$139+ Cheap flights from Ontario (ONT) to Puerto Rico
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SJU
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Puerto Rico 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 Puerto Rico
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to Puerto RicoExplore the most affordable flight options available from Ontario to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from Ontario to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:00 am -
2 stops22h 58m
Fri 12/112:24 pm -
2 stops21h 20m
Deal found 11/5![Frontier logo]()
$328
This Mytrip deal was found by Cheapflights users on 11/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/302:01 pm -
2 stops31h 57m
Tue 12/155:01 am -
2 stops21h 16m
Deal found 11/10![Frontier logo]()
$343
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:44 am -
2 stops21h 53m
Sun 12/203:10 pm -
2 stops19h 57m
Deal found 11/5![Multiple Airlines logo]()
$414
This Mytrip deal was found by Cheapflights users on 11/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:44 am -
2 stops21h 53m
Tue 12/227:28 am -
2 stops27h 39m
Deal found 11/7![Frontier logo]()
$420
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:36 pm -
2 stops18h 01m
Tue 12/155:01 am -
2 stops21h 16m
Deal found 11/9![Frontier logo]()
$423
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:40 am -
2 stops18h 53m
Wed 12/95:01 am -
2 stops21h 16m
Deal found 11/5![Frontier logo]()
$428
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:30 am -
2 stops21h 54m
Tue 12/84:04 pm -
2 stops19h 40m
Deal found 11/5![Frontier logo]()
$431
This Mytrip deal was found by Cheapflights users on 11/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:00 pm -
2 stops16h 40m
Tue 12/85:01 am -
2 stops21h 16m
Deal found 11/7![Frontier logo]()
$432
This Mytrip deal was found by Cheapflights users on 11/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am -
2 stops19h 10m
Tue 12/155:01 am -
2 stops21h 16m
Deal found 11/10![Frontier logo]()
$438
This Mytrip deal was found by Cheapflights users on 11/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/811:00 am -
2 stops19h 37m
Tue 12/154:04 pm -
2 stops19h 40m
Deal found 11/8![Frontier logo]()
$440
Best flights from Ontario to Puerto RicoDiscover carefully curated flight deals from Ontario to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from Ontario to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This United Airlines deal was found by Cheapflights users on 11/7. 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 2/36:00 am -
1 stop11h 24m
Wed 2/108:25 am -
2 stops16h 35m
Deal found 11/7![United Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 11/8. 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.
Sun 12/68:45 pm -
2 stops10h 55m
Sun 12/135:35 am -
2 stops12h 30m
Deal found 11/8![Southwest logo]()
$615
This United Airlines deal was found by Cheapflights users on 11/10. 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 1/257:00 am -
1 stop10h 00m
Mon 2/18:05 am -
2 stops16h 20m
Deal found 11/10![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 11/7. 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 12/85:00 am -
2 stops15h 36m
Thu 12/102:21 pm -
1 stop10h 50m
Deal found 11/7![United Airlines logo]()
$604
This Southwest deal was found by Cheapflights users on 11/9. 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 4/197:45 am -
2 stops11h 30m
Mon 4/265:30 am -
2 stops12h 50m
Deal found 11/9![Southwest logo]()
$673
This United Airlines deal was found by Cheapflights users on 11/9. 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 2/196:00 am -
1 stop11h 24m
Fri 2/267:40 am -
2 stops13h 55m
Deal found 11/9![United Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Mon 1/256:37 pm -
2 stops14h 55m
Thu 2/42:21 pm -
1 stop10h 39m
Deal found 11/6![United Airlines logo]()
$614
This United Airlines deal was found by Cheapflights users on 11/5. 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 -
2 stops12h 24m
Tue 1/262:21 pm -
1 stop10h 39m
Deal found 11/5![United Airlines logo]()
$614
This United Airlines deal was found by Cheapflights users on 11/10. 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
Sat 12/196:35 am -
1 stop10h 07m
Deal found 11/10![United Airlines logo]()
$640
This United Airlines deal was found by Cheapflights users on 11/5. 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 1/91:40 pm -
2 stops12h 35m
Sat 1/167:40 am -
2 stops13h 55m
Deal found 11/5![United Airlines logo]()
$696
This United Airlines deal was found by Cheapflights users on 11/9. 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 1/55:00 am -
1 stop9h 25m
Wed 1/132:21 pm -
1 stop10h 39m
Deal found 11/9![United Airlines logo]()
$697
Last-minute flights from Ontario to Puerto RicoDiscover last-minute flight deals from Ontario to Puerto Rico. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Puerto Rico. Data last updated November 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:40 am -
2 stops18h 53m
Wed 12/95:01 am -
2 stops21h 16m
Deal found 11/5![Frontier logo]()
$428
This Mytrip deal was found by Cheapflights users on 11/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/302:01 pm -
2 stops31h 57m
Tue 12/155:01 am -
2 stops21h 16m
Deal found 11/10![Frontier logo]()
$343
This Mytrip deal was found by Cheapflights users on 11/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/12:00 pm -
2 stops16h 40m
Tue 12/85:01 am -
2 stops21h 16m
Deal found 11/7![Frontier logo]()
$432
This Mytrip deal was found by Cheapflights users on 11/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am -
2 stops19h 10m
Tue 12/155:01 am -
2 stops21h 16m
Deal found 11/10![Frontier logo]()
$438
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:30 am -
2 stops21h 54m
Tue 12/84:04 pm -
2 stops19h 40m
Deal found 11/5![Frontier logo]()
$431
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:00 am -
2 stops22h 58m
Fri 12/112:24 pm -
2 stops21h 20m
Deal found 11/5![Frontier logo]()
$328
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:36 pm -
2 stops18h 01m
Tue 12/155:01 am -
2 stops21h 16m
Deal found 11/9![Frontier logo]()
$423
This Mytrip deal was found by Cheapflights users on 11/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/811:00 am -
2 stops19h 37m
Tue 12/154:04 pm -
2 stops19h 40m
Deal found 11/8![Frontier logo]()
$440
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:44 am -
2 stops21h 53m
Sun 12/203:10 pm -
2 stops19h 57m
Deal found 11/5![Multiple Airlines logo]()
$414
This Mytrip deal was found by Cheapflights users on 11/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/148:44 am -
2 stops21h 53m
Tue 12/227:28 am -
2 stops27h 39m
Deal found 11/7![Frontier logo]()
$420
One-way flights from Ontario to Puerto RicoSearch for one-way flight options from Ontario to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from Ontario to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:44 am -
2 stops25h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/319:00 am -
2 stops37h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$157
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:44 am -
2 stops21h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$207
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3010:48 pm -
2 stops20h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$229
This Mytrip deal was found by Cheapflights users on 11/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/156:00 am -
2 stops15h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$243
This Mytrip deal was found by Cheapflights users on 11/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
2 stops15h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Frontier logo]()
$244
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:44 am -
2 stops21h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$247
This Mytrip deal was found by Cheapflights users on 11/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:00 am -
2 stops15h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Frontier logo]()
$249
This Mytrip deal was found by Cheapflights users on 11/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:30 am -
2 stops19h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Frontier logo]()
$252
Find flight deals from Ontario to Puerto Rico
Keep the following information in mind while searching for Ontario to Puerto Rico flight deals. Data was last updated November 10, 2026.
Round-trip from | $328 (Mytrip) |
|---|---|
One-way from | $139 (Mytrip) |
Popular in | June |
Cheapest in | September |
Average price | $499 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Puerto Rico 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 7,457,451 searches. Data last updated November 10, 2026.
Use the filters below to find and compare flights from Ontario to Puerto Rico 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
Sat 12/12
11:30 am-1:58 pm
2 stops22h 28m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$261
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Tue 1/5
6:09 am-1:39 am
2 stops15h 30m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$273
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Thu 1/14
5:05 am-1:16 am
2 stops16h 11m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$287
Quickest round-trip
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Tue 12/8
5:00 am-6:25 pm
1 stop9h 25m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$302
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Wed 1/20
6:00 am-9:24 pm
1 stop11h 24m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$302
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Fri 4/23
5:00 am-5:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$302
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Thu 12/31
5:55 am-9:24 pm
1 stop11h 29m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$307
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Sun 2/7
5:00 am-9:00 pm
2 stops12h 00m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$307
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Thu 1/14
6:00 am-9:24 pm
1 stop11h 24m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$341
OntarioSan Juan
ONT Ontario - SJU San Juan Luis Munoz Marin Intl
ONTSJU
Ontario
Wed 2/3
6:00 am-9:24 pm
1 stop11h 24m
San Juan Luis Munoz Marin Intl
Wed 2/10
8:25 am-9:00 pm
2 stops16h 35m
$504
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Ontario to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Ontario with our price prediction graph.
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 Puerto Rico
ONT-PR0
ONT-SJU
What is the cheapest month to book a flight from Ontario to Puerto Rico?
Currently, August is the cheapest month in which you can book a flight from Ontario to Puerto Rico (average of $456). Flying from Ontario to Puerto Rico in November is currently the most expensive (average of $682). 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 far ahead should I book a flight from Ontario to Puerto Rico?
The price you pay for your flight from Ontario to Puerto Rico may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated November 10, 2026.
Read through reviews of airlines operating flights from Ontario to Puerto Rico, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.4
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.4
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.4
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.4
Food
7.0
Overall
8.0
Comfort
8.0
Boarding
8.1
Crew
8.6
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 Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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.
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Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Puerto Rico by cabin class
Find flights from Ontario to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Puerto Rico flights
Browse other Ontario and Puerto Rico flight options. Last updated on November 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Puerto Rico
Discover the top 4 airlines that operate flights from Ontario to Puerto Rico. 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 7,457,451 searches. Data last updated November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$552 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$318 | Average$564 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$382 | Average$579 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$419 | Average$562 | FlexibilityNo cancel fee | On-time63% |