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Puerto Rico

$134+ Cheap flights from Riverside, CA to Puerto Rico

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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJU
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheap flight deals from Riverside to Puerto Rico

Keep the following information in mind while searching for Riverside to Puerto Rico flight deals. Data was last updated August 1, 2025.

Round-trip from

$268
(Frontier)

One-way from

$134
(CheapOair)

Popular in

December

Cheapest in

October

Average price

$465
From Riverside to Puerto Rico
Search Deals
One-way flight from Riverside to Puerto Rico
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Highest demand for flights based on searches. 11% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 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 Puerto Rico

Cheapest flights from Riverside to Puerto Rico
Explore the most affordable flight options available from Riverside to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2025.

This CheapOair deal was found by Cheapflights users on 7/31. 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 8/81:57 pmLAX - PSE
1 stop16h 19mFrontier
Wed 8/1311:55 amPSE - LAX
1 stop32h 13mFrontier
Deal found 7/31$268
This Frontier deal was found by Cheapflights users on 7/29. 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 8/131:57 pmLAX - BQN
1 stop9h 04mFrontier
Tue 8/193:39 amBQN - LAX
1 stop12h 21mFrontier
Deal found 7/29$268
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/129:31 pmLAX - SJU
1 stop22h 52mFrontier
Sun 9/219:07 amSJU - LAX
1 stop26h 05mFrontier
Deal found 7/30$281
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Fri 10/172:20 pmLAX - SJU
1 stop9h 14mMultiple Airlines
Sun 10/192:48 pmSJU - LAX
1 stop11h 11mMultiple Airlines
Deal found 7/29$282
This FlightHub deal was found by Cheapflights users on 7/30. 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.
Fri 9/510:59 pmLAX - SJU
2 stops12h 12mSpirit Airlines
Fri 9/1211:59 amSJU - LAX
2 stops12h 59mSpirit Airlines
Deal found 7/30$286
This Southwest deal was found by Cheapflights users on 7/31. 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.
Wed 12/107:20 pmLAX - SJU
2 stops11h 05mSouthwest
Wed 12/1711:20 amSJU - LAX
1 stop10h 45mSouthwest
Deal found 7/31$313
This lol.travel deal was found by Cheapflights users on 7/29. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:20 amLAX - BQN
1 stop11h 49mUnited Airlines
Fri 9/1912:15 amBQN - LAX
2 stops14h 30mUnited Airlines
Deal found 7/29$340
This JetBlue deal was found by Cheapflights users on 7/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:50 amLAX - PSE
1 stop11h 43mJetBlue
Wed 12/315:01 amPSE - LAX
1 stop12h 01mJetBlue
Deal found 7/31$372
This Priceline deal was found by Cheapflights users on 7/30. 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.
Thu 9/1112:25 pmLAX - BQN
1 stop11h 07mJetBlue
Tue 9/165:01 amBQN - LAX
1 stop21h 07mJetBlue
Deal found 7/30$434
This Trip.com deal was found by Cheapflights users on 7/29. 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.
Sat 9/138:20 amLAX - BQN
1 stop11h 49mMultiple Airlines
Sat 9/2011:41 amBQN - LAX
1 stop23h 31mMultiple Airlines
Deal found 7/29$443
This United Airlines deal was found by Cheapflights users on 7/31. 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 11/2311:30 pmLAX - CPX
2 stops13h 21mUnited Airlines
Wed 12/310:13 amCPX - LAX
2 stops17h 40mUnited Airlines
Deal found 7/31$1,557
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 11/2212:25 amLAX - VQS
2 stops14h 50mUnited Airlines
Wed 12/32:45 pmVQS - LAX
2 stops14h 14mUnited Airlines
Deal found 7/31$2,363

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Puerto Rico 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 1, 2025.
Use the filters below to find and compare flights from Riverside to Puerto Rico that are best for you.

Fly from

Riverside

Fly to

Puerto Rico

Route

Depart

Return

Price

Los AngelesPonce

LAX - PSE

LAXPSE

Los Angeles

Fri 8/8

1:57 pm-9:16 am

1 stop16h 19m

Ponce Mercedita

Wed 8/13

11:55 am-5:08 pm

1 stop32h 13m

$268

Los AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Wed 8/13

1:57 pm-2:01 am

1 stop9h 04m

Aguadilla Borinquen

Tue 8/19

3:39 am-1:00 pm

1 stop12h 21m

$268

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 9/12

9:31 pm-11:23 pm

1 stop22h 52m

San Juan Luis Munoz Marin Intl

Sun 9/21

9:07 am-8:12 am

1 stop26h 05m

$281

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 10/17

2:20 pm-2:34 am

1 stop9h 14m

San Juan Luis Munoz Marin Intl

Sun 10/19

2:48 pm-10:59 pm

1 stop11h 11m

$282

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 9/5

10:59 pm-2:11 pm

2 stops12h 12m

San Juan Luis Munoz Marin Intl

Fri 9/12

11:59 am-9:58 pm

2 stops12h 59m

$286

Los AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Sat 9/13

8:20 am-11:09 pm

1 stop11h 49m

Aguadilla Borinquen

Fri 9/19

12:15 am-11:45 am

2 stops14h 30m

$340

Los AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Thu 9/11

12:25 pm-2:32 am

1 stop11h 07m

Aguadilla Borinquen

Tue 9/16

5:01 am-11:08 pm

1 stop21h 07m

$434

Los AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Sat 9/13

8:20 am-11:09 pm

1 stop11h 49m

Aguadilla Borinquen

Sat 9/20

11:41 am-8:12 am

1 stop23h 31m

$443

Los AngelesPonce

LAX - PSE

LAXPSE

Los Angeles

Fri 8/15

10:35 am-12:19 am

1 stop10h 44m

Ponce Mercedita

Mon 8/18

1:59 am-9:54 am

1 stop10h 55m

$785

Los AngelesCulebra

LAX - CPX

LAXCPX

Los Angeles

Sun 11/23

11:30 pm-4:51 pm

2 stops13h 21m

Culebra

Wed 12/3

10:13 am-11:53 pm

2 stops17h 40m

$1,557

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 24 results
1
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Best time to book a flight from Riverside to Puerto Rico

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

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

Currently, September is the cheapest month in which you can book a flight from Riverside to Puerto Rico (average of $254). Flying from Riverside to Puerto Rico in June is currently the most expensive (average of $339). 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 PR?

Find hourly flight availability from Riverside to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2025.

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

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated August 1, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Riverside to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,983 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,904 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
JetBlue
7.3
Good
2,915 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Spirit Airlines
6.3
Okay
8,054 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Riverside to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Riverside to Puerto Rico one-way?

    $134 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Southwest, with prices starting from $136 and $138, respectively.

  • What are the most popular routes from Riverside to Puerto Rico?

    The most popular route from Riverside to Puerto Rico is Los Angeles - San Juan Luis Munoz Marin Intl. You may also consider Los Angeles - Ponce Mercedita or Los Angeles - Aguadilla Borinquen.

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

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

  • How can I find direct flights from Riverside to Puerto Rico?

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

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

    Yes. Cheapflights offers flight deals from Riverside to Puerto Rico 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 Puerto Rico?

    Currently, September is the cheapest month in which you can book a flight from Riverside to Puerto Rico (average of $254). Flying from Riverside to Puerto Rico in June is currently the most expensive (average of $339). 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 Riverside to Puerto Rico

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Riverside to Puerto Rico

Discover the top 7 airlines that operate flights from Riverside to Puerto Rico. 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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$352FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$221Average$376FlexibilityNo cancel feeOn-time65%
DeltaCheapest$247Average$547FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$281Average$517FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$317Average$583FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$329Average$581FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$404Average$627FlexibilityNo cancel feeOn-time63%

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