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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Los Angeles from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Los Angeles departing on 12/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:06 pm - 7:24 am
SJU
-
ONT
16h 18m1 stop
Frontier Logo
4:41 pm - 6:34 am
ONT
-
SJU
9h 53m1 stop
$264Frontier
Mon, Dec 22 - Tue, Dec 30
American Airlines Logo
6:00 am - 6:45 pm
SJU
-
ONT
16h 45m2 stops
American Airlines Logo
12:57 pm - 10:48 am
ONT
-
SJU
17h 51m2 stops
$283American Airlines
Tue, Jan 13 - Sat, Jan 17
American Airlines Logo
6:00 am - 2:18 pm
SJU
-
ONT
12h 18m2 stops
American Airlines Logo
7:30 pm - 10:48 am
ONT
-
SJU
11h 18m2 stops
$308American Airlines
Wed, Jan 14 - Sun, Jan 18
JetBlue Logo
1:50 pm - 10:09 pm
SJU
-
ONT
11h 19m1 stop
JetBlue Logo
11:25 pm - 1:47 pm
ONT
-
SJU
11h 22m1 stop
$368JetBlue
Fri, May 1 - Fri, May 8
American Airlines Logo
6:00 am - 4:05 pm
SJU
-
ONT
14h 05m2 stops
American Airlines Logo
3:09 pm - 10:48 am
ONT
-
SJU
15h 39m2 stops
$371American Airlines
Tue, Jan 13 - Sat, Jan 17
United Airlines Logo
2:25 pm - 8:58 pm
SJU
-
ONT
10h 33m1 stop
United Airlines Logo
6:00 am - 9:26 pm
ONT
-
SJU
11h 26m1 stop
$373United Airlines
Wed, Jan 14 - Sun, Jan 18
JetBlue Logo
1:50 pm - 10:09 pm
SJU
-
ONT
11h 19m1 stop
JetBlue Logo
11:25 pm - 12:49 pm
ONT
-
SJU
10h 24m1 stop
$400JetBlue
Sat, May 23 - Sun, May 31
United Airlines Logo
3:46 pm - 9:58 pm
SJU
-
ONT
10h 12m1 stop
United Airlines Logo
6:00 am - 9:26 pm
ONT
-
SJU
11h 26m1 stop
$431United Airlines
Thu, Jan 29 - Sat, Jan 31
Frontier Logo
7:06 pm - 7:24 am
SJU
-
ONT
16h 18m1 stop
Frontier Logo
4:16 pm - 6:34 am
ONT
-
SJU
10h 18m1 stop
$435Frontier
Sat, Dec 27 - Thu, Jan 1
American Airlines Logo
7:07 am - 6:45 pm
SJU
-
ONT
15h 38m1 stop
American Airlines Logo
4:45 pm - 10:48 am
ONT
-
SJU
14h 03m2 stops
$459American Airlines
Tue, Jan 13 - Sat, Jan 17

American Airlines flights from San Juan Luis Munoz Marin Intl Airport to Ontario

Our best American Airlines deals on San Juan Luis Munoz Marin Intl Airport to Ontario flight tickets
American Airlines
Jan 13
SJU6:00 amSan Juan Luis Munoz Marin Intl
16h 45m
2 stops
ONT6:45 pmOntario
Jan 17
ONT12:57 pmOntario
17h 51m
2 stops
SJU10:48 amSan Juan Luis Munoz Marin Intl
$283
Find similar
American Airlines
Jan 14
SJU6:00 amSan Juan Luis Munoz Marin Intl
12h 18m
2 stops
ONT2:18 pmOntario
Jan 18
ONT7:30 pmOntario
11h 18m
2 stops
SJU10:48 amSan Juan Luis Munoz Marin Intl
$308
Find similar
American Airlines
Jan 13
SJU6:00 amSan Juan Luis Munoz Marin Intl
14h 05m
2 stops
ONT4:05 pmOntario
Jan 17
ONT3:09 pmOntario
15h 39m
2 stops
SJU10:48 amSan Juan Luis Munoz Marin Intl
$371
Find similar

JetBlue flights from San Juan Luis Munoz Marin Intl Airport to Ontario

Our best JetBlue deals on San Juan Luis Munoz Marin Intl Airport to Ontario flight tickets
JetBlue
May 1
SJU1:50 pmSan Juan Luis Munoz Marin Intl
11h 19m
1 stop
ONT10:09 pmOntario
May 8
ONT11:25 pmOntario
11h 22m
1 stop
SJU1:47 pmSan Juan Luis Munoz Marin Intl
$368
Find similar
JetBlue
May 23
SJU1:50 pmSan Juan Luis Munoz Marin Intl
11h 19m
1 stop
ONT10:09 pmOntario
May 31
ONT11:25 pmOntario
10h 24m
1 stop
SJU12:49 pmSan Juan Luis Munoz Marin Intl
$400
Find similar
JetBlue
May 30
SJU1:50 pmSan Juan Luis Munoz Marin Intl
11h 19m
1 stop
ONT10:09 pmOntario
Jun 6
ONT11:25 pmOntario
11h 22m
1 stop
SJU1:47 pmSan Juan Luis Munoz Marin Intl
$460
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan Luis Munoz Marin Intl Airport to Ontario 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, momondo users made 832,500 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Mon 12/22

7:06 pm-7:24 am

1 stop16h 18m

Ontario

Tue 12/30

4:41 pm-6:34 am

1 stop9h 53m

$264

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 1/13

6:00 am-6:45 pm

2 stops16h 45m

Ontario

Sat 1/17

12:57 pm-10:48 am

2 stops17h 51m

$283

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 1/14

6:00 am-2:18 pm

2 stops12h 18m

Ontario

Sun 1/18

7:30 pm-10:48 am

2 stops11h 18m

$308

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 5/1

1:50 pm-10:09 pm

1 stop11h 19m

Ontario

Fri 5/8

11:25 pm-1:47 pm

1 stop11h 22m

$368

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 1/13

6:00 am-4:05 pm

2 stops14h 05m

Ontario

Sat 1/17

3:09 pm-10:48 am

2 stops15h 39m

$371

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 1/14

2:25 pm-8:58 pm

1 stop10h 33m

Ontario

Sun 1/18

6:00 am-9:26 pm

1 stop11h 26m

$373

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 5/23

1:50 pm-10:09 pm

1 stop11h 19m

Ontario

Sun 5/31

11:25 pm-12:49 pm

1 stop10h 24m

$400

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Thu 1/29

3:46 pm-9:58 pm

1 stop10h 12m

Ontario

Sat 1/31

6:00 am-9:26 pm

1 stop11h 26m

$431

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 12/27

7:06 pm-7:24 am

1 stop16h 18m

Ontario

Thu 1/1

4:16 pm-6:34 am

1 stop10h 18m

$435

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 1/13

7:07 am-6:45 pm

1 stop15h 38m

Ontario

Sat 1/17

4:45 pm-10:48 am

2 stops14h 03m

$459

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from San Juan Luis Munoz Marin Intl Airport to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ontario?

In general, July is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $333. If you aren’t able to travel during the month of July, then book flights to Ontario from San Juan Luis Munoz Marin Intl Airport during March instead. Flights to Ontario in March, while not as cheap as those in July, still average around $358.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $364. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Juan Luis Munoz Marin Intl Airport to Ontario for around $734.

What is the cheapest time of day to depart on your flight to Ontario?

In the morning is the cheapest time of day to fly from San Juan Luis Munoz Marin Intl Airport to Ontario when you can find flight prices for as low as $363. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $665 on average. Flights to Ontario from San Juan Luis Munoz Marin Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on San Juan Luis Munoz Marin Intl Airport to Ontario flights?

You could potentially save up to 22% on your flight if you consider stops on a San Juan Luis Munoz Marin Intl Airport to Ontario flight.

How have San Juan Luis Munoz Marin Intl Airport to Ontario flight prices changed over time?

As of December 2025, prices for San Juan Luis Munoz Marin Intl Airport to Ontario flights are approximately 18% more expensive when compared to flights at the same time last year.

When to book flights from San Juan Luis Munoz Marin Intl Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from San Juan Luis Munoz Marin Intl Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Juan Luis Munoz Marin Intl Airport to Ontario (SJU to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan Luis Munoz Marin Intl Airport to Ontario

Fastest flight time

9h 26m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Ontario takes 9h 26m
There are no direct flights from San Juan Luis Munoz Marin Intl Airport to Ontario. There are no popular flight routes from San Juan Luis Munoz Marin Intl Airport to Ontario.
Search flight deals

  • How far is San Juan Luis Munoz Marin Intl to Ontario by plane?

    A flight from San Juan Luis Munoz Marin Intl to Ontario will travel around 3337.2 mi. By plane, this route typically takes 9h 40m.

  • When did momondo last update prices for flights from San Juan Luis Munoz Marin Intl Airport to Ontario Airport?

    Prices for flights from San Juan Luis Munoz Marin Intl Airport to Ontario Airport were last updated today.

  • How many operators does momondo search for flights from San Juan Luis Munoz Marin Intl Airport to Ontario Airport?

  • How old do you have to be to fly from San Juan Luis Munoz Marin Intl Airport to Ontario Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Juan Luis Munoz Marin Intl Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from San Juan Luis Munoz Marin Intl Airport to Ontario?

Best airlines flying from San Juan Luis Munoz Marin Intl Airport to Ontario

Compare and see reviews for airlines that fly from San Juan Luis Munoz Marin Intl Airport to Ontario with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $355Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $433Free CancellationRating
7.4
9,089 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Juan to Ontario?

Finding the right flight to Ontario from San Juan is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

Can I find flights from San Juan to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Juan to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from San Juan to Ontario?

momondo provides multiple filters to help you find the best flight to Ontario from San Juan. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San Juan to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from San Juan are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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