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 Spirit Airlines, with whom users have recently found tickets for as low as $136. However, be on the lookout for offers from Southwest and Frontier, as they are both options that can get you from Riverside to San Juan Luis Munoz Marin Intl Airport for a low price.

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 2.2 in.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

What are the most popular airlines that fly from Riverside to San Juan Luis Munoz Marin Intl Airport?

American Airlines, JetBlue and Delta are the most popular airlines when flying from Riverside to San Juan Luis Munoz Marin Intl Airport.

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

October is one of the best times of the year to fly to San Juan Luis Munoz Marin Intl Airport from Riverside. Prices for October average $464 per person but you can even find prices for as low as $221. The most expensive prices can be found in the month of December. Opting for a October flight can save you 41% on your journey compared to booking in December

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.

$136+ Flights from Riverside to San Juan Luis Munoz Marin Intl Airport

Q: How far in advance should I book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport?

Find a great deal and save up to 45% by booking at least 14 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Riverside to San Juan Luis Munoz Marin Intl Airport within the next two weeks, with the cheapest ticket starting at $333.

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Find cheap flights from Riverside to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl 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 Luis Munoz Marin Intl

Round-trip from	$281 (Kiwi.com)
One-way from	$136 (FlightHub)
Popular in	December
Cheapest in	October
Average price	$465

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. 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 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 August 2, 2025.

Fri 9/511:09 pmLAX - SJU

2 stops18h 47mSpirit Airlines

Sun 9/142:38 pmSJU - LAX

1 stop11h 38mSpirit Airlines

Deal found 8/2

$281

Thu 8/71:57 pmLAX - SJU

1 stop31h 35mFrontier

Fri 8/1512:59 amSJU - LAX

1 stop22h 30mFrontier

Deal found 7/31

$283

Thu 11/69:31 pmLAX - SJU

1 stop13h 44mMultiple Airlines

Mon 11/106:00 amSJU - LAX

2 stops30h 17mMultiple Airlines

Deal found 8/1

$285

Thu 10/212:56 amLAX - SJU

1 stop11h 46mUnited Airlines

Tue 10/74:55 pmSJU - LAX

1 stop10h 50mUnited Airlines

Deal found 8/1

$309

Best flights from Riverside to Luis Munoz Marin Intl
Discover carefully curated flight deals from Riverside to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2025.

Fri 9/511:09 pmLAX - SJU

2 stops18h 47mSpirit Airlines

Sun 9/142:38 pmSJU - LAX

1 stop11h 38mSpirit Airlines

Deal found 8/2

$281

Thu 8/71:57 pmLAX - SJU

1 stop31h 35mFrontier

Fri 8/1512:59 amSJU - LAX

1 stop22h 30mFrontier

Deal found 7/31

$283

Sat 8/912:12 amLAX - SJU

1 stop18h 38mMultiple Airlines

Tue 8/123:40 amSJU - LAX

1 stop16h 28mMultiple Airlines

Deal found 7/31

$290

Thu 10/212:56 amLAX - SJU

1 stop11h 46mUnited Airlines

Tue 10/74:55 pmSJU - LAX

1 stop10h 50mUnited Airlines

Deal found 8/1

$309

Last-minute flights from Riverside to Luis Munoz Marin Intl
Discover last-minute flight deals from Riverside to Luis Munoz Marin Intl. Data last updated August 2, 2025 and is based on user searches.

Thu 8/71:57 pmLAX - SJU

1 stop31h 35mFrontier

Fri 8/1512:59 amSJU - LAX

1 stop22h 30mFrontier

Deal found 7/31

$283

Sat 8/912:12 amLAX - SJU

1 stop18h 38mMultiple Airlines

Tue 8/123:40 amSJU - LAX

1 stop16h 28mMultiple Airlines

Deal found 7/31

$290

Mon 8/1112:12 amLAX - SJU

1 stop18h 38mSpirit Airlines

Fri 8/2210:10 amSJU - LAX

1 stop14h 35mSpirit Airlines

Deal found 8/1

$317

Fri 8/226:10 amLAX - SJU

1 stop13h 39mAmerican Airlines

Tue 8/267:05 pmSJU - LAX

1 stop17h 16mAmerican Airlines

Deal found 8/1

$339

Sat 8/3010:31 pmLAX - SJU

1 stop12h 46mSpirit Airlines

Sat 9/63:19 pmSJU - LAX

2 stops21h 54mSpirit Airlines

Deal found 8/1

$288

One-way flights from Riverside to Luis Munoz Marin Intl
Search for one-way flight options from Riverside to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated August 2, 2025.

Sun 9/710:59 pmLAX - SJU

2 stops12h 12mSpirit Airlines

Deal found 7/31

$136

Thu 8/71:57 pmLAX - SJU

1 stop31h 35mFrontier

Deal found 7/31

$141

Tue 9/307:25 pmLAX - SJU

2 stops14h 51mDelta

Deal found 7/31

$143

Tue 9/97:30 amLAX - SJU

1 stop12h 02mJetBlue

Deal found 7/31

$181

Tue 9/98:20 amLAX - SJU

1 stop12h 37mUnited Airlines

Deal found 7/31

$183

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Fri 9/5

11:09 pm-8:56 pm

2 stops18h 47m

San Juan Luis Munoz Marin Intl

Sun 9/14

2:38 pm-11:16 pm

1 stop11h 38m

$281

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Thu 8/7

1:57 pm-12:32 am

1 stop31h 35m

San Juan Luis Munoz Marin Intl

Fri 8/15

12:59 am-8:29 pm

1 stop22h 30m

$283

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Sat 8/9

12:12 am-9:50 pm

1 stop18h 38m

San Juan Luis Munoz Marin Intl

Tue 8/12

3:40 am-5:08 pm

1 stop16h 28m

$290

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Thu 10/2

12:56 am-3:42 pm

1 stop11h 46m

San Juan Luis Munoz Marin Intl

Tue 10/7

4:55 pm-12:45 am

1 stop10h 50m

$309

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Sun 9/7

10:59 pm-2:11 pm

2 stops12h 12m

$136

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Thu 8/7

1:57 pm-12:32 am

1 stop31h 35m

$141

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Tue 9/30

7:25 pm-1:16 pm

2 stops14h 51m

$143

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Tue 9/9

7:30 am-10:32 pm

1 stop12h 02m

$181

Los AngelesSan Juan

LAX - SJU

LAXSJU

Los Angeles

Tue 9/9

8:20 am-11:57 pm

1 stop12h 37m

$183

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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?

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 13 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, September is the cheapest month in which you can book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Riverside to San Juan Luis Munoz Marin Intl Airport 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?

When flying from Riverside to San Juan Luis Munoz Marin Intl Airport, 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 Luis Munoz Marin Intl Airport?

Travelers seeking maximum savings on their Riverside to San Juan Luis Munoz Marin Intl Airport 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.

Reviews of airlines servicing Luis Munoz Marin Intl

Read reviews from past customers who have flown Southwest, Delta, and United Airlines 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.

Southwest

8.0

Very good

4,246 reviews

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

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

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

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

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

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

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 Spirit Airlines, with whom users have recently found tickets for as low as $136. However, be on the lookout for offers from Southwest and Frontier, 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, September is the cheapest month in which you can book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Riverside to San Juan Luis Munoz Marin Intl Airport 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

Dorado

Fajardo

Rio Grande

Luquillo

Humacao

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Riverside to Luis Munoz Marin Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$73	Average$354	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$221	Average$376	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$247	Average$547	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$281	Average$494	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$317	Average$596	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$329	Average$581	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$404	Average$627	FlexibilityNo cancel fee	On-time63%

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$136+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Riverside to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Riverside to San Juan Luis Munoz Marin Intl 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 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 August 2, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Riverside to Luis Munoz Marin Intl

Cheapest flights from Riverside to Luis Munoz Marin IntlExplore 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 August 2, 2025.

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 August 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Riverside to San Juan Luis Munoz Marin Intl Airport that are best for you.

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.

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 July 25, 2025.

What is the cheapest month to book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport?

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 August 2, 2025.

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.

Reviews of airlines servicing Luis Munoz Marin Intl

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.

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

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

How can I 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?

What is the cheapest month to book a flight from Riverside to San Juan Luis Munoz Marin Intl Airport?

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

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Alternative routes for Riverside to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Riverside to Luis Munoz Marin Intl

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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 August 2, 2025.