Cheap flights from Ontario (ONT) to San Juan from $137

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — SJU
Mar 24 — Mar 311

The best prices from Ontario to San Juan are usually found in May or April, booked 44 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Ontario to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San Juan (PR1). 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 March 19, 2024.

Popular in

March

Cheapest in

May

Round-trip from

$255

One-way from

$167
High demand for flights, 40% potential price rise
Best time to find cheap flights, 33% potential price drop
From Ontario to San Juan
One-way flight from Ontario to San Juan

What is the cheapest day to fly round-trip from Ontario to San Juan?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 45% when planning your travel around this day of the week.

How far in advance should I book a flight from Ontario to San Juan?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 26 days in advance, which can save you up to 85% on flights from Ontario to San Juan compared to booking the week you need them. Waiting 26 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $504. For sooner than that we have options available in the next 3 days from $672.

What is the cheapest month to fly from Ontario to San Juan?

September is one of the best times of the year to fly to San Juan from Ontario. Prices for September average $476 per person but you can even find prices for as low as $221. The most expensive prices can be found in the month of December. Opting for a September flight can save you 34% on your journey compared to booking in December

When is the cheapest time to fly from Ontario to San Juan (ONT - SJU)?

One of the essential ways to save on airfare from Ontario to San Juan is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 48% on airfare.

Cheap United Airlines flights from Ontario to San Juan

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and San Juan. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Peruse some of the lowest-priced United Airlines flights we've found from Ontario to San Juan. Come back soon if you're not finding the exact deal you're looking for.
Sat 4/131:36 pmONT - SJU
2 stops12h 54mUnited Airlines
Sat 4/209:30 amSJU - ONT
2 stops16h 34mUnited Airlines
Deal found 3/18$504
Wed 7/176:00 amONT - SJU
1 stop11h 38mUnited Airlines
Tue 7/232:55 pmSJU - ONT
1 stop9h 16mUnited Airlines
Deal found 3/17$542
Fri 4/121:36 pmONT - SJU
2 stops12h 54mUnited Airlines
Fri 4/191:40 pmSJU - ONT
1 stop10h 00mUnited Airlines
Deal found 3/18$580
Sun 4/145:15 amONT - SJU
1 stop9h 15mUnited Airlines
Wed 4/171:40 pmSJU - ONT
2 stops12h 24mUnited Airlines
Deal found 3/18$592
Tue 4/165:15 amONT - SJU
1 stop9h 15mUnited Airlines
Tue 4/231:40 pmSJU - ONT
1 stop10h 00mUnited Airlines
Deal found 3/18$612
Wed 4/105:15 amONT - SJU
1 stop9h 15mUnited Airlines
Tue 4/167:00 amSJU - ONT
2 stops16h 40mUnited Airlines
Deal found 3/17$622
Fri 4/121:36 pmONT - SJU
2 stops12h 54mUnited Airlines
Tue 4/161:40 pmSJU - ONT
2 stops23h 22mUnited Airlines
Deal found 3/18$649
Tue 5/286:00 amONT - SJU
1 stop11h 38mUnited Airlines
Wed 6/57:00 amSJU - ONT
1 stop17h 14mUnited Airlines
Deal found 3/18$662
Mon 4/85:15 amONT - SJU
1 stop9h 15mUnited Airlines
Fri 4/121:40 pmSJU - ONT
2 stops12h 24mUnited Airlines
Deal found 3/18$668

Cheap American Airlines flights from Ontario to San Juan

Explore cheap flight options specifically provided by American Airlines for the route between Ontario and San Juan. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
To aid your search, here are some of the cheapest American Airlines flights we've found from Ontario to San Juan. Deals frequently update to provide users with more options.
Sun 8/186:32 amONT - SJU
1 stop14h 50mAmerican Airlines
Sat 8/243:54 pmSJU - ONT
1 stop9h 06mAmerican Airlines
Deal found 3/18$453
Fri 4/1912:55 pmONT - SJU
2 stops22h 40mAmerican Airlines
Fri 4/266:45 amSJU - ONT
2 stops16h 57mAmerican Airlines
Deal found 3/18$540
Mon 4/811:59 pmONT - SJU
2 stops10h 36mAmerican Airlines
Wed 4/171:41 pmSJU - ONT
2 stops11h 15mAmerican Airlines
Deal found 3/18$541
Tue 4/93:55 pmONT - SJU
2 stops18h 40mAmerican Airlines
Mon 4/151:41 pmSJU - ONT
2 stops11h 15mAmerican Airlines
Deal found 3/18$550
Mon 3/257:36 pmONT - SJU
2 stops12h 15mAmerican Airlines
Mon 4/18:00 amSJU - ONT
2 stops16h 59mAmerican Airlines
Deal found 3/18$577
Mon 6/310:29 pmONT - SJU
2 stops19h 31mAmerican Airlines
Thu 6/136:25 amSJU - ONT
2 stops19h 44mAmerican Airlines
Deal found 3/17$578
Fri 4/510:20 pmONT - SJU
1 stop15h 45mAmerican Airlines
Tue 4/95:25 pmSJU - ONT
2 stops18h 39mAmerican Airlines
Deal found 3/18$581
Wed 4/177:40 pmONT - SJU
2 stops15h 20mAmerican Airlines
Tue 4/235:25 pmSJU - ONT
2 stops19h 21mAmerican Airlines
Deal found 3/18$582
Sat 4/1310:20 pmONT - SJU
1 stop15h 45mAmerican Airlines
Wed 4/171:30 pmSJU - ONT
1 stop10h 12mAmerican Airlines
Deal found 3/17$614

Cheap Ontario to San Juan flights in March & April 2024

Find cheap flight options from Ontario to San Juan specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to San Juan in 2024. For more flight deals, be sure to check back very soon.
Thu 4/1812:56 amONT - SJU
2 stops40h 23mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$294
Thu 4/1812:56 amONT - SJU
2 stops40h 23mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$295
Fri 4/197:16 amONT - SJU
2 stops34h 03mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$317
Fri 4/1910:59 pmONT - SJU
2 stops17h 40mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$322
Mon 4/1511:19 amONT - SJU
1 stop29h 20mMultiple Airlines
Mon 4/227:47 pmSJU - ONT
2 stops37h 39mMultiple Airlines
Deal found 3/18$335
Mon 4/1511:19 amONT - SJU
1 stop29h 20mMultiple Airlines
Mon 4/227:47 pmSJU - ONT
2 stops37h 39mMultiple Airlines
Deal found 3/18$337
Fri 4/199:49 amONT - SJU
1 stop30h 50mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$346
Fri 4/199:49 amONT - SJU
1 stop30h 50mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$347
Mon 4/88:06 amONT - SJU
1 stop8h 40mMultiple Airlines
Mon 4/158:48 pmSJU - ONT
2 stops36h 38mMultiple Airlines
Deal found 3/18$357

Ontario to San Juan 2024 flight deals

Discover exclusive flight deals for travel between Ontario and San Juan in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Listed are some of the best fares we've found on flights departing from Ontario to San Juan in 2024. For more flight deals, be sure to check back very soon.
Thu 4/1812:56 amONT - SJU
2 stops40h 23mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$294
Thu 4/1812:56 amONT - SJU
2 stops40h 23mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$295
Fri 4/197:16 amONT - SJU
2 stops34h 03mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$317
Fri 4/1910:59 pmONT - SJU
2 stops17h 40mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$322
Tue 9/310:59 pmONT - SJU
1 stop9h 50mDelta
Mon 9/912:54 pmSJU - ONT
1 stop12h 34mDelta
Deal found 3/18$334
Mon 4/1511:19 amONT - SJU
1 stop29h 20mMultiple Airlines
Mon 4/227:47 pmSJU - ONT
2 stops37h 39mMultiple Airlines
Deal found 3/18$335
Mon 4/1511:19 amONT - SJU
1 stop29h 20mMultiple Airlines
Mon 4/227:47 pmSJU - ONT
2 stops37h 39mMultiple Airlines
Deal found 3/18$337
Fri 4/199:49 amONT - SJU
1 stop30h 50mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$346
Fri 4/199:49 amONT - SJU
1 stop30h 50mMultiple Airlines
Fri 4/268:29 pmSJU - ONT
1 stop19h 52mMultiple Airlines
Deal found 3/18$347

Ontario to San Juan flights leaving soon

Find last-minute flight options from Ontario to San Juan for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Have a look at some of the flights available from Ontario to San Juan departing last-minute. Tip: verify your flight details before completing your reservation.
Wed 3/278:06 amONT - SJU
2 stops14h 34mFrontier
Mon 4/12:57 amSJU - ONT
2 stops30h 40mFrontier
Deal found 3/18$426
Mon 3/259:55 pmONT - SJU
2 stops42h 06mMultiple Airlines
Mon 4/18:36 pmSJU - ONT
1 stop13h 40mMultiple Airlines
Deal found 3/18$463
Mon 3/254:59 pmONT - SJU
1 stop23h 47mMultiple Airlines
Sun 3/312:57 amSJU - ONT
2 stops31h 19mMultiple Airlines
Deal found 3/18$523
Sun 3/2412:59 amONT - SJU
2 stops15h 07mMultiple Airlines
Mon 4/18:36 pmSJU - ONT
1 stop13h 40mMultiple Airlines
Deal found 3/18$532
Mon 3/254:59 pmONT - SJU
1 stop23h 47mMultiple Airlines
Mon 4/18:36 pmSJU - ONT
1 stop13h 40mMultiple Airlines
Deal found 3/18$569
Mon 3/257:36 pmONT - SJU
2 stops12h 15mAmerican Airlines
Mon 4/18:00 amSJU - ONT
2 stops16h 59mAmerican Airlines
Deal found 3/18$577
Sat 3/234:15 pmONT - SJU
1 stop24h 31mMultiple Airlines
Wed 3/2711:12 amSJU - ONT
2 stops23h 04mMultiple Airlines
Deal found 3/18$591
Sat 3/234:15 pmONT - SJU
1 stop24h 31mMultiple Airlines
Tue 3/262:30 amSJU - ONT
2 stops17h 24mMultiple Airlines
Deal found 3/18$606
Sat 3/234:15 pmONT - SJU
1 stop24h 31mMultiple Airlines
Wed 3/278:36 pmSJU - ONT
1 stop13h 40mMultiple Airlines
Deal found 3/18$653

One-way flights to San Juan from Ontario

Search for one-way flight options from Ontario to San Juan. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Users in need of a one-way flight from Ontario to San Juan can choose from these deals. Those seeking round-trip flights from Ontario to San Juan should utilize the search form at the the top of the page.
Tue 4/307:16 amONT - SJU
2 stops28h 22mFrontier
Deal found 3/18$137
Mon 4/297:26 amONT - SJU
2 stops28h 12mFrontier
Deal found 3/18$139
Mon 4/83:35 pmONT - SJU
3 stops47h 32mMultiple Airlines
Deal found 3/18$146
Thu 5/1612:49 amONT - SJU
2 stops44h 50mFrontier
Deal found 3/18$148
Wed 3/278:06 amONT - SJU
2 stops14h 34mMultiple Airlines
Deal found 3/18$151
Thu 5/1612:49 amONT - SJU
3 stops37h 56mMultiple Airlines
Deal found 3/18$153
Fri 5/174:48 pmONT - SJU
2 stops21h 57mMultiple Airlines
Deal found 3/18$156
Tue 4/308:48 pmONT - SJU
3 stops26h 00mMultiple Airlines
Deal found 3/18$163
Mon 4/2910:55 pmONT - SJU
3 stops17h 07mMultiple Airlines
Deal found 3/18$166

Find flights from Ontario to San Juan within your budget

Customize your flight search to find flights from Ontario to San Juan 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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$294 - $579

Route

Depart

Return

Price

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Thu 4/18

2 stops40h 23m

San Juan Luis Munoz Marin Intl

Fri 4/26

1 stop19h 52m

$294

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Thu 4/18

2 stops40h 23m

San Juan Luis Munoz Marin Intl

Fri 4/26

1 stop19h 52m

$295

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 4/19

2 stops34h 03m

San Juan Luis Munoz Marin Intl

Fri 4/26

1 stop19h 52m

$317

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Fri 4/19

2 stops17h 40m

San Juan Luis Munoz Marin Intl

Fri 4/26

1 stop19h 52m

$322

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Tue 9/3

1 stop9h 50m

San Juan Luis Munoz Marin Intl

Mon 9/9

1 stop12h 34m

$334

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Mon 4/15

1 stop29h 20m

San Juan Luis Munoz Marin Intl

Mon 4/22

2 stops37h 39m

$335

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Sun 8/18

1 stop14h 50m

San Juan Luis Munoz Marin Intl

Sat 8/24

1 stop9h 06m

$453

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Sat 4/13

2 stops12h 54m

San Juan Luis Munoz Marin Intl

Sat 4/20

2 stops16h 34m

$504

OntarioSan Juan Luis Munoz Marin Intl

ONT - SJU

ONTSJU

Ontario

Tue 5/28

1 stop13h 15m

San Juan Luis Munoz Marin Intl

Sat 6/1

1 stop14h 29m

$579

Flights are sorted by cheapest first

Deals found on 3/18

When is the best time to book a flight from Ontario to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to San Juan. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from Ontario to San Juan, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from Ontario to San Juan?

Use this chart to determine the cheapest time to fly round-trip from Ontario to San Juan. Price data was last updated on March 17, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Ontario to San Juan flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Juan by month

Plan your trip from Ontario to San Juan by taking into account the cheapest months to travel. The average price of a one-way flight from Ontario to San Juan is currently $151 while a round-trip flight costs $381. Price data was last updated on March 10, 2024.

Currently, September is the cheapest month in which you can book a flight from Ontario to San Juan (average of $255). Flying from Ontario to San Juan in March is currently the most expensive (average of $342). 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.

January

$278

February

$286

March

$342

April

$313

May

$285

June

$327

July

$338

August

$280

September

$255

October

$264

November

$298

December

$300

Temperature and rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average temperature and rainfall totals by month.

SJU

Temperature

77 - 82.4 °F

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated March 19, 2024.
Read through reviews of airlines operating flights from Ontario to San Juan, such as United Airlines, American Airlines and Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,147 reviews

Overall

8.1

Food

7.3

Crew

8.6

Entertainment

7.4

Comfort

7.9

Boarding

8.3

Reviews

1 / 10

Seats were super uncomfortable even in Economy Premium. Paid extra for better seats but it felt like the pads had not been replaced in 40 years. Brutal for a 10 hour flight.

8.1
Very good
9,147 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Food

7.3

Crew

8.6

Entertainment

7.4

Comfort

7.9

Boarding

8.3

Reviews

1 / 10

Seats were super uncomfortable even in Economy Premium. Paid extra for better seats but it felt like the pads had not been replaced in 40 years. Brutal for a 10 hour flight.

8.1
Very good
11,551 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Food

7.3

Crew

8.6

Entertainment

7.4

Comfort

7.9

Boarding

8.3

Reviews

1 / 10

Seats were super uncomfortable even in Economy Premium. Paid extra for better seats but it felt like the pads had not been replaced in 40 years. Brutal for a 10 hour flight.

7.7
Good
4,921 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Food

7.3

Crew

8.6

Entertainment

7.4

Comfort

7.9

Boarding

8.3

Reviews

1 / 10

Seats were super uncomfortable even in Economy Premium. Paid extra for better seats but it felt like the pads had not been replaced in 40 years. Brutal for a 10 hour flight.

7.4
Good
11,602 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Food

7.3

Crew

8.6

Entertainment

7.4

Comfort

7.9

Boarding

8.3

Reviews

1 / 10

Seats were super uncomfortable even in Economy Premium. Paid extra for better seats but it felt like the pads had not been replaced in 40 years. Brutal for a 10 hour flight.

7.3
Good
15,312 reviews
8.1
Very good
9,147 reviews

Overall

8.1

Food

7.3

Crew

8.6

Entertainment

7.4

Comfort

7.9

Boarding

8.3

Reviews

1 / 10

Seats were super uncomfortable even in Economy Premium. Paid extra for better seats but it felt like the pads had not been replaced in 40 years. Brutal for a 10 hour flight.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Juan. 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 from for flights from Ontario to San Juan?

    If you book a flight to San Juan from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to San Juan per day from 6 different airlines.

  • Can I find flights from Ontario to San Juan for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to San Juan for under $300. The cheapest flight booked recently is on Multiple Airlines for just $294, but on average you can expect to pay $354.

  • Are there last-minute flights available from Ontario to San Juan for under $500?

    There are currently 20+ open flights from Ontario to San Juan within the next 7 days for less than $500.

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

    Delta, at $334, was found to be the cheapest airline from Ontario to San Juan. An alternate airline flying to your destination would be American Airlines. Delta is currently priced 31% below the average price you’ll pay for this route.

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

    $137 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from $167 and $211, respectively.

  • What are the most popular airlines that fly from Ontario to San Juan?

  • What does ONT to SJU mean?

    Ontario Airport is ONT and San Juan Luis Munoz Marin Intl Airport is SJU. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ready for more IATA code knowledge? These are related airports for your current travel destination: Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS), Ceiba J. Aponte de la Torre Airport (NRR).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Ontario to San Juan

Discover the top 6 airlines that operate flights from Ontario to San Juan. 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$245Average$328FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapest$282Average$632FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest$326Average$710FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$334Average$681FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$356Average$622FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Alaska AirlinesCheapest$472Average$568FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Search flights from Ontario to San Juan by cabin class

Find flights from Ontario to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to San Juan?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to San Juan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to San Juan?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Juan from Ontario.

Can Cheapflights find flights from Ontario to San Juan with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to San Juan with no change fees.

Can Cheapflights notify me if prices for flights from Ontario to San Juan become cheaper?

Yes, Cheapflights offers price alerts on Ontario to San Juan flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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