$133+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJU
Oct 15 — Oct 221
1 adult, Economy
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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 September 15, 2025.
Round-trip from | $276 (Mytrip) |
|---|---|
One-way from | $133 (Cheapflightsfares) |
Popular in | December |
Cheapest in | October |
Average price | $445 |
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 September 15, 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 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.
Mon 9/229:31 pmLAX - SJU
1 stop11h 30mFrontier
Sat 9/2712:28 amSJU - LAX
1 stop23h 08mFrontier
Deal found 9/15![Frontier logo]()
$275
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/182:27 pmLAX - SJU
1 stop9h 03mFrontier
Wed 10/226:22 amSJU - LAX
1 stop11h 18mFrontier
Deal found 9/13![Frontier logo]()
$276
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.
Tue 9/307:35 amLAX - SJU
1 stop15h 23mMultiple Airlines
Mon 10/62:49 amSJU - LAX
1 stop32h 39mMultiple Airlines
Deal found 9/14![Multiple Airlines logo]()
$277
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/92:27 pmLAX - SJU
1 stop9h 03mFrontier
Tue 10/216:22 amSJU - LAX
1 stop11h 18mFrontier
Deal found 9/12![Frontier logo]()
$278
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/259:20 amLAX - SJU
2 stops22h 36mSpirit Airlines
Wed 10/293:19 pmSJU - LAX
2 stops19h 47mSpirit Airlines
Deal found 9/13![Spirit Airlines logo]()
$279
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.
Tue 10/212:27 pmLAX - SJU
1 stop9h 03mMultiple Airlines
Sun 10/264:04 pmSJU - LAX
1 stop10h 44mMultiple Airlines
Deal found 9/14![Multiple Airlines logo]()
$280
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:25 pmLAX - SJU
1 stop22h 34mMultiple Airlines
Thu 11/612:10 pmSJU - LAX
2 stops15h 56mMultiple Airlines
Deal found 9/13![Multiple Airlines logo]()
$281
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/119:20 amLAX - SJU
2 stops26h 39mMultiple Airlines
Fri 10/171:59 amSJU - LAX
1 stop21h 37mMultiple Airlines
Deal found 9/13![Multiple Airlines logo]()
$282
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.
Wed 11/512:57 amLAX - SJU
1 stop15h 47mMultiple Airlines
Mon 11/104:31 pmSJU - LAX
1 stop20h 40mMultiple Airlines
Deal found 9/14![Multiple Airlines logo]()
$283
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/192:21 pmLAX - SJU
1 stop9h 13mFrontier
Fri 10/1012:02 pmSJU - LAX
1 stop11h 34mFrontier
Deal found 9/14![Frontier logo]()
$284
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.
Thu 10/22:21 pmLAX - SJU
1 stop9h 13mMultiple Airlines
Mon 10/62:49 amSJU - LAX
1 stop32h 39mMultiple Airlines
Deal found 9/14![Multiple Airlines logo]()
$286
Cheapflights Fare Finder
Customize your flight search to find flights from Riverside to San Juan 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 Riverside to San Juan that are best for you.
Fly from
Riverside
Fly to
San Juan
Route
Depart
Return
Price
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 10/28
5:00 am-5:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Sat 11/1
4:50 pm-12:59 am
1 stop11h 09m
$291
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sun 10/26
5:00 am-5:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Tue 10/28
4:50 pm-12:59 am
1 stop11h 09m
$291
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 9/30
8:35 pm-12:42 pm
1 stop13h 07m
San Juan Luis Munoz Marin Intl
Wed 10/8
2:25 pm-1:41 am
1 stop14h 16m
$375
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 12/2
11:40 pm-1:17 pm
1 stop9h 37m
San Juan Luis Munoz Marin Intl
Thu 12/4
2:05 am-10:17 am
1 stop12h 12m
$375
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Mon 11/3
5:00 am-6:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Mon 11/10
2:05 am-11:39 am
1 stop13h 34m
$381
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Tue 10/28
5:00 am-5:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Mon 11/3
2:05 am-11:39 am
1 stop13h 34m
$381
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sat 12/13
6:00 am-10:22 pm
2 stops12h 22m
San Juan Luis Munoz Marin Intl
Tue 1/13
2:15 pm-11:52 pm
2 stops13h 37m
$385
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sat 11/1
10:57 pm-1:17 pm
1 stop11h 20m
San Juan Luis Munoz Marin Intl
Tue 11/4
2:05 am-10:37 am
1 stop12h 32m
$385
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Sat 10/4
5:31 am-11:57 pm
2 stops15h 26m
San Juan Luis Munoz Marin Intl
Fri 10/17
1:05 am-12:00 pm
1 stop13h 55m
$385
Los AngelesSan Juan
LAX - SJU
LAXSJU
Los Angeles
Fri 10/17
10:39 pm-12:16 pm
1 stop10h 37m
$133
Showing 1-10 of 19 results
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.
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 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 September 12, 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, September is the cheapest month in which you can book a flight from Riverside to San Juan (average of $254). Flying from Riverside to San Juan 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 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 September 15, 2025.
When flying from Riverside to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 Saturday 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.
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 September 15, 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.
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Comfort
7.3
Entertainment
7.1
Food
6.6
Overall
7.4
Crew
8.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayThomas,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 September 15, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$73 | Average$395 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$193 | Average$349 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$247 | Average$544 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$312 | Average$596 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$317 | Average$519 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$331 | Average$583 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$398 | Average$630 | FlexibilityNo cancel fee | On-time63% |