$207+ Cheap flights from Ontario (ONT) to San Juan
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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to San Juan 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.Cheap flight deals from Ontario to San Juan
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Best
Last-minute
One-way
Cheapest flights from Ontario to San JuanExplore the most affordable flight options available from Ontario to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 6, 2026.
Explore the most affordable flight options available from Ontario to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Sat 11/77:00 am -
1 stop10h 00m
Mon 11/162:05 am -
2 stops14h 28m
Deal found 8/4![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 9/116:00 am -
1 stop11h 38m
Tue 9/157:00 am -
2 stops16h 01m
Deal found 8/5![United Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/265:00 am -
2 stops12h 38m
Thu 9/32:20 pm -
1 stop10h 39m
Deal found 8/4![United Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Fri 9/116:00 am -
1 stop11h 38m
Fri 9/187:00 am -
2 stops14h 11m
Deal found 8/3![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Tue 9/86:00 am -
1 stop11h 38m
Sat 9/121:00 am -
2 stops14h 50m
Deal found 8/4![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 8/2. 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.
Tue 9/156:00 am -
2 stops14h 50m
Fri 9/187:00 am -
2 stops14h 11m
Deal found 8/2![United Airlines logo]()
$469
This Delta deal was found by Cheapflights users on 8/5. 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.
Sun 11/16:01 pm -
2 stops15h 04m
Fri 11/132:05 pm -
2 stops13h 53m
Deal found 8/5![Delta logo]()
$472
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/265:00 am -
2 stops12h 38m
Thu 8/277:00 am -
2 stops14h 11m
Deal found 8/3![United Airlines logo]()
$499
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 12/75:55 am -
2 stops12h 25m
Wed 12/165:40 am -
2 stops11h 10m
Deal found 8/3![Southwest logo]()
$500
Best flights from Ontario to San JuanDiscover carefully curated flight deals from Ontario to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
Discover carefully curated flight deals from Ontario to San Juan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 10/56:00 am -
1 stop11h 38m
Thu 10/152:00 pm -
1 stop9h 58m
Deal found 8/3![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 8/3. 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.
Mon 10/510:05 am -
2 stops11h 15m
Thu 10/155:00 am -
2 stops12h 25m
Deal found 8/3![Southwest logo]()
$508
This United Airlines deal was found by Cheapflights users on 8/5. 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 1/205:00 am -
2 stops13h 22m
Fri 1/298:10 am -
2 stops14h 34m
Deal found 8/5![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/2. 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.
Mon 8/247:13 pm -
2 stops17h 29m
Wed 8/261:00 am -
2 stops14h 50m
Deal found 8/2![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Tue 1/195:00 am -
1 stop9h 25m
Sat 1/307:45 am -
2 stops14h 02m
Deal found 8/5![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sat 10/245:00 am -
2 stops12h 38m
Sat 10/316:40 am -
2 stops14h 21m
Deal found 8/6![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 1/196:45 am -
2 stops13h 51m
Fri 1/298:10 am -
2 stops14h 34m
Deal found 8/1![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Tue 9/295:00 am -
2 stops12h 38m
Tue 10/67:00 am -
2 stops13h 41m
Deal found 8/5![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Fri 10/25:00 am -
1 stop9h 38m
Mon 10/52:55 pm -
1 stop10h 04m
Deal found 8/4![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 8/4. 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 12/95:00 am -
1 stop9h 25m
Fri 12/112:25 pm -
1 stop9h 55m
Deal found 8/4![United Airlines logo]()
$622
This United Airlines deal was found by Cheapflights users on 8/1. 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 12/26:45 am -
1 stop10h 15m
Thu 12/32:25 pm -
1 stop9h 55m
Deal found 8/1![United Airlines logo]()
$622
Last-minute flights from Ontario to San JuanDiscover last-minute flight deals from Ontario to San Juan. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to San Juan. Data last updated August 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/265:00 am -
2 stops12h 38m
Thu 9/32:20 pm -
1 stop10h 39m
Deal found 8/4![United Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/265:00 am -
2 stops12h 38m
Thu 8/277:00 am -
2 stops14h 11m
Deal found 8/3![United Airlines logo]()
$499
This Southwest deal was found by Cheapflights users on 8/3. 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.
Sat 9/51:00 pm -
2 stops18h 10m
Thu 9/106:30 am -
2 stops12h 00m
Deal found 8/3![Southwest logo]()
$501
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Tue 9/86:00 am -
1 stop11h 38m
Sat 9/121:00 am -
2 stops14h 50m
Deal found 8/4![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 9/116:00 am -
1 stop11h 38m
Tue 9/157:00 am -
2 stops16h 01m
Deal found 8/5![United Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 8/3. 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.
Fri 9/116:00 am -
1 stop11h 38m
Fri 9/187:00 am -
2 stops14h 11m
Deal found 8/3![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 8/2. 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.
Tue 9/156:00 am -
2 stops14h 50m
Fri 9/187:00 am -
2 stops14h 11m
Deal found 8/2![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 9/265:00 am -
1 stop9h 38m
Sat 10/32:55 pm -
1 stop10h 04m
Deal found 8/5![United Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Mon 9/282:22 pm -
2 stops22h 18m
Thu 10/156:00 am -
1 stop10h 30m
Deal found 8/1![American Airlines logo]()
$520
One-way flights from Ontario to San JuanSearch for one-way flight options from Ontario to San Juan. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
Search for one-way flight options from Ontario to San Juan. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/265:00 am -
2 stops12h 38m
Deal found 8/5![United Airlines logo]()
$207
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 1/306:00 am -
1 stop11h 26m
Deal found 8/5![United Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 8/3. 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.
Fri 11/138:45 pm -
2 stops11h 55m
Deal found 8/3![Southwest logo]()
$254
This JetBlue deal was found by Cheapflights users on 8/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:39 pm -
1 stop12h 00m
Deal found 8/4![JetBlue logo]()
$255
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Tue 10/1310:10 pm -
1 stop13h 51m
Deal found 8/3![American Airlines logo]()
$260
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Wed 10/147:34 pm -
2 stops11h 12m
Deal found 8/3![American Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:00 am -
2 stops17h 15m
Deal found 8/4![Frontier logo]()
$269
This JetBlue deal was found by Cheapflights users on 8/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:05 pm -
1 stop13h 51m
Deal found 8/5![JetBlue logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:00 am -
2 stops12h 43m
Deal found 8/4![Frontier logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Tue 11/35:00 am -
2 stops12h 24m
Deal found 8/5![United Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:09 pm -
2 stops16h 07m
Deal found 8/4![Frontier logo]()
$310
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Mon 10/1211:59 pm -
2 stops12h 39m
Deal found 8/3![American Airlines logo]()
$315
Find 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 August 6, 2026.
Round-trip from | $414 (United Airlines) |
|---|---|
One-way from | $207 (United Airlines) |
Popular in | November |
Cheapest in | October |
Average price | $467 |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated August 6, 2026.
Use the filters below to find and compare flights from Ontario to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Mon 10/5
6:00 am-8:38 pm
1 stop11h 38m
San Juan Luis Munoz Marin Intl
Thu 10/15
2:00 pm-8:58 pm
1 stop9h 58m
$414
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Wed 1/20
5:00 am-10:22 pm
2 stops13h 22m
San Juan Luis Munoz Marin Intl
Fri 1/29
8:10 am-6:44 pm
2 stops14h 34m
$464
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Mon 8/24
7:13 pm-3:42 pm
2 stops17h 29m
San Juan Luis Munoz Marin Intl
Wed 8/26
1:00 am-12:50 pm
2 stops14h 50m
$504
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Tue 1/19
5:00 am-6:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Sat 1/30
7:45 am-5:47 pm
2 stops14h 02m
$504
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Sat 10/24
5:00 am-8:38 pm
2 stops12h 38m
San Juan Luis Munoz Marin Intl
Sat 10/31
6:40 am-6:01 pm
2 stops14h 21m
$504
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Tue 1/19
6:45 am-12:36 am
2 stops13h 51m
San Juan Luis Munoz Marin Intl
Fri 1/29
8:10 am-6:44 pm
2 stops14h 34m
$504
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Mon 10/5
10:05 am-12:20 am
2 stops11h 15m
San Juan Luis Munoz Marin Intl
Thu 10/15
5:00 am-2:25 pm
2 stops12h 25m
$508
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Tue 9/29
5:00 am-8:38 pm
2 stops12h 38m
San Juan Luis Munoz Marin Intl
Tue 10/6
7:00 am-5:41 pm
2 stops13h 41m
$557
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Fri 10/2
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Mon 10/5
2:55 pm-9:59 pm
1 stop10h 04m
$557
Quickest round-trip
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Wed 12/9
5:00 am-6:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Fri 12/11
2:25 pm-8:20 pm
1 stop9h 55m
$622
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from Ontario to San Juan
Have a flexible travel schedule? Discover the best time to fly to San Juan from Ontario with our price prediction graph.
ONT-PR1
ONT-SJU
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
ONT-PR1
ONT-SJU
What is the cheapest month to book a flight from Ontario to San Juan?
Currently, October is the cheapest month in which you can book a flight from Ontario to San Juan (average of $404). Flying from Ontario to San Juan in November is currently the most expensive (average of $655). 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.
How much does it cost to fly round-trip from Ontario to San Juan?
Airfare is typical for this route at the moment.
Ontario to San Juan flights typically cost between $396 and $536 in November.The cheapest round-trip price found within the last 5 days was $414 on United Airlines (Nov 7-Nov 16).
How far ahead should I book a flight from Ontario to San Juan?
To ensure you get the cheapest price possible for a flight from Ontario to San Juan, you should look to book at least 65 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.
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 August 6, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to San Juan. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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.
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Alternative routes for Ontario to San Juan
See prices for flight routes from nearby airports that may be better suited for you.
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Complete your trip to San Juan by adding a car rental and/or hotel reservation to your travel itinerary.
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.
Ontario and San Juan flights
Browse other Ontario and San Juan flight options. Last updated on August 6, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on August 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$530 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$176 | Average$513 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$318 | Average$516 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$360 | Average$577 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$419 | Average$562 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$460 | Average$584 | FlexibilityNo cancel fee | On-time62% |