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Puerto Rico

$141+ 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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJU
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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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 November 2, 2025.

This CheapOair deal was found by Cheapflights users on 11/2. 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.
Thu 12/1110:35 amLAX - SJU
1 stop8h 50mSpirit Airlines
Mon 12/151:27 pmSJU - LAX
1 stop11h 48mSpirit Airlines
Deal found 11/2$266
This CheapOair deal was found by Cheapflights users on 10/31. 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.
Thu 11/277:49 amLAX - SJU
1 stop12h 06mSpirit Airlines
Sat 12/66:00 amSJU - LAX
1 stop20h 24mSpirit Airlines
Deal found 10/31$267
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Tue 12/92:12 pmLAX - SJU
1 stop22h 57mSpirit Airlines
Sat 12/136:00 amSJU - LAX
1 stop20h 24mSpirit Airlines
Deal found 11/1$268
This KAYAK deal was found by Cheapflights users on 11/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:30 pmLAX - SJU
2 stops21h 15mSpirit Airlines
Wed 12/105:00 pmSJU - LAX
2 stops19h 29mSpirit Airlines
Deal found 11/1$269
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/610:35 amLAX - SJU
1 stop8h 50mMultiple Airlines
Wed 12/107:10 amSJU - LAX
1 stop18h 46mMultiple Airlines
Deal found 11/2$271
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Sun 12/710:35 amLAX - SJU
1 stop8h 50mMultiple Airlines
Fri 12/124:31 pmSJU - LAX
2 stops20h 59mMultiple Airlines
Deal found 11/2$273
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/275:45 amLAX - SJU
1 stop15h 21mMultiple Airlines
Fri 12/54:10 amSJU - LAX
2 stops21h 01mMultiple Airlines
Deal found 11/2$274
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 12/110:30 pmLAX - SJU
1 stop12h 31mMultiple Airlines
Thu 12/46:00 amSJU - LAX
1 stop20h 24mMultiple Airlines
Deal found 11/2$276
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Tue 12/27:49 amLAX - SJU
1 stop12h 06mSpirit Airlines
Sat 12/66:00 amSJU - LAX
1 stop20h 24mSpirit Airlines
Deal found 11/2$278
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 12/81:42 pmLAX - SJU
1 stop29h 43mMultiple Airlines
Fri 12/128:45 pmSJU - LAX
1 stop16h 44mMultiple Airlines
Deal found 11/1$279
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Sun 12/710:35 amLAX - SJU
1 stop8h 50mSpirit Airlines
Wed 12/105:00 pmSJU - LAX
2 stops19h 29mSpirit Airlines
Deal found 11/2$280
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/209:54 pmLAX - BQN
2 stops33h 29mMultiple Airlines
Sun 11/233:55 amBQN - LAX
1 stop18h 28mMultiple Airlines
Deal found 10/31$463

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 November 2, 2025.

Round-trip from

$265
(CheapOair)

One-way from

$141
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$488
From Riverside to Puerto Rico
Search Deals
One-way flight from Riverside to Puerto Rico
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 2, 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 AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Fri 1/30

8:20 am-11:57 pm

1 stop11h 37m

Aguadilla Borinquen

Sun 2/1

1:09 am-9:08 am

1 stop11h 59m

$295

Los AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Thu 1/29

5:50 am-11:57 pm

2 stops14h 07m

Aguadilla Borinquen

Sun 2/1

1:09 am-9:08 am

1 stop11h 59m

$295

Los AngelesAguadilla

LAX - BQN

LAXBQN

Los Angeles

Wed 1/28

7:35 am-11:57 pm

2 stops12h 22m

Aguadilla Borinquen

Sun 2/1

1:09 am-1:30 pm

2 stops16h 21m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Mon 2/23

8:00 pm-11:20 am

2 stops11h 20m

San Juan Luis Munoz Marin Intl

Fri 2/27

3:15 pm-11:40 pm

2 stops12h 25m

$323

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Tue 2/24

7:00 am-9:56 pm

1 stop10h 56m

San Juan Luis Munoz Marin Intl

Wed 2/25

6:55 am-2:48 pm

1 stop11h 53m

$346

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 5/1

11:45 am-11:25 pm

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Wed 5/6

11:25 am-9:20 pm

2 stops12h 55m

$351

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 4/10

11:50 pm-3:35 pm

1 stop12h 45m

San Juan Luis Munoz Marin Intl

Fri 4/17

6:50 am-6:00 pm

2 stops14h 10m

$351

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 2/20

6:00 am-11:59 pm

1 stop13h 59m

San Juan Luis Munoz Marin Intl

Fri 2/27

1:59 am-1:19 pm

1 stop15h 20m

$352

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 4/10

7:00 am-12:15 am

1 stop14h 15m

San Juan Luis Munoz Marin Intl

Wed 4/15

7:20 am-5:19 pm

1 stop12h 59m

$352

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Tue 2/24

7:00 am-12:58 am

1 stop13h 58m

San Juan Luis Munoz Marin Intl

Sun 3/1

11:59 pm-9:16 am

1 stop13h 17m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 54 results
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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, April is the cheapest month in which you can book a flight from Riverside to Puerto Rico (average of $133). Flying from Riverside to Puerto Rico in November is currently the most expensive (average of $285). 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 November 2, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 40% on flights from Riverside to Puerto Rico by exploring options for tickets at noon.

What is the cheapest day to fly from Riverside to Puerto Rico?

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

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

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 November 2, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and JetBlue 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.
United Airlines
7.4
Good
8,993 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,993 reviews
United Airlines
7.4
Good
8,993 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
11,032 reviews
United Airlines
7.4
Good
8,993 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
JetBlue
7.2
Good
2,907 reviews
United Airlines
7.4
Good
8,993 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Spirit Airlines
6.3
Okay
8,120 reviews
United Airlines
7.4
Good
8,993 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Frontier
5.8
Fair
3,119 reviews
United Airlines
7.4
Good
8,993 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • How long is the flight from Riverside to Puerto Rico?

    Airlines like United Airlines, Southwest, and JetBlue fly from Riverside to Puerto Rico in about 10h 56m. The time it takes to get you to your destination can typically vary by up to 41m. The distance from Riverside to Puerto Rico is about 3380 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $148 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Frontier, with prices starting from $148 and $188, 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 - Aguadilla Borinquen or Los Angeles - Ponce Mercedita.

  • 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, April is the cheapest month in which you can book a flight from Riverside to Puerto Rico (average of $133). Flying from Riverside to Puerto Rico in November is currently the most expensive (average of $285). 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$394FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$231Average$383FlexibilityNo cancel feeOn-time65%
DeltaCheapest$247Average$540FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$275Average$554FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$323Average$578FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$329Average$541FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$403Average$606FlexibilityNo cancel feeOn-time63%

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