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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 9/24. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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.
American Airlines Logo
11:51 am - 10:43 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
13h 52m2 stops Miami Phoenix Sky Harbor Intl
American Airlines Logo
1:04 pm - 11:00 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
18h 56m2 stops Phoenix Sky Harbor Intl Miami
$342American Airlines
Thu, Sep 24 - Mon, Sep 28
American Airlines Logo
4:19 pm - 9:29 amSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
20h 10m1 stop Dallas/Fort Worth
American Airlines Logo
1:04 pm - 11:00 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
18h 56m2 stops Phoenix Sky Harbor Intl Miami
$342American Airlines
Thu, Sep 24 - Mon, Sep 28
American Airlines Logo
6:20 am - 6:44 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
15h 24m2 stops Miami Dallas/Fort Worth
American Airlines Logo
7:34 pm - 11:20 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
12h 46m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
$349American Airlines
Wed, Oct 14 - Sun, Oct 18
United Airlines Logo
2:00 pm - 8:58 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
9h 58m1 stop Denver Intl
United Airlines Logo
6:00 am - 8:38 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
11h 38m1 stop Houston George Bush Intcntl
$414United Airlines
Thu, Sep 24 - Mon, Sep 28
Delta Logo
1:55 pm - 9:59 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 04m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:10 pm - 12:45 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
9h 35m1 stop Atlanta Hartsfield-Jackson
$426Delta
Thu, Nov 12 - Sun, Nov 15
American Airlines Logo
6:28 am - 10:12 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
19h 44m1 stop Charlotte Douglas
American Airlines Logo
6:00 am - 12:16 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
14h 16m1 stop Dallas/Fort Worth
$442American Airlines
Wed, Nov 11 - Sun, Nov 15
Southwest Logo
5:00 am - 2:00 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 00m2 stops Orlando Denver Intl
Southwest Logo
8:40 pm - 11:00 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
11h 20m2 stops Phoenix Sky Harbor Intl Orlando
$479Southwest
Thu, Sep 24 - Mon, Sep 28
Delta Logo
8:15 am - 6:22 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
14h 07m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:10 pm - 12:45 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
9h 35m1 stop Atlanta Hartsfield-Jackson
$488Delta
Sun, Nov 8 - Sun, Nov 15
United Airlines Logo
2:00 pm - 8:58 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
9h 58m1 stop Denver Intl
United Airlines Logo
7:00 am - 9:00 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
10h 00m1 stop Chicago O'Hare Intl
$504United Airlines
Wed, Oct 21 - Sun, Nov 1
United Airlines Logo
2:00 pm - 8:58 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
9h 58m1 stop Denver Intl
United Airlines Logo
6:00 am - 8:38 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
11h 38m1 stop Houston George Bush Intcntl
$504United Airlines
Fri, Oct 2 - Mon, Oct 5

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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
Sep 24
SJU4:19 pmSan Juan Luis Munoz Marin Intl
20h 10m
1 stop
ONT9:29 amOntario
Sep 28
ONT1:04 pmOntario
18h 56m
2 stops
SJU11:00 amSan Juan Luis Munoz Marin Intl
$342
American Airlines
Oct 14
SJU6:20 amSan Juan Luis Munoz Marin Intl
15h 24m
2 stops
ONT6:44 pmOntario
Oct 18
ONT7:34 pmOntario
12h 46m
2 stops
SJU11:20 amSan Juan Luis Munoz Marin Intl
$349
American Airlines
Nov 11
SJU6:28 amSan Juan Luis Munoz Marin Intl
19h 44m
1 stop
ONT10:12 pmOntario
Nov 15
ONT6:00 amOntario
14h 16m
1 stop
SJU12:16 amSan Juan Luis Munoz Marin Intl
$442

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

Our best United Airlines deals on San Juan Luis Munoz Marin Intl Airport to Ontario flight tickets
United Airlines
Sep 24
SJU2:00 pmSan Juan Luis Munoz Marin Intl
9h 58m
1 stop
ONT8:58 pmOntario
Sep 28
ONT6:00 amOntario
11h 38m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
$414
United Airlines
Sep 2
SJU7:00 amSan Juan Luis Munoz Marin Intl
14h 16m
2 stops
ONT6:16 pmOntario
Sep 13
ONT6:00 amOntario
11h 38m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
$504
United Airlines
Sep 10
SJU2:20 pmSan Juan Luis Munoz Marin Intl
10h 39m
1 stop
ONT9:59 pmOntario
Sep 25
ONT5:00 amOntario
9h 38m
1 stop
SJU5:38 pmSan Juan Luis Munoz Marin Intl
$505

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 August 14, 2026.
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

Cheapest round-trip

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Thu 9/24

11:51 am-10:43 pm

2 stops13h 52m

Ontario

Mon 9/28

1:04 pm-11:00 am

2 stops18h 56m

$342

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Thu 9/24

4:19 pm-9:29 am

1 stop20h 10m

Ontario

Mon 9/28

1:04 pm-11:00 am

2 stops18h 56m

$342

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Wed 10/14

6:20 am-6:44 pm

2 stops15h 24m

Ontario

Sun 10/18

7:34 pm-11:20 am

2 stops12h 46m

$349

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Thu 9/24

2:00 pm-8:58 pm

1 stop9h 58m

Ontario

Mon 9/28

6:00 am-8:38 pm

1 stop11h 38m

$414

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Thu 11/12

1:55 pm-9:59 pm

1 stop12h 04m

Ontario

Sun 11/15

11:10 pm-12:45 pm

1 stop9h 35m

$426

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Wed 11/11

6:28 am-10:12 pm

1 stop19h 44m

Ontario

Sun 11/15

6:00 am-12:16 am

1 stop14h 16m

$442

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Thu 9/24

5:00 am-2:00 pm

2 stops12h 00m

Ontario

Mon 9/28

8:40 pm-11:00 am

2 stops11h 20m

$479

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Sun 11/8

8:15 am-6:22 pm

1 stop14h 07m

Ontario

Sun 11/15

11:10 pm-12:45 pm

1 stop9h 35m

$488
Quickest round-trip

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Wed 10/21

2:00 pm-8:58 pm

1 stop9h 58m

Ontario

Sun 11/1

7:00 am-9:00 pm

1 stop10h 00m

$504

San JuanOntario

SJU San Juan Luis Munoz Marin Intl - ONT Ontario

SJUONT

San Juan Luis Munoz Marin Intl

Fri 10/2

2:00 pm-8:58 pm

1 stop9h 58m

Ontario

Mon 10/5

6:00 am-8:38 pm

1 stop11h 38m

$504

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, January 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 $288. If you aren’t able to travel during the month of January, then book flights to Ontario from San Juan Luis Munoz Marin Intl Airport during April instead. Flights to Ontario in April, while not as cheap as those in January, still average around $388.

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

You are more likely to see cheaper flights to Ontario from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $547 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from San Juan Luis Munoz Marin Intl Airport for as low as $360 on momondo.

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

You could potentially save up to 36% 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 August 2026, prices for San Juan Luis Munoz Marin Intl Airport to Ontario flights are approximately 57% 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 53m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Ontario takes 9h 53m
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

Frequently asked questions about flying from San Juan Luis Munoz Marin Intl Airport to Ontario

  • 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 53m.

  • 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
United AirlinesPriceFrom $367Free CancellationRating
7.4
10,111 reviews
Search United Airlines flights
American AirlinesPriceFrom $461Free CancellationRating
7.1
11,923 reviews
Search American 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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