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$93+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LAX
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Riverside are usually found in October or July, booked 50 days in advance, depart on a Thursday or Wednesday 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 September 15, 2025.

Round-trip from

$170
(Kiwi.com)

One-way from

$93
(Priceline)

Popular in

December

Cheapest in

October

Average price

$300
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. 6% potential increase in price ($20 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 September 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 September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 10/105:50 pmPHL - LAX
Nonstop5h 46mFrontier
Thu 10/2310:39 pmLAX - PHL
Nonstop5h 23mFrontier
Deal found 9/15$170
This Priceline deal was found by Cheapflights users on 9/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/291:02 pmPHL - LAX
1 stop11h 43mFrontier
Thu 10/21:33 pmLAX - PHL
1 stop8h 26mFrontier
Deal found 9/15$171
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:42 amPHL - LAX
1 stop16h 40mFrontier
Sun 10/266:44 amLAX - PHL
1 stop19h 35mFrontier
Deal found 9/15$172
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/65:37 pmPHL - LAX
Nonstop5h 59mFrontier
Wed 10/222:27 pmLAX - PHL
1 stop14h 03mFrontier
Deal found 9/15$175
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 10/46:45 amPHL - LAX
1 stop13h 45mFrontier
Sat 10/1110:39 pmLAX - PHL
Nonstop5h 23mFrontier
Deal found 9/14$176
This Mytrip deal was found by Cheapflights users on 9/12. 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.
Fri 10/36:45 amPHL - LAX
1 stop16h 23mFrontier
Mon 10/62:21 pmLAX - PHL
1 stop26h 43mFrontier
Deal found 9/12$177
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:45 amPHL - LAX
1 stop13h 33mFrontier
Sun 10/52:21 pmLAX - PHL
1 stop31h 31mFrontier
Deal found 9/14$178
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 9/222:07 pmPHL - LAX
1 stop11h 37mSpirit Airlines
Mon 9/2911:10 amLAX - PHL
1 stop10h 36mSpirit Airlines
Deal found 9/14$179
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 10/135:50 pmPHL - LAX
Nonstop5h 46mFrontier
Wed 10/157:00 pmLAX - PHL
1 stop18h 41mFrontier
Deal found 9/15$180
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:42 amPHL - LAX
1 stop16h 40mFrontier
Sat 11/14:42 pmLAX - PHL
1 stop13h 31mFrontier
Deal found 9/13$181
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:10 amPHL - LAX
1 stop13h 55mFrontier
Mon 11/101:23 pmLAX - PHL
1 stop7h 56mFrontier
Deal found 9/13$182
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/55:15 amPHL - LAX
1 stop29h 57mFrontier
Fri 10/102:27 pmLAX - PHL
1 stop20h 58mFrontier
Deal found 9/14$183

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 September 15, 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

Sat 11/1

6:19 am-12:25 am

1 stop21h 06m

Los Angeles

Sat 11/8

4:42 pm-8:23 am

1 stop12h 41m

$181

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Sat 12/6

5:35 pm-10:20 pm

1 stop7h 45m

Los Angeles

Wed 12/10

5:50 am-4:20 pm

1 stop7h 30m

$260

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Sat 12/6

3:40 pm-8:20 pm

1 stop7h 40m

Los Angeles

Tue 12/9

5:50 am-4:20 pm

1 stop7h 30m

$260

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Wed 11/12

1:50 pm-8:50 pm

2 stops10h 00m

Los Angeles

Wed 11/19

8:40 am-9:00 pm

2 stops9h 20m

$267

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Thu 12/4

6:35 am-11:55 am

1 stop8h 20m

Los Angeles

Sat 12/6

9:20 am-8:35 pm

2 stops8h 15m

$275

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Sat 12/6

10:15 am-3:30 pm

1 stop8h 15m

Los Angeles

Tue 12/9

12:55 am-11:36 am

1 stop7h 41m

$277

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Mon 11/24

5:30 am-11:01 am

1 stop8h 31m

Los Angeles

Wed 12/3

12:45 pm-12:50 am

1 stop9h 05m

$277

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Wed 11/12

8:00 pm-12:59 am

1 stop7h 59m

Los Angeles

Tue 11/18

12:25 am-10:24 am

1 stop6h 59m

$277

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Sat 12/6

2:23 pm-9:50 pm

1 stop10h 27m

Los Angeles

Mon 12/8

7:13 pm-5:50 am

1 stop7h 37m

$277

PhiladelphiaLos Angeles

PHL - LAX

PHLLAX

Philadelphia

Fri 11/14

8:00 pm-12:59 am

1 stop7h 59m

Los Angeles

Sun 11/16

12:25 am-10:24 am

1 stop6h 59m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 23 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 September 12, 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 $325). 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 September 15, 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 September 14, 2025.

Travelers seeking maximum savings on their Philadelphia to Riverside flight should consider departing on Wednesday 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 September 15, 2025.

The most flights from PHL to R1V are scheduled on a Saturday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (18 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 September 15, 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
4,242 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
4,242 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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 24 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 122 times in the past calendar month.

  • How long is the flight from Philadelphia to Riverside?

    There are many flights that can get you from Philadelphia to Riverside in 7h 45m. Fly via Frontier or Southwest to get the fastest option. Airlines will cover a distance of 2395 mi. This flight may include one or multiple stops.

  • 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 Spirit Airlines (100%), Japan Airlines (90%) or Qatar Airways (84%) 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 $105. While the most popular route (Philadelphia - Los Angeles) can be booked for $125 on average, our data indicates $1,112 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 $325). 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$92Average$234FlexibilityNo cancel feeOn-time65%
FrontierCheapest$110Average$267FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$413FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$135Average$197FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$210Average$435FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$253Average$472FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$293Average$481FlexibilityNo cancel feeOn-time69%
Sun Country AirCheapest$305Average$402FlexibilityNo cancel feeOn-time83%

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