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$130+ Cheap flights from San Juan to Ontario (ONT)

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ONT
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from San Juan to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Popular in

June

Cheapest in

March

Round-trip from

$328
(Priceline)

One-way from

$130
(eDestinos)
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 34% potential price drop
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From San Juan to Ontario
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One-way flight from San Juan to Ontario
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Find flight deals from San Juan to Ontario

Cheapest flights from San Juan to Ontario
Explore the most affordable flight options available from San Juan to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Priceline deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/308:00 amSJU - ONT
1 stop10h 21mFrontier
Mon 1/63:21 pmONT - SJU
1 stop11h 09mFrontier
Deal found 11/19$328
This eDestinos deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/274:25 pmSJU - ONT
2 stops18h 43mMultiple Airlines
Wed 12/47:45 amONT - SJU
2 stops24h 38mMultiple Airlines
Deal found 11/19$339
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:30 amSJU - ONT
2 stops15h 57mAmerican Airlines
Mon 12/96:10 amONT - SJU
2 stops11h 44mAmerican Airlines
Deal found 11/20$544
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/281:50 pmSJU - ONT
1 stop9h 52mDelta
Sun 12/810:00 pmONT - SJU
1 stop12h 15mDelta
Deal found 11/19$579
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/272:25 pmSJU - ONT
1 stop10h 19mUnited Airlines
Tue 12/105:05 amONT - SJU
2 stops12h 21mUnited Airlines
Deal found 11/20$669
This Southwest deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:35 amSJU - ONT
2 stops15h 55mSouthwest
Mon 1/68:35 amONT - SJU
2 stops12h 10mSouthwest
Deal found 11/20$714
This Alaska Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/66:25 amSJU - ONT
2 stops19h 50mAlaska Airlines
Tue 12/106:00 amONT - SJU
2 stops29h 15mAlaska Airlines
Deal found 11/20$994

Find flights from San Juan to Ontario within your budget

Customize your flight search to find flights from San Juan 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, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Mon 12/30

8:00 am-2:21 pm

1 stop10h 21m

Ontario

Mon 1/6

3:21 pm-6:30 am

1 stop11h 09m

$328

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 1/31

3:46 pm-9:57 pm

1 stop10h 11m

Ontario

Sat 2/8

1:45 pm-6:12 am

2 stops12h 27m

$444

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 12/6

6:30 am-6:27 pm

2 stops15h 57m

Ontario

Mon 12/9

6:10 am-9:54 pm

2 stops11h 44m

$544

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Tue 12/31

5:35 am-5:30 pm

2 stops15h 55m

Ontario

Mon 1/6

8:35 am-12:45 am

2 stops12h 10m

$714

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Mon 12/30

8:00 am-2:21 pm

1 stop10h 21m

Ontario

Sun 1/5

1:28 pm-2:58 pm

2 stops21h 30m

$898

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Fri 12/6

6:25 am-10:15 pm

2 stops19h 50m

Ontario

Tue 12/10

6:00 am-3:15 pm

2 stops29h 15m

$994

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Sat 12/14

6:20 am-11:44 pm

2 stops21h 24m

$130

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Mon 12/9

12:57 pm-11:44 pm

2 stops38h 47m

$197

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Mon 1/13

2:05 am-12:41 pm

2 stops14h 36m

$222

San JuanOntario

SJU - ONT

SJUONT

San Juan Luis Munoz Marin Intl

Wed 11/27

3:59 pm-10:14 pm

1 stop10h 15m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 13 results
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Best time to book a flight from San Juan to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Juan 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.

Travel insights for flights from San Juan to Ontario

Get recent, data-driven insights about flights from San Juan to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from San Juan to Ontario?

Currently, September is the cheapest month in which you can book a flight from San Juan to Ontario (average of $236). Flying from San Juan to Ontario in December is currently the most expensive (average of $298). 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 SJU to ONT?

Find hourly flight availability from San Juan to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

A simple way to save on the total cost of your ticket is to fly from San Juan to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight in the afternoon.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated November 21, 2024.
Get a feel of what it's like to fly with United Airlines, American Airlines and Alaska Airlines from San Juan to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Food

7.2

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from San Juan to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from San Juan?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from San Juan to Ontario. 3 airlines have flights to Ontario from San Juan on a regular basis. Booking flights from San Juan to Ontario should not be difficult; the airport handles an average of 0 inbound flights from San Juan per day.

  • What are the cheapest airlines flying from San Juan to Ontario round-trip?

    Flying on Frontier is currently your cheapest option to Ontario, with prices starting at $328. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $444 and $544, respectively. You may be able to fly from San Juan to Ontario for 41% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Juan to Ontario one-way?

    One-way options have recently been found by users for as low as $130 on Frontier. Other airlines that offer cheap prices include United Airlines from $222 and American Airlines from $307 one-way.

  • Can I find deals for flights from San Juan to Ontario that include hotel bookings?

    Yes. In addition to deals on San Juan to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Ontario.

  • Can I find deals for business class flights from San Juan to Ontario?

    Yes. Cheapflights offers flight deals from San Juan to Ontario 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 San Juan to Ontario?

    Currently, September is the cheapest month in which you can book a flight from San Juan to Ontario (average of $236). Flying from San Juan to Ontario in December is currently the most expensive (average of $298). 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.

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Alternative routes for San Juan to Ontario

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Top 3 airlines flying from San Juan to Ontario

Discover the top 3 airlines that operate flights from San Juan to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$334Average$589FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$344Average$676FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$391Average$654FlexibilityNo cancel feeOn-time69%
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