$140+ Cheap flights from Riverside, CA to San Juan
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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Riverside to San Juan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Riverside to San Juan are usually found in October or April, booked 13 days in advance, depart on a Tuesday or Monday and return on a Wednesday
Cheap flight deals from Riverside to San Juan
Keep the following information in mind while searching for Riverside to San Juan flight deals. Data was last updated October 30, 2025.
Round-trip from | $265 (Mytrip) |
|---|---|
One-way from | $140 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $371 |
Find flight deals from Riverside to San Juan
Cheapest flights from Riverside to San JuanExplore the most affordable flight options available from Riverside to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
Explore the most affordable flight options available from Riverside to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.
This Mytrip deal was found by Cheapflights users on 10/28. 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.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
This Frontier deal was found by Cheapflights users on 10/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
This Mytrip deal was found by Cheapflights users on 10/28. 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.
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Riverside to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Fri 11/28
5:00 am-6:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Fri 12/5
3:46 pm-11:20 pm
1 stop11h 34m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 1/20
6:25 am-11:10 pm
1 stop12h 45m
San Juan Luis Munoz Marin Intl
Sun 1/25
7:00 am-1:05 pm
1 stop10h 05m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 12/2
7:00 am-8:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Mon 12/15
7:00 am-12:17 pm
1 stop9h 17m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Fri 1/16
7:20 pm-1:05 pm
2 stops13h 45m
San Juan Luis Munoz Marin Intl
Thu 1/22
7:30 am-5:55 pm
1 stop14h 25m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sat 11/22
5:00 am-6:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Wed 12/3
2:05 am-11:39 am
1 stop13h 34m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sun 1/11
11:05 pm-3:40 pm
1 stop12h 35m
San Juan Luis Munoz Marin Intl
Mon 1/19
2:05 am-4:56 pm
2 stops18h 51m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sat 11/29
7:40 am-10:30 pm
2 stops10h 50m
San Juan Luis Munoz Marin Intl
Tue 12/16
8:55 am-4:00 pm
2 stops11h 05m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sun 1/18
7:35 am-9:26 pm
1 stop9h 51m
San Juan Luis Munoz Marin Intl
Sat 1/24
2:05 am-11:45 am
1 stop13h 40m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 1/27
5:50 am-10:22 pm
2 stops12h 32m
San Juan Luis Munoz Marin Intl
Fri 1/30
2:05 am-2:35 pm
2 stops16h 30m
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Wed 1/28
10:30 am-12:36 am
1 stop10h 06m
San Juan Luis Munoz Marin Intl
Mon 2/2
2:05 am-11:45 am
1 stop13h 40m
Best time to book a flight from Riverside to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Riverside with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Riverside to San Juan
How far ahead should I book a flight from Riverside to San Juan?
Use this chart to determine the optimal time to book a round-trip flight from Riverside to San Juan. Price data was last updated on October 24, 2025.
The best time to book flights from Riverside to San Juan is 13 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Riverside to San Juan?
Currently, April is the cheapest month in which you can book a flight from Riverside to San Juan (average of $133). Flying from Riverside to San Juan in November is currently the most expensive (average of $286). 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 SJU?
Find hourly flight availability from Riverside to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.
One of the essential ways to save on airfare from Riverside to San Juan is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 46% on airfare.
What is the cheapest day to fly from Riverside to San Juan?
Use this chart to determine the cheapest time to fly round-trip from Riverside to San Juan. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Riverside to San Juan flight should consider departing on Tuesday evenings 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.
How much does it cost to fly round-trip from Riverside to San Juan?
Reviews of airlines servicing San Juan
Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from Riverside to San Juan, such as United Airlines, American Airlines, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Thomas,Mar 2025
SFO - TPE
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Thomas,Mar 2025
SFO - TPE
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Thomas,Mar 2025
SFO - TPE
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Thomas,Mar 2025
SFO - TPE
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Thomas,Mar 2025
SFO - TPE
Overall
Boarding
Food
Crew
Entertainment
Comfort
Reviews
Thomas,Mar 2025
SFO - TPE
Related info for your journey
Find useful and relevant information for your journey from Riverside to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Riverside to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Riverside to San Juan
Discover the top 7 airlines that operate flights from Riverside to San Juan. 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 October 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$396 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$233 | Average$384 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$247 | Average$543 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$291 | Average$580 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$323 | Average$578 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$330 | Average$520 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$397 | Average$606 | FlexibilityNo cancel fee | On-time63% |