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Port of Spain

$438+ Cheap flights from Ontario (ONT) to Port of Spain (POS)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POS
Feb 21 — Feb 281
Sat 2/21
Sat 2/28
1 adult, Economy
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Cheap flight deals from Ontario to Port of Spain

Cheapest flights from Ontario to Port of Spain
Explore the most affordable flight options available from Ontario to Port of Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 22, 2026.

This United Airlines deal was found by Cheapflights users on 1/21. 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.
Sun 3/86:00 am
ONT
-
POS
1 stop14h 23m
United Airlines
Sat 3/1412:30 am
POS
-
ONT
2 stops23h 27m
United Airlines
Deal found 1/21$784
This United Airlines deal was found by Cheapflights users on 1/20. 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 3/215:15 am
ONT
-
POS
2 stops39h 08m
United Airlines
Tue 3/2412:30 am
POS
-
ONT
2 stops23h 20m
United Airlines
Deal found 1/20$794
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Sun 8/306:30 pm
ONT
-
POS
2 stops27h 20m
United Airlines
Fri 9/412:30 am
POS
-
ONT
2 stops20h 17m
United Airlines
Deal found 1/19$797
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/266:37 pm
ONT
-
POS
2 stops25h 46m
United Airlines
Sat 3/71:30 am
POS
-
ONT
2 stops24h 27m
United Airlines
Deal found 1/20$824
This United Airlines deal was found by Cheapflights users on 1/22. 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 2/216:00 am
ONT
-
POS
1 stop14h 23m
United Airlines
Fri 2/271:30 am
POS
-
ONT
2 stops15h 13m
United Airlines
Deal found 1/22$844
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/48:00 am
ONT
-
POS
1 stop12h 23m
United Airlines
Fri 3/61:30 am
POS
-
ONT
2 stops23h 20m
United Airlines
Deal found 1/21$854
This United Airlines deal was found by Cheapflights users on 1/19. 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 1/266:00 am
ONT
-
POS
1 stop14h 23m
United Airlines
Sun 2/11:30 am
POS
-
ONT
2 stops23h 28m
United Airlines
Deal found 1/19$874
This American Airlines deal was found by Cheapflights users on 1/22. 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 1/276:22 am
ONT
-
POS
2 stops12h 26m
American Airlines
Fri 1/306:30 am
POS
-
ONT
2 stops14h 52m
American Airlines
Deal found 1/22$962

Find flight deals from Ontario to Port of Spain

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Port of Spain (POS). 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 January 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$784
(United Airlines)

One-way from

$438
(United Airlines)

Popular in

February

Cheapest in

May

Average price

$542
Provider with most accurate pricing for Ontario-Port of Spain Piarco Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Port of Spain Piarco Intl flights.
Search Deals
From Ontario to Port of Spain Piarco Intl
Search Deals
One-way flight from Ontario to Port of Spain Piarco Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Port of Spain 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 January 22, 2026.
Use the filters below to find and compare flights from Ontario to Port of Spain that are best for you.

Fly from

Ontario

Fly to

Port of Spain

Route

Depart

Return

Price

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sun 3/8

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Sat 3/14

12:30 am-8:57 pm

2 stops23h 27m

$784

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 3/21

5:15 am-11:23 pm

2 stops39h 08m

Port of Spain Piarco Intl

Tue 3/24

12:30 am-8:50 pm

2 stops23h 20m

$794

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Thu 2/26

6:37 pm-12:23 am

2 stops25h 46m

Port of Spain Piarco Intl

Sat 3/7

1:30 am-9:57 pm

2 stops24h 27m

$824

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 2/21

6:00 am-12:23 am

1 stop14h 23m

Port of Spain Piarco Intl

Fri 2/27

1:30 am-12:43 pm

2 stops15h 13m

$844

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Wed 3/4

8:00 am-12:23 am

1 stop12h 23m

Port of Spain Piarco Intl

Fri 3/6

1:30 am-10:57 pm

2 stops25h 27m

$854

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sun 2/15

6:00 am-12:23 am

1 stop14h 23m

$438

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Mon 2/9

1:53 pm-12:23 am

2 stops30h 30m

$656

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Compare providers for flights from Ontario to Port of Spain

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Port of Spain in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Port of Spain flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Port of Spain flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Port of Spain flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Port of Spain flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Port of Spain flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Port of Spain

Have a flexible travel schedule? Discover the best time to fly to Port of Spain 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 Port of Spain

What is the cheapest month to book a flight from Ontario to Port of Spain?

Currently, January is the cheapest month in which you can book a flight from Ontario to Port of Spain (average of $248). Flying from Ontario to Port of Spain in September is currently the most expensive (average of $534). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Port of Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Port of Spain?

    There are many flights that can get you from Ontario to Port of Spain in 14h 23m. Fly via United Airlines to get the fastest option. There are 3885 mi between Ontario and Port of Spain.

  • Can I find deals for flights from Ontario to Port of Spain that include hotel bookings?

    Yes. In addition to deals on Ontario to Port of Spain flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Port of Spain?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Port of Spain.

  • Can I find deals for business class flights from Ontario to Port of Spain?

    Yes. Cheapflights offers flight deals from Ontario to Port of Spain 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 Port of Spain?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Port of Spain (average of $248). Flying from Ontario to Port of Spain in September is currently the most expensive (average of $534). 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

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