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Cheap flights from Puerto Rico to Los Angeles from $183

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Puerto Rico to Los Angeles departing on 9/30. 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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0 bags

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Find the cheapest flights from Puerto Rico to Los Angeles

Recent round-trip flight deals from Puerto Rico to Los Angeles

Frontier Logo
1:59 am - 3:32 pmSJU-ONT
16h 33m2 stops
Frontier Logo
5:15 pm - 3:24 pmONT-SJU
19h 09m2 stops
$328Frontier
Find Deal
mié., oct. 15 - lun., oct. 20
Frontier Logo
6:22 am - 11:50 pmSJU-ONT
20h 28m2 stops
Frontier Logo
6:53 am - 2:30 amONT-SJU
16h 37m2 stops
$330Frontier
Find Deal
mié., oct. 15 - mié., oct. 22
American Airlines Logo
7:10 am - 8:07 pmSJU-ONT
15h 57m1 stop
American Airlines Logo
10:34 pm - 8:58 pmONT-SJU
18h 24m1 stop
$356American Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8
JetBlue Logo
1:29 pm - 9:29 pmSJU-ONT
11h 00m1 stop
JetBlue Logo
10:56 pm - 2:54 pmONT-SJU
12h 58m1 stop
$398JetBlue
Find Deal
vie., oct. 3 - mar., oct. 7
American Airlines Logo
5:30 am - 3:24 pmSJU-ONT
12h 54m2 stops
American Airlines Logo
3:08 pm - 12:05 pmONT-SJU
16h 57m2 stops
$407American Airlines
Find Deal
sáb., nov. 1 - sáb., nov. 8
JetBlue Logo
6:00 am - 9:29 pmSJU-ONT
18h 29m1 stop
JetBlue Logo
10:56 pm - 4:57 pmONT-SJU
15h 01m1 stop
$441JetBlue
Find Deal
mié., oct. 15 - mié., oct. 22
United Airlines Logo
1:05 am - 12:33 pmSJU-ONT
14h 28m2 stops
United Airlines Logo
7:00 am - 9:00 pmONT-SJU
10h 00m1 stop
$520United Airlines
Find Deal
vie., oct. 31 - sáb., nov. 8
United Airlines Logo
7:00 am - 5:40 pmSJU-ONT
13h 40m2 stops
United Airlines Logo
6:00 am - 8:38 pmONT-SJU
11h 38m1 stop
$560United Airlines
Find Deal
vie., oct. 3 - mar., oct. 7
Delta Logo
2:26 pm - 10:23 pmSJU-ONT
10h 57m1 stop
Delta Logo
5:50 pm - 11:56 amONT-SJU
15h 06m2 stops
$585Delta
Find Deal
mar., sep. 30 - sáb., oct. 11
Delta Logo
12:58 pm - 7:15 pmSJU-ONT
9h 17m1 stop
Delta Logo
7:05 am - 10:00 pmONT-SJU
11h 55m1 stop
$615Delta
Find Deal
sáb., sep. 27 - mar., sep. 30

JetBlue flights from Puerto Rico to Ontario

Our best JetBlue deals on Puerto Rico to Ontario flight tickets
JetBlue
Oct 3
SJU1:29 pmSan Juan Luis Munoz Marin Intl
11h 00m
1 stop
ONT9:29 pmOntario
Oct 7
ONT10:56 pmOntario
12h 58m
1 stop
SJU2:54 pmSan Juan Luis Munoz Marin Intl
$398
Find similar
JetBlue
Oct 15
SJU6:00 amSan Juan Luis Munoz Marin Intl
18h 29m
1 stop
ONT9:29 pmOntario
Oct 22
ONT10:56 pmOntario
15h 01m
1 stop
SJU4:57 pmSan Juan Luis Munoz Marin Intl
$441
Find similar
JetBlue
Oct 4
SJU1:29 pmSan Juan Luis Munoz Marin Intl
11h 00m
1 stop
ONT9:29 pmOntario
Oct 18
ONT10:56 pmOntario
12h 58m
1 stop
SJU2:54 pmSan Juan Luis Munoz Marin Intl
$455
Find similar

American Airlines flights from Puerto Rico to Ontario

Our best American Airlines deals on Puerto Rico to Ontario flight tickets
American Airlines
Nov 1
SJU7:10 amSan Juan Luis Munoz Marin Intl
15h 57m
1 stop
ONT8:07 pmOntario
Nov 8
ONT10:34 pmOntario
18h 24m
1 stop
SJU8:58 pmSan Juan Luis Munoz Marin Intl
$356
Find similar
American Airlines
Nov 1
SJU5:30 amSan Juan Luis Munoz Marin Intl
12h 54m
2 stops
ONT3:24 pmOntario
Nov 8
ONT3:08 pmOntario
16h 57m
2 stops
SJU12:05 pmSan Juan Luis Munoz Marin Intl
$407
Find similar
American Airlines
Feb 27
SJU4:45 pmSan Juan Luis Munoz Marin Intl
22h 50m
2 stops
ONT11:35 amOntario
Mar 2
ONT11:55 pmOntario
10h 48m
1 stop
SJU2:43 pmSan Juan Luis Munoz Marin Intl
$461
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Puerto Rico 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Puerto Rico 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

mié. 10/15

1:59 am-3:32 pm

2 stops16h 33m

Ontario

lun. 10/20

5:15 pm-3:24 pm

2 stops19h 09m

$328

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

mié. 10/15

6:22 am-11:50 pm

2 stops20h 28m

Ontario

mié. 10/22

6:53 am-2:30 am

2 stops16h 37m

$330

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

sáb. 11/1

7:10 am-8:07 pm

1 stop15h 57m

Ontario

sáb. 11/8

10:34 pm-8:58 pm

1 stop18h 24m

$356

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

vie. 10/3

1:29 pm-9:29 pm

1 stop11h 00m

Ontario

mar. 10/7

10:56 pm-2:54 pm

1 stop12h 58m

$398

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

sáb. 11/1

5:30 am-3:24 pm

2 stops12h 54m

Ontario

sáb. 11/8

3:08 pm-12:05 pm

2 stops16h 57m

$407

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

mié. 10/15

6:00 am-9:29 pm

1 stop18h 29m

Ontario

mié. 10/22

10:56 pm-4:57 pm

1 stop15h 01m

$441

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

vie. 10/31

1:05 am-12:33 pm

2 stops14h 28m

Ontario

sáb. 11/8

7:00 am-9:00 pm

1 stop10h 00m

$520

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

vie. 10/3

7:00 am-5:40 pm

2 stops13h 40m

Ontario

mar. 10/7

6:00 am-8:38 pm

1 stop11h 38m

$560

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

mar. 9/30

2:26 pm-10:23 pm

1 stop10h 57m

Ontario

sáb. 10/11

5:50 pm-11:56 am

2 stops15h 06m

$585

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

sáb. 9/27

12:58 pm-7:15 pm

1 stop9h 17m

Ontario

mar. 9/30

7:05 am-10:00 pm

1 stop11h 55m

$615

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Puerto Rico 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 Puerto Rico 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 Puerto Rico during March instead. Flights to Ontario in March, while not as cheap as those in July, still average around $351.

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 Puerto Rico 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 Puerto Rico 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 Puerto Rico in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Puerto Rico to Ontario flights?

You could potentially save up to 18% on your flight if you consider stops on a Puerto Rico to Ontario flight.

Cheap Puerto Rico to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Puerto Rico to Ontario

Direct flights

None
There are no direct flights from Puerto Rico to Ontario. There are no popular flight routes from Puerto Rico to Ontario.
Search flight deals

  • When did momondo last update prices for flights from Puerto Rico to Ontario Airport?

    Prices for flights from Puerto Rico to Ontario Airport were last updated today.

  • How many operators does momondo search for flights from Puerto Rico to Ontario Airport?

  • How old do you have to be to fly from Puerto Rico to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Puerto Rico to Ontario Airport.

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

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Puerto Rico to Ontario

Compare and see reviews for airlines that fly from Puerto Rico to Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $344Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $355Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $433Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Puerto Rico to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Puerto Rico to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Puerto Rico to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Puerto Rico on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Puerto Rico to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Puerto Rico to Ontario.

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

Yes. momondo can track prices for Puerto Rico to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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