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Port of Spain

$255+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$673
(United Airlines)

One-way from

$255
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$563
From Ontario to Port of Spain Piarco Intl
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One-way flight from Ontario to Port of Spain Piarco Intl
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Highest demand for flights based on searches. 8% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/251:53 pmONT - POS
2 stops30h 30mUnited Airlines
Fri 10/3112:30 amPOS - ONT
2 stops15h 03mUnited Airlines
Deal found 9/10$673
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:56 pmONT - POS
1 stop12h 42mJetBlue
Sun 10/53:59 pmPOS - ONT
1 stop32h 30mJetBlue
Deal found 9/10$679
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:49 pmONT - POS
2 stops18h 36mAmerican Airlines
Sat 11/13:25 pmPOS - ONT
2 stops24h 28mAmerican Airlines
Deal found 9/10$683
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:59 pmONT - POS
2 stops18h 21mAmerican Airlines
Tue 10/287:00 amPOS - ONT
2 stops17h 36mAmerican Airlines
Deal found 9/10$723
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/246:36 pmONT - POS
2 stops25h 47mUnited Airlines
Mon 10/2712:30 amPOS - ONT
2 stops23h 14mUnited Airlines
Deal found 9/10$793
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/176:00 amONT - POS
1 stop14h 23mUnited Airlines
Fri 10/2412:30 amPOS - ONT
2 stops15h 21mUnited Airlines
Deal found 9/11$823
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/16:00 amONT - POS
1 stop14h 23mUnited Airlines
Tue 10/1412:30 amPOS - ONT
1 stop23h 54mUnited Airlines
Deal found 9/11$852
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/96:00 amONT - POS
1 stop14h 23mUnited Airlines
Wed 10/1512:30 amPOS - ONT
2 stops14h 43mUnited Airlines
Deal found 9/10$878
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/36:00 amONT - POS
1 stop14h 23mUnited Airlines
Sat 10/412:30 amPOS - ONT
2 stops15h 21mUnited Airlines
Deal found 9/10$903
This United Airlines deal was found by Cheapflights users on 9/11. 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 10/116:00 amONT - POS
1 stop14h 23mUnited Airlines
Fri 10/1712:30 amPOS - ONT
2 stops15h 21mUnited Airlines
Deal found 9/11$913

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 September 11, 2025.
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

Sat 10/25

1:53 pm-11:23 pm

2 stops30h 30m

Port of Spain Piarco Intl

Fri 10/31

12:30 am-12:33 pm

2 stops15h 03m

$673

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 10/25

4:49 pm-2:25 pm

2 stops18h 36m

Port of Spain Piarco Intl

Sat 11/1

3:25 pm-12:53 pm

2 stops24h 28m

$683

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 10/24

11:59 pm-9:20 pm

2 stops18h 21m

Port of Spain Piarco Intl

Tue 10/28

7:00 am-9:36 pm

2 stops17h 36m

$723

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Thu 10/16

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Fri 10/24

12:30 am-12:51 pm

2 stops15h 21m

$793

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 10/17

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Fri 10/24

12:30 am-12:51 pm

2 stops15h 21m

$823

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Wed 10/1

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Tue 10/14

12:30 am-9:24 pm

1 stop23h 54m

$852

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Thu 10/9

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Wed 10/15

12:30 am-12:13 pm

2 stops14h 43m

$878

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 10/3

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Sat 10/4

12:30 am-12:51 pm

2 stops15h 21m

$903

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 10/11

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Fri 10/17

12:30 am-12:51 pm

2 stops15h 21m

$913

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Tue 9/23

10:56 pm-2:34 pm

1 stop12h 38m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 14 results
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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, October is the cheapest month in which you can book a flight from Ontario to Port of Spain (average of $435). Flying from Ontario to Port of Spain in December is currently the most expensive (average of $710). 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.

Reviews of airlines servicing Port of Spain

Get insights into the airlines that provide service to Port of Spain. 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 Port of Spain. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines from Ontario to Port of Spain have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 18h 36m. Fly via United Airlines or American Airlines to get the fastest option. There are 3885 mi between Ontario and Port of Spain. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Ontario to Port of Spain one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $269. Users have also found prices from $363 and $379 on United Airlines and American Airlines, respectively.

  • 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, October is the cheapest month in which you can book a flight from Ontario to Port of Spain (average of $435). Flying from Ontario to Port of Spain in December is currently the most expensive (average of $710). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Ontario to Port of Spain

Discover the top airline that operate flights from Ontario to Port of Spain. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$517Average$628FlexibilityNo cancel feeOn-time69%

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