What are the cheapest airlines flying from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip?

Cheapflights users have booked flights from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip from $335. Another airline that can offer you cheap pricing is Delta. American Airlines is currently priced 44% below the average price you’ll pay for this route.

What is the cheapest day to fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

Travelers seeking maximum savings on their Ontario to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 2.2 in.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

What are the most popular airlines that fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

When booking a flight from Ontario to San Juan Luis Munoz Marin Intl Airport, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What is the cheapest day to fly round-trip from Ontario to San Juan Luis Munoz Marin Intl Airport?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 62% when planning your travel around this day of the week.

What is the cheapest month to fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

October is one of the best times of the year to fly to San Juan Luis Munoz Marin Intl Airport from Ontario. Prices for October average $467 per person but you can even find prices for as low as $212. The most expensive prices can be found in the month of December. Opting for a October flight can save you 40% on your journey compared to booking in December

What airport do you fly from for flights from Ontario to San Juan Luis Munoz Marin Intl?

Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to San Juan Luis Munoz Marin Intl. 5 airlines have flights from Ontario to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Ontario to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day.

Can I find deals for flights from Ontario to Luis Munoz Marin Intl that include hotel bookings?

Yes. In addition to deals on Ontario to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to Luis Munoz Marin Intl?

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

Can I find deals for business class flights from Ontario to Luis Munoz Marin Intl?

Yes. Cheapflights offers flight deals from Ontario to Luis Munoz Marin Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$168+ Flights from Ontario to San Juan Luis Munoz Marin Intl Airport

Q: How much does it cost to fly round-trip from Ontario to San Juan Luis Munoz Marin Intl Airport?

Airfare is below average for this route at the moment. Ontario to San Juan Luis Munoz Marin Intl Airport flights typically cost between $475 and $730 in September. The cheapest round-trip price found within the last 3 days was $335 on American Airlines (Sep 6-Sep 19).

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Find cheap flights from Ontario to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 24 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Ontario to Luis Munoz Marin Intl

Round-trip from	$335 (American Airlines)
One-way from	$168 (American Airlines)
Popular in	December
Cheapest in	October
Average price	$620

From Ontario to San Juan Luis Munoz Marin Intl

Search Deals

One-way flight from Ontario to San Juan Luis Munoz Marin Intl

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Highest demand for flights based on searches. 7% potential increase in price ($50 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Ontario to Luis Munoz Marin Intl

Cheapest flights from Ontario to Luis Munoz Marin Intl
Explore the most affordable flight options available from Ontario to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

Sun 12/710:59 pmONT - SJU

1 stop9h 41mDelta

Fri 12/121:50 pmSJU - ONT

1 stop12h 51mDelta

Deal found 8/12

$335

Sat 10/186:36 pmONT - SJU

2 stops14h 24mUnited Airlines

Tue 10/211:05 amSJU - ONT

2 stops14h 08mUnited Airlines

Deal found 8/11

$353

Tue 9/96:04 amONT - SJU

2 stops14h 53mUnited Airlines

Fri 9/261:05 amSJU - ONT

2 stops14h 46mUnited Airlines

Deal found 8/12

$364

Sat 10/257:05 amONT - SJU

1 stop11h 54mDelta

Wed 11/57:00 amSJU - ONT

2 stops19h 41mDelta

Deal found 8/12

$370

Sat 9/610:35 pmONT - SJU

1 stop13h 24mAmerican Airlines

Fri 9/193:55 pmSJU - ONT

2 stops20h 26mAmerican Airlines

Deal found 8/12

$386

Wed 12/310:59 pmONT - SJU

1 stop9h 41mDelta

Thu 12/111:50 pmSJU - ONT

1 stop12h 51mDelta

Deal found 8/12

$400

Fri 9/2610:56 pmONT - SJU

1 stop11h 51mJetBlue

Wed 10/11:29 pmSJU - ONT

1 stop11h 00mJetBlue

Deal found 8/11

$405

Tue 9/2310:56 pmONT - SJU

1 stop10h 46mJetBlue

Thu 9/251:25 pmSJU - ONT

1 stop11h 04mJetBlue

Deal found 8/11

$410

Wed 10/295:05 amONT - SJU

1 stop9h 20mUnited Airlines

Sat 11/82:25 pmSJU - ONT

1 stop10h 19mUnited Airlines

Deal found 8/12

$425

Wed 10/86:53 amONT - SJU

2 stops16h 37mFrontier

Sat 10/114:18 pmSJU - ONT

2 stops18h 11mFrontier

Deal found 8/11

$426

Best flights from Ontario to Luis Munoz Marin Intl
Discover carefully curated flight deals from Ontario to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 13, 2025.

Sat 9/610:53 amONT - SJU

2 stops21h 18mAmerican Airlines

Fri 9/193:55 pmSJU - ONT

2 stops20h 26mAmerican Airlines

Deal found 8/12

$335

Sun 12/710:59 pmONT - SJU

1 stop9h 41mDelta

Wed 12/101:50 pmSJU - ONT

1 stop9h 52mDelta

Deal found 8/12

$335

Mon 9/2910:35 pmONT - SJU

1 stop14h 17mAmerican Airlines

Fri 10/33:05 pmSJU - ONT

1 stop10h 28mAmerican Airlines

Deal found 8/12

$335

Tue 10/285:50 pmONT - SJU

2 stops15h 06mDelta

Sat 11/17:15 amSJU - ONT

2 stops17h 05mDelta

Deal found 8/12

$335

Sat 10/257:05 amONT - SJU

1 stop11h 54mDelta

Sat 11/17:15 amSJU - ONT

2 stops18h 26mDelta

Deal found 8/12

$335

Sat 10/184:49 pmONT - SJU

2 stops15h 17mAmerican Airlines

Wed 10/225:30 amSJU - ONT

2 stops12h 54mAmerican Airlines

Deal found 8/11

$335

Tue 10/285:50 pmONT - SJU

2 stops15h 06mDelta

Tue 11/47:15 amSJU - ONT

2 stops19h 26mDelta

Deal found 8/12

$335

Sun 10/2610:00 pmONT - SJU

1 stop12h 21mDelta

Sat 11/17:15 amSJU - ONT

2 stops18h 26mDelta

Deal found 8/12

$335

Sat 10/257:05 amONT - SJU

1 stop11h 54mDelta

Tue 11/47:15 amSJU - ONT

2 stops19h 26mDelta

Deal found 8/12

$335

Sun 12/710:59 pmONT - SJU

1 stop9h 41mDelta

Thu 12/111:50 pmSJU - ONT

1 stop12h 51mDelta

Deal found 8/12

$335

Last-minute flights from Ontario to Luis Munoz Marin Intl
Discover last-minute flight deals from Ontario to Luis Munoz Marin Intl. Data last updated August 13, 2025 and is based on user searches.

Wed 8/1312:59 amONT - SJU

2 stops19h 27mFrontier

Fri 8/153:34 amSJU - ONT

2 stops18h 40mFrontier

Deal found 8/10

$445

Mon 8/186:10 amONT - SJU

2 stops14h 49mAmerican Airlines

Wed 8/278:30 amSJU - ONT

2 stops12h 22mAmerican Airlines

Deal found 8/11

$595

Mon 8/185:05 amONT - SJU

1 stop9h 25mUnited Airlines

Tue 8/261:05 amSJU - ONT

2 stops14h 27mUnited Airlines

Deal found 8/11

$685

Mon 8/181:34 pmONT - SJU

2 stops12h 56mUnited Airlines

Fri 8/222:00 pmSJU - ONT

1 stop10h 25mUnited Airlines

Deal found 8/11

$715

Mon 8/181:34 pmONT - SJU

2 stops12h 56mUnited Airlines

Wed 8/202:00 pmSJU - ONT

1 stop10h 25mUnited Airlines

Deal found 8/11

$740

Tue 8/196:04 amONT - SJU

1 stop11h 34mUnited Airlines

Tue 8/262:00 pmSJU - ONT

1 stop10h 25mUnited Airlines

Deal found 8/12

$800

Wed 8/206:17 amONT - SJU

2 stops14h 42mAmerican Airlines

Tue 8/267:55 amSJU - ONT

1 stop16h 17mAmerican Airlines

Deal found 8/11

$655

Thu 8/2110:29 pmONT - SJU

1 stop20h 01mAmerican Airlines

Tue 8/267:55 amSJU - ONT

1 stop16h 17mAmerican Airlines

Deal found 8/11

$625

Thu 8/216:04 amONT - SJU

1 stop11h 34mUnited Airlines

Wed 8/272:00 pmSJU - ONT

1 stop10h 25mUnited Airlines

Deal found 8/11

$710

Fri 8/226:04 amONT - SJU

1 stop11h 34mUnited Airlines

Thu 8/282:00 pmSJU - ONT

1 stop10h 25mUnited Airlines

Deal found 8/12

$725

Sat 9/610:35 pmONT - SJU

1 stop13h 24mAmerican Airlines

Fri 9/193:55 pmSJU - ONT

2 stops20h 26mAmerican Airlines

Deal found 8/12

$386

Sat 9/610:56 pmONT - SJU

1 stop12h 59mJetBlue

Fri 9/191:30 pmSJU - ONT

1 stop10h 59mJetBlue

Deal found 8/12

$446

One-way flights from Ontario to Luis Munoz Marin Intl
Search for one-way flight options from Ontario to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated August 13, 2025.

Wed 11/126:20 amONT - SJU

2 stops13h 27mAmerican Airlines

Deal found 8/11

$168

Sat 9/612:47 pmONT - SJU

2 stops19h 24mAmerican Airlines

Deal found 8/12

$168

Sat 10/188:24 amONT - SJU

2 stops15h 06mFrontier

Deal found 8/11

$183

Mon 10/1310:56 pmONT - SJU

1 stop10h 44mJetBlue

Deal found 8/11

$188

Fri 11/146:11 pmONT - SJU

2 stops17h 04mFrontier

Deal found 8/12

$199

Mon 11/108:25 pmONT - SJU

2 stops10h 00mSouthwest

Deal found 8/12

$203

Mon 11/1010:59 pmONT - SJU

1 stop9h 41mDelta

Deal found 8/11

$203

Thu 9/1110:56 pmONT - SJU

1 stop10h 46mJetBlue

Deal found 8/12

$205

Sun 9/1410:56 pmONT - SJU

1 stop13h 00mJetBlue

Deal found 8/11

$205

Mon 9/1510:56 pmONT - SJU

1 stop10h 46mJetBlue

Deal found 8/12

$205

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 9/6

10:53 am-11:11 am

2 stops21h 18m

San Juan Luis Munoz Marin Intl

Fri 9/19

3:55 pm-9:21 am

2 stops20h 26m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sun 12/7

10:59 pm-12:40 pm

1 stop9h 41m

San Juan Luis Munoz Marin Intl

Wed 12/10

1:50 pm-7:42 pm

1 stop9h 52m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Mon 9/29

10:35 pm-3:52 pm

1 stop14h 17m

San Juan Luis Munoz Marin Intl

Fri 10/3

3:05 pm-10:33 pm

1 stop10h 28m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 10/28

5:50 pm-11:56 am

2 stops15h 06m

San Juan Luis Munoz Marin Intl

Sat 11/1

7:15 am-9:20 pm

2 stops17h 05m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 10/25

7:05 am-9:59 pm

1 stop11h 54m

San Juan Luis Munoz Marin Intl

Sat 11/1

7:15 am-10:41 pm

2 stops18h 26m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 10/18

4:49 pm-11:06 am

2 stops15h 17m

San Juan Luis Munoz Marin Intl

Wed 10/22

5:30 am-3:24 pm

2 stops12h 54m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Tue 10/28

5:50 pm-11:56 am

2 stops15h 06m

San Juan Luis Munoz Marin Intl

Tue 11/4

7:15 am-10:41 pm

2 stops19h 26m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sun 10/26

10:00 pm-1:21 pm

1 stop12h 21m

San Juan Luis Munoz Marin Intl

Sat 11/1

7:15 am-10:41 pm

2 stops18h 26m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sat 10/25

7:05 am-9:59 pm

1 stop11h 54m

San Juan Luis Munoz Marin Intl

Tue 11/4

7:15 am-10:41 pm

2 stops19h 26m

$335

OntarioSan Juan

ONT - SJU

ONTSJU

Ontario

Sun 12/7

10:59 pm-12:40 pm

1 stop9h 41m

San Juan Luis Munoz Marin Intl

Thu 12/11

1:50 pm-10:41 pm

1 stop12h 51m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 19 results

Best time to book a flight from Ontario to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Ontario 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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Juan Luis Munoz Marin Intl Airport

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

The best time to book flights from Ontario to San Juan Luis Munoz Marin Intl Airport is 24 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Ontario to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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 ONT to SJU?

One of the essential ways to save on airfare from Ontario to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 27% on airfare.

How much does it cost to fly round-trip from Ontario to San Juan Luis Munoz Marin Intl Airport?

What’s the top layover airport for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

Baltimore (BWI) – chosen by Cheapflights users on 67% of 1-stop itineraries from Ontario to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

Austin (AUS) is the most affordable 1-stop option, with an average round-trip price of $634.

What’s the fastest layover option from Ontario to San Juan Luis Munoz Marin Intl Airport?

Flights via Austin (AUS) have the shortest average one-way travel time for 1-stop routes: 8h 30m.

Which airport typically offers the quickest layover for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

Flights via Austin (AUS) offer the fastest connection on this route, with an average layover time of 1h 33m.

Reviews of airlines servicing Luis Munoz Marin Intl

See what other customers who have flown with Southwest, Delta, and United Airlines from Ontario to San Juan Luis Munoz Marin Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,246 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

8.0

Very good

7,979 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,920 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,221 reviews

Southwest

8.0

Very good

4,246 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airport do you fly from for flights from Ontario to San Juan Luis Munoz Marin Intl?
Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to San Juan Luis Munoz Marin Intl. 5 airlines have flights from Ontario to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from Ontario to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day.
What are the cheapest airlines flying from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip?
Cheapflights users have booked flights from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip from $335. Another airline that can offer you cheap pricing is Delta. American Airlines is currently priced 44% below the average price you’ll pay for this route.
Can I find deals for flights from Ontario to Luis Munoz Marin Intl that include hotel bookings?
Yes. In addition to deals on Ontario to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Luis Munoz Marin Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Luis Munoz Marin Intl.
Can I find deals for business class flights from Ontario to Luis Munoz Marin Intl?
Yes. Cheapflights offers flight deals from Ontario to Luis Munoz Marin Intl 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 Ontario to San Juan Luis Munoz Marin Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Ontario to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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.

See more FAQs

Dorado

Fajardo

Rio Grande

Luquillo

Humacao

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Top 5 airlines flying from Ontario to Luis Munoz Marin Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$73	Average$393	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$355	Average$550	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$364	Average$606	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$366	Average$603	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$409	Average$571	FlexibilityNo cancel fee	On-time63%

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$168+ Cheap flights from Ontario (ONT) to Luis Munoz Marin Intl (SJU)

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Ontario to San Juan Luis Munoz Marin Intl are usually found in October or September, booked 24 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Ontario to Luis Munoz Marin Intl

Round-trip from

One-way from

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Cheapest in

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Find flight deals from Ontario to Luis Munoz Marin Intl

Cheapest flights from Ontario to Luis Munoz Marin IntlExplore the most affordable flight options available from Ontario to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

Explore the most affordable flight options available from Ontario to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to San Juan Luis Munoz Marin Intl Airport that are best for you.

Best time to book a flight from Ontario to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Juan Luis Munoz Marin Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Luis Munoz Marin Intl. Price data was last updated on August 8, 2025.

What is the cheapest month to book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

What is the cheapest time of day to fly from ONT to SJU?

Find hourly flight availability from Ontario to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

How much does it cost to fly round-trip from Ontario to San Juan Luis Munoz Marin Intl Airport?

What’s the top layover airport for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

Share of 1-stop round-trip flights from Ontario to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

What’s the cheapest layover airport for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

Average round-trip fare for 1-stop flights from Ontario to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

What’s the fastest layover option from Ontario to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for 1-stop one-way flights from Ontario to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Which airport typically offers the quickest layover for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

Average layover duration for 1-stop one-way flights from Ontario to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Reviews of airlines servicing Luis Munoz Marin Intl

See what other customers who have flown with Southwest, Delta, and United Airlines from Ontario to San Juan Luis Munoz Marin Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl?

What are the cheapest airlines flying from Ontario to San Juan Luis Munoz Marin Intl Airport round-trip?

Can I find deals for flights from Ontario to Luis Munoz Marin Intl that include hotel bookings?

How can I find direct flights from Ontario to Luis Munoz Marin Intl?

Can I find deals for business class flights from Ontario to Luis Munoz Marin Intl?

What is the cheapest month to book a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

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.

Alternative routes for Ontario to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to Luis Munoz Marin Intl

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Cheapest flights from Ontario to Luis Munoz Marin Intl
Explore the most affordable flight options available from Ontario to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.