ONT - SJU

$190 Find Cheap Flights from Ontario to San Juan - Compare and Save

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Everything you should know

Cheapest round-trip
$360
Typical prices: $466-$651
Frontier
Sat 10/27Tue 10/30
ONT - SJU • 2 stops
Cheapest one-way
$190
Typical prices: $228-$352
Frontier
Fri 10/26
ONT - SJU • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and San Juan Luis Munoz Marin Intl Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
16 weeks
in advance
Our data shows that travelers who book at least 16 weeks in advance save around 38% compared to booking last minute.
Insights
Insights
When to travel
October
Cheapest • 22% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $500 (round-trip)
Denver Intl (DEN)
Shortest trip • 9h 42m (one-way)
Insights
Insights
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We hope you love your trip to San Juan Luis Munoz Marin Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to San Juan (ONT-SJU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to San Juan

Tue, Oct 27 - Fri, Oct 30
Frontier Logo
6:25 am - 9:15 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
23h 50m2 stops Denver Intl Orlando
Frontier Logo
3:59 pm - 10:42 amSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
21h 43m2 stops Atlanta Hartsfield-Jackson Denver Intl
$360Frontier
Sat, Oct 31 - Tue, Nov 3
Frontier Logo
11:52 am - 2:32 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
23h 40m2 stops Denver Intl Tampa
Frontier Logo
3:59 pm - 10:35 amSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
22h 36m2 stops Atlanta Hartsfield-Jackson Denver Intl
$370Frontier
Mon, Nov 2 - Wed, Nov 4
American Airlines Logo
10:30 pm - 9:13 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
18h 43m1 stop Charlotte Douglas
American Airlines Logo
6:28 am - 10:12 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
19h 44m1 stop Charlotte Douglas
$449American Airlines
Mon, Nov 2 - Wed, Nov 4
American Airlines Logo
10:30 pm - 9:13 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
18h 43m1 stop Charlotte Douglas
American Airlines Logo
7:30 am - 6:42 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
15h 12m2 stops Miami Dallas/Fort Worth
$449American Airlines
Mon, Oct 26 - Mon, Nov 2
United Airlines Logo
5:00 am - 5:25 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
9h 25m1 stop Denver Intl
United Airlines Logo
2:21 pm - 8:51 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
10h 30m1 stop Denver Intl
$454United Airlines
Tue, Oct 20 - Tue, Oct 27
United Airlines Logo
5:00 am - 5:38 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
9h 38m1 stop Denver Intl
United Airlines Logo
6:40 am - 6:01 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
14h 21m2 stops Houston George Bush Intcntl San Francisco
$554United Airlines
Mon, Feb 8 - Mon, Feb 22
Southwest Logo
6:35 pm - 11:25 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
12h 50m2 stops Phoenix Sky Harbor Intl Orlando
Southwest Logo
5:35 am - 2:05 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 30m2 stops Orlando Austin Bergstrom
$568Southwest
Fri, Nov 13 - Sun, Nov 15
Southwest Logo
11:55 pm - 3:00 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
11h 05m1 stop Chicago Midway
Southwest Logo
5:35 am - 2:05 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 30m2 stops Orlando Denver Intl
$711Southwest
Wed, Dec 30 - Thu, Jan 7
Delta Logo
5:05 pm - 12:58 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
15h 53m2 stops Salt Lake City New York John F Kennedy Intl
Delta Logo
7:30 am - 4:12 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 42m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$1,635Delta
Thu, Nov 26 - Fri, Dec 4
Delta Logo
6:00 am - 11:15 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
13h 15m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
3:04 pm - 11:57 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 53m2 stops Detroit Metropolitan Wayne County Salt Lake City
$1,753Delta
Booking Insights

Price, demand and travel trends for Ontario to San Juan Luis Munoz Marin Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

Round-trip flights from Ontario to San Juan Luis Munoz Marin Intl Airport typically range from $466 to $651. The lowest price found in the past 5 days was $360, on Frontier.

What's the cheapest day of the week to fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Ontario to San Juan Luis Munoz Marin Intl Airport. It’s 10% cheaper than the average day, while Friday is the most expensive, with prices 22% higher.

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

•October is the cheapest month to fly from Ontario to San Juan Luis Munoz Marin Intl Airport at $428 round-trip.
•November ($845) and July ($644) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 97% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Ontario to San Juan Luis Munoz Marin Intl Airport the cheapest?

Flights from Ontario to San Juan Luis Munoz Marin Intl Airport are cheapest 16 weeks before departure. Booking in this window typically costs about 38% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Ontario to San Juan Luis Munoz Marin Intl Airport flights

Low season

December

Cheapest flight

$190
Beat the crowds with an average 72% drop in travelers.
One-way flight from Ontario to San Juan Luis Munoz Marin Intl Airport

When to book flights from Ontario to San Juan

Are your dates flexible? Find out the best times to travel from Ontario to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to San Juan Luis Munoz Marin Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

    Three cabin classes are available on flights from Ontario to San Juan Luis Munoz Marin Intl Airport:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from Ontario to San Juan Luis Munoz Marin Intl Airport?

    A nonstop flight from Ontario to San Juan Luis Munoz Marin Intl Airport takes 00m, covering 3,334 miles.

  • Do I need a passport to fly from Ontario to San Juan Luis Munoz Marin Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Ontario to San Juan Luis Munoz Marin Intl Airport flight?

    Round-trip flights from Ontario to San Juan Luis Munoz Marin Intl Airport range from $466 to $651, with an average of $550 over the past 12 months. Anything below $466 counts as a good deal.

  • How expensive are last-minute Ontario to San Juan Luis Munoz Marin Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 26% above the $550 route average. Book 16 weeks before departure for the lowest fares.

  • How are flight prices from Ontario to San Juan Luis Munoz Marin Intl Airport looking right now?

    One-way fares from Ontario to San Juan Luis Munoz Marin Intl Airport are currently lower than usual. Average one-way flight prices are about $224, which is 28% below the typical average for this route.

  • What car rental options are available at San Juan Luis Munoz Marin Intl Airport (SJU)?

    San Juan Luis Munoz Marin Intl Airport (SJU) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • U-Save
    • Payless
    • Hertz
    • Europcar

  • Which airports can I use when flying from Ontario to San Juan Luis Munoz Marin Intl Airport?

    Flights from Ontario to San Juan Luis Munoz Marin Intl Airport usually depart from Ontario (ONT) and arrive at San Juan Luis Munoz Marin Intl (SJU).

  • Which airports do connecting flights from Ontario to San Juan Luis Munoz Marin Intl Airport pass through?

    One-stop flights from Ontario to San Juan Luis Munoz Marin Intl Airport most commonly connect through:

    • Houston George Bush Intcntl (IAH) - 23% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 19% of one-stop connections
    • Denver Intl (DEN) - 18% of one-stop connections
    • Dallas/Fort Worth (DFW) - 16% of one-stop connections

  • Can I save money by using flexible dates for flights from Ontario to San Juan Luis Munoz Marin Intl Airport?

    Yes. Flexible dates can save you up to 27% on flights from Ontario to San Juan Luis Munoz Marin Intl Airport. Monday is the cheapest departure day at $495 round-trip on average, while Friday is the most expensive at $672, a difference of $177.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Ontario to San Juan Luis Munoz Marin Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 9h 42m, compared with 10h 44m via Houston George Bush Intcntl (IAH) and 10h 48m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Ontario and San Juan Luis Munoz Marin Intl Airport?

    San Juan Luis Munoz Marin Intl Airport is 3 hours ahead of Ontario (Atlantic Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in San Juan Luis Munoz Marin Intl Airport?

    Some of the most popular sights in San Juan Luis Munoz Marin Intl Airport are Viejo San Juan, Condado Beach and Puerto Rico Convention Center. These are among the most viewed places in San Juan Luis Munoz Marin Intl Airport on KAYAK.

Your guide to booking Ontario to San Juan Luis Munoz Marin Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $495, about $177 less than Friday fares (26% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 38% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Ontario to San Juan Luis Munoz Marin Intl Airport trip for October. Fares historically average $428 round-trip in that month - typically $417 less than the most expensive month, which is November (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to San Juan Luis Munoz Marin Intl Airport.

    • Coral by The Sea Hotel
    • Hampton Inn & Suites by Hilton San Juan
    • San Juan Airport Hotel

More options for your flight from Ontario to San Juan

Complete your trip to San Juan with a hotel stay or car rental

Car rentals in San Juan
Hotels in San Juan
Vacations in San Juan