6:39 pm

2 stops20h 39m

$182

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Sat 11/8

5:35 pm-8:21 pm

Nonstop5h 46m

Los Angeles

Sun 11/9

7:00 pm-6:39 pm

2 stops20h 39m

$182

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Thu 9/11

5:15 am-12:21 pm

1 stop10h 06m

Los Angeles

Wed 9/17

6:15 am-8:51 pm

1 stop11h 36m

$183

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Fri 9/5

5:37 pm-8:36 pm

Nonstop5h 59m

Los Angeles

Sat 9/13

9:31 pm-5:55 am

Nonstop5h 24m

$183

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Fri 9/5

5:15 am-3:53 pm

2 stops13h 38m

Los Angeles

Sun 9/7

9:31 pm-5:55 am

Nonstop5h 24m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 24 results
1
2
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Best time to book a flight from Philadelphia to Riverside

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

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

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

The price you pay for your flight from Philadelphia to Riverside may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Riverside (average of $246). Flying from Philadelphia to Riverside in March is currently the most expensive (average of $326). 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 PHL to R1V?

Find hourly flight availability from Philadelphia 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 August 16, 2025.

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

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Riverside. Price data was last updated on August 10, 2025.

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

Weekly flight availability from Philadelphia to Riverside

Explore weekly flight availability from Philadelphia to Riverside. 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 16, 2025.

The most flights from PHL to R1V are scheduled on a Friday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).

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 August 16, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Philadelphia to Riverside. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

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

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

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
7,985 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

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

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

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.
Spirit Airlines
6.3
Okay
8,042 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

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
3,211 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Boarding

8.1

Overall

8.0

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 Philadelphia 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 Philadelphia to Riverside?

    Most people fly from Philadelphia (PHL) if they book a flight from Philadelphia to Riverside. On average, Philadelphia has 31 outbound flights to Riverside per day from 8 airlines. Philadelphia is conveniently located just 7.0 mi from Philadelphia’s city center.

  • How popular is this Philadelphia to Riverside flight route?

    Flights from Philadelphia to Riverside have been viewed 123 times in the past calendar month.

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

    No one likes to see their flight delayed. When booking a flight from Philadelphia to Riverside consider choosing Japan Airlines (87%), Qatar Airways (80%) or Spirit Airlines (79%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to Riverside?

    Looking at all options, your cheapest flight can be booked for $108. While the most popular route (Philadelphia - Los Angeles) can be booked for $139 on average our data indicates $1,102 when flying from Philadelphia to Riverside.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Riverside (average of $246). Flying from Philadelphia to Riverside in March is currently the most expensive (average of $326). 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 Philadelphia to Riverside

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Philadelphia to Riverside

Discover the top 8 airlines that operate flights from Philadelphia 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$88Average$228FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$260FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$416FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$135Average$327FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$199Average$429FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$253Average$473FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$305Average$402FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$305Average$482FlexibilityNo cancel feeOn-time69%

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