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Luis Munoz Marin Intl

$147+ Cheap flights from Riverside, CA to Luis Munoz Marin Intl (SJU)

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SJU
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to San Juan Luis Munoz Marin Intl are usually found in October or April, booked 35 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Riverside to Luis Munoz Marin Intl

Cheapest flights from Riverside to Luis Munoz Marin Intl
Explore the most affordable flight options available from Riverside to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Frontier deal was found by Cheapflights users on 12/17. 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.
Tue 12/308:37 amLAX - SJU
1 stop12h 57mFrontier
Wed 1/77:35 amSJU - LAX
1 stop10h 44mFrontier
Deal found 12/17$304
This Frontier deal was found by Cheapflights users on 12/17. 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 12/3111:59 pmLAX - SJU
1 stop12h 00mFrontier
Wed 1/77:35 amSJU - LAX
1 stop10h 44mFrontier
Deal found 12/17$308
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/2911:59 pmLAX - SJU
1 stop22h 51mFrontier
Wed 1/77:35 amSJU - LAX
1 stop10h 44mFrontier
Deal found 12/16$311
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/308:37 amLAX - SJU
1 stop12h 57mMultiple Airlines
Fri 1/910:47 pmSJU - LAX
2 stops36h 28mMultiple Airlines
Deal found 12/16$313
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/308:37 amLAX - SJU
1 stop12h 57mFrontier
Sat 1/106:15 amSJU - LAX
2 stops15h 33mFrontier
Deal found 12/16$314
This Frontier deal was found by Cheapflights users on 12/16. 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.
Tue 12/308:37 amLAX - SJU
1 stop12h 57mFrontier
Sun 1/117:35 amSJU - LAX
1 stop10h 32mFrontier
Deal found 12/16$318
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/3111:59 pmLAX - SJU
1 stop12h 00mFrontier
Sat 1/106:15 amSJU - LAX
2 stops15h 33mFrontier
Deal found 12/16$319
This Frontier deal was found by Cheapflights users on 12/16. 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 12/3111:59 pmLAX - SJU
1 stop12h 00mFrontier
Sun 1/117:35 amSJU - LAX
1 stop10h 32mFrontier
Deal found 12/16$322
This Frontier deal was found by Cheapflights users on 12/16. 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.
Sun 12/218:37 amLAX - SJU
1 stop13h 00mFrontier
Thu 12/2510:33 amSJU - LAX
1 stop11h 30mFrontier
Deal found 12/16$325
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/2311:59 pmLAX - SJU
1 stop16h 28mFrontier
Thu 12/257:00 amSJU - LAX
1 stop11h 03mFrontier
Deal found 12/16$327
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/2211:59 pmLAX - SJU
1 stop9h 35mFrontier
Thu 12/2510:33 amSJU - LAX
1 stop11h 30mFrontier
Deal found 12/17$329
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 12/2411:59 pmLAX - SJU
1 stop9h 35mFrontier
Thu 12/259:37 pmSJU - LAX
1 stop24h 26mFrontier
Deal found 12/16$332

Find flight deals from Riverside to Luis Munoz Marin Intl

Keep the following information in mind while searching for Riverside to Luis Munoz Marin Intl flight deals. Data was last updated December 18, 2025.

Round-trip from

$287
(Kiwi.com)

One-way from

$147
(Booking.com)

Popular in

December

Cheapest in

October

Average price

$574
From Riverside to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Riverside to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Luis Munoz Marin Intl 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 December 18, 2025.
Use the filters below to find and compare flights from Riverside to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Riverside

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Wed 1/7

2:38 pm-12:27 pm

1 stop17h 49m

San Juan Luis Munoz Marin Intl

Wed 1/21

7:44 pm-7:15 am

1 stop15h 31m

$294

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Thu 1/22

8:30 am-11:45 pm

1 stop11h 15m

San Juan Luis Munoz Marin Intl

Fri 2/6

7:00 am-4:58 pm

1 stop13h 58m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Sun 1/25

10:20 pm-2:10 pm

1 stop11h 50m

San Juan Luis Munoz Marin Intl

Wed 2/4

7:00 am-2:25 pm

1 stop11h 25m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Tue 1/27

9:55 pm-1:06 pm

1 stop11h 11m

San Juan Luis Munoz Marin Intl

Wed 2/4

7:00 am-2:25 pm

1 stop11h 25m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Sat 1/24

10:20 pm-2:10 pm

1 stop11h 50m

San Juan Luis Munoz Marin Intl

Wed 2/4

7:00 am-6:53 pm

1 stop15h 53m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Thu 2/19

8:25 am-11:58 pm

1 stop11h 33m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:00 am-4:49 pm

2 stops13h 49m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Wed 2/11

6:00 am-8:58 pm

1 stop10h 58m

San Juan Luis Munoz Marin Intl

Tue 2/24

7:30 am-1:22 pm

1 stop9h 52m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 2/20

7:20 am-11:58 pm

1 stop12h 38m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:00 am-4:49 pm

2 stops13h 49m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Thu 2/19

8:25 am-11:58 pm

1 stop11h 33m

San Juan Luis Munoz Marin Intl

Tue 2/24

7:00 am-4:49 pm

2 stops13h 49m

$295

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Wed 1/21

8:00 am-11:59 pm

1 stop11h 59m

San Juan Luis Munoz Marin Intl

Thu 2/5

11:06 am-8:58 pm

1 stop13h 52m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 21 results
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2
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Best time to book a flight from Riverside to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Luis Munoz Marin Intl. Price data was last updated on December 12, 2025.

The price you pay for your flight from Riverside to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 23 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 Riverside to San Juan Luis Munoz Marin Intl Airport?

Currently, April is the cheapest month in which you can book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport (average of $137). Flying from Riverside to San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from Riverside to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 65% on airfare.

What is the cheapest day to fly from Riverside to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Luis Munoz Marin Intl. Price data was last updated on May 25, 2025.

Travelers seeking maximum savings on their Riverside to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and JetBlue from Riverside to San Juan Luis Munoz Marin Intl Airport. 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.
United Airlines
7.4
Good
9,093 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
9,093 reviews
United Airlines
7.4
Good
9,093 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
11,055 reviews
United Airlines
7.4
Good
9,093 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
2,897 reviews
United Airlines
7.4
Good
9,093 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
8,190 reviews
United Airlines
7.4
Good
9,093 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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
3,081 reviews
United Airlines
7.4
Good
9,093 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

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 Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl Airport?

    Spirit Airlines and Delta can get you from Riverside to San Juan Luis Munoz Marin Intl Airport in just under 11h 15m. Your travel time can differ by up to 6h 34m. The distance between Riverside and San Juan Luis Munoz Marin Intl Airport is about 3380 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Riverside to San Juan Luis Munoz Marin Intl Airport one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $85. However, be on the lookout for offers from Spirit Airlines and United Airlines, as they are both options that can get you from Riverside to San Juan Luis Munoz Marin Intl Airport for a low price.

  • Can I find deals for flights from Riverside to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Riverside to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Riverside to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Riverside to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport?

    Currently, April is the cheapest month in which you can book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport (average of $137). Flying from Riverside to San Juan Luis Munoz Marin Intl Airport 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.

See more FAQs

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Humacao
Luquillo
Bayamón

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Alternative routes for Riverside to Luis Munoz Marin Intl

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Top 7 airlines flying from Riverside to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Riverside to Luis Munoz Marin Intl. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$73Average$401FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$226Average$373FlexibilityNo cancel feeOn-time65%
DeltaCheapest$272Average$519FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$292Average$569FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$307Average$504FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$328Average$583FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$388Average$637FlexibilityNo cancel feeOn-time63%

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