Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Juan Luis Munoz Marin Intl Airport to Los Angeles from $175

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 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Los Angeles

Cheap round-trip flights

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
Wed, Oct 15 - Mon, 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
$333Frontier
Find Deal
Wed, Oct 15 - Wed, Oct 22
JetBlue Logo
1:25 pm - 9:29 pmSJU-ONT
11h 04m1 stop
JetBlue Logo
10:56 pm - 1:45 pmONT-SJU
11h 49m1 stop
$366JetBlue
Find Deal
Wed, Oct 22 - Fri, Oct 24
Frontier Logo
12:28 am - 3:24 pmSJU-ONT
17h 56m2 stops
Frontier Logo
3:43 pm - 3:22 pmONT-SJU
20h 39m2 stops
$420Frontier
Find Deal
Sat, Sep 27 - Thu, Oct 2
JetBlue Logo
1:29 pm - 9:29 pmSJU-ONT
11h 00m1 stop
JetBlue Logo
10:56 pm - 2:54 pmONT-SJU
12h 58m1 stop
$425JetBlue
Find Deal
Sat, Oct 4 - Sat, Oct 18
American Airlines Logo
4:45 pm - 11:35 amSJU-ONT
22h 50m2 stops
American Airlines Logo
3:05 pm - 4:55 amONT-SJU
9h 50m1 stop
$461American Airlines
Find Deal
Fri, Feb 27 - Mon, Mar 2
American Airlines Logo
12:01 pm - 9:24 pmSJU-ONT
12h 23m2 stops
American Airlines Logo
6:15 am - 9:14 pmONT-SJU
11h 59m2 stops
$470American Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 18
United Airlines Logo
2:55 pm - 9:24 pmSJU-ONT
9h 29m1 stop
United Airlines Logo
6:36 pm - 12:00 pmONT-SJU
14h 24m2 stops
$480United Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 18
United Airlines Logo
7:45 am - 8:44 pmSJU-ONT
16h 59m2 stops
United Airlines Logo
7:00 am - 9:00 pmONT-SJU
10h 00m1 stop
$519United Airlines
Find Deal
Tue, Nov 18 - Thu, Nov 27
Delta Logo
12:58 pm - 7:15 pmSJU-ONT
9h 17m1 stop
Delta Logo
5:40 pm - 4:20 pmONT-SJU
19h 40m2 stops
$615Delta
Find Deal
Sat, Sep 27 - Tue, Sep 30

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

Our best Frontier deals on San Juan Luis Munoz Marin Intl Airport to Ontario flight tickets
Frontier
Oct 15
SJU1:59 amSan Juan Luis Munoz Marin Intl
16h 33m
2 stops
ONT3:32 pmOntario
Oct 20
ONT5:15 pmOntario
19h 09m
2 stops
SJU3:24 pmSan Juan Luis Munoz Marin Intl
$328
Find similar
Frontier
Oct 15
SJU6:22 amSan Juan Luis Munoz Marin Intl
20h 28m
2 stops
ONT11:50 pmOntario
Oct 22
ONT6:53 amOntario
16h 37m
2 stops
SJU2:30 amSan Juan Luis Munoz Marin Intl
$333
Find similar
Frontier
Sep 27
SJU12:28 amSan Juan Luis Munoz Marin Intl
17h 56m
2 stops
ONT3:24 pmOntario
Oct 2
ONT3:43 pmOntario
20h 39m
2 stops
SJU3:22 pmSan Juan Luis Munoz Marin Intl
$420
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
Oct 22
SJU1:25 pmSan Juan Luis Munoz Marin Intl
11h 04m
1 stop
ONT9:29 pmOntario
Oct 24
ONT10:56 pmOntario
11h 49m
1 stop
SJU1:45 pmSan Juan Luis Munoz Marin Intl
$366
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
$425
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
12h 58m
1 stop
SJU2:54 pmSan Juan Luis Munoz Marin Intl
$441
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 September 15, 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

Wed 10/15

1:59 am-3:32 pm

2 stops16h 33m

Ontario

Mon 10/20

5:15 pm-3:24 pm

2 stops19h 09m

$328

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 10/15

6:22 am-11:50 pm

2 stops20h 28m

Ontario

Wed 10/22

6:53 am-2:30 am

2 stops16h 37m

$333

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 10/22

1:25 pm-9:29 pm

1 stop11h 04m

Ontario

Fri 10/24

10:56 pm-1:45 pm

1 stop11h 49m

$366

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 9/27

12:28 am-3:24 pm

2 stops17h 56m

Ontario

Thu 10/2

3:43 pm-3:22 pm

2 stops20h 39m

$420

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 10/4

1:29 pm-9:29 pm

1 stop11h 00m

Ontario

Sat 10/18

10:56 pm-2:54 pm

1 stop12h 58m

$425

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 2/27

4:45 pm-11:35 am

2 stops22h 50m

Ontario

Mon 3/2

3:05 pm-4:55 am

1 stop9h 50m

$461

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 10/4

12:01 pm-9:24 pm

2 stops12h 23m

Ontario

Sat 10/18

6:15 am-9:14 pm

2 stops11h 59m

$470

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 10/4

2:55 pm-9:24 pm

1 stop9h 29m

Ontario

Sat 10/18

6:36 pm-12:00 pm

2 stops14h 24m

$480

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 11/18

7:45 am-8:44 pm

2 stops16h 59m

Ontario

Thu 11/27

7:00 am-9:00 pm

1 stop10h 00m

$519

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 9/27

12:58 pm-7:15 pm

1 stop9h 17m

Ontario

Tue 9/30

5:40 pm-4:20 pm

2 stops19h 40m

$615

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between San Juan Luis Munoz Marin Intl Airport and Ontario?

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 $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 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 26% 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 September 2025, prices for San Juan Luis Munoz Marin Intl Airport to Ontario flights are approximately 4% cheaper 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

Direct flights

None
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 17m.

  • 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
DeltaPriceFrom $344Free CancellationRating
7.9
7,954 reviews
Search Delta flights
American AirlinesPriceFrom $355Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $433Free CancellationRating
7.4
8,929 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.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States